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103. ALMA 13CO(J = 1 − 0) observations of NGC 604 in M33: Physical properties of molecular clouds

Author

Phiri, Saul, Kirk, Jason Matthew, Ward-Thompson, Derek, Sansom, Anne E, and Bendo, George

Subjects
F540, F500
Abstract

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 13CO(J = 1 − 0) line and 104 GHz continuum emission from NGC 604, a giant H ii region (GHR) in the nearby spiral galaxy M33. Our high spatial resolution images (3.2″ × 2.4″, corresponding to 13 × 10 pc physical scale) allow us to detect fifteen molecular clouds. We find spatial offsets between the 13CO and 104 GHz continuum emission and also detect continuum emission near the centre of the GHR. The identified molecular clouds have sizes ranging from 5-21 pc, linewidths of 0.3-3.0 km s−1 and luminosity-derived masses of (0.4–80.5) × 103 M⊙. These molecular clouds are in near virial equilibrium, with a Spearman correlation coefficient of 0.98. The linewidth-size relationship for these clouds is offset from the corresponding relations for the Milky Way and for NGC 300, although this may be an artefact of the dendrogram process.

Published
2021

105. Reduced NCOR2 expression accelerates androgen deprivation therapy failure in prostate cancer

Author

Long, Mark D., primary, Jacobi, Justine J., additional, Singh, Prashant K., additional, Llimos, Gerard, additional, Wani, Sajad A., additional, Rowsam, Aryn M., additional, Rosario, Spencer R., additional, Hoogstraat, Marlous, additional, Linder, Simon, additional, Kirk, Jason, additional, Affronti, Hayley C., additional, Bergman, Andries, additional, Zwart, Wilbert, additional, Campbell, Moray J., additional, and Smiraglia, Dominic J., additional

Published
2021
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109. The JCMT BISTRO Survey: An 850/450 μm Polarization Study of NGC 2071IR in Orion B

Author

Lyo, A-Ran, primary, Kim, Jongsoo, additional, Sadavoy, Sarah, additional, Johnstone, Doug, additional, Berry, David, additional, Pattle, Kate, additional, Kwon, Woojin, additional, Bastien, Pierre, additional, Onaka, Takashi, additional, Di Francesco, James, additional, Kang, Ji-Hyun, additional, Furuya, Ray, additional, Hull, Charles L. H., additional, Tamura, Motohide, additional, Koch, Patrick M., additional, Ward-Thompson, Derek, additional, Hasegawa, Tetsuo, additional, Hoang, Thiem, additional, Arzoumanian, Doris, additional, Won Lee, Chang, additional, Lee, Chin-Fei, additional, Byun, Do-Young, additional, Kirchschlager, Florian, additional, Doi, Yasuo, additional, Kim, Kee-Tae, additional, Hwang, Jihye, additional, Diep, Pham Ngoc, additional, Fanciullo, Lapo, additional, Lee, Sang-Sung, additional, Park, Geumsook, additional, Yoo, Hyunju, additional, Chung, Eun Jung, additional, Whitworth, Anthony, additional, Mairs, Steve, additional, Soam, Archana, additional, Liu, Tie, additional, Tang, Xindi, additional, Coudé, Simon, additional, André, Philippe, additional, Bourke, Tyler L., additional, Vivien Chen, Huei-Ru, additional, Chen, Zhiwei, additional, Ping Chen, Wen, additional, Chen, Mike, additional, Ching, Tao-Chung, additional, Cho, Jungyeon, additional, Choi, Minho, additional, Choi, Yunhee, additional, Chrysostomou, Antonio, additional, Dai, Sophia, additional, Dowell, C. Darren, additional, Duan, Hao-Yuan, additional, Duan, Yan, additional, Eden, David, additional, Eswaraiah, Chakali, additional, Eyres, Stewart, additional, Fiege, Jason, additional, Fissel, Laura M., additional, Franzmann, Erica, additional, Friberg, Per, additional, Friesen, Rachel, additional, Fuller, Gary, additional, Gledhill, Tim, additional, Graves, Sarah, additional, Greaves, Jane, additional, Griffin, Matt, additional, Gu, Qilao, additional, Han, Ilseung, additional, Hatchell, Jannifer, additional, Hayashi, Saeko, additional, Houde, Martin, additional, Inoue, Tsuyoshi, additional, Inutsuka, Shu-ichiro, additional, Iwasaki, Kazunari, additional, Jeong, Il-Gyo, additional, Kang, Miju, additional, Kataoka, Akimasa, additional, Kawabata, Koji, additional, Kemper, Francisca, additional, Kim, Gwanjeong, additional, Kim, Mi-Ryang, additional, Kim, Shinyoung, additional, Kim, Kyoung Hee, additional, Kirk, Jason, additional, Kobayashi, Masato I. N., additional, Könyves, Vera, additional, Kusune, Takayoshi, additional, Kwon, Jungmi, additional, Lacaille, Kevin, additional, Lai, Shih-Ping, additional, Law, Chi-Yan, additional, Lee, Jeong-Eun, additional, Lee, Yong-Hee, additional, Lee, Hyeseung, additional, Li, Dalei, additional, Li, Di, additional, Li, Hua-Bai, additional, Liu, Hong-Li, additional, Liu, Junhao, additional, Liu, Sheng-Yuan, additional, Lu, Xing, additional, Matsumura, Masafumi, additional, Matthews, Brenda, additional, Moriarty-Schieven, Gerald, additional, Nagata, Tetsuya, additional, Nakamura, Fumitaka, additional, Nakanishi, Hiroyuki, additional, Bich Ngoc, Nguyen, additional, Ohashi, Nagayoshi, additional, Parsons, Harriet, additional, Peretto, Nicolas, additional, Priestley, Felix, additional, Pyo, Tae-soo, additional, Qian, Lei, additional, Qiu, Keping, additional, Rao, Ramprasad, additional, Rawlings, Jonathan, additional, Rawlings, Mark G., additional, Retter, Brendan, additional, Richer, John, additional, Rigby, Andrew, additional, Saito, Hiro, additional, Savini, Giorgio, additional, Scaife, Anna, additional, Seta, Masumichi, additional, Shimajiri, Yoshito, additional, Shinnaga, Hiroko, additional, Tahani, Mehrnoosh, additional, Tang, Ya-Wen, additional, Tomisaka, Kohji, additional, Tram, Le Ngoc, additional, Tsukamoto, Yusuke, additional, Viti, Serena, additional, Wang, Jia-Wei, additional, Wang, Hongchi, additional, Xie, Jinjin, additional, Yen, Hsi-Wei, additional, Yuan, Jinghua, additional, Yun, Hyeong-Sik, additional, Zenko, Tetsuya, additional, Zhang, Guoyin, additional, Zhang, Chuan-Peng, additional, Zhang, Yapeng, additional, Zhou, Jianjun, additional, Zhu, Lei, additional, de Looze, Ilse, additional, Falle, Sam, additional, Robitaille, Jean-François, additional, and van Loo, Sven, additional

Published
2021
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112. Abstract 2197: Dysregulated alternative splicing landscape identifies intron retention as a hallmark and spliceosome as a therapeutic vulnerability in aggressive prostate cancer

Author

Zhang, Dingxiao, primary, Hu, qiang, additional, Liu, Xiaozhuo, additional, Ji, Yibing, additional, Chao, Hsueh-Ping, additional, Tracz, Amanda, additional, Kirk, Jason, additional, Buonamici, Silvia, additional, Zhu, Ping, additional, Wang, Jianmin, additional, liu, song, additional, and Tang, Dean, additional

Published
2021
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114. The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

Author

Chakali, Eswaraiah, Li, Di, Furuya, Ray S., Hasegawa, Tetsuo, Ward-Thompson, Derek, Qiu, Keping, Ohashi, Nagayoshi, Pattle, Kate, Sadavoy, Sarah, Hull, Charles L. H., Berry, David, Doi, Yasuo, Ching, Tao-Chung, Lai, Shih-Ping, Wang, Jia-Wei, Koch, Patrick M., Kwon, Jungmi, Kwon, Woojin, Bastien, Pierre, Arzoumanian, Doris, Coudé, Simon, Soam, Archana, Fanciullo, Lapo, Yen, Hsi-Wei, Liu, Junhao, Hoang, Thiem, Ping Chen, Wen, Shimajiri, Yoshito, Liu, Tie, Chen, Zhiwei, Li, Hua-bai, Lyo, A-Ran, Hwang, Jihye, Johnstone, Doug, Rao, Ramprasad, Bich Ngoc, Nguyen, Ngoc Diep, Pham, Mairs, Steve, Parsons, Harriet, Tamura, Motohide, Tahani, Mehrnoosh, Vivien Chen, Huei-Ru, Nakamura, Fumitaka, Shinnaga, Hiroko, Tang, Ya-Wen, Cho, Jungyeon, Won Lee, Chang, Inutsuka, Shu-ichiro, Inoue, Tsuyoshi, Iwasaki, Kazunari, Qian, Lei, Xie, Jinjin, Li, Dalei, Liu, Hong-Li, Zhang, Chuan-Peng, Chen, Mike, Zhang, Guoyin, Zhu, Lei, Zhou, Jianjun, André, Philippe, Liu, Sheng-Yuan, Yuan, Jinghua, Lu, Xing, Peretto, Nicolas, Bourke, Tyler L., Byun, Do-Young, Dai, Sophia, Duan, Yan, Duan, Hao-Yuan, Eden, David, Matthews, Brenda, Fiege, Jason, Fissel, Laura M., Kim, Kee-Tae, Lee, Chin-Fei, Kim, Jongsoo, Pyo, Tae-Soo, Choi, Yunhee, Choi, Minho, Chrysostomou, Antonio, Jung Chung, Eun, Ngoc Tram, Le, Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko, Houde, Martin, Kawabata, Koji, Jeong, Il-Gyo, Kang, Ji-hyun, Kang, Sung-ju, Kang, Miju, Kataoka, Akimasa, Kemper, Francisca, Rawlings, Mark, Rawlings, Jonathan, Retter, Brendan, Richer, John, Rigby, Andrew, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Kim, Gwanjeong, Hee Kim, Kyoung, Kim, Mi-Ryang, Kirchschlager, Florian, Kirk, Jason, Kobayashi, Masato I. N., Konyves, Vera, Kusune, Takayoshi, Lacaille, Kevin, Law, Chi-Yan, Lee, Sang-Sung, Lee, Yong-Hee, Matsumura, Masafumi, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakanishi, Hiroyuki, Onaka, Takashi, Park, Geumsook, Tang, Xindi, Tomisaka, Kohji, Tsukamoto, Yusuke, Viti, Serena, Wang, Hongchi, Whitworth, Anthony, Yoo, Hyunju, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Yapeng, de Looze, Ilse, Dowell, C. Darren, Eyres, Stewart, Falle, Sam, Robitaille, Jean-François, van Loo, Sven, Chakali, Eswaraiah, Li, Di, Furuya, Ray S., Hasegawa, Tetsuo, Ward-Thompson, Derek, Qiu, Keping, Ohashi, Nagayoshi, Pattle, Kate, Sadavoy, Sarah, Hull, Charles L. H., Berry, David, Doi, Yasuo, Ching, Tao-Chung, Lai, Shih-Ping, Wang, Jia-Wei, Koch, Patrick M., Kwon, Jungmi, Kwon, Woojin, Bastien, Pierre, Arzoumanian, Doris, Coudé, Simon, Soam, Archana, Fanciullo, Lapo, Yen, Hsi-Wei, Liu, Junhao, Hoang, Thiem, Ping Chen, Wen, Shimajiri, Yoshito, Liu, Tie, Chen, Zhiwei, Li, Hua-bai, Lyo, A-Ran, Hwang, Jihye, Johnstone, Doug, Rao, Ramprasad, Bich Ngoc, Nguyen, Ngoc Diep, Pham, Mairs, Steve, Parsons, Harriet, Tamura, Motohide, Tahani, Mehrnoosh, Vivien Chen, Huei-Ru, Nakamura, Fumitaka, Shinnaga, Hiroko, Tang, Ya-Wen, Cho, Jungyeon, Won Lee, Chang, Inutsuka, Shu-ichiro, Inoue, Tsuyoshi, Iwasaki, Kazunari, Qian, Lei, Xie, Jinjin, Li, Dalei, Liu, Hong-Li, Zhang, Chuan-Peng, Chen, Mike, Zhang, Guoyin, Zhu, Lei, Zhou, Jianjun, André, Philippe, Liu, Sheng-Yuan, Yuan, Jinghua, Lu, Xing, Peretto, Nicolas, Bourke, Tyler L., Byun, Do-Young, Dai, Sophia, Duan, Yan, Duan, Hao-Yuan, Eden, David, Matthews, Brenda, Fiege, Jason, Fissel, Laura M., Kim, Kee-Tae, Lee, Chin-Fei, Kim, Jongsoo, Pyo, Tae-Soo, Choi, Yunhee, Choi, Minho, Chrysostomou, Antonio, Jung Chung, Eun, Ngoc Tram, Le, Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko, Houde, Martin, Kawabata, Koji, Jeong, Il-Gyo, Kang, Ji-hyun, Kang, Sung-ju, Kang, Miju, Kataoka, Akimasa, Kemper, Francisca, Rawlings, Mark, Rawlings, Jonathan, Retter, Brendan, Richer, John, Rigby, Andrew, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Kim, Gwanjeong, Hee Kim, Kyoung, Kim, Mi-Ryang, Kirchschlager, Florian, Kirk, Jason, Kobayashi, Masato I. N., Konyves, Vera, Kusune, Takayoshi, Lacaille, Kevin, Law, Chi-Yan, Lee, Sang-Sung, Lee, Yong-Hee, Matsumura, Masafumi, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakanishi, Hiroyuki, Onaka, Takashi, Park, Geumsook, Tang, Xindi, Tomisaka, Kohji, Tsukamoto, Yusuke, Viti, Serena, Wang, Hongchi, Whitworth, Anthony, Yoo, Hyunju, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Yapeng, de Looze, Ilse, Dowell, C. Darren, Eyres, Stewart, Falle, Sam, Robitaille, Jean-François, and van Loo, Sven

Abstract

We have obtained sensitive dust continuum polarization observations at 850 μm in the B213 region of Taurus using POL-2 on SCUBA-2 at the James Clerk Maxwell Telescope as part of the B-fields in STar-forming Region Observations (BISTRO) survey. These observations allow us to probe magnetic field (B-field) at high spatial resolution (∼2000 au or ∼0.01 pc at 140 pc) in two protostellar cores (K04166 and K04169) and one prestellar core (Miz-8b) that lie within the B213 filament. Using the Davis–Chandrasekhar–Fermi method, we estimate the B-field strengths in K04166, K04169, and Miz-8b to be 38 ± 14, 44 ± 16, and 12 ± 5 μG, respectively. These cores show distinct mean B-field orientations. The B-field in K04166 is well ordered and aligned parallel to the orientations of the core minor axis, outflows, core rotation axis, and large-scale uniform B-field, in accordance with magnetically regulated star formation via ambipolar diffusion taking place in K04166. The B-field in K04169 is found to be ordered but oriented nearly perpendicular to the core minor axis and large-scale B-field and not well correlated with other axes. In contrast, Miz-8b exhibits a disordered B-field that shows no preferred alignment with the core minor axis or large-scale field. We found that only one core, K04166, retains a memory of the large-scale uniform B-field. The other two cores, K04169 and Miz-8b, are decoupled from the large-scale field. Such a complex B-field configuration could be caused by gas inflow onto the filament, even in the presence of a substantial magnetic flux.

Published
2021

115. Observations of Magnetic Fields Surrounding LkHα 101 Taken by the BISTRO Survey with JCMT-POL-2

Author

Ngoc, Nguyen Bich, Diep, Pham Ngoc, Parsons, Harriet, Pattle, Kate, Hoang, Thiem, Ward-Thompson, Derek, Tram, Le Ngoc, Hull, Charles L. H., Tahani, Mehrnoosh, Furuya, Ray, Bastien, Pierre, Qiu, Keping, Hasegawa, Tetsuo, Kwon, Woojin, Doi, Yasuo, Lai, Shih-Ping, Coudé, Simon, Berry, David, Ching, Tao-Chung, Hwang, Jihye, Soam, Archana, Wang, Jia-Wei, Arzoumanian, Doris, Bourke, Tyler L., Byun, Do-Young, Chen, Huei-Ru Vivien, Chen, Zhiwei, Chen, Wen Ping, Chen, Mike, Cho, Jungyeon, Choi, Yunhee, Choi, Minho, Chrysostomou, Antonio, Chung, Eun Jung, Dai, Sophia, Francesco, James Di, Duan, Yan, Duan, Hao-Yuan, Eden, David, Eswaraiah, Chakali, Fanciullo, Lapo, Fiege, Jason, Fissel, Laura M., Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko, Houde, Martin, Inoue, Tsuyoshi, Inutsuka, Shu-ichiro, Iwasaki, Kazunari, Jeong, Il-Gyo, Johnstone, Doug, Kang, Ji-hyun, Kang, Sung-ju, Kang, Miju, Kataoka, Akimasa, Kawabata, Koji, Kemper, Francisca, Kim, Kee-Tae, Kim, Jongsoo, Pyo, Tae-Soo, Qian, Lei, Rao, Ramprasad, Rawlings, Mark, Rawlings, Jonathan, Retter, Brendan, Richer, John, Rigby, Andrew, Sadavoy, Sarah, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Kim, Gwanjeong, Kim, Shinyoung, Kim, Kyoung Hee, Kim, Mi-Ryang, Kirchschlager, Florian, Kirk, Jason Matthew, Kobayashi, Masato I. N., Koch, Patrick M., Konyves, Vera, Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin, Law, Chi-Yan, Lee, Sang-Sung, Lee, Yong-Hee, Lee, Chin-Fei, Lee, Jeong-Eun, Lee, Hyeseung, Lee, Chang Won, Li, Di, Li, Hua-bai, Li, Dalei, Liu, Hong-Li, Liu, Junhao, Liu, Tie, Liu, Sheng-Yuan, Lu, Xing, Lyo, A-Ran, Mairs, Steve, Matsumura, Masafumi, Matthews, Brenda, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Ohashi, Nagayoshi, Onaka, Takashi, Park, Geumsook, Peretto, Nicolas, Shimajiri, Yoshito, Shinnaga, Hiroko, Tamura, Motohide, Tang, Ya-Wen, Tang, Xindi, Tomisaka, Kohji, Tsukamoto, Yusuke, Viti, Serena, Wang, Hongchi, Whitworth, Anthony, Xie, Jinjin, Yen, Hsi-Wei, Yoo, Hyunju, Yuan, Jinghua, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Yapeng, Zhang, Chuan-Peng, Zhang, Guoyin, Zhou, Jianjun, Zhu, Lei, Looze, Ilse de, André, Philippe, Dowell, C. Darren, Eyres, Stewart, Falle, Sam, Robitaille, Jean-François, van Loo, Sven, Ngoc, Nguyen Bich, Diep, Pham Ngoc, Parsons, Harriet, Pattle, Kate, Hoang, Thiem, Ward-Thompson, Derek, Tram, Le Ngoc, Hull, Charles L. H., Tahani, Mehrnoosh, Furuya, Ray, Bastien, Pierre, Qiu, Keping, Hasegawa, Tetsuo, Kwon, Woojin, Doi, Yasuo, Lai, Shih-Ping, Coudé, Simon, Berry, David, Ching, Tao-Chung, Hwang, Jihye, Soam, Archana, Wang, Jia-Wei, Arzoumanian, Doris, Bourke, Tyler L., Byun, Do-Young, Chen, Huei-Ru Vivien, Chen, Zhiwei, Chen, Wen Ping, Chen, Mike, Cho, Jungyeon, Choi, Yunhee, Choi, Minho, Chrysostomou, Antonio, Chung, Eun Jung, Dai, Sophia, Francesco, James Di, Duan, Yan, Duan, Hao-Yuan, Eden, David, Eswaraiah, Chakali, Fanciullo, Lapo, Fiege, Jason, Fissel, Laura M., Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko, Houde, Martin, Inoue, Tsuyoshi, Inutsuka, Shu-ichiro, Iwasaki, Kazunari, Jeong, Il-Gyo, Johnstone, Doug, Kang, Ji-hyun, Kang, Sung-ju, Kang, Miju, Kataoka, Akimasa, Kawabata, Koji, Kemper, Francisca, Kim, Kee-Tae, Kim, Jongsoo, Pyo, Tae-Soo, Qian, Lei, Rao, Ramprasad, Rawlings, Mark, Rawlings, Jonathan, Retter, Brendan, Richer, John, Rigby, Andrew, Sadavoy, Sarah, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Kim, Gwanjeong, Kim, Shinyoung, Kim, Kyoung Hee, Kim, Mi-Ryang, Kirchschlager, Florian, Kirk, Jason Matthew, Kobayashi, Masato I. N., Koch, Patrick M., Konyves, Vera, Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin, Law, Chi-Yan, Lee, Sang-Sung, Lee, Yong-Hee, Lee, Chin-Fei, Lee, Jeong-Eun, Lee, Hyeseung, Lee, Chang Won, Li, Di, Li, Hua-bai, Li, Dalei, Liu, Hong-Li, Liu, Junhao, Liu, Tie, Liu, Sheng-Yuan, Lu, Xing, Lyo, A-Ran, Mairs, Steve, Matsumura, Masafumi, Matthews, Brenda, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Ohashi, Nagayoshi, Onaka, Takashi, Park, Geumsook, Peretto, Nicolas, Shimajiri, Yoshito, Shinnaga, Hiroko, Tamura, Motohide, Tang, Ya-Wen, Tang, Xindi, Tomisaka, Kohji, Tsukamoto, Yusuke, Viti, Serena, Wang, Hongchi, Whitworth, Anthony, Xie, Jinjin, Yen, Hsi-Wei, Yoo, Hyunju, Yuan, Jinghua, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Yapeng, Zhang, Chuan-Peng, Zhang, Guoyin, Zhou, Jianjun, Zhu, Lei, Looze, Ilse de, André, Philippe, Dowell, C. Darren, Eyres, Stewart, Falle, Sam, Robitaille, Jean-François, and van Loo, Sven

Abstract

We report the first high spatial resolution measurement of magnetic fields surrounding LkHα 101, part of the Auriga-California molecular cloud. The observations were taken with the POL-2 polarimeter on the James Clerk Maxwell Telescope within the framework of the B-fields In Star-forming Region Observations (BISTRO) survey. Observed polarization of thermal dust emission at 850 μm is found to be mostly associated with the redshifted gas component of the cloud. The magnetic field displays a relatively complex morphology. Two variants of the Davis-Chandrasekhar-Fermi method, unsharp masking and structure function, are used to calculate the strength of magnetic fields in the plane of the sky, yielding a similar result of BPOS ∼ 115 μG. The mass-to-magnetic-flux ratio in critical value units, λ ∼ 0.3, is the smallest among the values obtained for other regions surveyed by POL-2. This implies that the LkHα 101 region is subcritical, and the magnetic field is strong enough to prevent gravitational collapse. The inferred δB/B0 ∼ 0.3 implies that the large-scale component of the magnetic field dominates the turbulent one. The variation of the polarization fraction with total emission intensity can be fitted by a power law with an index of α = 0.82 ± 0.03, which lies in the range previously reported for molecular clouds. We find that the polarization fraction decreases rapidly with proximity to the only early B star (LkHα 101) in the region. Magnetic field tangling and the joint effect of grain alignment and rotational disruption by radiative torques can potentially explain such a decreasing trend.

Published
2021

116. The census of dense cores in the Serpens region from the Herschel Gould Belt Survey

Author

Fiorellino, E, Elia, D, André, Ph, Men’shchikov, A, Pezzuto, S, Schisano, E, Konyves, Vera, Arzoumanian, D, Benedettini, M, Ward-Thompson, Derek, Bracco, A, Francesco, J Di, Bontemps, S, Kirk, Jason Matthew, Motte, F, Molinari, S, Fiorellino, E, Elia, D, André, Ph, Men’shchikov, A, Pezzuto, S, Schisano, E, Konyves, Vera, Arzoumanian, D, Benedettini, M, Ward-Thompson, Derek, Bracco, A, Francesco, J Di, Bontemps, S, Kirk, Jason Matthew, Motte, F, and Molinari, S

Abstract

The Herschel Gould Belt survey mapped the nearby (d < 500 pc) star-forming regions to understand better how the prestellar phase influences the star formation process. Here we report a complete census of dense cores in a ∼15 deg2 area of the Serpens star-forming region located between d ∼ 420 pc and 484 pc. The PACS and SPIRE cameras imaged this cloud from 70 μm to 500 μm. With the multi-wavelength source extraction algorithm getsources , we extract 833 sources, of which 709 are starless cores and 124 are candidate proto-stellar cores. We obtain temperatures and masses for all the sample, classifying the starless cores in 604 prestellar cores and 105 unbound cores. Our census of sources is $80\%$ complete for M > 0.8 M⊙ overall. We produce the core mass function (CMF) and compare it with the initial mass function (IMF). The prestellar CMF is consistent with log-normal trend up to ∼2 M⊙, after which it follows a power-law with slope of −2.05 ± 0.34. The tail of its CMF is steeper but still compatible with the IMF for the region we studied in this work. We also extract the filaments network of the Serpens region, finding that $81\%$ of prestellar cores lie on filamentary structures. The spatial association between cores and filamentary structure supports the paradigm, suggested by other Herschel observations, that prestellar cores mostly form on filaments. Serpens is confirmed to be a young, low-mass and active star-forming region.

Published
2021

117. The JCMT BISTRO Survey: An 850/450 μ m Polarization Study of NGC 2071IR in Orion B

Author

Lyo, A-Ran, Kim, Jongsoo, Sadavoy, Sarah, Johnstone, Doug, Berry, David, Pattle, Kate, Kwon, Woojin, Bastien, Pierre, Onaka, Takashi, Di Francesco, James, Kang, Ji-Hyun, Furuya, Ray, Hull, Charles L. H., Tamura, Motohide, Koch, Patrick M., Ward-Thompson, Derek, Hasegawa, Tetsuo, Hoang, Thiem, Arzoumanian, Doris, Won Lee, Chang, Lee, Chin-Fei, Byun, Do-Young, Kirchschlager, Florian, Doi, Yasuo, Kim, Kee-Tae, Hwang, Jihye, Diep, Pham Ngoc, Fanciullo, Lapo, Lee, Sang-Sung, Park, Geumsook, Yoo, Hyunju, Chung, Eun Jung, Whitworth, Anthony, Mairs, Steve, Soam, Archana, Liu, Tie, Tang, Xindi, Coudé, Simon, André, Philippe, Bourke, Tyler L., Vivien Chen, Huei-Ru, Chen, Zhiwei, Ping Chen, Wen, Chen, Mike, Ching, Tao-Chung, Cho, Jungyeon, Choi, Minho, Choi, Yunhee, Chrysostomou, Antonio, Dai, Sophia, Dowell, C. Darren, Duan, Hao-Yuan, Duan, Yan, Eden, David, Eswaraiah, Chakali, Eyres, Stewart, Fiege, Jason, Fissel, Laura M., Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jannifer, Hayashi, Saeko, Houde, Martin, Inoue, Tsuyoshi, Inutsuka, Shu-ichiro, Iwasaki, Kazunari, Jeong, Il-Gyo, Kang, Miju, Kataoka, Akimasa, Kawabata, Koji, Kemper, Francisca, Kim, Gwanjeong, Kim, Mi-Ryang, Kim, Shinyoung, Kim, Kyoung Hee, Kirk, Jason, Kobayashi, Masato I. N., Könyves, Vera, Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin, Lai, Shih-Ping, Law, Chi-Yan, Lee, Jeong-Eun, Lee, Yong-Hee, Lee, Hyeseung, Li, Dalei, Li, Di, Li, Hua-Bai, Liu, Hong-Li, Liu, Junhao, Liu, Sheng-Yuan, Lu, Xing, Matsumura, Masafumi, Matthews, Brenda, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Bich Ngoc, Nguyen, Ohashi, Nagayoshi, Parsons, Harriet, Peretto, Nicolas, Priestley, Felix, Pyo, Tae-soo, Qian, Lei, Qiu, Keping, Rao, Ramprasad, Rawlings, Jonathan, Rawlings, Mark G., Retter, Brendan, Richer, John, Rigby, Andrew, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Shimajiri, Yoshito, Shinnaga, Hiroko, Tahani, Mehrnoosh, Tang, Ya-Wen, Tomisaka, Kohji, Tram, Le Ngoc, Tsukamoto, Yusuke, Viti, Serena, Wang, Jia-Wei, Wang, Hongchi, Xie, Jinjin, Yen, Hsi-Wei, Yuan, Jinghua, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Guoyin, Zhang, Chuan-Peng, Zhang, Yapeng, Zhou, Jianjun, Zhu, Lei, de Looze, Ilse, Falle, Sam, Robitaille, Jean-François, van Loo, Sven, Lyo, A-Ran, Kim, Jongsoo, Sadavoy, Sarah, Johnstone, Doug, Berry, David, Pattle, Kate, Kwon, Woojin, Bastien, Pierre, Onaka, Takashi, Di Francesco, James, Kang, Ji-Hyun, Furuya, Ray, Hull, Charles L. H., Tamura, Motohide, Koch, Patrick M., Ward-Thompson, Derek, Hasegawa, Tetsuo, Hoang, Thiem, Arzoumanian, Doris, Won Lee, Chang, Lee, Chin-Fei, Byun, Do-Young, Kirchschlager, Florian, Doi, Yasuo, Kim, Kee-Tae, Hwang, Jihye, Diep, Pham Ngoc, Fanciullo, Lapo, Lee, Sang-Sung, Park, Geumsook, Yoo, Hyunju, Chung, Eun Jung, Whitworth, Anthony, Mairs, Steve, Soam, Archana, Liu, Tie, Tang, Xindi, Coudé, Simon, André, Philippe, Bourke, Tyler L., Vivien Chen, Huei-Ru, Chen, Zhiwei, Ping Chen, Wen, Chen, Mike, Ching, Tao-Chung, Cho, Jungyeon, Choi, Minho, Choi, Yunhee, Chrysostomou, Antonio, Dai, Sophia, Dowell, C. Darren, Duan, Hao-Yuan, Duan, Yan, Eden, David, Eswaraiah, Chakali, Eyres, Stewart, Fiege, Jason, Fissel, Laura M., Franzmann, Erica, Friberg, Per, Friesen, Rachel, Fuller, Gary, Gledhill, Tim, Graves, Sarah, Greaves, Jane, Griffin, Matt, Gu, Qilao, Han, Ilseung, Hatchell, Jannifer, Hayashi, Saeko, Houde, Martin, Inoue, Tsuyoshi, Inutsuka, Shu-ichiro, Iwasaki, Kazunari, Jeong, Il-Gyo, Kang, Miju, Kataoka, Akimasa, Kawabata, Koji, Kemper, Francisca, Kim, Gwanjeong, Kim, Mi-Ryang, Kim, Shinyoung, Kim, Kyoung Hee, Kirk, Jason, Kobayashi, Masato I. N., Könyves, Vera, Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin, Lai, Shih-Ping, Law, Chi-Yan, Lee, Jeong-Eun, Lee, Yong-Hee, Lee, Hyeseung, Li, Dalei, Li, Di, Li, Hua-Bai, Liu, Hong-Li, Liu, Junhao, Liu, Sheng-Yuan, Lu, Xing, Matsumura, Masafumi, Matthews, Brenda, Moriarty-Schieven, Gerald, Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Bich Ngoc, Nguyen, Ohashi, Nagayoshi, Parsons, Harriet, Peretto, Nicolas, Priestley, Felix, Pyo, Tae-soo, Qian, Lei, Qiu, Keping, Rao, Ramprasad, Rawlings, Jonathan, Rawlings, Mark G., Retter, Brendan, Richer, John, Rigby, Andrew, Saito, Hiro, Savini, Giorgio, Scaife, Anna, Seta, Masumichi, Shimajiri, Yoshito, Shinnaga, Hiroko, Tahani, Mehrnoosh, Tang, Ya-Wen, Tomisaka, Kohji, Tram, Le Ngoc, Tsukamoto, Yusuke, Viti, Serena, Wang, Jia-Wei, Wang, Hongchi, Xie, Jinjin, Yen, Hsi-Wei, Yuan, Jinghua, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Guoyin, Zhang, Chuan-Peng, Zhang, Yapeng, Zhou, Jianjun, Zhu, Lei, de Looze, Ilse, Falle, Sam, Robitaille, Jean-François, and van Loo, Sven

Abstract

We present the results of simultaneous 450 μm and 850 μm polarization observations toward the massive star-forming region NGC 2071IR, a target of the BISTRO (B-fields in STar-forming Region Observations) Survey, using the POL-2 polarimeter and SCUBA-2 camera mounted on the James Clerk Maxwell Telescope. We find a pinched magnetic field morphology in the central dense core region, which could be due to a rotating toroidal disklike structure and a bipolar outflow originating from the central young stellar object IRS 3. Using the modified Davis–Chandrasekhar–Fermi method, we obtain a plane-of-sky magnetic field strength of 563 ± 421 μG in the central ∼0.12 pc region from 850 μm polarization data. The corresponding magnetic energy density of 2.04 × 10−8 erg cm−3 is comparable to the turbulent and gravitational energy densities in the region. We find that the magnetic field direction is very well aligned with the whole of the IRS 3 bipolar outflow structure. We find that the median value of polarization fractions is 3.0% at 450 μm in the central 3′ region, which is larger than the median value of 1.2% at 850 μm. The trend could be due to the better alignment of warmer dust in the strong radiation environment. We also find that polarization fractions decrease with intensity at both wavelengths, with slopes, determined by fitting a Rician noise model of 0.59 ± 0.03 at 450 μm and 0.36 ± 0.04 at 850 μm, respectively. We think that the shallow slope at 850 μm is due to grain alignment at the center being assisted by strong radiation from the central young stellar objects.

Published
2021

118. Reduced NCOR2 expression accelerates androgen deprivation therapy failure in prostate cancer

Author

Long, Mark D., Jacobi, Justine J., Singh, Prashant K., Llimos, Gerard, Wani, Sajad A., Rowsam, Aryn M., Rosario, Spencer R., Hoogstraat, Marlous, Linder, Simon, Kirk, Jason, Affronti, Hayley C., Bergman, Andries, Zwart, Wilbert, Campbell, Moray J., Smiraglia, Dominic J., Long, Mark D., Jacobi, Justine J., Singh, Prashant K., Llimos, Gerard, Wani, Sajad A., Rowsam, Aryn M., Rosario, Spencer R., Hoogstraat, Marlous, Linder, Simon, Kirk, Jason, Affronti, Hayley C., Bergman, Andries, Zwart, Wilbert, Campbell, Moray J., and Smiraglia, Dominic J.

Abstract

This study addresses the roles of nuclear receptor corepressor 2 (NCOR2) in prostate cancer (PC) progression in response to androgen deprivation therapy (ADT). Reduced NCOR2 expression significantly associates with shorter disease-free survival in patients with PC receiving adjuvant ADT. Utilizing the CWR22 xenograft model, we demonstrate that stably reduced NCOR2 expression accelerates disease recurrence following ADT, associates with gene expression patterns that include neuroendocrine features, and induces DNA hypermethylation. Stably reduced NCOR2 expression in isogenic LNCaP (androgen-sensitive) and LNCaP-C4-2 (androgen-independent) cells revealed that NCOR2 reduction phenocopies the impact of androgen treatment and induces global DNA hypermethylation patterns. NCOR2 genomic binding is greatest in LNCaP-C4-2 cells and most clearly associates with forkhead box (FOX) transcription factor FOXA1 binding. NCOR2 binding significantly associates with transcriptional regulation most when in active enhancer regions. These studies reveal robust roles for NCOR2 in regulating the PC transcriptome and epigenome and underscore recent mutational studies linking NCOR2 loss of function to PC disease progression.

Published
2021

119. Erratum: 'The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333' (2020, ApJ, 899, 28)

Author

Doi, Yasuo, Hasegawa, Tetsuo, Furuya, Ray S., Coude, Simon, Hull, Charles L.H., Arzoumanian, Doris, Ward-Thompson, Derek, Kirk, Jason Matthew, Konyves, Vera, Eyres, Stewart Paul shore, Et, Al, Doi, Yasuo, Hasegawa, Tetsuo, Furuya, Ray S., Coude, Simon, Hull, Charles L.H., Arzoumanian, Doris, Ward-Thompson, Derek, Kirk, Jason Matthew, Konyves, Vera, Eyres, Stewart Paul shore, and Et, Al

Published
2021

120. Gas phase Elemental abundances in Molecular cloudS (GEMS). IV. Observational results and statistical trends

Author

Rodríguez-Baras, M., Fuente, A., Riviére-Marichalar, P., Navarro-Almaida, D., Caselli, P., Gerin, M., Kramer, C., Kirk, Jason Matthew, Ward-Thompson, Derek, Rodríguez-Baras, M., Fuente, A., Riviére-Marichalar, P., Navarro-Almaida, D., Caselli, P., Gerin, M., Kramer, C., Kirk, Jason Matthew, and Ward-Thompson, Derek

Abstract

Gas phase Elemental abundances in Molecular CloudS (GEMS) is an IRAM 30m Large Program designed to estimate the S, C, N, and O depletions and gas ionization degree, X(e-), in a set of star-forming filaments of Taurus, Perseus and Orion. Our immediate goal is to build up a complete database of molecular abundances that can serve as an observational basis for estimating X(e-) and the C, O, N, and S depletions through chemical modeling. We observed and derived the abundances of 14 species (13CO, C18O, HCO+, H13CO+, HC18O+, HCN, H13CN, HNC, HCS+, CS, SO, 34SO, H2S, and OCS) in 244 positions, covering the AV 3 to 100 mag, n(H2) a few 103 to 106 cm−3, and Tk 10 to 30 K ranges in these clouds, avoiding protostars, HII regions, and outflows. A statistical analysis is carried out to identify general trends between different species and with physical parameters. Relations between molecules reveal strong linear correlations which define three different families: (1) 13CO and C18O; (2) H13CO+, HC18O+, H13CN, and HNC; and (3) the S-bearing molecules. The abundances of the CO isotopologs increase with the gas kinetic temperature until TK 15 K. For higher temperatures, the abundance remains constant with a scatter of a factor of 3. The abundances of H13CO+, HC18O+, H13CN, and HNC are well correlated with each other, and all of them decrease with molecular hydrogen density, following the law n(H2)−0.8±0.2. The abundances of S-bearing species also decrease with n(H2) at a rate of (S-bearing/H)gas n(H2)−0.6±0.1. The abundances of molecules belonging to groups 2 and 3 do not present any clear trend with gas temperature. At scales of molecular clouds, the C18O abundance is the quantity that better correlates with the cloud mass. We discuss the utility of the 13CO/C18O, HCO+/H13CO+, and H13CO+/H13CN abundance ratios as chemical diagnostics of star formation in external galaxies.

Published
2021

123. The JCMT BISTRO-2 Survey: The Magnetic Field in the Center of the Rosette Molecular Cloud

Author

Könyves, Vera, primary, Ward-Thompson, Derek, additional, Pattle, Kate, additional, Di Francesco, James, additional, Arzoumanian, Doris, additional, Chen, Zhiwei, additional, Diep, Pham Ngoc, additional, Eswaraiah, Chakali, additional, Fanciullo, Lapo, additional, Furuya, Ray S., additional, Hoang, Thiem, additional, Hull, Charles L. H., additional, Hwang, Jihye, additional, Johnstone, Doug, additional, Kang, Ji-hyun, additional, Karoly, Janik, additional, Kirchschlager, Florian, additional, Kirk, Jason M., additional, Koch, Patrick M., additional, Kwon, Jungmi, additional, Lee, Chang Won, additional, Onaka, Takashi, additional, Robitaille, Jean-François, additional, Soam, Archana, additional, Tahani, Mehrnoosh, additional, Tang, Xindi, additional, Tamura, Motohide, additional, Berry, David, additional, Bastien, Pierre, additional, Ching, Tao-Chung, additional, Coudé, Simon, additional, Kwon, Woojin, additional, Wang, Jia-Wei, additional, Hasegawa, Tetsuo, additional, Lai, Shih-Ping, additional, and Qiu, Keping, additional

Published
2021
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124. The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

Author

Eswaraiah, Chakali, primary, Li, Di, additional, Furuya, Ray S., additional, Hasegawa, Tetsuo, additional, Ward-Thompson, Derek, additional, Qiu, Keping, additional, Ohashi, Nagayoshi, additional, Pattle, Kate, additional, Sadavoy, Sarah, additional, Hull, Charles L. H., additional, Berry, David, additional, Doi, Yasuo, additional, Ching, Tao-Chung, additional, Lai, Shih-Ping, additional, Wang, Jia-Wei, additional, Koch, Patrick M., additional, Kwon, Jungmi, additional, Kwon, Woojin, additional, Bastien, Pierre, additional, Arzoumanian, Doris, additional, Coudé, Simon, additional, Soam, Archana, additional, Fanciullo, Lapo, additional, Yen, Hsi-Wei, additional, Liu, Junhao, additional, Hoang, Thiem, additional, Ping Chen, Wen, additional, Shimajiri, Yoshito, additional, Liu, Tie, additional, Chen, Zhiwei, additional, Li, Hua-bai, additional, Lyo, A-Ran, additional, Hwang, Jihye, additional, Johnstone, Doug, additional, Rao, Ramprasad, additional, Bich Ngoc, Nguyen, additional, Ngoc Diep, Pham, additional, Mairs, Steve, additional, Parsons, Harriet, additional, Tamura, Motohide, additional, Tahani, Mehrnoosh, additional, Vivien Chen, Huei-Ru, additional, Nakamura, Fumitaka, additional, Shinnaga, Hiroko, additional, Tang, Ya-Wen, additional, Cho, Jungyeon, additional, Won Lee, Chang, additional, Inutsuka, Shu-ichiro, additional, Inoue, Tsuyoshi, additional, Iwasaki, Kazunari, additional, Qian, Lei, additional, Xie, Jinjin, additional, Li, Dalei, additional, Liu, Hong-Li, additional, Zhang, Chuan-Peng, additional, Chen, Mike, additional, Zhang, Guoyin, additional, Zhu, Lei, additional, Zhou, Jianjun, additional, André, Philippe, additional, Liu, Sheng-Yuan, additional, Yuan, Jinghua, additional, Lu, Xing, additional, Peretto, Nicolas, additional, Bourke, Tyler L., additional, Byun, Do-Young, additional, Dai, Sophia, additional, Duan, Yan, additional, Duan, Hao-Yuan, additional, Eden, David, additional, Matthews, Brenda, additional, Fiege, Jason, additional, Fissel, Laura M., additional, Kim, Kee-Tae, additional, Lee, Chin-Fei, additional, Kim, Jongsoo, additional, Pyo, Tae-Soo, additional, Choi, Yunhee, additional, Choi, Minho, additional, Chrysostomou, Antonio, additional, Jung Chung, Eun, additional, Ngoc Tram, Le, additional, Franzmann, Erica, additional, Friberg, Per, additional, Friesen, Rachel, additional, Fuller, Gary, additional, Gledhill, Tim, additional, Graves, Sarah, additional, Greaves, Jane, additional, Griffin, Matt, additional, Gu, Qilao, additional, Han, Ilseung, additional, Hatchell, Jennifer, additional, Hayashi, Saeko, additional, Houde, Martin, additional, Kawabata, Koji, additional, Jeong, Il-Gyo, additional, Kang, Ji-hyun, additional, Kang, Sung-ju, additional, Kang, Miju, additional, Kataoka, Akimasa, additional, Kemper, Francisca, additional, Rawlings, Mark, additional, Rawlings, Jonathan, additional, Retter, Brendan, additional, Richer, John, additional, Rigby, Andrew, additional, Saito, Hiro, additional, Savini, Giorgio, additional, Scaife, Anna, additional, Seta, Masumichi, additional, Kim, Gwanjeong, additional, Hee Kim, Kyoung, additional, Kim, Mi-Ryang, additional, Kirchschlager, Florian, additional, Kirk, Jason, additional, Kobayashi, Masato I. N., additional, Konyves, Vera, additional, Kusune, Takayoshi, additional, Lacaille, Kevin, additional, Law, Chi-Yan, additional, Lee, Sang-Sung, additional, Lee, Yong-Hee, additional, Matsumura, Masafumi, additional, Moriarty-Schieven, Gerald, additional, Nagata, Tetsuya, additional, Nakanishi, Hiroyuki, additional, Onaka, Takashi, additional, Park, Geumsook, additional, Tang, Xindi, additional, Tomisaka, Kohji, additional, Tsukamoto, Yusuke, additional, Viti, Serena, additional, Wang, Hongchi, additional, Whitworth, Anthony, additional, Yoo, Hyunju, additional, Yun, Hyeong-Sik, additional, Zenko, Tetsuya, additional, Zhang, Yapeng, additional, de Looze, Ilse, additional, Dowell, C. Darren, additional, Eyres, Stewart, additional, Falle, Sam, additional, Robitaille, Jean-François, additional, and van Loo, Sven, additional

Published
2021
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125. Erratum: “The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333” (2020, ApJ, 899, 28)

Author

Doi, Yasuo, primary, Hasegawa, Tetsuo, additional, Furuya, Ray S., additional, Coudé, Simon, additional, Hull, Charles L. H., additional, Arzoumanian, Doris, additional, Bastien, Pierre, additional, Chen, Michael Chun-Yuan, additional, Di Francesco, James, additional, Friesen, Rachel, additional, Houde, Martin, additional, Inutsuka, Shu-ichiro, additional, Mairs, Steve, additional, Matsumura, Masafumi, additional, Onaka, Takashi, additional, Sadavoy, Sarah, additional, Shimajiri, Yoshito, additional, Tahani, Mehrnoosh, additional, Tomisaka, Kohji, additional, Eswaraiah, Chakali, additional, Koch, Patrick M., additional, Pattle, Kate, additional, Lee, Chang Won, additional, Tamura, Motohide, additional, Berry, David, additional, Ching, Tao-Chung, additional, Hwang, Jihye, additional, Kwon, Woojin, additional, Soam, Archana, additional, Wang, Jia-Wei, additional, Lai, Shih-Ping, additional, Qiu, Keping, additional, Ward-Thompson, Derek, additional, Byun, Do-Young, additional, Chen, Huei-Ru Vivien, additional, Chen, Wen Ping, additional, Chen, Zhiwei, additional, Cho, Jungyeon, additional, Choi, Minho, additional, Choi, Yunhee, additional, Chrysostomou, Antonio, additional, Chung, Eun Jung, additional, Diep, Pham Ngoc, additional, Duan, Hao-Yuan, additional, Fanciullo, Lapo, additional, Fiege, Jason, additional, Franzmann, Erica, additional, Friberg, Per, additional, Fuller, Gary, additional, Gledhill, Tim, additional, Graves, Sarah F., additional, Greaves, Jane S., additional, Griffin, Matt J., additional, Gu, Qilao, additional, Han, Ilseung, additional, Hatchell, Jennifer, additional, Hayashi, Saeko S., additional, Hoang, Thiem, additional, Inoue, Tsuyoshi, additional, Iwasaki, Kazunari, additional, Jeong, Il-Gyo, additional, Johnstone, Doug, additional, Kanamori, Yoshihiro, additional, Kang, Ji-hyun, additional, Kang, Miju, additional, Kang, Sung-ju, additional, Kataoka, Akimasa, additional, Kawabata, Koji S., additional, Kemper, Francisca, additional, Kim, Gwanjeong, additional, Kim, Jongsoo, additional, Kim, Kee-Tae, additional, Kim, Kyoung Hee, additional, Kim, Mi-Ryang, additional, Kim, Shinyoung, additional, Kirk, Jason M., additional, Kobayashi, Masato I. N., additional, Konyves, Vera, additional, Kusune, Takayoshi, additional, Kwon, Jungmi, additional, Lacaille, Kevin, additional, Law, Chi-Yan, additional, Lee, Chin-Fei, additional, Lee, Hyeseung, additional, Lee, Jeong-Eun, additional, Lee, Sang-Sung, additional, Lee, Yong-Hee, additional, Li, Dalei, additional, Li, Di, additional, Li, Hua-bai, additional, Liu, Hong-Li, additional, Liu, Junhao, additional, Liu, Sheng-Yuan, additional, Liu, Tie, additional, Looze, Ilse de, additional, Lyo, A-Ran, additional, Matthews, Brenda C., additional, Moriarty-Schieven, Gerald H., additional, Nagata, Tetsuya, additional, Nakamura, Fumitaka, additional, Nakanishi, Hiroyuki, additional, Ohashi, Nagayoshi, additional, Park, Geumsook, additional, Parsons, Harriet, additional, Peretto, Nicolas, additional, Pyo, Tae-Soo, additional, Qian, Lei, additional, Rao, Ramprasad, additional, Rawlings, Mark G., additional, Retter, Brendan, additional, Richer, John, additional, Rigby, Andrew, additional, Saito, Hiro, additional, Savini, Giorgio, additional, Scaife, Anna M. M., additional, Seta, Masumichi, additional, Shinnaga, Hiroko, additional, Tang, Ya-Wen, additional, Tsukamoto, Yusuke, additional, Viti, Serena, additional, Wang, Hongchi, additional, Whitworth, Anthony P., additional, Yen, Hsi-Wei, additional, Yoo, Hyunju, additional, Yuan, Jinghua, additional, Yun, Hyeong-Sik, additional, Zenko, Tetsuya, additional, Zhang, Chuan-Peng, additional, Zhang, Guoyin, additional, Zhang, Yapeng, additional, Zhou, Jianjun, additional, Zhu, Lei, additional, André, Philippe, additional, Dowell, C. Darren, additional, Eyres, Stewart P. S., additional, Falle, Sam, additional, van Loo, Sven, additional, and Robitaille, Jean-François, additional

Published
2021
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127. Gas phase Elemental abundances in Molecular cloudS (GEMS) II. On the quest for the sulphur reservoir in molecular clouds: the H2S case

Author

Navarro-Almaida, D, Le Gal, R, Fuente, A, Rivière-Marichalar, P, Wakelam, V, Cazaux, S, Caselli, P, Laas, Jacob C, Alonso-Albi, T, Loison, J C, Gerin, M, Kramer, C, Roueff, E, Bachiller, R, Commerçon, B, Friesen, R, García-Burillo, S, Goicoechea, J R, Giuliano, B M, Jiménez-Serra, I, Kirk, Jason Matthew, Lattanzi, V, Malinen, J, Marcelino, N, Martín-Domènech, R, Muñoz Caro, G M, Pineda, J, Tercero, B, Treviño-Morales, S P, Roncero, O, Hacar, A, Tafalla, M, Ward-Thompson, Derek, Navarro-Almaida, D, Le Gal, R, Fuente, A, Rivière-Marichalar, P, Wakelam, V, Cazaux, S, Caselli, P, Laas, Jacob C, Alonso-Albi, T, Loison, J C, Gerin, M, Kramer, C, Roueff, E, Bachiller, R, Commerçon, B, Friesen, R, García-Burillo, S, Goicoechea, J R, Giuliano, B M, Jiménez-Serra, I, Kirk, Jason Matthew, Lattanzi, V, Malinen, J, Marcelino, N, Martín-Domènech, R, Muñoz Caro, G M, Pineda, J, Tercero, B, Treviño-Morales, S P, Roncero, O, Hacar, A, Tafalla, M, and Ward-Thompson, Derek

Abstract

Sulphur is one of the most abundant elements in the Universe. Surprisingly, sulphuretted molecules are not as abundant as expected in the interstellar medium and the identity of the main sulphur reservoir is still an open question. Our goal is to investigate the H S chemistry in dark clouds, as this stable molecule is a potential sulphur reservoir. Using millimeter observations of CS, SO, H S, and their isotopologues, we determine the physical conditions and H S abundances along the cores TMC 1-C, TMC 1-CP, and Barnard 1b. The gas-grain model Nautilus is used to model the sulphur chemistry and explore the impact of photo-desorption and chemical desorption on the H S abundance. Our modeling shows that chemical desorption is the main source of gas-phase H S in dark cores. The measured H S abundance can only be fitted if we assume that the chemical desorption rate decreases by more than a factor of 10 when > 2 × 10 . This change in the desorption rate is consistent with the formation of thick H O and CO ice mantles on grain surfaces. The observed SO and H S abundances are in good agreement with our predictions adopting an undepleted value of the sulphur abundance. However, the CS abundance is overestimated by a factor of 5 - 10. Along the three cores, atomic S is predicted to be the main sulphur reservoir. The gaseous H S abundance is well reproduced, assuming undepleted sulphur abundance and chemical desorption as the main source of H S. The behavior of the observed H S abundance suggests a changing desorption efficiency, which would probe the snowline in these cold cores. Our model, however, highly overestimates the observed gas-phase CS abundance. Given the uncertainty in the sulphur chemistry, we can only conclude that our data are consistent with a cosmic elemental S abundance with an uncertainty of a factor of 10.

Published
2020

128. The Herschel view of the dense core population in the Ophiuchus molecular cloud

Author

Ladjelate, B., Andre, Ph., Konyves, V., Ward-Thompson, Derek, Men'shchikov, A., Bracco, A., Palmeirim, P., Roy, A., Shimajiri, Y., Kirk, Jason Matthew, Et, Al, Ladjelate, B., Andre, Ph., Konyves, V., Ward-Thompson, Derek, Men'shchikov, A., Bracco, A., Palmeirim, P., Roy, A., Shimajiri, Y., Kirk, Jason Matthew, and Et, Al

Published
2020

130. Observations of Magnetic Fields Surrounding LkHα 101 Taken by the BISTRO Survey with JCMT-POL-2

Author

Ngoc, Nguyen Bich, primary, Diep, Pham Ngoc, additional, Parsons, Harriet, additional, Pattle, Kate, additional, Hoang, Thiem, additional, Ward-Thompson, Derek, additional, Tram, Le Ngoc, additional, Hull, Charles L. H., additional, Tahani, Mehrnoosh, additional, Furuya, Ray, additional, Bastien, Pierre, additional, Qiu, Keping, additional, Hasegawa, Tetsuo, additional, Kwon, Woojin, additional, Doi, Yasuo, additional, Lai, Shih-Ping, additional, Coudé, Simon, additional, Berry, David, additional, Ching, Tao-Chung, additional, Hwang, Jihye, additional, Soam, Archana, additional, Wang, Jia-Wei, additional, Arzoumanian, Doris, additional, Bourke, Tyler L., additional, Byun, Do-Young, additional, Chen, Huei-Ru Vivien, additional, Chen, Zhiwei, additional, Chen, Wen Ping, additional, Chen, Mike, additional, Cho, Jungyeon, additional, Choi, Yunhee, additional, Choi, Minho, additional, Chrysostomou, Antonio, additional, Chung, Eun Jung, additional, Dai, Sophia, additional, Francesco, James Di, additional, Duan, Yan, additional, Duan, Hao-Yuan, additional, Eden, David, additional, Eswaraiah, Chakali, additional, Fanciullo, Lapo, additional, Fiege, Jason, additional, Fissel, Laura M., additional, Franzmann, Erica, additional, Friberg, Per, additional, Friesen, Rachel, additional, Fuller, Gary, additional, Gledhill, Tim, additional, Graves, Sarah, additional, Greaves, Jane, additional, Griffin, Matt, additional, Gu, Qilao, additional, Han, Ilseung, additional, Hatchell, Jennifer, additional, Hayashi, Saeko, additional, Houde, Martin, additional, Inoue, Tsuyoshi, additional, Inutsuka, Shu-ichiro, additional, Iwasaki, Kazunari, additional, Jeong, Il-Gyo, additional, Johnstone, Doug, additional, Kang, Ji-hyun, additional, Kang, Sung-ju, additional, Kang, Miju, additional, Kataoka, Akimasa, additional, Kawabata, Koji, additional, Kemper, Francisca, additional, Kim, Kee-Tae, additional, Kim, Jongsoo, additional, Pyo, Tae-Soo, additional, Qian, Lei, additional, Rao, Ramprasad, additional, Rawlings, Mark, additional, Rawlings, Jonathan, additional, Retter, Brendan, additional, Richer, John, additional, Rigby, Andrew, additional, Sadavoy, Sarah, additional, Saito, Hiro, additional, Savini, Giorgio, additional, Scaife, Anna, additional, Seta, Masumichi, additional, Kim, Gwanjeong, additional, Kim, Shinyoung, additional, Kim, Kyoung Hee, additional, Kim, Mi-Ryang, additional, Kirchschlager, Florian, additional, Kirk, Jason, additional, Kobayashi, Masato I. N., additional, Koch, Patrick M., additional, Konyves, Vera, additional, Kusune, Takayoshi, additional, Kwon, Jungmi, additional, Lacaille, Kevin, additional, Law, Chi-Yan, additional, Lee, Sang-Sung, additional, Lee, Yong-Hee, additional, Lee, Chin-Fei, additional, Lee, Jeong-Eun, additional, Lee, Hyeseung, additional, Lee, Chang Won, additional, Li, Di, additional, Li, Hua-bai, additional, Li, Dalei, additional, Liu, Hong-Li, additional, Liu, Junhao, additional, Liu, Tie, additional, Liu, Sheng-Yuan, additional, Lu, Xing, additional, Lyo, A-Ran, additional, Mairs, Steve, additional, Matsumura, Masafumi, additional, Matthews, Brenda, additional, Moriarty-Schieven, Gerald, additional, Nagata, Tetsuya, additional, Nakamura, Fumitaka, additional, Nakanishi, Hiroyuki, additional, Ohashi, Nagayoshi, additional, Onaka, Takashi, additional, Park, Geumsook, additional, Peretto, Nicolas, additional, Shimajiri, Yoshito, additional, Shinnaga, Hiroko, additional, Tamura, Motohide, additional, Tang, Ya-Wen, additional, Tang, Xindi, additional, Tomisaka, Kohji, additional, Tsukamoto, Yusuke, additional, Viti, Serena, additional, Wang, Hongchi, additional, Whitworth, Anthony, additional, Xie, Jinjin, additional, Yen, Hsi-Wei, additional, Yoo, Hyunju, additional, Yuan, Jinghua, additional, Yun, Hyeong-Sik, additional, Zenko, Tetsuya, additional, Zhang, Yapeng, additional, Zhang, Chuan-Peng, additional, Zhang, Guoyin, additional, Zhou, Jianjun, additional, Zhu, Lei, additional, Looze, Ilse de, additional, André, Philippe, additional, Dowell, C. Darren, additional, Eyres, Stewart, additional, Falle, Sam, additional, Robitaille, Jean-François, additional, and van Loo, Sven, additional

Published
2021
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131. What on Earth do I do now?

Author

Kirk, Jason

Abstract

The author comments on a research paper on the burden being placed by the healthcare system on the family members of patients admitted to the intensive care unit, which references a study by K. Leonard et al., published within the issue. Topics discussed include the involvement of family members in the creation of treatment plans for the patient, the struggles facing decision makers during such situations, and the clinical implications of the study.

Published
2024
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133. Herschel Gould Belt Survey Observations of Dense Cores in the Cepheus Flare Clouds

Author

Di Francesco, James, primary, Keown, Jared, additional, Fallscheer, Cassandra, additional, André, Philippe, additional, Ladjelate, Bilal, additional, Könyves, Vera, additional, Men’shchikov, Alexander, additional, Stephens-Whale, Shaun, additional, Nguyen-Luong, Quang, additional, Martin, Peter, additional, Sadavoy, Sarah, additional, Pezzuto, Stefano, additional, Fiorellino, Eleonora, additional, Benedettini, Milena, additional, Schneider, Nicola, additional, Bontemps, Sylvain, additional, Arzoumanian, Doris, additional, Palmeirim, Pedro, additional, Kirk, Jason M., additional, and Ward-Thompson, Derek, additional

Published
2020
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134. Assessment of the Impact of an Advanced Power System on a Turboelectric Single-Aisle Concept Aircraft

Author

Schnulo, Sydney L., primary, Chapman, Jeffryes W., additional, Hanlon, Patrick, additional, Hasseeb, Hashmatullah, additional, Jansen, Ralph, additional, Sadey, David, additional, Sozer, Emre, additional, Jensen, James, additional, Maldonado, Daniel, additional, Bhamidapati, Keerti, additional, Heersema, Nic, additional, Antcliff, Kevin, additional, Frederick, Zachary J., additional, and Kirk, Jason, additional

Published
2020
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135. The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333

Author

Doi, Yasuo, primary, Hasegawa, Tetsuo, additional, Furuya, Ray S., additional, Coudé, Simon, additional, Hull, Charles L. H., additional, Arzoumanian, Doris, additional, Bastien, Pierre, additional, Chen, Michael Chun-Yuan, additional, Di Francesco, James, additional, Friesen, Rachel, additional, Houde, Martin, additional, Inutsuka, Shu-ichiro, additional, Mairs, Steve, additional, Matsumura, Masafumi, additional, Onaka, Takashi, additional, Sadavoy, Sarah, additional, Shimajiri, Yoshito, additional, Tahani, Mehrnoosh, additional, Tomisaka, Kohji, additional, Eswaraiah, Chakali, additional, Koch, Patrick M., additional, Pattle, Kate, additional, Won Lee, Chang, additional, Tamura, Motohide, additional, Berry, David, additional, Ching, Tao-Chung, additional, Hwang, Jihye, additional, Kwon, Woojin, additional, Soam, Archana, additional, Wang, Jia-Wei, additional, Lai, Shih-Ping, additional, Qiu, Keping, additional, Ward-Thompson, Derek, additional, Byun, Do-Young, additional, Chen, Huei-Ru Vivien, additional, Chen, Wen Ping, additional, Chen, Zhiwei, additional, Cho, Jungyeon, additional, Choi, Minho, additional, Choi, Yunhee, additional, Chrysostomou, Antonio, additional, Chung, Eun Jung, additional, Diep, Pham Ngoc, additional, Duan, Hao-Yuan, additional, Fanciullo, Lapo, additional, Fiege, Jason, additional, Franzmann, Erica, additional, Friberg, Per, additional, Fuller, Gary, additional, Gledhill, Tim, additional, Graves, Sarah F., additional, Greaves, Jane S., additional, Griffin, Matt J., additional, Gu, Qilao, additional, Han, Ilseung, additional, Hatchell, Jennifer, additional, Hayashi, Saeko S., additional, Hoang, Thiem, additional, Inoue, Tsuyoshi, additional, Iwasaki, Kazunari, additional, Jeong, Il-Gyo, additional, Johnstone, Doug, additional, Kanamori, Yoshihiro, additional, Kang, Ji-hyun, additional, Kang, Miju, additional, Kang, Sung-ju, additional, Kataoka, Akimasa, additional, Kawabata, Koji S., additional, Kemper, Francisca, additional, Kim, Gwanjeong, additional, Kim, Jongsoo, additional, Kim, Kee-Tae, additional, Kim, Kyoung Hee, additional, Kim, Mi-Ryang, additional, Kim, Shinyoung, additional, Kirk, Jason M., additional, Kobayashi, Masato I. N., additional, Konyves, Vera, additional, Kusune, Takayoshi, additional, Kwon, Jungmi, additional, Lacaille, Kevin, additional, Law, Chi-Yan, additional, Lee, Chin-Fei, additional, Lee, Hyeseung, additional, Lee, Jeong-Eun, additional, Lee, Sang-Sung, additional, Lee, Yong-Hee, additional, Li, Dalei, additional, Li, Di, additional, Li, Hua-bai, additional, Liu, Hong-Li, additional, Liu, Junhao, additional, Liu, Sheng-Yuan, additional, Liu, Tie, additional, de Looze, Ilse, additional, Lyo, A-Ran, additional, Matthews, Brenda C., additional, Moriarty-Schieven, Gerald H., additional, Nagata, Tetsuya, additional, Nakamura, Fumitaka, additional, Nakanishi, Hiroyuki, additional, Ohashi, Nagayoshi, additional, Park, Geumsook, additional, Parsons, Harriet, additional, Peretto, Nicolas, additional, Pyo, Tae-Soo, additional, Qian, Lei, additional, Rao, Ramprasad, additional, Rawlings, Mark G., additional, Retter, Brendan, additional, Richer, John, additional, Rigby, Andrew, additional, Saito, Hiro, additional, Savini, Giorgio, additional, Scaife, Anna M. M., additional, Seta, Masumichi, additional, Shinnaga, Hiroko, additional, Tang, Ya-Wen, additional, Tsukamoto, Yusuke, additional, Viti, Serena, additional, Wang, Hongchi, additional, Whitworth, Anthony P., additional, Yen, Hsi-Wei, additional, Yoo, Hyunju, additional, Yuan, Jinghua, additional, Yun, Hyeong-Sik, additional, Zenko, Tetsuya, additional, Zhang, Chuan-Peng, additional, Zhang, Guoyin, additional, Zhang, Yapeng, additional, Zhou, Jianjun, additional, Zhu, Lei, additional, André, Philippe, additional, Dowell, C. Darren, additional, Eyres, Stewart P. S., additional, Falle, Sam, additional, van Loo, Sven, additional, and Robitaille, Jean-François, additional

Published
2020
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140. Eocene fault-controlled fluid flow and mineralization in the Paradox Basin, United States.

Author

Bailey, Lydia R., Kirk, Jason, Hemming, Sidney R., Krantz, Robert W., and Reiners, Peter W.

Subjects
*FLUID flow, *FAULT gouge, *EOCENE Epoch, *MINERALIZATION, *SEDIMENTARY rocks, *METASOMATISM
Abstract

Sedimentary rocks of the Paradox Basin of the Colorado Plateau (southwestern USA) record widespread manifestations of paleo-fluid flow and fluid-rock reactions including Cu, U-V, and Fe-Mn mineral deposits, Si and Ca metasomatism, hydrocarbon accumulations, and bleached sandstones. Many of these are spatially associated with faults. Here we show evidence for a widespread phase of fault-related fluid migration and mineralization at 41-48 Ma in the Paradox Basin. We measured K-Ar dates of multiple size fractions of clay-rich fault gouge, yielding statistically overlapping dates of authigenic (1Md) illite for the Salt Valley (47.0 ± 3.0 Ma), Kane Springs (47.7 ± 3.8 Ma), Cliffdweller (43.4 ± 4.6 Ma), Courthouse (41.9 ± 2.3 Ma), Lisbon Valley (45.3 ± 0.9 Ma), and GTO (48.1 ± 2.6 Ma) faults. The latter two have an illite Rb-Sr isochron age of 50.9 ± 3.5 Ma, and fault-adjacent bornite has a Re-Os isochron age of 47.5 ± 1.5 Ma. Authigenic illite from a paleo-oil reservoir near the Courthouse fault formed from the interaction of reduced fluids with oxidized red-bed sandstones at 41.1 ± 2.5 Ma. The Moab and Keystone faults have older authigenic illite ages of 59.1 ± 5.7 Ma and 65.2 ± 1.0 Ma, respectively. Our results show a close temporal relationship between fault gouge formation, red-bed bleaching, and Cu mineralization during an enigmatic time interval, raising questions about drivers of Eocene fluid flow. [ABSTRACT FROM AUTHOR]

Published
2022
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141. A Paleo-Lake and wetland paleoecology associated with human use of the distal Old River Bed Delta at the Pleistocene-Holocene transition in the Bonneville Basin, Utah, USA.

Author

Palacios-Fest, Manuel R., Duke, Daron, Young, D. Craig, Kirk, Jason D., and Oviatt, Charles G.

Subjects
RIVER channels, PLEISTOCENE-Holocene boundary, SALT lakes, WATERSHEDS, PALEOECOLOGY, WETLANDS, FRESH water
Abstract

Mollusk and ostracode assemblages from the distal Old River Bed delta (ORBD) contribute to our understanding of the Lake Bonneville basin Pleistocene-Holocene transition (PHT) wetland and human presence on the ORBD (ca. 13,000-7500 cal yr BP). Located on U.S. Air Force-managed lands of the Great Salt Lake Desert (GSLD) in western Utah, USA, the area provided 30 samples from 12 localities. The biological assemblages and the potential water sources using 87Sr/86Sr analyses showed wetland expansion and contraction across the PHT, including the Younger-Dryas Chronozone (YDC). The record reflects cold, freshwater conditions, which is uncharacteristic of the Great Salt Lake Desert, after recession of Lake Bonneville. Lymnaea stagnalis jugularis, Cytherissa lacustris, and possibly Candona sp. cf. C. adunca, an endemic and extinct species only reported from Lake Bonneville, suggest cold-water environments. Between 13,000-12,400 cal yr BP, a shallow lake formed, referred to as the Old River Bed delta lake, fed by Lake Gunnison, as shown by 87Sr/86Sr ratios of 0.71024-0.71063 in mollusk fossils collected at the ORBD, characteristic of the Sevier basin. These findings add paleoenvironmental context to the long-term use of the ORBD by humans in constantly changing wetland habitats between 13,000-9500 cal yr BP. [ABSTRACT FROM AUTHOR]

Published
2022
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142. The JCMT BISTRO Survey: The Magnetic Field In The Starless Core $��$ Ophiuchus C

Author

Liu, Junhao, Qiu, Keping, Berry, David, Di Francesco, James, Bastien, Pierre, Koch, Patrick M., Furuya, Ray S., Kim, Kee-Tae, Coud��, Simon, Lee, Chang Won, Soam, Archana, Eswaraiah, Chakali, Li, Di, Hwang, Jihye, Lyo, A-Ran, Pattle, Kate, Hasegawa, Tetsuo, Kwon, Woojin, Lai, Shih-Ping, Ward-Thompson, Derek, Ching, Tao-Chung, Chen, Zhiwei, Gu, Qilao, Li, Dalei, Li, Hua-bai, Liu, Hong-Li, Qian, Lei, Wang, Hongchi, Yuan, Jinghua, Zhang, Chuan-Peng, Zhang, Guoyin, Zhang, Ya-Peng, Zhou, Jianjun, Zhu, Lei, Andr��, Philippe, Arzoumanian, Doris, Aso, Yusuke, Byun, Do-Young, Chen, Michael Chun-Yuan, Chen, Huei-Ru Vivien, Chen, Wen Ping, Cho, Jungyeon, Choi, Minho, Chrysostomou, Antonio, Chung, Eun Jung, Doi, Yasuo, Drabek-Maunder, Emily, Dowell, C. Darren, Eyres, Stewart P. S., Falle, Sam, Fanciullo, Lapo, Fiege, Jason, Franzmann, Erica, Friberg, Per, Friesen, Rachel K., Fuller, Gary, Gledhill, Tim, Graves, Sarah F., Greaves, Jane S., Griffin, Matt J., Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko S., Hoang, Thiem, Holland, Wayne, Houde, Martin, Inoue, Tsuyoshi, Inutsuka, Shu-ichiro, Iwasaki, Kazunari, Jeong, Il-Gyo, Johnstone, Doug, Kanamori, Yoshihiro, Kang, Ji-hyun, Kang, Miju, Kang, Sung-ju, Kataoka, Akimasa, Kawabata, Koji S., Kemper, Francisca, Kim, Gwanjeong, Kim, Jongsoo, Kim, Kyoung Hee, Kim, Mi-Ryang, Kim, Shinyoung, Kirk, Jason M., Kobayashi, Masato I. N., Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin M., Lee, Chin-Fei, Lee, Jeong-Eun, Lee, Hyeseung, Lee, Sang-Sung, Liu, Sheng-Yuan, Liu, Tie, van Loo, Sven, Mairs, Steve, Matsumura, Masafumi, Matthews, Brenda C., Moriarty-Schieven, Gerald H., Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Ohashi, Nagayoshi, Onaka, Takashi, Parker, Josh, Parsons, Harriet, Pascale, Enzo, Peretto, Nicolas, Pon, Andy, Pyo, Tae-Soo, Rao, Ramprasad, Rawlings, Mark G., Retter, Brendan, Richer, John, Rigby, Andrew, Robitaille, Jean-Fran��ois, Sadavoy, Sarah, Saito, Hiro, Savini, Giorgio, Scaife, Anna M. M., Seta, Masumichi, Shinnaga, Hiroko, Tamura, Motohide, Tang, Ya-Wen, Tomisaka, Kohji, Tsukamoto, Yusuke, Wang, Jia-Wei, Whitworth, Anthony P., Yen, Hsi-Wei, Yoo, Hyunju, and Zenko, Tetsuya

Subjects
Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Galaxy Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

We report 850~$��$m dust polarization observations of a low-mass ($\sim$12 $M_{\odot}$) starless core in the $��$ Ophiuchus cloud, Ophiuchus C, made with the POL-2 instrument on the James Clerk Maxwell Telescope (JCMT) as part of the JCMT B-fields In STar-forming Region Observations (BISTRO) survey. We detect an ordered magnetic field projected on the plane of sky in the starless core. The magnetic field across the $\sim$0.1~pc core shows a predominant northeast-southwest orientation centering between $\sim$40$^\circ$ to $\sim$100$^\circ$, indicating that the field in the core is well aligned with the magnetic field in lower-density regions of the cloud probed by near-infrared observations and also the cloud-scale magnetic field traced by Planck observations. The polarization percentage ($P$) decreases with an increasing total intensity ($I$) with a power-law index of $-$1.03 $\pm$ 0.05. We estimate the plane-of-sky field strength ($B_{\mathrm{pos}}$) using modified Davis-Chandrasekhar-Fermi (DCF) methods based on structure function (SF), auto-correlation (ACF), and unsharp masking (UM) analyses. We find that the estimates from the SF, ACF, and UM methods yield strengths of 103 $\pm$ 46 $��$G, 136 $\pm$ 69 $��$G, and 213 $\pm$ 115 $��$G, respectively. Our calculations suggest that the Ophiuchus C core is near magnetically critical or slightly magnetically supercritical (i.e. unstable to collapse). The total magnetic energy calculated from the SF method is comparable to the turbulent energy in Ophiuchus C, while the ACF method and the UM method only set upper limits for the total magnetic energy because of large uncertainties., 22 pages, 12 figures

Published
2019
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143. Revealing the Two 'Horns' of Taurus with GAIA DR2

Author

Fleming, Graham D., Kirk, Jason Matthew, Ward-Thompson, Derek, and Pattle, Kate

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics - Astrophysics of Galaxies, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

We investigate the spatial properties of sources from the GAIA catalogue previously identified as being members of the Taurus star forming region and which appear in the Spitzer catalogue. We study an area of sky of 10x15 deg, centred on Right Ascension (2000.0) = 68.5 deg and Declination (2000.0)= 27.0 deg, this being an area surrounding the Taurus molecular cloud. We use data obtained from the GAIA DR2 release. By using an inversion of GAIA parallax measurements to obtain distance values and by defining limits to the proper motions of the Taurus moving group, we are able to show that there are substantial differences in depth within the Taurus complex. Our results suggest that the Taurus cloud has significant depth and that there are two main associations centred at ~130.6+/-0.7 pc and ~160.2+/-0.9 pc at 1{\sigma}. These two associations also have different proper motions, of 24.5+/-2.8 and 20.1+/-2.4 mas/yr respectively. We here label them the 'Two Horns' of Taurus., Comment: 8 figures, 3 tables, 18 pages in preprint format, submitted to ApJ as manuscript AAS22430 on 18-Jan-2020

Published
2019
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144. Like no other: the Battering Rams in Operation Iraqi Freedom

Author

Graham, William H., Kirk, Jason A., and Calese, Gary D.

Subjects
United States. Army. Corps of Engineers, Military paraphernalia, Soldiers, Postwar reconstruction, Engineers, Mechanization, Military, Environmental issues, Military and naval science
Abstract

Like no other. This phrase certainly characterizes the year-long tour that the 40th Engineer Battalion 'Battering Rams' recently completed in Operation Iraqi Freedom (OIF). It was like no other in [...]

Published
2007

145. How the power spectrum of dust continuum images may hide the presence of a characteristic filament width

Author

Roy, A, Andre, P.H., Arzoumanian, D., Miville-Deschenes, M.A., Konyves, V., Schneider, N., Pezzuto, S., Palmeirim, P., Kirk, Jason Matthew, Roy, A, Andre, P.H., Arzoumanian, D., Miville-Deschenes, M.A., Konyves, V., Schneider, N., Pezzuto, S., Palmeirim, P., and Kirk, Jason Matthew

Abstract

Context. Herschel observations of interstellar clouds support a paradigm for star formation in which molecular filaments play a central role. One of the foundations of this paradigm is the finding, based on detailed studies of the transverse column density profiles observed with Herschel, that nearby molecular filaments share a common inner width of ∼0.1 pc. The existence of a characteristic filament width has been recently questioned, however, on the grounds that it seems inconsistent with the scale-free nature of the power spectrum of interstellar cloud images. Aims. In an effort to clarify the origin of this apparent discrepancy, we examined the power spectra of the Herschel/SPIRE 250 μm images of the Polaris, Aquila, and Taurus–L1495 clouds in detail and performed a number of simple numerical experiments by injecting synthetic filaments in both the Herschel images and synthetic background images. Methods. We constructed several populations of synthetic filaments of 0.1 pc width with realistic area filling factors (Afil) and distributions of column density contrasts (δc). After adding synthetic filaments to the original Herschel images, we recomputed the image power spectra and compared the results with the original, essentially scale-free power spectra. We used the χ2variance of the residuals between the best power-law fit and the output power spectrum in each simulation as a diagnostic of the presence (or absence) of a significant departure from a scale-free power spectrum. Results. We find that χ2variance depends primarily on the combined parameter δ22 Afil. According to our numerical experiments, a significant departure from a scale-free behavior and thus the presence of a characteristic filament width become detectable in the power spectrum when δ22 Afil ⪆ 0.1 for synthetic filaments with Gaussian profiles and δ22 Afil ⪆ 0.4 for synthetic filaments with Plummer-like density profiles. Analysis of the real Herschel 250 μm data suggests that δ22 Afil is ∼0.01 i

Published
2019

146. JCMT BISTRO Survey: Magnetic Fields within the Hub-filament Structure in IC 5146

Author

Wang, Jia-Wei, Lai, Shih-Ping, Eswaraiah, Chakali, Pattle, Kate, Francesco, James Di, Ward-Thompson, Derek, Eyres, Stewart Paul shore, Kirk, Jason Matthew, Konyves, Vera, Wang, Jia-Wei, Lai, Shih-Ping, Eswaraiah, Chakali, Pattle, Kate, Francesco, James Di, Ward-Thompson, Derek, Eyres, Stewart Paul shore, Kirk, Jason Matthew, and Konyves, Vera

Abstract

We present the 850 μm polarization observations toward the IC 5146 filamentary cloud taken using the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) and its associated polarimeter (POL-2), mounted on the James Clerk Maxwell Telescope, as part of the B-fields In STar forming Regions Observations. This work is aimed at revealing the magnetic field morphology within a core-scale (lesssim1.0 pc) hub-filament structure (HFS) located at the end of a parsec-scale filament. To investigate whether the observed polarization traces the magnetic field in the HFS, we analyze the dependence between the observed polarization fraction and total intensity using a Bayesian approach with the polarization fraction described by the Rice likelihood function, which can correctly describe the probability density function of the observed polarization fraction for low signal-to-noise ratio data. We find a power-law dependence between the polarization fraction and total intensity with an index of 0.56 in A V ~ 20–300 mag regions, suggesting that the dust grains in these dense regions can still be aligned with magnetic fields in the IC 5146 regions. Our polarization maps reveal a curved magnetic field, possibly dragged by the contraction along the parsec-scale filament. We further obtain a magnetic field strength of 0.5 ± 0.2 mG toward the central hub using the Davis–Chandrasekhar–Fermi method, corresponding to a mass-to-flux criticality of ~1.3 ± 0.4 and an Alfvénic Mach number of <0.6. These results suggest that gravity and magnetic field are currently of comparable importance in the HFS and that turbulence is less important.

Published
2019

147. The JCMT BISTRO Survey: The Magnetic Field of the Barnard 1 Star-forming Region

Author

Coude, Simon, Bastien, Pierre, Houde, Martin, Sadavoy, Sarah, Friesen, Rachel, Di Francesco, James, Johnstone, Doug, Ward-Thompson, Derek, Eyres, Stewart Paul shore, Kirk, Jason Matthew, Et, Al, Coude, Simon, Bastien, Pierre, Houde, Martin, Sadavoy, Sarah, Friesen, Rachel, Di Francesco, James, Johnstone, Doug, Ward-Thompson, Derek, Eyres, Stewart Paul shore, Kirk, Jason Matthew, and Et, Al

Abstract

We present the POL-2 850 μm linear polarization map of the Barnard 1 clump in the Perseus molecular cloud complex from the B-fields In STar-forming Region Observations survey at the James Clerk Maxwell Telescope. We find a trend of decreasing polarization fraction as a function of total intensity, which we link to depolarization effects toward higher-density regions of the cloud. We then use the polarization data at 850 μm to infer the plane-of-sky orientation of the large-scale magnetic field in Barnard 1. This magnetic field runs north–south across most of the cloud, with the exception of B1-c, where it turns more east–west. From the dispersion of polarization angles, we calculate a turbulence correlation length of 5.0 ± 2farcs5 (1500 au) and a turbulent-to-total magnetic energy ratio of 0.5 ± 0.3 inside the cloud. We combine this turbulent-to-total magnetic energy ratio with observations of NH3 molecular lines from the Green Bank Ammonia Survey to estimate the strength of the plane-of-sky component of the magnetic field through the Davis–Chandrasekhar–Fermi method. With a plane-of-sky amplitude of 120 ± 60 μG and a criticality criterion λ c = 3.0 ± 1.5, we find that Barnard 1 is a supercritical molecular cloud with a magnetic field nearly dominated by its turbulent component.

Published
2019

148. How the power spectrum of dust continuum images may hide the presence of a characteristic filament width

Author

Roy, Arabindo, André, Philippe, Arzoumanian, Doris, Miville-Deschênes, Marc-Antoine, Könyves, Vera, Schneider, Nicola, Pezzuto, Stefano, Palmeirim, Pedro, Kirk, Jason M., Roy, Arabindo, André, Philippe, Arzoumanian, Doris, Miville-Deschênes, Marc-Antoine, Könyves, Vera, Schneider, Nicola, Pezzuto, Stefano, Palmeirim, Pedro, and Kirk, Jason M.

Abstract

Herschel observations of interstellar clouds support a paradigm for star formation in which filaments play a central role. One of the foundations of this paradigm is the finding, based on studies of the radial column density profiles, that nearby filaments share a common inner width of ~0.1 pc. The existence of a characteristic filament width has been questioned, however, as it seems inconsistent with the scale-free nature of the power spectrum of cloud images. In an effort to clarify the origin of this apparent discrepancy, we examined the power spectra of the Herschel 250 micron images of the Polaris, Aquila, and Taurus clouds and performed a number of simple numerical experiments by injecting synthetic filaments in both the Herschel images and synthetic background images. We constructed several populations of synthetic filaments of 0.1 pc width with realistic area filling factors ($A_{\rm fil}$) and distributions of column density contrasts ($\delta_c$). After adding synthetic filaments to the Herschel images, we re-computed the image power spectra and compared the results with the original, essentially scale-free power spectra. We used the $\chi^2$ variance of the residuals between the best power-law fit and the output power spectrum as a diagnostic of the presence of a significant departure from a scale-free power spectrum. We found that the $\chi^2$ variance depends primarily on the combined parameter $\delta_c^2\, A_{\rm fil}$. Analysis of the real Herschel data shows that the observed filamentary structure contributes only 1/5 of the power in the power spectra at angular frequencies where an effect of the characteristic filament width is expected. We conclude that the scale-free power spectra of Herschel images remain consistent with the existence of a characteristic filament width ~0.1 pc and do not invalidate the conclusions drawn from studies of the filament profiles., Comment: 14 pages, 18 figures. Accepted for publication in Astronomy and Astrophysics

Published
2019
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149. Integrated single-cell analysis defines the epigenetic basis of castration-resistant prostate luminal cells

Author

Kirk, Jason S., Wang, Jie, Long, Mark, Rosario, Spencer, Tracz, Amanda, Ji, Yibing, Kumar, Rahul, Liu, Xiaozhuo, Jamroze, Anmbreen, Singh, Prashant K., Puzanov, Igor, Chatta, Gurkamal, Cheng, Qing, Huang, Jiaoti, Wrana, Jeffrey L., Lovell, Jonathan, Yu, Han, Liu, Song, Shen, Michael M., Liu, Tao, and Tang, Dean G.

Abstract

Understanding prostate response to castration and androgen receptor signaling inhibitors (ARSI) is critical to improving long-term prostate cancer (PCa) patient survival. Here, we use a multi-omics approach on 229,794 single cells to create a mouse single-cell reference atlas for interpreting mouse prostate biology and castration response. Our reference atlas refines single-cell annotations and provides a chromatin context, which, when coupled with mouse lineage tracing, demonstrates that castration-resistant luminal cells are distinct from the pre-existent urethra-proximal stem/progenitor cells. Molecular pathway analysis and therapeutic studies further implicate AP1 (JUN/FOS), WNT/β-catenin, FOXQ1, NF-κB, and JAK/STAT pathways as major drivers of castration-resistant luminal populations with relevance to human PCa. Our datasets, which can be explored through an interactive portal (https://visportal.roswellpark.org/data/tang/), can aid in developing combination treatments with ARSI for advanced PCa patients.

Published
2024
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150. A First Look at BISTRO Observations of The $��$ Oph-A core

Author

Kwon, Jungmi, Doi, Yasuo, Tamura, Motohide, Matsumura, Masafumi, Pattle, Kate, Berry, David, Sadavoy, Sarah, Matthews, Brenda C., Ward-Thompson, Derek, Hasegawa, Tetsuo, Furuya, Ray S., Pon, Andy, Di Francesco, James, Arzoumanian, Doris, Hayashi, Saeko S., Kawabata, Koji S., Onaka, Takashi, Choi, Minho, Kang, Miju, Hoang, Thiem, Lee, Chang Won, Lee, Sang-Sung, Liu, Hong-Li, Liu, Tie, Inutsuka, Shu-Ichiro, Eswaraiah, Chakali, Bastien, Pierre, Kwon, Woojin, Lai, Shih-Ping, Qiu, Keping, Coude, Simon, Franzmann, Erica, Friberg, Per, Graves, Sarah F., Greaves, Jane S., Houde, Martin, Johnstone, Doug, Kirk, Jason M., Koch, Patrick M., Li, Di, Parsons, Harriet, Rao, Ramprasad, Rawlings, Mark, Shinnaga, Hiroko, Van Loo, Sven, Aso, Yusuke, Byun, Do-Young, Chen, Huei-Ru, Chen, Mike C. -Y., Chen, Wen Ping, Ching, Tao-Chung, Cho, Jungyeon, Chrysostomou, Antonio, Chung, Eun Jung, Drabek-Maunder, Emily, Eyres, Stewart P. S., Fiege, Jason, Friesen, Rachel K., Fuller, Gary, Gledhill, Tim, Griffin, Matt J., Gu, Qilao, Hatchell, Jennifer, Holland, Wayne, Inoue, Tsuyoshi, Iwasaki, Kazunari, Jeong, Il-Gyo, Kang, Ji-Hyun, Kang, Sung-Ju, Kemper, Francisca, Kim, Gwanjeong, Kim, Jongsoo, Kim, Kee-Tae, Kim, Kyoung Hee, Kim, Mi-Ryang, Kim, Shinyoung, Lacaille, Kevin M., Lee, Jeong-Eun, Li, Dalei, Li, Hua-Bai, Liu, Junhao, Liu, Sheng-Yuan, Lyo, A-Ran, Mairs, Steve, Moriarty-Schieven, Gerald H., Nakamura, Fumitaka, Nakanishi, Hiroyuki, Ohashi, Nagayoshi, Peretto, Nicolas, Pyo, Tae-Soo, Qian, Lei, Retter, Brendan, Richer, John, Rigby, Andrew, Robitaille, Jean-Franois, Savini, Giorgio, Scaife, Anna M. M., Soam, Archana, Tang, Ya-Wen, Tomisaka, Kohji, Wang, Hongchi, Wang, Jia-Wei, Whitworth, Anthony P., Yen, Hsi-Wei, Yoo, Hyunju, Yuan, Jinghua, Zhang, Chuan-Peng, Zhang, Guoyin, Zhou, Jianjun, Zhu, Lei, Andre, Philippe, Dowell, C. Darren, Falle, Sam, Tsukamoto, Yusuke, Nakagawa, Takao, Kanamori, Yoshihiro, Kataoka, Akimasa, Kobayashi, Masato I. N., Nagata, Tetsuya, Saito, Hiro, Seta, Masumichi, and Zenko, Tetsuya

Subjects
Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

We present 850 $��$m imaging polarimetry data of the $��$ Oph-A core taken with the Submillimeter Common-User Bolometer Array-2 (SCUBA-2) and its polarimeter (POL-2), as part of our ongoing survey project, BISTRO (B-fields In STar forming RegiOns). The polarization vectors are used to identify the orientation of the magnetic field projected on the plane of the sky at a resolution of 0.01 pc. We identify 10 subregions with distinct polarization fractions and angles in the 0.2 pc $��$ Oph A core; some of them can be part of a coherent magnetic field structure in the $��$ Oph region. The results are consistent with previous observations of the brightest regions of $��$ Oph-A, where the degrees of polarization are at a level of a few percents, but our data reveal for the first time the magnetic field structures in the fainter regions surrounding the core where the degree of polarization is much higher ($> 5 \%$). A comparison with previous near-infrared polarimetric data shows that there are several magnetic field components which are consistent at near-infrared and submillimeter wavelengths. Using the Davis-Chandrasekhar-Fermi method, we also derive magnetic field strengths in several sub-core regions, which range from approximately 0.2 to 5 mG. We also find a correlation between the magnetic field orientations projected on the sky with the core centroid velocity components., 22 pages, 11 figures, accepted for publication in ApJ

Published
2018
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