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218 results on '"Cirasuolo, Michele"'

101. The KMOS Redshift One Spectroscopic Survey (KROSS): dynamical properties, gas and dark matter fractions of typicalz∼ 1 star-forming galaxies

Author

Stott, John P., primary, Swinbank, A. M., additional, Johnson, Helen L., additional, Tiley, Alfie, additional, Magdis, Georgios, additional, Bower, Richard, additional, Bunker, Andrew J., additional, Bureau, Martin, additional, Harrison, Chris M., additional, Jarvis, Matt J., additional, Sharples, Ray, additional, Smail, Ian, additional, Sobral, David, additional, Best, Philip, additional, and Cirasuolo, Michele, additional

Published
2016
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106. The metrology system for the multi-object optical and near-infrared spectrograph MOONS

Author

Torres-Torriti, Miguel, additional, Vanzi, Leonardo, additional, Dünner, Rolando, additional, Belmar, Francisco, additional, Dauvin, Louise, additional, Chen, Tzu-Chiang, additional, Cirasuolo, Michele, additional, Taylor, William, additional, Schnetler, Hermine, additional, Montgomery, David, additional, Rees, Philip, additional, and Cabral, Alexandre, additional

Published
2014
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107. Performance of the K-band multi-object spectrograph (KMOS) on the ESO VLT

Author

Sharples, Ray, additional, Bender, Ralf, additional, Agudo Berbel, Alex, additional, Bennett, Richard, additional, Bezawada, Naidu, additional, Castillo, Roberto, additional, Cirasuolo, Michele, additional, Clark, Paul, additional, Davidson, George, additional, Davies, Richard, additional, Davies, Roger, additional, Dubbeldam, Marc, additional, Fairley, Alasdair, additional, Finger, Gert, additional, Schreiber, Natascha F., additional, Genzel, Reinhard, additional, Haefner, Reinhold, additional, Hess, Achim, additional, Jung, Ives, additional, Lewis, Ian, additional, Montgomery, David, additional, Murray, John, additional, Muschielok, Bernard, additional, Pirard, Jeff, additional, Ramsay, Suzanne, additional, Rees, Philip, additional, Richter, Josef, additional, Robertson, David, additional, Robson, Ian, additional, Rolt, Stephen, additional, Saglia, Roberto, additional, Saviane, Ivo, additional, Schlichter, Joerg, additional, Schmidtobreik, Linda, additional, Segovia, Alex, additional, Smette, Alain, additional, Tecza, Matthias, additional, Todd, Stephen, additional, Wegner, Michael, additional, and Wiezorrek, Erich, additional

Published
2014
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110. Instrumentation for ESO's Extremely Large Telescope

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Ramsay, Suzanne, Casali, Mark, Amico, Paola, Bezawada, Naidu, Cirasuolo, Michele, Conzelmann, Ralf, Egner, Sebastian, Frank, Christoph, George, Elizabeth, González Herrera, Juan Carlos, Hammersley, Peter, Haupt, Christoph, Heijmans, Jeroen, Ives, Derek, Jakob, Gerd, Kerber, Florian, Koehler, Betrand, Mainieri, Vincenzo, Manescau, Antonio, Marchetti, Enrico, Oberti, Sylvain, Padovani, Paolo, Schmid, Christian, Schimpelsberger, Johannes, Siebenmorgen, Ralf, Tamai, Roberto, and Vernet, Joël

Published
2018
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111. Rising MOONS: an update on the VLT’s next multi-object spectrograph as it begins to grow

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Taylor, William, Cirasuolo, Michele, Afonso, Jose, Carollo, Marcella, Evans, Chris, Flores, Hector, Maiolino, Roberto, Paltani, Stephane, Vanzi, Leonardo, Abreu, Manuel, Amans, Jean-Phillipe, Atkinson, David, Barrett, Joe, Beard, Steven, Béchet, Celementine, Black, Martin, Boettger, David, Brierley, Saskia, Buscher, David, Cabral, Alexandre, Cochrane, William, Coelho, João, Colling, Miriam, Conzelmann, Ralf, Dalessio, Francesco, Dauvin, Louise, Davidson, George, Drass, Holger, Dünner, Rolando, Fairley, Alasdair, Fasola, Giles, Ferruzzi, Debora, Fisher, Martin, Flores, Mauricio, Garilli, Bianca, Gaudemard, Julien, Gonzalez, Oscar, Guinouard, Isabelle, Gutierrez, Pablo, Hammersley, Peter, Haigron, Régis, Haniff, Chris, Hayati, Mahmoud, Ives, Derek, Iwert, Olaf, Laporte, Philippe, Lee, David, Li Causi, Gianluca, Luco, Yerko, Macleod, Alastair, Mainieri, Vincenzo, Maire, Charles, Melse, Basile-Thierry, Nix, Johannes, Oliva, Ernesto, Oliveira, António, Origlia, Livia, Parry, Ian, Pedichini, Fernando, Piazzesi, Roberto, Rees, Phil, Reix, Florent, Rodrigues, Myriam, Rojas, Felipe, Rota, Stefano, Royer, Frédéric, Santos, Pedro, Schnell, Robin, Shen, Tzu-Chiang, Sordet, Michael, Strachan, Jonathan, Sun, Xiaowei, Tait, Graham, Torres, Miguel, Tozzi, Andre, Tulloch, Simon, Navarro, Álvaro Valenzuela, Von Dran, Lauren, Waring, Chris, Watson, Stephen, Woodward, Brian, and Yang, Yanbin

Published
2018
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112. EVOLUTION OF THE SIZES OF GALAXIES OVER 7 < 12 REVEALED BY THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN

Author

Ono, Yoshiaki, primary, Ouchi, Masami, additional, Curtis-Lake, Emma, additional, Schenker, Matthew A., additional, Ellis, Richard S., additional, McLure, Ross J., additional, Dunlop, James S., additional, Robertson, Brant E., additional, Koekemoer, Anton M., additional, Bowler, Rebecca A. A., additional, Rogers, Alexander B., additional, Schneider, Evan, additional, Charlot, Stephane, additional, Stark, Daniel P., additional, Shimasaku, Kazuhiro, additional, Furlanetto, Steven R., additional, and Cirasuolo, Michele, additional

Published
2013
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117. THE UV LUMINOSITY FUNCTION OF STAR-FORMING GALAXIES VIA DROPOUT SELECTION AT REDSHIFTSz∼ 7 AND 8 FROM THE 2012 ULTRA DEEP FIELD CAMPAIGN

Author

Schenker, Matthew A., primary, Robertson, Brant E., additional, Ellis, Richard S., additional, Ono, Yoshiaki, additional, McLure, Ross J., additional, Dunlop, James S., additional, Koekemoer, Anton, additional, Bowler, Rebecca A. A., additional, Ouchi, Masami, additional, Curtis-Lake, Emma, additional, Rogers, Alexander B., additional, Schneider, Evan, additional, Charlot, Stephane, additional, Stark, Daniel P., additional, Furlanetto, Steven R., additional, and Cirasuolo, Michele, additional

Published
2013
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118. NEW CONSTRAINTS ON COSMIC REIONIZATION FROM THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN

Author

Robertson, Brant E., primary, Furlanetto, Steven R., additional, Schneider, Evan, additional, Charlot, Stephane, additional, Ellis, Richard S., additional, Stark, Daniel P., additional, McLure, Ross J., additional, Dunlop, James S., additional, Koekemoer, Anton, additional, Schenker, Matthew A., additional, Ouchi, Masami, additional, Ono, Yoshiaki, additional, Curtis-Lake, Emma, additional, Rogers, Alexander B., additional, Bowler, Rebecca A. A., additional, and Cirasuolo, Michele, additional

Published
2013
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119. The KMOS Redshift One Spectroscopic Survey (KROSS): dynamical properties, gas and dark matter fractions of typical z ~ 1 star-forming galaxies.

Author

Stott, John P., Swinbank, A. M., Johnson, Helen L., Tiley, Alfie, Magdis, Georgios, Bower, Richard, Bunker, Andrew J., Bureau, Martin, Harrison, Chris M., Jarvis, Matt J., Sharples, Ray, Smail, Ian, Sobral, David, Best, Philip, and Cirasuolo, Michele

Subjects
REDSHIFT, DARK matter, STAR formation, GALAXY formation, STELLAR dynamics
Abstract

The KMOS Redshift One Spectroscopic Survey (KROSS) is an ESO-guaranteed time survey of 795 typical star-forming galaxies in the redshift range z = 0.8-1.0 with the KMOS instrument on the Very Large Telescope. In this paper, we present resolved kinematics and star formation rates for 584 z ~ 1 galaxies. This constitutes the largest near-infrared Integral Field Unit survey of galaxies at z ~ 1 to date. We demonstrate the success of our selection criteria with 90 per cent of our targets found to be H α emitters, of which 81 per cent are spatially resolved. The fraction of the resolved KROSS sample with dynamics dominated by ordered rotation is found to be 83 ± 5 per cent. However, when compared with local samples these are turbulent discs with high gas to baryonic mass fractions, ~35 per cent, and the majority are consistent with being marginally unstable (Toomre Q ~ 1). There is no strong correlation between galaxy averaged velocity dispersion and the total star formation rate, suggesting that feedback from star formation is not the origin of the elevated turbulence. We postulate that it is the ubiquity of high (likely molecular) gas fractions and the associated gravitational instabilities that drive the elevated star formation rates in these typical z ~ 1 galaxies, leading to the 10-fold enhanced star formation rate density. Finally, by comparing the gas masses obtained from inverting the star formation law with the dynamical and stellar masses, we infer an average dark matter to total mass fraction within 2.2re (9.5 kpc) of 65 ± 12 per cent, in agreement with the results from hydrodynamic simulations of galaxy formation. [ABSTRACT FROM AUTHOR]

Published
2016
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120. THE ABUNDANCE OF STAR-FORMING GALAXIES IN THE REDSHIFT RANGE 8.5-12: NEW RESULTS FROM THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN

Author

Ellis, Richard S., primary, McLure, Ross J., additional, Dunlop, James S., additional, Robertson, Brant E., additional, Ono, Yoshiaki, additional, Schenker, Matthew A., additional, Koekemoer, Anton, additional, Bowler, Rebecca A. A., additional, Ouchi, Masami, additional, Rogers, Alexander B., additional, Curtis-Lake, Emma, additional, Schneider, Evan, additional, Charlot, Stephane, additional, Stark, Daniel P., additional, Furlanetto, Steven R., additional, and Cirasuolo, Michele, additional

Published
2012
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122. Status of the KMOS multi-object near-infrared integral field spectrograph

Author

Sharples, Ray, primary, Bender, Ralf, additional, Agudo Berbel, Alex, additional, Bennett, Richard, additional, Bezawada, Naidu, additional, Cirasuolo, Michele, additional, Clark, Paul, additional, Davidson, George, additional, Davies, Richard, additional, Davies, Roger, additional, Dubbeldam, Marc, additional, Fairley, Alasdair, additional, Finger, Gert, additional, Genzel, Reinhard, additional, Haefner, Reinhold, additional, Hess, Achim, additional, Lewis, Ian, additional, Montgomery, David, additional, Murray, John, additional, Muschielok, Bernard, additional, Förster-Schreiber, Natascha, additional, Pirard, Jeff, additional, Ramsay, Suzanne, additional, Rees, Phil, additional, Richter, Josef, additional, Robertson, David, additional, Robson, Ian, additional, Rolt, Stephen, additional, Saglia, Roberto, additional, Schlichter, Jörg, additional, Tecza, Mathias, additional, Todd, Stephen, additional, Wegner, Michael, additional, and Wiezorrek, Erich, additional

Published
2012
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124. CANDELS: THE COSMIC ASSEMBLY NEAR-INFRARED DEEP EXTRAGALACTIC LEGACY SURVEY—THE HUBBLE SPACE TELESCOPE OBSERVATIONS, IMAGING DATA PRODUCTS, AND MOSAICS

Author

Koekemoer, Anton M., primary, Faber, S. M., additional, Ferguson, Henry C., additional, Grogin, Norman A., additional, Kocevski, Dale D., additional, Koo, David C., additional, Lai, Kamson, additional, Lotz, Jennifer M., additional, Lucas, Ray A., additional, McGrath, Elizabeth J., additional, Ogaz, Sara, additional, Rajan, Abhijith, additional, Riess, Adam G., additional, Rodney, Steve A., additional, Strolger, Louis, additional, Casertano, Stefano, additional, Castellano, Marco, additional, Dahlen, Tomas, additional, Dickinson, Mark, additional, Dolch, Timothy, additional, Fontana, Adriano, additional, Giavalisco, Mauro, additional, Grazian, Andrea, additional, Guo, Yicheng, additional, Hathi, Nimish P., additional, Huang, Kuang-Han, additional, van der Wel, Arjen, additional, Yan, Hao-Jing, additional, Acquaviva, Viviana, additional, Alexander, David M., additional, Almaini, Omar, additional, Ashby, Matthew L. N., additional, Barden, Marco, additional, Bell, Eric F., additional, Bournaud, Frédéric, additional, Brown, Thomas M., additional, Caputi, Karina I., additional, Cassata, Paolo, additional, Challis, Peter J., additional, Chary, Ranga-Ram, additional, Cheung, Edmond, additional, Cirasuolo, Michele, additional, Conselice, Christopher J., additional, Cooray, Asantha Roshan, additional, Croton, Darren J., additional, Daddi, Emanuele, additional, Davé, Romeel, additional, de Mello, Duilia F., additional, de Ravel, Loic, additional, Dekel, Avishai, additional, Donley, Jennifer L., additional, Dunlop, James S., additional, Dutton, Aaron A., additional, Elbaz, David, additional, Fazio, Giovanni G., additional, Filippenko, Alexei V., additional, Finkelstein, Steven L., additional, Frazer, Chris, additional, Gardner, Jonathan P., additional, Garnavich, Peter M., additional, Gawiser, Eric, additional, Gruetzbauch, Ruth, additional, Hartley, Will G., additional, Häussler, Boris, additional, Herrington, Jessica, additional, Hopkins, Philip F., additional, Huang, Jia-Sheng, additional, Jha, Saurabh W., additional, Johnson, Andrew, additional, Kartaltepe, Jeyhan S., additional, Khostovan, Ali A., additional, Kirshner, Robert P., additional, Lani, Caterina, additional, Lee, Kyoung-Soo, additional, Li, Weidong, additional, Madau, Piero, additional, McCarthy, Patrick J., additional, McIntosh, Daniel H., additional, McLure, Ross J., additional, McPartland, Conor, additional, Mobasher, Bahram, additional, Moreira, Heidi, additional, Mortlock, Alice, additional, Moustakas, Leonidas A., additional, Mozena, Mark, additional, Nandra, Kirpal, additional, Newman, Jeffrey A., additional, Nielsen, Jennifer L., additional, Niemi, Sami, additional, Noeske, Kai G., additional, Papovich, Casey J., additional, Pentericci, Laura, additional, Pope, Alexandra, additional, Primack, Joel R., additional, Ravindranath, Swara, additional, Reddy, Naveen A., additional, Renzini, Alvio, additional, Rix, Hans-Walter, additional, Robaina, Aday R., additional, Rosario, David J., additional, Rosati, Piero, additional, Salimbeni, Sara, additional, Scarlata, Claudia, additional, Siana, Brian, additional, Simard, Luc, additional, Smidt, Joseph, additional, Snyder, Diana, additional, Somerville, Rachel S., additional, Spinrad, Hyron, additional, Straughn, Amber N., additional, Telford, Olivia, additional, Teplitz, Harry I., additional, Trump, Jonathan R., additional, Vargas, Carlos, additional, Villforth, Carolin, additional, Wagner, Cory R., additional, Wandro, Pat, additional, Wechsler, Risa H., additional, Weiner, Benjamin J., additional, Wiklind, Tommy, additional, Wild, Vivienne, additional, Wilson, Grant, additional, Wuyts, Stijn, additional, and Yun, Min S., additional

Published
2011
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125. CANDELS: THE COSMIC ASSEMBLY NEAR-INFRARED DEEP EXTRAGALACTIC LEGACY SURVEY

Author

Grogin, Norman A., primary, Kocevski, Dale D., additional, Faber, S. M., additional, Ferguson, Henry C., additional, Koekemoer, Anton M., additional, Riess, Adam G., additional, Acquaviva, Viviana, additional, Alexander, David M., additional, Almaini, Omar, additional, Ashby, Matthew L. N., additional, Barden, Marco, additional, Bell, Eric F., additional, Bournaud, Frédéric, additional, Brown, Thomas M., additional, Caputi, Karina I., additional, Casertano, Stefano, additional, Cassata, Paolo, additional, Castellano, Marco, additional, Challis, Peter, additional, Chary, Ranga-Ram, additional, Cheung, Edmond, additional, Cirasuolo, Michele, additional, Conselice, Christopher J., additional, Cooray, Asantha Roshan, additional, Croton, Darren J., additional, Daddi, Emanuele, additional, Dahlen, Tomas, additional, Davé, Romeel, additional, de Mello, Duília F., additional, Dekel, Avishai, additional, Dickinson, Mark, additional, Dolch, Timothy, additional, Donley, Jennifer L., additional, Dunlop, James S., additional, Dutton, Aaron A., additional, Elbaz, David, additional, Fazio, Giovanni G., additional, Filippenko, Alexei V., additional, Finkelstein, Steven L., additional, Fontana, Adriano, additional, Gardner, Jonathan P., additional, Garnavich, Peter M., additional, Gawiser, Eric, additional, Giavalisco, Mauro, additional, Grazian, Andrea, additional, Guo, Yicheng, additional, Hathi, Nimish P., additional, Häussler, Boris, additional, Hopkins, Philip F., additional, Huang, Jia-Sheng, additional, Huang, Kuang-Han, additional, Jha, Saurabh W., additional, Kartaltepe, Jeyhan S., additional, Kirshner, Robert P., additional, Koo, David C., additional, Lai, Kamson, additional, Lee, Kyoung-Soo, additional, Li, Weidong, additional, Lotz, Jennifer M., additional, Lucas, Ray A., additional, Madau, Piero, additional, McCarthy, Patrick J., additional, McGrath, Elizabeth J., additional, McIntosh, Daniel H., additional, McLure, Ross J., additional, Mobasher, Bahram, additional, Moustakas, Leonidas A., additional, Mozena, Mark, additional, Nandra, Kirpal, additional, Newman, Jeffrey A., additional, Niemi, Sami-Matias, additional, Noeske, Kai G., additional, Papovich, Casey J., additional, Pentericci, Laura, additional, Pope, Alexandra, additional, Primack, Joel R., additional, Rajan, Abhijith, additional, Ravindranath, Swara, additional, Reddy, Naveen A., additional, Renzini, Alvio, additional, Rix, Hans-Walter, additional, Robaina, Aday R., additional, Rodney, Steven A., additional, Rosario, David J., additional, Rosati, Piero, additional, Salimbeni, Sara, additional, Scarlata, Claudia, additional, Siana, Brian, additional, Simard, Luc, additional, Smidt, Joseph, additional, Somerville, Rachel S., additional, Spinrad, Hyron, additional, Straughn, Amber N., additional, Strolger, Louis-Gregory, additional, Telford, Olivia, additional, Teplitz, Harry I., additional, Trump, Jonathan R., additional, van der Wel, Arjen, additional, Villforth, Carolin, additional, Wechsler, Risa H., additional, Weiner, Benjamin J., additional, Wiklind, Tommy, additional, Wild, Vivienne, additional, Wilson, Grant, additional, Wuyts, Stijn, additional, Yan, Hao-Jing, additional, and Yun, Min S., additional

Published
2011
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127. Recent progress on the KMOS multi-object integral-field spectrograph for ESO VLT

Author

Sharples, Ray, primary, Bender, Ralf, additional, Agudo Berbel, Alex, additional, Bennett, Richard, additional, Bezawada, Naidu, additional, Bouché, Nicolas, additional, Bramall, David, additional, Casali, Mark, additional, Cirasuolo, Michele, additional, Clark, Paul, additional, Cliffe, Mark, additional, Davies, Richard, additional, Davies, Roger, additional, Drory, Niv, additional, Dubbeldam, Marc, additional, Fairley, Alasdair, additional, Finger, Gert, additional, Genzel, Reinhard, additional, Haefner, Reinhold, additional, Hess, Achim, additional, Jeffers, Paul, additional, Lewis, Ian, additional, Montgomery, David, additional, Murray, John, additional, Muschielok, Bernard, additional, Förster Schreiber, Natascha, additional, Pirard, Jean, additional, Ramsay-Howat, Suzie, additional, Rees, Philip, additional, Richter, Josef, additional, Robertson, David, additional, Robson, Ian, additional, Rolt, Stephen, additional, Saglia, Roberto, additional, Schlichter, Joerg, additional, Tecza, Mathias, additional, Todd, Stephen, additional, Wegner, Michael, additional, and Wiezorrek, Erich, additional

Published
2010
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131. DISCOVERY OF A GIANT Lyα EMITTER NEAR THE REIONIZATION EPOCH

Author

Ouchi, Masami, primary, Ono, Yoshiaki, additional, Egami, Eiichi, additional, Saito, Tomoki, additional, Oguri, Masamune, additional, McCarthy, Patrick J., additional, Farrah, Duncan, additional, Kashikawa, Nobunari, additional, Momcheva, Ivelina, additional, Shimasaku, Kazuhiro, additional, Nakanishi, Kouichiro, additional, Furusawa, Hisanori, additional, Akiyama, Masayuki, additional, Dunlop, James S., additional, Mortier, Angela M. J., additional, Okamura, Sadanori, additional, Hayashi, Masao, additional, Cirasuolo, Michele, additional, Dressler, Alan, additional, Iye, Masanori, additional, Jarvis, Matt J., additional, Kodama, Tadayuki, additional, Martin, Crystal L., additional, McLure, Ross J., additional, Ohta, Kouji, additional, Yamada, Toru, additional, and Yoshida, Michitoshi, additional

Published
2009
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132. Exploring the infrared/radio correlation at high redshift

Author

Ibar, Edo, primary, Cirasuolo, Michele, additional, Ivison, Rob, additional, Best, Philip, additional, Smail, Ian, additional, Biggs, Andy, additional, Simpson, Chris, additional, Dunlop, Jim, additional, Almaini, Omar, additional, McLure, Ross, additional, Foucaud, Sebastien, additional, and Rawlings, Steve, additional

Published
2008
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136. Progress along the E-ELT instrumentation roadmap

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Ramsay, Suzanne, Casali, Mark, Cirasuolo, Michele, Egner, Sebastian, Gray, Peter, Gonzáles Herrera, Juan Carlos, Hammersley, Peter, Haupt, Christoph, Ives, Derek, Jochum, Lieselotte, Kasper, Markus, Kerber, Florian, Lewis, Steffan, Mainieri, Vincenzo, Manescau, Antonio, Marchetti, Enrico, Oberti, Sylvain, Padovani, Paolo, Schmid, Christian, Schimpelsberger, Johannes, Siebenmorgen, Ralf, Szecsenyi, Orsolya, Tamai, Roberto, and Vernet, Joël

Published
2016
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137. Implementation and performance of the metrology system for the multi-object optical and near-infrared spectrograph MOONS

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Drass, Holger, Vanzi, Leonardo, Torres-Torriti, Miguel, Dünner, Rolando, Shen, Tzu-Chiang, Belmar, Francisco, Dauvin, Lousie, Staig, Tomás, Antognini, Jonathan, Flores, Mauricio, Luco, Yerko, Béchet, Clémentine, Boettger, David, Beard, Steven, Montgomery, David, Watson, Stephen, Cabral, Alexandre, Hayati, Mahmoud, Abreu, Manuel, Rees, Phil, Cirasuolo, Michele, Taylor, William, and Fairley, Alasdair

Published
2016
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138. The E-ELT program status

Author

Hall, Helen J., Gilmozzi, Roberto, Marshall, Heather K., Tamai, Roberto, Cirasuolo, Michele, González, Juan Carlos, Koehler, Bertrand, and Tuti, Mauro

Published
2016
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139. Rest-frame ultraviolet spectra of massive galaxies at z ~ 3: evidence of high-velocity outflows.

Author

Karman, Wouter, Caputi, Karina I., Trager, Scott C., Almaini, Omar, and Cirasuolo, Michele

Subjects
ULTRAVIOLET spectra, GALAXY formation, GALACTIC redshift, ASTRONOMICAL observations, STELLAR mass
Abstract

Galaxy formation models invoke the presence of strong feedback mechanisms that regulate the growth of massive galaxies at high redshifts. Providing observational evidence of these processes is crucial to justify and improve these prescriptions. In this paper we aim to (1) confirm spectroscopically the redshifts of a sample of massive galaxies selected with photometric redshifts zphot > 2.5; (2) investigate the properties of their stellar and interstellar media; (3) detect the presence of outflows and measure their velocities. To achieve this, we analysed deep, high-resolution (R ≈ 2000) FORS2 rest-frame UV spectra for 11 targets. We confirmed that 9 out of 11 have spectroscopic redshifts zspec > 2.5. We also serendipitously found two mask fillers at redshift zspec > 2.5, which originally were assigned photometric redshifts 2.0 < zphot < 2.5. In the four highest quality spectra we derived outflow velocities by fitting the absorption line profiles with models including multiple dynamical components. We found strongly asymmetric, high-ionisation lines, from which we derived outflow velocities ranging between 480 kms−1 and 1518 km s−1. The two highest velocity outflows correspond to galaxies with active galactic nuclei (AGNs). We revised the spectral energy distribution fitting U-band through 8 μm photometry, including the analysis of a power-law component subtraction to identify the possible presence of AGNs. The revised stellar masses of all but one of our targets are >∼1010 M⊙, with four having stellar masses >5×1010 M⊙. Three galaxies have significant power-law components in their spectral energy distributions, indicating that they host AGNs. We conclude that massive galaxies are characterised by significantly higher velocity outflows than the typical Lyman-break galaxies at z ∼ 3. The incidence of high-velocity outflows (∼40% within our sample) is also much higher than among massive galaxies at z < 1, consistent with the powerful star formation and nuclear activity that most massive galaxies display at z > 2. [ABSTRACT FROM AUTHOR]

Published
2014
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140. MOONS – multi object spectroscopy for the VLT: overview and instrument integration update

Author

Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Gonzalez, Oscar, Cirasuolo, Michele, Taylor, William, Black, Martin, Rees, Philip, Bryson, Ian, Chittick, Stephen, Afonso, Jose, Lilly, Simon, Flores, Hector, Maiolino, Roberto, Oliva, Ernesto, Paltani, Stephane, Vanzi, Leonardo, Abreu, Manuel, Amans, Jean-Philippe, Atkinson, David, Beard, Steven, Belfiore, Andrea, Breen, Ciaran, Bayo, Amelia, Born, Andy, Cabral, Alexandre, Chapman, Lee, Cochrane, William, Coelho, João, Colling, Miriam, Conzelmann, Ralf, Dalessio, Francesco, Davidson, George, Delplancke-Ströbele, Françoise, Fisher, Martin, Forchi, Vincenzo, Franzetti, Paolo, Garilli, Bianca, Gargiulo, Adriana, Guinouard, Isabelle, Gutierrez, Pablo, Haigron, Régis, Hammersley, Peter, Ivanov, Valentin, Ives, Derek, Iwert, Olaf, King, David, Kovacz, Suzanne, Laporte, Philippe, Lee, David, Li Causi, Gianluca, Macleod, Alastair, Alvarez Mendez, Domingo, Oliveira, António, Palsa, Ralf, Parra, Manuel, Pedichini, Fernando, Peña, Vicente, Petr-Gotzens, Monika, Rodrigues, Myriam, Royer, Frédéric, Santos, Pedro, Sepulveda, Jorge, Sharman, Robyn, Shen, Tzu-Chiang, Sordet, Michael, Strachan, Jonathan, Tait, Graham, Tejeda, Alexis, Tozzi, Andrea, O'Malley, Norman, Waring, Chris, Watson, Stephen, Willemse, Bart, Gao, Xiaofeng, Yang, Yanbin, and Zoccali, Manuela

Published
2022
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141. THE UV LUMINOSITY FUNCTION OF STAR-FORMING GALAXIES VIA DROPOUT SELECTION AT REDSHIFTS z ~ 7 AND 8 FROM THE 2012 ULTRA DEEP FIELD CAMPAIGN.

Author

SCHENKER, MATTHEW A., ROBERTSON, BRANT E., ELLIS, RICHARD S., YOSHIAKI ONO, MCLURE, ROSS J., DUNLOP, JAMES S., KOEKEMOER, ANTON, BOWLER, REBECCA A. A., MASAMI OUCHI, CURTIS-LAKE, EMMA, ROGERS, ALEXANDER B., SCHNEIDER, EVAN, CHARLOT, STEPHANE, STARK, DANIEL P., FURLANETTO, STEVEN R., and CIRASUOLO, MICHELE

Subjects
STELLAR luminosity function, ULTRAVIOLET photometry, GALAXY formation, GALACTIC redshift, NEAR infrared spectroscopy
Abstract

We present a catalog of high-redshift star-forming galaxies selected to lie within the redshift range z ≃ 7-8 using the Ultra Deep Field 2012 (UDF12), the deepest near-infrared (near-IR) exposures yet taken with the Hubble Space Telescope (HST). As a result of the increased near-IR exposure time compared to previous HST imaging in this field, we probe ~0.65 (0.25) mag fainter in absolute UV magnitude, at z ~ 7 (8), which increases confidence in a measurement of the faint end slope of the galaxy luminosity function. Through a 0.7 mag deeper limit in the key F105W filter that encompasses or lies just longward of the Lyman break, we also achieve a much-refined color-color selection that balances high redshift completeness and a low expected contamination fraction. We improve the number of dropout-selected UDF sources to 47 at z ~ 7 and 27 at z ~ 8. Incorporating brighter archival and ground-based samples, we measure the z ≃ 7 UV luminosity function to an absolute magnitude limit of MUV = -17 and find a faint end Schechter slope of α = -1.87+0.18-0.17. Using a similar color-color selection at z ≃ 8 that takes our newly added imaging in the F140W filter into account, and incorporating archival data from the HIPPIES and BoRG campaigns, we provide a robust estimate of the faint end slope at z ≃ 8, α = -1.94+0.21-0.24. We briefly discuss our results in the context of earlier work and that derived using the same UDF12 data but with an independent photometric redshift technique. [ABSTRACT FROM AUTHOR]

Published
2013
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143. A large Hα survey at z = 2.23, 1.47, 0.84 and 0.40: the 11 Gyr evolution of star-forming galaxies from HiZELS★.

Author

Sobral, David, Smail, Ian, Best, Philip N., Geach, James E., Matsuda, Yuichi, Stott, John P., Cirasuolo, Michele, and Kurk, Jaron

Subjects
GALACTIC evolution, STAR formation, VERY Large Telescope (Chile), STELLAR luminosity function, STELLAR mass, ROBUST control, SURVEYS
Abstract

This paper presents new deep and wide narrow-band surveys undertaken with United Kingdom Infrared Telescope (UKIRT), Subaru and the Very Large Telescope (VLT), a unique combined effort to select large, robust samples of Hα star-forming galaxies at z = 0.40, 0.84, 1.47 and 2.23 (corresponding to look-back times of 4.2, 7.0, 9.2 and 10.6 Gyr) in a uniform manner over ∼2 deg2 in the Cosmological Evolution Survey and Ultra Deep Survey fields. The deep multi-epoch Hα surveys reach a matched 3σ flux limit of ≈3 M⊙ yr−1 out to z = 2.2 for the first time, while the wide area and the coverage over two independent fields allow us to greatly overcome cosmic variance and assemble by far the largest samples of Hα emitters. Catalogues are presented for a total of 1742, 637, 515 and 807 Hα emitters, robustly selected at z = 0.40, 0.84, 1.47 and 2.23, respectively, and used to determine the Hα luminosity function and its evolution. The faint-end slope of the Hα luminosity function is found to be α = −1.60 ± 0.08 over z = 0–2.23, showing no significant evolution. The characteristic luminosity of star-forming galaxies, L*Hα, evolves significantly as log L*Hα(z) = 0.45z + log L*z = 0. This is the first time Hα has been used to trace star formation activity with a single homogeneous survey at z = 0.4–2.23. Overall, the evolution seen with Hα is in good agreement with the evolution seen using inhomogeneous compilations of other tracers of star formation, such as far-infrared and ultraviolet, jointly pointing towards the bulk of the evolution in the last 11 Gyr being driven by a statistically similar star-forming population across cosmic time, but with a strong luminosity increase from z ∼ 0 to ∼2.2. Our uniform analysis allows us to derive the Hα star formation history (SFRH) of the Universe, showing a clear rise up to z ∼ 2.2, for which the simple parametrization log10ρSFR = −2.1(1 + z)−1 is valid over 80 per cent of the age of the Universe. The results reveal that both the shape and normalization of the Hα SFRH are consistent with the measurements of the stellar mass density growth, confirming that our Hα SFRH is tracing the bulk of the formation of stars in the Universe for z < 2.23. The star formation activity over the last ∼11 Gyr is responsible for producing ∼95 per cent of the total stellar mass density observed locally, with half of that being assembled in 2 Gyr between z = 1.2 and 2.2, and the other half in 8 Gyr (since z < 1.2). If the star formation rate density continues to decline with time in the same way as seen in the past ∼11 Gyr, then the stellar mass density of the Universe will reach a maximum which is only 5 per cent higher than the present-day value. [ABSTRACT FROM PUBLISHER]

Published
2013
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144. Star formation at z= 1.47 from HiZELS: an H α+[O ii] double-blind study★.

Author

Sobral, David, Best, Philip N., Matsuda, Yuichi, Smail, Ian, Geach, James E., and Cirasuolo, Michele

Subjects
STAR formation, BLIND experiment, INFRARED telescopes, STELLAR luminosity function, COMPARATIVE studies, STELLAR mass
Abstract

ABSTRACT This paper presents the results from the first wide and deep dual narrow-band survey to select Hα and [O ii] line emitters at z= 1.47 ± 0.02, exploiting synergies between the United Kingdom Infrared Telescope and the Subaru telescope by using matched narrow-band filters in the H and z′ bands. The Hα survey at z= 1.47 reaches a 3σ flux limit of FHα≈ 7 × 10−17 erg s−1 cm−2 (corresponding to a limiting star formation rate (SFR) in Hα of ≈7 M⊙ yr−1) and detects ≈200 Hα emitters over 0.7 deg2, while the much deeper [O ii] survey reaches an effective flux of ≈7 × 10−18 erg s−1 cm−2 (SFR in [O ii] of ∼1 M⊙ yr−1), detecting ≈1400 z= 1.47 [O ii] emitters in a matched comoving volume of ∼2.5 × 105 Mpc3. The combined survey results in the identification of 190 simultaneous Hα and [O ii] emitters at z= 1.47. Hα and [O ii] luminosity functions are derived and both are shown to evolve significantly from z∼ 0 in a consistent way. The SFR density of the Universe at z= 1.47 is evaluated, with the Hα analysis yielding ρSFR= 0.16 ± 0.05 M⊙ yr−1 Mpc−3 and the [O ii] analysis ρSFR= 0.17 ± 0.04 M⊙ yr−1 Mpc−3. The measurements are combined with other studies, providing a self-consistent measurement of the star formation history of the Universe over the last ∼11 Gyr. By using a large comparison sample at z∼ 0.1, derived from the Sloan Digital Sky Survey (SDSS), [O ii]/Hα line ratios are calibrated as probes of dust extinction. Hα emitters at z∼ 1.47 show on average AHα≈ 1 mag, the same as found by SDSS in the local Universe. It is shown that although dust extinction correlates with SFR, the relation evolves by about ∼0.5 mag from z∼ 1.5 to ∼0, with local relations overpredicting the dust extinction corrections at high z by that amount. Stellar mass is found to be a much more fundamental extinction predictor, with the same relation between mass and dust extinction being valid at both z∼ 0 and ∼1.5, at least for low and moderate stellar masses. The evolution in the extinction-SFR relation is therefore interpreted as being due to the evolution in median specific SFRs over cosmic time. Dust extinction corrections as a function of optical colours are also derived and shown to be broadly valid at both z∼ 0 and ∼1.5, offering simpler mechanisms for estimating extinction in moderately star-forming systems over the last ∼9 Gyr. [ABSTRACT FROM AUTHOR]

Published
2012
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145. The dependence of star formation activity on environment and stellar mass at z∼ 1 from the HiZELS-Hα survey.

Author

Sobral, David, Best, Philip N., Smail, Ian, Geach, James E., Cirasuolo, Michele, Garn, Timothy, and Dalton, Gavin B.

Subjects
STAR formation, STELLAR mass, POTENTIAL theory (Physics), STAR clusters, GALAXY clusters, STAR observations
Abstract

This paper presents an environment and stellar mass study of a large sample of star-forming Hα emitters at from the High- z Emission Line Survey (HiZELS), over 1.3 deg split over two fields (COSMOS and UKIDSS UDS). By taking advantage of a truly panoramic coverage of a wide range of environments, from the field to a rich cluster, it is shown that both stellar mass and environment play crucial roles in determining the properties of star-forming galaxies. Specific star formation rates (sSFRs) decline with stellar mass in all environments, and the fraction of Hα star-forming galaxies declines sharply from per cent for galaxies with masses around 10 M to effectively zero above , confirming that mass-downsizing is generally in place by . The fraction of star-forming galaxies is also found to fall sharply as a function of local environmental density from per cent in the field to approaching zero at rich group/cluster densities. When star formation does occur in such high density regions, it is found to be mostly dominated by potential mergers and, indeed, if only non-merging star-forming galaxies are considered, then the environment and mass trends are even stronger and are qualitatively similar at all masses and environments, respectively, as in the local Universe. The median SFR of Hα emitters at is found to increase with density for both field and intermediate (group or cluster outskirts) densities; this is clearly seen as a change in the faint-end slope of the Hα luminosity function from steep , in poor fields, to shallow in groups and clusters. Interestingly, the relation between median SFR and environment is only found for low- to moderate-mass galaxies (with stellar masses below about M, and is not seen for the most massive star-forming galaxies. Overall, these observations provide a detailed view over a sufficiently large range of mass and environment to reconcile previous observational claims: stellar mass is the primary predictor of star formation activity at , but the environment, while initially enhancing the median SFR of (lower mass) star-forming galaxies, is ultimately responsible for suppressing star formation activity in all galaxies above surface densities of 10-30 Mpc (group and cluster environments). [ABSTRACT FROM AUTHOR]

Published
2011
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146. The clustering and evolution of Hα emitters at z ∼ 1 from HiZELS.

Author

Sobral, David, Best, Philip N., Geach, James E., Smail, Ian, Cirasuolo, Michele, Garn, Timothy, Dalton, Gavin B., and Kurk, Jaron

Subjects
GALAXY clusters, STELLAR luminosity function, METAPHYSICAL cosmology, HALOS (Meteorology), ASTROPHYSICS, STAR clusters
Abstract

The clustering properties of a well-defined sample of 734 Hα emitters at , obtained as part of the Hi- z Emission Line Survey, are investigated. The spatial correlation function of these Hα emitters is very well described by the power-law , with a real-space correlation, r0, of . The correlation length r0 increases strongly with Hα luminosity , from for the most quiescent galaxies [star formation rates (SFRs) of ] up to for the brightest galaxies in Hα. The correlation length also increases with increasing rest-frame K-band luminosity, but the correlation maintains its full statistical significance at fixed . At , star-forming galaxies classified as irregulars or mergers are much more clustered than discs and non-mergers, respectively; however, once the samples are matched in and , the differences vanish, implying that the clustering is independent of morphological type at just as in the local Universe. The typical Hα emitters found at reside in dark matter haloes of , but those with the highest SFRs reside in more massive haloes of . The results are compared with those of Hα surveys at different redshifts: although the break of the Hα luminosity function evolves by a factor of ∼30 from to 2.23, if the Hα luminosities at each redshift are scaled by then the correlation lengths indicate that, independently of cosmic time, galaxies with the same are found in dark matter haloes of similar masses. This not only confirms that the star formation efficiency in high redshift haloes is higher than locally but also suggests a fundamental connection between the strong negative evolution of since and the quenching of star formation in galaxies residing within dark matter haloes significantly more massive than at any given epoch. [ABSTRACT FROM AUTHOR]

Published
2010
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147. Obscured star formation at z= 0.84 with HiZELS.

Author

Garn, Timothy, Sobral, David, Best, Philip N., Geach, James E., Smail, Ian, Cirasuolo, Michele, Dalton, Gavin B., Dunlop, James S., McLure, Ross J., and Farrah, Duncan

Subjects
STAR formation, GALAXIES, EMISSIONS (Air pollution), DENSITY, TELESCOPES
Abstract

We compare Hα, ultraviolet (UV) and infrared (IR) indicators of star formation rate (SFR) for a well-defined sample of emission-line galaxies from the High- z Emission Line Survey (HiZELS). Using emission-line, optical, IR, radio and X-ray diagnostics, we estimate that 5–11 per cent of Hα emitters at this redshift are active galactic nuclei. We detect 35 per cent of the Hα emitters individually at 24 μm, and stack the locations of star-forming emitters on deep 24-μm Spitzer Space Telescope images in order to calculate the typical SFRs of our Hα-emitting galaxies. These are compared to the observed Hα line fluxes in order to estimate the extinction at , and we find a significant increase in dust extinction for galaxies with higher SFRs. We demonstrate that the relationship between SFR and extinction found in the local Universe is also suitable for our high-redshift galaxies, and attribute the overall increase in the typical dust extinction for galaxies to an increase in the average SFR, rather than to a change in dust properties at higher redshift. We calculate the UV extinction, and find a similar dependence on SFR to the Hα results, but no evidence for a 2175 Å UV bump in the dust attenuation law for high-redshift star-forming galaxies. By comparing Hα and UV indicators, we calculate the conversion between the dust attenuation of nebular and stellar radiation, γ, and show that . The extinction/SFR relationship is shown to be applicable to galaxies with a range of morphologies and bulge-to-disc ratios, to both merging and non-merging galaxies, and to galaxies within high- and low-density environments, implying that it is a fundamental property of star-forming regions. In order to allow future studies to easily correct for a SFR-dependent amount of dust extinction, we present an equation to predict the extinction of a galaxy, based solely on its observed Hα luminosity, and use this to recalculate the Hα luminosity function and SFR density at . [ABSTRACT FROM AUTHOR]

Published
2010
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149. Performance of the K-band multi-object spectrograph (KMOS) on the ESO VLT

Author

Ramsay, Suzanne K., McLean, Ian S., Takami, Hideki, Sharples, Ray, Bender, Ralf, Agudo Berbel, Alex, Bennett, Richard, Bezawada, Naidu, Castillo, Roberto, Cirasuolo, Michele, Clark, Paul, Davidson, George, Davies, Richard, Davies, Roger, Dubbeldam, Marc, Fairley, Alasdair, Finger, Gert, Schreiber, Natascha F., Genzel, Reinhard, Haefner, Reinhold, Hess, Achim, Jung, Ives, Lewis, Ian, Montgomery, David, Murray, John, Muschielok, Bernard, Pirard, Jeff, Ramsay, Suzanne, Rees, Philip, Richter, Josef, Robertson, David, Robson, Ian, Rolt, Stephen, Saglia, Roberto, Saviane, Ivo, Schlichter, Joerg, Schmidtobreik, Linda, Segovia, Alex, Smette, Alain, Tecza, Matthias, Todd, Stephen, Wegner, Michael, and Wiezorrek, Erich

Published
2014
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150. The ESO Extremely Large Telescope instrumentation programme.

Author

Ellis, Simon C., d'Orgeville, Céline, Ramsay, Suzanne, Amico, Paola, Bezawada, Naidu, Cirasuolo, Michele, Derie, Frédéric, Egner, Sebastian, George, Elizabeth, Gonté, Frédéric, González Herrera, Juan Carlos, Hammersley, Peter, Haupt, Christoph, Heijmans, Jeroen, Ives, Derek, Jakob, Gerd, Kerber, Florian, Koehler, Bertrand, Mainieri, Vincenzo, and Manescau, Antonio

Published
2019
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