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281 results on '"Stiavelli M."'

253. The JWST Science Operations Design Reference Mission

Author

Larry Petro, Balzano, V., Boia, J., Gardner, J. P., Giuliano, M., Jones, D., Kinzel, W., Lucas, R., Meixner, M., Purves, L., Rager, R., Regan, M., Roman, A., Royle, P., Rumpl, W., Sivaramakrishnan, A., Soderblom, D., Stiavelli, M., Stys, J., Valenti, J., and Whitman, R.

254. The Hubble Origins Probe (HOP): Mission Overview

Author

Ford, H., Luciana Bianchi, Heckman, T., Moos, W., Norman, C., Baum, S., Giavalisco, M., Nota, A., Riess, A., Sahu, K., Somerville, R., Stiavelli, M., Crocker, J., Woodruff, R., Bacon, R., Ebbetts, D., Freeman, K., Green, J., Shull, M., Hutchings, J., Silk, J., Steidel, C., Tsuneta, S., and Zeeuw, T.

257. VizieR Online Data Catalog: GOODS initial results (Giavalisco+, 2004)

Author

Giavalisco, M., Ferguson, H. C., Koekemoer, A. M., Dickinson, M., Alexander, D. M., Bauer, F. E., Bergeron, J., Biagetti, C., Brandt, W. N., Casertano, S., Cesarsky, C., Chatzichristou, E., Conselice, C., Cristiani, S., Da Costa, L., Dahlen, T., Mello, D., Eisenhardt, P., Erben, T., Fall, S. M., Fassnacht, C., Fosbury, R., Fruchter, A., Gardner, J. P., Grogin, N., Hook, R. N., Hornschemeier, A. E., Idzi, R., Jogee, S., Kretchmer, C., Laidler, V., Lee, K. S., Livio, M., Lucas, R., Madau, P., Mobasher, B., Moustakas, L. A., Nonino, M., Padovani, P., Papovich, C., Park, Y., Ravindranath, S., Renzini, A., Richardson, M., Riess, A., Rosati, P., Schirmer, M., Schreier, E., Somerville, R. S., Spinrad, H., Stern, D., Stiavelli, M., Strolger, L., Meg Urry, Vandame, B., Williams, R., and Wolf, C.

259. The Grism Spectroscopy of the Hubble Ultra Deep Fields

Author

Xu, C., Pirzkal, N., Malhotra, S., Rhoads, J., Anton Koekemoer, Ferguson, H., Moustakas, L., Panagia, N., Stiavelli, M., Walsh, J., Daddi, E., Kuemel, M., Cimatti, A., Vernet, J., Windhorst, R., Gardner, J., Gronwall, C., Haiman, Z., Pasquali, A., Tsvetanov, Z., and Yan, H.

261. Advanced Data Products for the Next Decade

Author

Castertano, S., Anderson, J., Thomas Brown, Stiavelli, M., White, R. L., Fabbiano, G., Evans, I. N., Mcdowell, J., Rots, A., Schade, D., Borne, K. D., Madore, B. F., and Rosati, P.

262. Hubble Origins Probe(HOP): Science Overview

Author

Norman, C., Luciana Bianchi, Ford, H., Heckman, T., Moos, W., Giavalisco, M., Nota, A., Riess, A., Sahu, K., Somerville, R., Stiavelli, M., Baum, S., Crocker, J., Woodruff, R., Ebbets, D., Green, J., Shull, M., Steidel, C., Silk, J., Hutchings, J., Tsuneta, S., Freeman, K., Bacon, R., and Zeeuw, T.

263. Supermassive black hole mass measurements for NGC 1300 and 2748 based on Hubble Space Telescope emission-line gas kinematics

Author

Atkinson, J. W., Collett, J. L., Marconi, A., Axon, D. J., Alonso-Herrero, A., Batcheldor, D., Binney, J. J., Capetti, A., Carollo, C. M., Dressel, L., Ford, H., Gerssen, J., Hughes, M. A., Macchetto, D., Maciejewski, W., Merrifield, M. R., Scarlata, C., Sparks, W., Stiavelli, M., Tsvetanov, Z., van Der Marel, R. P., Atkinson, J. W., Collett, J. L., Marconi, A., Axon, D. J., Alonso-Herrero, A., Batcheldor, D., Binney, J. J., Capetti, A., Carollo, C. M., Dressel, L., Ford, H., Gerssen, J., Hughes, M. A., Macchetto, D., Maciejewski, W., Merrifield, M. R., Scarlata, C., Sparks, W., Stiavelli, M., Tsvetanov, Z., and van Der Marel, R. P.

Abstract

We present Space Telescope Imaging Spectrograph emission-line spectra of the central regions of the spiral galaxies NGC 1300 and 2748. From the derived kinematics of the nuclear gas we have found evidence for central supermassive black holes in both galaxies. The estimated masses of the black holes in NGC 1300 and 2748 are (6.6+6.3−3.2) × 107 and (4.4+3.5−3.6) × 107 M⊙, respectively (both at the 95 per cent confidence level). These two black hole mass estimates contribute to the poorly sampled low-mass end of the nuclear black hole mass spectrum

267. MEASUREMENT OF GALAXY CLUSTERING AT z ∼ 7.2 AND THE EVOLUTION OF GALAXY BIAS FROM 3.8 < z < 8 IN THE XDF, GOODS-S, AND GOODS-N.

Author

Barone-Nugent, R. L., Trenti, M., Wyithe, J. S. B., Bouwens, R. J., Oesch, P. A., Illingworth, G. D., Carollo, C. M., Su, J., Stiavelli, M., Labbe, I., and van Dokkum, P. G.

Subjects
GALACTIC redshift, METAPHYSICAL cosmology, GALAXIES, STELLAR luminosity function, HALOS (Meteorology)
Abstract

Lyman-break galaxy (LBG) samples observed during reionization (z ≳ 6) with the Hubble Space Telescope's Wide Field Camera 3 are reaching sizes sufficient to characterize their clustering properties. Using a combined catalog from the Hubble eXtreme Deep Field and CANDELS surveys, containing N = 743 LBG candidates at z ⩾ 6.5 at a mean redshift of , we detect a clear clustering signal in the angular correlation function (ACF) at ≳ 4σ, corresponding to a real-space correlation length cMpc. The derived galaxy bias is that of dark matter halos of at z = 7.2, and highlights that galaxies below the current detection limit (MAB ∼ –17.7) are expected in lower-mass halos (M ∼ 108-1010.5 ). We compute the ACF of LBGs at z ∼ 3.8 – z ∼ 5.9 in the same surveys. A trend of increasing bias is found from (b ∼ 3.0) to (b ∼ 8.6), broadly consistent with galaxies at fixed luminosity being hosted in dark matter halos of similar mass at 4 ≲ z ≲ 6, followed by a slight rise in halo masses at z ≳ 7 (∼2σ confidence). Separating the data at the median luminosity of the sample (MUV = –19.4) shows higher clustering at for bright galaxies (cMpc, ) compared to faint galaxies (cMpc, ) implying a constant mass-to-light ratio . A similar trend is present in the sample with larger uncertainty. Finally, our bias measurements allow us to investigate the fraction of dark matter halos hosting UV-bright galaxies (the duty cycle, εDC). At values near unity are preferred, which may be explained by the shortened halo assembly time at high redshift. [ABSTRACT FROM AUTHOR]

Published
2014
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268. THE BRIGHTEST OF REIONIZING GALAXIES SURVEY: CONSTRAINTS ON THE BRIGHT END OF THE z ∼ 8 LUMINOSITY FUNCTION.

Author

Bradley, L. D., Trenti, M., Oesch, P. A., Stiavelli, M., Treu, T., Bouwens, R. J., Shull, J. M., Holwerda, B. W., and Pirzkal, N.

Subjects
GALACTIC magnitudes, ASTRONOMICAL photometry, ULTRAVIOLET astronomy, STELLAR luminosity function
Abstract

We report the discovery of 33 Lyman-break galaxy candidates at z ∼ 8 detected in Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging as part of the Brightest of Reionizing Galaxies (BoRG) pure-parallel survey. The ongoing BoRG survey currently has the largest area (274 arcmin2) with Y098 (or Y105), J125, and H160 band coverage needed to search for z ∼ 8 galaxies, about three times the current CANDELS area, and slightly larger than what will be the final CANDELS wide component with Y105 data (required to select z ∼ 8 sources). Our sample of 33 relatively bright Y098-dropout galaxies have J125-band magnitudes between 25.5 and 27.4 mag. This is the largest sample of bright (J125 ≲ 27.4) z ∼ 8 galaxy candidates presented to date. Combining our data set with the Hubble Ultra-Deep Field data set, we constrain the rest-frame ultraviolet galaxy luminosity function at z ∼ 8 over the widest dynamic range currently available. The combined data sets are well fitted by a Schechter function, i.e., , without evidence for an excess of sources at the bright end. At 68% confidence, for h = 0.7 we derive ϕ* = (4.3+3.5–2.1) × 10–4 Mpc–3, M* = –20.26+0.29–0.34, and a very steep faint-end slope α = –1.98+0.23–0.22. While the best-fit parameters still have a strong degeneracy, especially between ϕ* and M*, our improved coverage at the bright end has reduced the uncertainty of the faint-end power-law slope at z ∼ 8 compared to the best previous determination at ±0.4. With a future expansion of the BoRG survey, combined with planned ultradeep WFC3/IR observations, it will be possible to further reduce this uncertainty and clearly demonstrate the steepening of the faint-end slope compared to measurements at lower redshift, thereby confirming the key role played by small galaxies in the reionization of the universe. [ABSTRACT FROM AUTHOR]

Published
2012
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270. Evidence for a Massive Poststarburst Galaxy at z ~ 6.5.

Author

Mobasher, B., Dickinson, M., Ferguson, H. C., Giavalisco, M., Wiklind, T., Stark, D., Ellis, R. S., Fall, S. M., Grogin, N. A., Moustakas, L. A., Panagia, N., Sosey, M., Stiavelli, M., Bergeron, E., Casertano, S., Ingraham, P., Koekemoer, A., Labbé, I., Livio, M., and Rodgers, B.

Published
2005
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275. The Science Performance of JWST as Characterized in Commissioning

Author

Jane Rigby, Marshall Perrin, Michael McElwain, Randy Kimble, Scott Friedman, Matt Lallo, René Doyon, Lee Feinberg, Pierre Ferruit, Alistair Glasse, Marcia Rieke, George Rieke, Gillian Wright, Chris Willott, Knicole Colon, Stefanie Milam, Susan Neff, Christopher Stark, Jeff Valenti, Jim Abell, Faith Abney, Yasin Abul-Huda, D. Scott Acton, Evan Adams, David Adler, Jonathan Aguilar, Nasif Ahmed, Loïc Albert, Stacey Alberts, David Aldridge, Marsha Allen, Martin Altenburg, Javier Álvarez-Márquez, Catarina Alves de Oliveira, Greg Andersen, Harry Anderson, Sara Anderson, Ioannis Argyriou, Amber Armstrong, Santiago Arribas, Etienne Artigau, Amanda Arvai, Charles Atkinson, Gregory Bacon, Thomas Bair, Kimberly Banks, Jaclyn Barrientes, Bruce Barringer, Peter Bartosik, William Bast, Pierre Baudoz, Thomas Beatty, Katie Bechtold, Tracy Beck, Eddie Bergeron, Matthew Bergkoetter, Rachana Bhatawdekar, Stephan Birkmann, Ronald Blazek, Claire Blome, Anthony Boccaletti, Torsten Böker, John Boia, Nina Bonaventura, Nicholas Bond, Kari Bosley, Ray Boucarut, Matthew Bourque, Jeroen Bouwman, Gary Bower, Charles Bowers, Martha Boyer, Larry Bradley, Greg Brady, Hannah Braun, David Breda, Pamela Bresnahan, Stacey Bright, Christopher Britt, Asa Bromenschenkel, Brian Brooks, Keira Brooks, Bob Brown, Matthew Brown, Patricia Brown, Andy Bunker, Matthew Burger, Howard Bushouse, Steven Cale, Alex Cameron, Peter Cameron, Alicia Canipe, James Caplinger, Francis Caputo, Mihai Cara, Larkin Carey, Stefano Carniani, Maria Carrasquilla, Margaret Carruthers, Michael Case, Riggs Catherine, Don Chance, George Chapman, Stéphane Charlot, Brian Charlow, Pierre Chayer, Bin Chen, Brian Cherinka, Sarah Chichester, Zack Chilton, Taylor Chonis, Mark Clampin, Charles Clark, Kerry Clark, Dan Coe, Benee Coleman, Brian Comber, Tom Comeau, Dennis Connolly, James Cooper, Rachel Cooper, Eric Coppock, Matteo Correnti, Christophe Cossou, Alain Coulais, Laura Coyle, Misty Cracraft, Mirko Curti, Steven Cuturic, Katherine Davis, Michael Davis, Bruce Dean, Amy DeLisa, Wim deMeester, Nadia Dencheva, Nadezhda Dencheva, Joseph DePasquale, Jeremy Deschenes, Örs Hunor Detre, Rosa Diaz, Dan Dicken, Audrey DiFelice, Matthew Dillman, William Dixon, Jesse Doggett, Tom Donaldson, Rob Douglas, Kimberly DuPrie, Jean Dupuis, John Durning, Nilufar Easmin, Weston Eck, Chinwe Edeani, Eiichi Egami, Ralf Ehrenwinkler, Jonathan Eisenhamer, Michael Eisenhower, Michelle Elie, James Elliott, Kyle Elliott, Tracy Ellis, Michael Engesser, Nestor Espinoza, Odessa Etienne, Mireya Etxaluze, Patrick Falini, Matthew Feeney, Malcolm Ferry, Joseph Filippazzo, Brian Fincham, Mees Fix, Nicolas Flagey, Michael Florian, Jim Flynn, Erin Fontanella, Terrance Ford, Peter Forshay, Ori Fox, David Franz, Henry Fu, Alexander Fullerton, Sergey Galkin, Anthony Galyer, Macarena García Marín, Jonathan P. Gardner, Lisa Gardner, Dennis Garland, Bruce Garrett, Danny Gasman, Andras Gaspar, Daniel Gaudreau, Peter Gauthier, Vincent Geers, Paul Geithner, Mario Gennaro, Giovanna Giardino, Julien Girard, Mark Giuliano, Kirk Glassmire, Adrian Glauser, Stuart Glazer, John Godfrey, David Golimowski, David Gollnitz, Fan Gong, Shireen Gonzaga, Michael Gordon, Karl Gordon, Paul Goudfrooij, Thomas Greene, Matthew Greenhouse, Stefano Grimaldi, Andrew Groebner, Timothy Grundy, Pierre Guillard, Irvin Gutman, Kong Q. Ha, Peter Haderlein, Andria Hagedorn, Kevin Hainline, Craig Haley, Maryam Hami, Forrest Hamilton, Heidi Hammel, Carl Hansen, Tom Harkins, Michael Harr, Jessica Hart, Quyen Hart, George Hartig, Ryan Hashimoto, Sujee Haskins, William Hathaway, Keith Havey, Brian Hayden, Karen Hecht, Chris Heller-Boyer, Caroline Henriques, Alaina Henry, Karl Hermann, Scarlin Hernandez, Brigette Hesman, Brian Hicks, Bryan Hilbert, Dean Hines, Melissa Hoffman, Sherie Holfeltz, Bryan J. Holler, Jennifer Hoppa, Kyle Hott, Joseph M. Howard, Rick Howard, Alexander Hunter, David Hunter, Brendan Hurst, Bernd Husemann, Leah Hustak, Luminita Ilinca Ignat, Garth Illingworth, Sandra Irish, Wallace Jackson, Amir Jahromi, Peter Jakobsen, LeAndrea James, Bryan James, William Januszewski, Ann Jenkins, Hussein Jirdeh, Phillip Johnson, Timothy Johnson, Vicki Jones, Ron Jones, Danny Jones, Olivia Jones, Ian Jordan, Margaret Jordan, Sarah Jurczyk, Alden Jurling, Catherine Kaleida, Phillip Kalmanson, Jens Kammerer, Huijo Kang, Shaw-Hong Kao, Diane Karakla, Patrick Kavanagh, Doug Kelly, Sarah Kendrew, Herbert Kennedy, Deborah Kenny, Ritva Keski-kuha, Charles Keyes, Richard Kidwell, Wayne Kinzel, Jeff Kirk, Mark Kirkpatrick, Danielle Kirshenblat, Pamela Klaassen, Bryan Knapp, J. Scott Knight, Perry Knollenberg, Robert Koehler, Anton Koekemoer, Aiden Kovacs, Trey Kulp, Nimisha Kumari, Mark Kyprianou, Stephanie La Massa, Aurora Labador, Alvaro Labiano, Pierre-Olivier Lagage, Charles-Philippe Lajoie, Matthew Lallo, May Lam, Tracy Lamb, Scott Lambros, Richard Lampenfield, James Langston, Kirsten Larson, David Law, Jon Lawrence, David Lee, Jarron Leisenring, Kelly Lepo, Michael Leveille, Nancy Levenson, Marie Levine, Zena Levy, Dan Lewis, Hannah Lewis, Mattia Libralato, Paul Lightsey, Miranda Link, Lily Liu, Amy Lo, Alexandra Lockwood, Ryan Logue, Chris Long, Douglas Long, Charles Loomis, Marcos Lopez-Caniego, Jose Lorenzo Alvarez, Jennifer Love-Pruitt, Adrian Lucy, Nora Luetzgendorf, Peiman Maghami, Roberto Maiolino, Melissa Major, Sunita Malla, Eliot Malumuth, Elena Manjavacas, Crystal Mannfolk, Amanda Marrione, Anthony Marston, André Martel, Marc Maschmann, Gregory Masci, Michaela Masciarelli, Michael Maszkiewicz, John Mather, Kenny McKenzie, Brian McLean, Matthew McMaster, Katie Melbourne, Marcio Meléndez, Michael Menzel, Kaiya Merz, Michele Meyett, Luis Meza, Cherie Miskey, Karl Misselt, Christopher Moller, Jane Morrison, Ernie Morse, Harvey Moseley, Gary Mosier, Matt Mountain, Julio Mueckay, Michael Mueller, Susan Mullally, Jess Murphy, Katherine Murray, Claire Murray, David Mustelier, James Muzerolle, Matthew Mycroft, Richard Myers, Kaila Myrick, Shashvat Nanavati, Elizabeth Nance, Omnarayani Nayak, Bret Naylor, Edmund Nelan, Bryony Nickson, Alethea Nielson, Maria Nieto-Santisteban, Nikolay Nikolov, Alberto Noriega-Crespo, Brian O’Shaughnessy, Brian O’Sullivan, William Ochs, Patrick Ogle, Brenda Oleszczuk, Joseph Olmsted, Shannon Osborne, Richard Ottens, Beverly Owens, Camilla Pacifici, Alyssa Pagan, James Page, Sang Park, Keith Parrish, Polychronis Patapis, Lee Paul, Tyler Pauly, Cheryl Pavlovsky, Andrew Pedder, Matthew Peek, Maria Pena-Guerrero, Konstantin Penanen, Yesenia Perez, Michele Perna, Beth Perriello, Kevin Phillips, Martin Pietraszkiewicz, Jean-Paul Pinaud, Norbert Pirzkal, Joseph Pitman, Aidan Piwowar, Vera Platais, Danielle Player, Rachel Plesha, Joe Pollizi, Ethan Polster, Klaus Pontoppidan, Blair Porterfield, Charles Proffitt, Laurent Pueyo, Christine Pulliam, Brian Quirt, Irma Quispe Neira, Rafael Ramos Alarcon, Leah Ramsay, Greg Rapp, Robert Rapp, Bernard Rauscher, Swara Ravindranath, Timothy Rawle, Michael Regan, Timothy A. Reichard, Carl Reis, Michael E. Ressler, Armin Rest, Paul Reynolds, Timothy Rhue, Karen Richon, Emily Rickman, Michael Ridgaway, Christine Ritchie, Hans-Walter Rix, Massimo Robberto, Gregory Robinson, Michael Robinson, Orion Robinson, Frank Rock, David Rodriguez, Bruno Rodriguez Del Pino, Thomas Roellig, Scott Rohrbach, Anthony Roman, Fred Romelfanger, Perry Rose, Anthony Roteliuk, Marc Roth, Braden Rothwell, Neil Rowlands, Arpita Roy, Pierre Royer, Patricia Royle, Chunlei Rui, Peter Rumler, Joel Runnels, Melissa Russ, Zafar Rustamkulov, Grant Ryden, Holly Ryer, Modhumita Sabata, Derek Sabatke, Elena Sabbi, Bridget Samuelson, Benjamin Sapp, Bradley Sappington, B. Sargent, Arne Sauer, Silvia Scheithauer, Everett Schlawin, Joseph Schlitz, Tyler Schmitz, Analyn Schneider, Jürgen Schreiber, Vonessa Schulze, Ryan Schwab, John Scott, Kenneth Sembach, Clare Shanahan, Bryan Shaughnessy, Richard Shaw, Nanci Shawger, Christopher Shay, Evan Sheehan, Sharon Shen, Allan Sherman, Bernard Shiao, Hsin-Yi Shih, Irene Shivaei, Matthew Sienkiewicz, David Sing, Marco Sirianni, Anand Sivaramakrishnan, Joy Skipper, G. C. Sloan, Christine Slocum, Steven Slowinski, Erin Smith, Eric Smith, Denise Smith, Corbett Smith, Gregory Snyder, Warren Soh, Sangmo Tony Sohn, Christian Soto, Richard Spencer, Scott Stallcup, John Stansberry, Carl Starr, Elysia Starr, Alphonso Stewart, Massimo Stiavelli, Amber Straughn, David Strickland, Jeff Stys, Francis Summers, Fengwu Sun, Ben Sunnquist, Daryl Swade, Michael Swam, Robert Swaters, Robby Swoish, Joanna M. Taylor, Rolanda Taylor, Maurice Te Plate, Mason Tea, Kelly Teague, Randal Telfer, Tea Temim, Deepashri Thatte, Christopher Thompson, Linda Thompson, Shaun Thomson, Tuomo Tikkanen, William Tippet, Connor Todd, Sharon Toolan, Hien Tran, Edwin Trejo, Justin Truong, Chris Tsukamoto, Samuel Tustain, Harrison Tyra, Leonardo Ubeda, Kelli Underwood, Michael Uzzo, Julie Van Campen, Thomas Vandal, Bart Vandenbussche, Begoña Vila, Kevin Volk, Glenn Wahlgren, Mark Waldman, Chanda Walker, Michel Wander, Christine Warfield, Gerald Warner, Matthew Wasiak, Mitchell Watkins, Andrew Weaver, Mark Weilert, Nick Weiser, Ben Weiss, Sarah Weissman, Alan Welty, Garrett West, Lauren Wheate, Elizabeth Wheatley, Thomas Wheeler, Rick White, Kevin Whiteaker, Paul Whitehouse, Jennifer Whiteleather, William Whitman, Christina Williams, Christopher Willmer, Scott Willoughby, Andrew Wilson, Gregory Wirth, Emily Wislowski, Erin Wolf, David Wolfe, Schuyler Wolff, Bill Workman, Ray Wright, Carl Wu, Rai Wu, Kristen Wymer, Kayla Yates, Christopher Yeager, Jared Yeates, Ethan Yerger, Jinmi Yoon, Alice Young, Susan Yu, Dean Zak, Peter Zeidler, Julia Zhou, Thomas Zielinski, Cristian Zincke, Stephanie Zonak, Rigby, J., Perrin, M., Mcelwain, M., Kimble, R., Friedman, S., Lallo, M., Doyon, R., Feinberg, L., Ferruit, P., Glasse, A., Rieke, M., Rieke, G., Wright, G., Willott, C., Colon, K., Milam, S., Neff, S., Stark, C., Valenti, J., Abell, J., Abney, F., Abul-Huda, Y., Scott Acton, D., Adams, E., Adler, D., Aguilar, J., Ahmed, N., Albert, L., Alberts, S., Aldridge, D., Allen, M., Altenburg, M., Alvarez-Marquez, J., Alves de Oliveira, C., Andersen, G., Anderson, H., Anderson, S., Argyriou, I., Armstrong, A., Arribas, S., Artigau, E., Arvai, A., Atkinson, C., Bacon, G., Bair, T., Banks, K., Barrientes, J., Barringer, B., Bartosik, P., Bast, W., Baudoz, P., Beatty, T., Bechtold, K., Beck, T., Bergeron, E., Bergkoetter, M., Bhatawdekar, R., Birkmann, S., Blazek, R., Blome, C., Boccaletti, A., Boker, T., Boia, J., Bonaventura, N., Bond, N., Bosley, K., Boucarut, R., Bourque, M., Bouwman, J., Bower, G., Bowers, C., Boyer, M., Bradley, L., Brady, G., Braun, H., Breda, D., Bresnahan, P., Bright, S., Britt, C., Bromenschenkel, A., Brooks, B., Brooks, K., Brown, B., Brown, M., Brown, P., Bunker, A., Burger, M., Bushouse, H., Cale, S., Cameron, A., Cameron, P., Canipe, A., Caplinger, J., Caputo, F., Cara, M., Carey, L., Carniani, S., Carrasquilla, M., Carruthers, M., Case, M., Catherine, R., Chance, D., Chapman, G., Charlot, S., Charlow, B., Chayer, P., Chen, B., Cherinka, B., Chichester, S., Chilton, Z., Chonis, T., Clampin, M., Clark, C., Clark, K., Coe, D., Coleman, B., Comber, B., Comeau, T., Connolly, D., Cooper, J., Cooper, R., Coppock, E., Correnti, M., Cossou, C., Coulais, A., Coyle, L., Cracraft, M., Curti, M., Cuturic, S., Davis, K., Davis, M., Dean, B., Delisa, A., Demeester, W., Dencheva, N., Depasquale, J., Deschenes, J., Hunor Detre, I., Diaz, R., Dicken, D., Difelice, A., Dillman, M., Dixon, W., Doggett, J., Donaldson, T., Douglas, R., Duprie, K., Dupuis, J., Durning, J., Easmin, N., Eck, W., Edeani, C., Egami, E., Ehrenwinkler, R., Eisenhamer, J., Eisenhower, M., Elie, M., Elliott, J., Elliott, K., Ellis, T., Engesser, M., Espinoza, N., Etienne, O., Etxaluze, M., Falini, P., Feeney, M., Ferry, M., Filippazzo, J., Fincham, B., Fix, M., Flagey, N., Florian, M., Flynn, J., Fontanella, E., Ford, T., Forshay, P., Fox, O., Franz, D., Fu, H., Fullerton, A., Galkin, S., Galyer, A., Garcia Marin, M., Gardner, J. P., Gardner, L., Garland, D., Garrett, B., Gasman, D., Gaspar, A., Gaudreau, D., Gauthier, P., Geers, V., Geithner, P., Gennaro, M., Giardino, G., Girard, J., Giuliano, M., Glassmire, K., Glauser, A., Glazer, S., Godfrey, J., Golimowski, D., Gollnitz, D., Gong, F., Gonzaga, S., Gordon, M., Gordon, K., Goudfrooij, P., Greene, T., Greenhouse, M., Grimaldi, S., Groebner, A., Grundy, T., Guillard, P., Gutman, I., Ha, K. Q., Haderlein, P., Hagedorn, A., Hainline, K., Haley, C., Hami, M., Hamilton, F., Hammel, H., Hansen, C., Harkins, T., Harr, M., Hart, J., Hart, Q., Hartig, G., Hashimoto, R., Haskins, S., Hathaway, W., Havey, K., Hayden, B., Hecht, K., Heller-Boyer, C., Henriques, C., Henry, A., Hermann, K., Hernandez, S., Hesman, B., Hicks, B., Hilbert, B., Hines, D., Hoffman, M., Holfeltz, S., Holler, B. J., Hoppa, J., Hott, K., Howard, J. M., Howard, R., Hunter, A., Hunter, D., Hurst, B., Husemann, B., Hustak, L., Ilinca Ignat, L., Illingworth, G., Irish, S., Jackson, W., Jahromi, A., Jakobsen, P., James, L., James, B., Januszewski, W., Jenkins, A., Jirdeh, H., Johnson, P., Johnson, T., Jones, V., Jones, R., Jones, D., Jones, O., Jordan, I., Jordan, M., Jurczyk, S., Jurling, A., Kaleida, C., Kalmanson, P., Kammerer, J., Kang, H., Kao, S. -H., Karakla, D., Kavanagh, P., Kelly, D., Kendrew, S., Kennedy, H., Kenny, D., Keski-Kuha, R., Keyes, C., Kidwell, R., Kinzel, W., Kirk, J., Kirkpatrick, M., Kirshenblat, D., Klaassen, P., Knapp, B., Scott Knight, J., Knollenberg, P., Koehler, R., Koekemoer, A., Kovacs, A., Kulp, T., Kumari, N., Kyprianou, M., La Massa, S., Labador, A., Labiano, A., Lagage, P. -O., Lajoie, C. -P., Lam, M., Lamb, T., Lambros, S., Lampenfield, R., Langston, J., Larson, K., Law, D., Lawrence, J., Lee, D., Leisenring, J., Lepo, K., Leveille, M., Levenson, N., Levine, M., Levy, Z., Lewis, D., Lewis, H., Libralato, M., Lightsey, P., Link, M., Liu, L., Lo, A., Lockwood, A., Logue, R., Long, C., Long, D., Loomis, C., Lopez-Caniego, M., Lorenzo Alvarez, J., Love-Pruitt, J., Lucy, A., Luetzgendorf, N., Maghami, P., Maiolino, R., Major, M., Malla, S., Malumuth, E., Manjavacas, E., Mannfolk, C., Marrione, A., Marston, A., Martel, A., Maschmann, M., Masci, G., Masciarelli, M., Maszkiewicz, M., Mather, J., Mckenzie, K., Mclean, B., Mcmaster, M., Melbourne, K., Melendez, M., Menzel, M., Merz, K., Meyett, M., Meza, L., Miskey, C., Misselt, K., Moller, C., Morrison, J., Morse, E., Moseley, H., Mosier, G., Mountain, M., Mueckay, J., Mueller, M., Mullally, S., Murphy, J., Murray, K., Murray, C., Mustelier, D., Muzerolle, J., Mycroft, M., Myers, R., Myrick, K., Nanavati, S., Nance, E., Nayak, O., Naylor, B., Nelan, E., Nickson, B., Nielson, A., Nieto-Santisteban, M., Nikolov, N., Noriega-Crespo, A., O'Shaughnessy, B., O'Sullivan, B., Ochs, W., Ogle, P., Oleszczuk, B., Olmsted, J., Osborne, S., Ottens, R., Owens, B., Pacifici, C., Pagan, A., Page, J., Park, S., Parrish, K., Patapis, P., Paul, L., Pauly, T., Pavlovsky, C., Pedder, A., Peek, M., Pena-Guerrero, M., Penanen, K., Perez, Y., Perna, M., Perriello, B., Phillips, K., Pietraszkiewicz, M., Pinaud, J. -P., Pirzkal, N., Pitman, J., Piwowar, A., Platais, V., Player, D., Plesha, R., Pollizi, J., Polster, E., Pontoppidan, K., Porterfield, B., Proffitt, C., Pueyo, L., Pulliam, C., Quirt, B., Quispe Neira, I., Ramos Alarcon, R., Ramsay, L., Rapp, G., Rapp, R., Rauscher, B., Ravindranath, S., Rawle, T., Regan, M., Reichard, T. A., Reis, C., Ressler, M. E., Rest, A., Reynolds, P., Rhue, T., Richon, K., Rickman, E., Ridgaway, M., Ritchie, C., Rix, H. -W., Robberto, M., Robinson, G., Robinson, M., Robinson, O., Rock, F., Rodriguez, D., Rodriguez Del Pino, B., Roellig, T., Rohrbach, S., Roman, A., Romelfanger, F., Rose, P., Roteliuk, A., Roth, M., Rothwell, B., Rowlands, N., Roy, A., Royer, P., Royle, P., Rui, C., Rumler, P., Runnels, J., Russ, M., Rustamkulov, Z., Ryden, G., Ryer, H., Sabata, M., Sabatke, D., Sabbi, E., Samuelson, B., Sapp, B., Sappington, B., Sargent, B., Sauer, A., Scheithauer, S., Schlawin, E., Schlitz, J., Schmitz, T., Schneider, A., Schreiber, J., Schulze, V., Schwab, R., Scott, J., Sembach, K., Shanahan, C., Shaughnessy, B., Shaw, R., Shawger, N., Shay, C., Sheehan, E., Shen, S., Sherman, A., Shiao, B., Shih, H. -Y., Shivaei, I., Sienkiewicz, M., Sing, D., Sirianni, M., Sivaramakrishnan, A., Skipper, J., Sloan, G. C., Slocum, C., Slowinski, S., Smith, E., Smith, D., Smith, C., Snyder, G., Soh, W., Tony Sohn, S., Soto, C., Spencer, R., Stallcup, S., Stansberry, J., Starr, C., Starr, E., Stewart, A., Stiavelli, M., Straughn, A., Strickland, D., Stys, J., Summers, F., Sun, F., Sunnquist, B., Swade, D., Swam, M., Swaters, R., Swoish, R., Taylor, J. M., Taylor, R., Te Plate, M., Tea, M., Teague, K., Telfer, R., Temim, T., Thatte, D., Thompson, C., Thompson, L., Thomson, S., Tikkanen, T., Tippet, W., Todd, C., Toolan, S., Tran, H., Trejo, E., Truong, J., Tsukamoto, C., Tustain, S., Tyra, H., Ubeda, L., Underwood, K., Uzzo, M., Van Campen, J., Vandal, T., Vandenbussche, B., Vila, B., Volk, K., Wahlgren, G., Waldman, M., Walker, C., Wander, M., Warfield, C., Warner, G., Wasiak, M., Watkins, M., Weaver, A., Weilert, M., Weiser, N., Weiss, B., Weissman, S., Welty, A., West, G., Wheate, L., Wheatley, E., Wheeler, T., White, R., Whiteaker, K., Whitehouse, P., Whiteleather, J., Whitman, W., Williams, C., Willmer, C., Willoughby, S., Wilson, A., Wirth, G., Wislowski, E., Wolf, E., Wolfe, D., Wolff, S., Workman, B., Wright, R., Wu, C., Wu, R., Wymer, K., Yates, K., Yeager, C., Yeates, J., Yerger, E., Yoon, J., Young, A., Yu, S., Zak, D., Zeidler, P., Zhou, J., Zielinski, T., Zincke, C., Zonak, S., and bibliotheque, la.

Subjects
Science & Technology, Observatories, Infrared astronomy, Astronomical instrumentation, INFRARED SPECTROGRAPH NIRSPEC, FOS: Physical sciences, Astronomy and Astrophysics, Astronomy & Astrophysics, Settore FIS/05 - Astronomia e Astrofisica, Space and Planetary Science, Physical Sciences, Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies., Comment: 5th version as accepted to PASP; 31 pages, 18 figures; https://iopscience.iop.org/article/10.1088/1538-3873/acb293

Published
2022
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279. The imprint of dark matter haloes on the size and velocity dispersion evolution of early-type galaxies

Author

Massimo Stiavelli, Carlo Nipoti, Lorenzo Posti, Luca Ciotti, Posti L., Nipoti C., Stiavelli M., and Ciotti L.

Subjects
Physics, galaxies: halo, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Stellar mass, Dark matter, Velocity dispersion, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Radius, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, dark matter, Galaxy, Redshift, Dark matter halo, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), galaxies: formation, Halo, galaxies: evolution, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Early-type galaxies (ETGs) are observed to be more compact, on average, at $z \gtrsim 2$ than at $z\simeq 0$, at fixed stellar mass. Recent observational works suggest that such size evolution could reflect the similar evolution of the host dark matter halo density as a function of the time of galaxy quenching. We explore this hypothesis by studying the distribution of halo central velocity dispersion ($\sigma_0$) and half-mass radius ($r_{\rm h}$) as functions of halo mass $M$ and redshift $z$, in a cosmological $\Lambda$-CDM $N$-body simulation. In the range $0\lesssim z\lesssim 2.5$, we find $\sigma_0\propto M^{0.31-0.37}$ and $r_{\rm h}\propto M^{0.28-0.32}$, close to the values expected for homologous virialized systems. At fixed $M$ in the range $10^{11} M_\odot \lesssim M\lesssim 5.5 \times 10^{14} M_\odot$ we find $\sigma_0\propto(1+z)^{0.35}$ and $r_{\rm h}\propto(1+z)^{-0.7}$. We show that such evolution of the halo scaling laws is driven by individual haloes growing in mass following the evolutionary tracks $\sigma_0\propto M^{0.2}$ and $r_{\rm h}\propto M^{0.6}$, consistent with simple dissipationless merging models in which the encounter orbital energy is accounted for. We compare the $N$-body data with ETGs observed at $0\lesssim z\lesssim3$ by populating the haloes with a stellar component under simple but justified assumptions: the resulting galaxies evolve consistently with the observed ETGs up to $z \simeq 2$, but the model has difficulty reproducing the fast evolution observed at $z\gtrsim 2$. We conclude that a substantial fraction of the size evolution of ETGs can be ascribed to a systematic dependence on redshift of the dark matter haloes structural properties., Comment: 15 pages, 14 figures, 1 table. Matches the Accepted version from MNRAS

Published
2013
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280. Passively evolving early-type galaxies at 1.4 ≲ z ≲ 2.5 in the Hubble Ultra Deep Field

Author

Alvio Renzini, Massimo Stiavelli, James E. Rhoads, Nino Panagia, Henry C. Ferguson, Anna Pasquali, Emanuele Daddi, Anton M. Koekemoer, S. di Serego Alighieri, N. Pirzkal, Rogier A. Windhorst, Chun Xu, Marcella Brusa, Leonidas A. Moustakas, Andrea Cimatti, Sangeeta Malhotra, Daddi E., Renzini A., Pirzkal N., Cimatti A., Malhotra S., Stiavelli M., Xu C., Pasquali A., Rhoads J. E., Brusa M., di Serego Alighieri S., Ferguson H. C., Koekemoer A. M., Moustakas L. A., Panagia N., and Windhorst R.

Subjects
Physics, COSMIC cancer database, Star formation, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Rest frame, Hubble Ultra-Deep Field, Galaxy, Redshift, Spectral line, Grism, Space and Planetary Science, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

We report on a complete sample of 7 luminous early-type galaxies in the Hubble Ultra Deep Field (UDF) with spectroscopic redshifts between 1.39 and 2.47 and to K1.4. Low-resolution spectra of these objects have been extracted from the HST+ACS grism data taken over the UDF by the GRAPES project. Redshift for the 7 galaxies have been identified based on the UV feature at rest frame 2640=1.7 appears to be roughly a factor of 2--3 smaller than that of their local counterparts, further supporting the notion that such massive and old galaxies are already ubiquitous at early cosmic times. Much smaller effective radii are derived for some of the objects compared to local massive ellipticals, which may be due to morphological K corrections, evolution, or the presence of a central point-like source. Nuclear activity is indeed present in a subset of the galaxies, as revealed by them being hard X-ray sources, hinting to AGN activity having played a role in discontinuing star formation., Comment: 18 pages, 15 figures, ApJ in press

Published
2005

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