Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Quenched galaxies"'
Autor:
David J. Sand, Burçin Mutlu-Pakdil, Michael G. Jones, Ananthan Karunakaran, Jennifer E. Andrews, Paul Bennet, Denija Crnojević, Giuseppe Donatiello, Alex Drlica-Wagner, Catherine Fielder, David Martínez-Delgado, Clara E. Martínez-Vázquez, Kristine Spekkens, Amandine Doliva-Dolinsky, Laura C. Hunter, Jeffrey L. Carlin, William Cerny, Tehreem N. Hai, Kristen B.W. McQuinn, Andrew B. Pace, Adam Smercina
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 1, p L5 (2024)
We report the discovery of three faint and ultrafaint dwarf galaxies—Sculptor A, Sculptor B, and Sculptor C—in the direction of NGC 300 ( D = 2.0 Mpc), a Large Magellanic Cloud–mass galaxy. Deep ground-based imaging with Gemini/GMOS resolves al
Externí odkaz:
https://doaj.org/article/4c4562152a1e4c9a970475477c6e2699
Autor:
Chloë E. Benton, Erica J. Nelson, Tim B. Miller, Rachel Bezanson, Justus Gibson, Abigail I Hartley, Marco Martorano, Sedona H. Price, Katherine A. Suess, Arjen van der Wel, Pieter van Dokkum, John R. Weaver, Katherine E. Whitaker
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 2, p L28 (2024)
Hubble Space Telescope imaging shows that most star-forming galaxies at cosmic noon—the peak of cosmic star formation history—appear disk-dominated, leaving the origin of the dense cores in their quiescent descendants unclear. With the James Webb
Externí odkaz:
https://doaj.org/article/54e7bc9ce373440e942b661984bdedf3
Autor:
Lillian Wright, Katherine E. Whitaker, John R. Weaver, Sam E. Cutler, Bingjie Wang, Adam Carnall, Katherine A. Suess, Rachel Bezanson, Erica Nelson, Tim B. Miller, Kei Ito, Francesco Valentino
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 1, p L10 (2024)
In this Letter, we measure the rest-frame optical and near-infrared sizes of 10 quiescent candidates at 3 < z < 5, first reported by Carnall et al. We use James Webb Space Telescope Near-Infrared Camera F277W and F444W imaging obtained through the pu
Externí odkaz:
https://doaj.org/article/092189aa92a340b9b9d79c09c79690ed
Autor:
Abdurrahman Naufal, Yusei Koyama, Chiara D’Eugenio, Helmut Dannerbauer, Rhythm Shimakawa, Jose Manuel Pérez-Martínez, Tadayuki Kodama, Yuheng Zhang, Kazuki Daikuhara
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 58 (2024)
We report the Hubble Space Telescope Wide Field Camera 3 G141 grism slitless spectroscopy observation of the core region of the Spiderweb protocluster at z = 2.16. We analyzed the spectra of all objects in a $\sim 2\times 2\,{\mathrm{arcmin}}^{2}$ fi
Externí odkaz:
https://doaj.org/article/6e7f206cf64741eeb4b9eaf8aa453191
Autor:
Vasily Kokorev, John Chisholm, Ryan Endsley, Steven L. Finkelstein, Jenny E. Greene, Hollis B. Akins, Volker Bromm, Caitlin M. Casey, Seiji Fujimoto, Ivo Labbé, Rebecca L. Larson
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 178 (2024)
The James Webb Space Telescope (JWST) has uncovered a ubiquitous population of dust-obscured compact sources at z ≳ 4. Many of these objects exhibit signs of active galactic nucleus (AGN) activity, making their study crucial for understanding the f
Externí odkaz:
https://doaj.org/article/2ec8f85fa3e24b62940b89d438aaba07
Autor:
David J. Setton, Gourav Khullar, Tim B. Miller, Rachel Bezanson, Jenny E. Greene, Katherine A. Suess, Katherine E. Whitaker, Jacqueline Antwi-Danso, Hakim Atek, Gabriel Brammer, Sam E. Cutler, Pratika Dayal, Robert Feldmann, Seiji Fujimoto, Lukas J. Furtak, Karl Glazebrook, Andy D. Goulding, Vasily Kokorev, Ivo Labbe, Joel Leja, Yilun Ma, Danilo Marchesini, Themiya Nanayakkara, Richard Pan, Sedona H. Price, Jared C. Siegel, Heath Shipley, John R. Weaver, Pieter van Dokkum, Bingjie Wang, Christina C. Williams
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 145 (2024)
We report the spectroscopic confirmation of a massive ( $\mathrm{log}({M}_{\star }/{M}_{\odot })=10.34{\pm }_{0.07}^{0.06}$ ), Hubble Space Telescope–dark ( m _F150W − m _F444W = 3.6) quiescent galaxy at z _spec = 3.97 in the UNCOVER survey. NIRS
Externí odkaz:
https://doaj.org/article/fa16a9d497d44ced8f69071746880f67
Autor:
Arianna S. Long, Jacqueline Antwi-Danso, Erini L. Lambrides, Christopher C. Lovell, Alexander de la Vega, Francesco Valentino, Jorge A. Zavala, Caitlin M. Casey, Stephen M. Wilkins, L. Y. Aaron Yung, Pablo Arrabal Haro, Micaela B. Bagley, Laura Bisigello, Katherine Chworowsky, M. C. Cooper, Olivia R. Cooper, Asantha R. Cooray, Darren Croton, Mark Dickinson, Steven L. Finkelstein, Maximilien Franco, Katriona M. L. Gould, Michaela Hirschmann, Taylor A. Hutchison, Jeyhan S. Kartaltepe, Dale D. Kocevski, Anton M. Koekemoer, Ray A. Lucas, Jed McKinney, Rachel Nere, Casey Papovich, Pablo G. Pérez-González, Nor Pirzkal, Paola Santini
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 68 (2024)
Substantial populations of massive quiescent galaxies at z ≥ 3 challenge our understanding of rapid galaxy growth and quenching over short timescales. In order to piece together this evolutionary puzzle, more statistical samples of these objects ar
Externí odkaz:
https://doaj.org/article/9d6fd8ca00f54dc2be65252f97169c52
Autor:
Charles L. Steinhardt, Albert Sneppen, Thorbjørn Clausen, Harley Katz, Martin P. Rey, Jonas Stahlschmidt
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 172 (2024)
Recent studies have reported tension between the presence of luminous, high-redshift galaxies and the halo mass functions predicted by standard cosmology. Here, an improved test is proposed using the presence of high-redshift Balmer breaks to probe t
Externí odkaz:
https://doaj.org/article/3547063d7d13464a8528dd84be1e186f
Autor:
Kei Ito, Francesco Valentino, Gabriel Brammer, Andreas L. Faisst, Steven Gillman, Carlos Gómez-Guijarro, Katriona M. L. Gould, Kasper E. Heintz, Olivier Ilbert, Christian Kragh Jespersen, Vasily Kokorev, Mariko Kubo, Georgios E. Magdis, Conor J. R. McPartland, Masato Onodera, Francesca Rizzo, Masayuki Tanaka, Sune Toft, Aswin P. Vijayan, John R. Weaver, Katherine E. Whitaker, Lillian Wright
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 192 (2024)
We present the results of a systematic study of the rest-frame optical morphology of quiescent galaxies at z ≥ 3 using the Near-Infrared Camera (NIRCam) on board the James Webb Space Telescope (JWST). Based on a sample selected by UVJ color or NUVU
Externí odkaz:
https://doaj.org/article/a8decbb2ca004abfae343bcd8f950144
Autor:
Michał J. Michałowski, C. Gall, J. Hjorth, D. T. Frayer, A.-L. Tsai, K. Rowlands, T. T. Takeuchi, A. Leśniewska, D. Behrendt, N. Bourne, D. H. Hughes, M. P. Koprowski, J. Nadolny, O. Ryzhov, M. Solar, E. Spring, J. Zavala, P. Bartczak
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 129 (2024)
Understanding how galaxies quench their star formation is crucial for studies of galaxy evolution. Quenching is related to a decrease of cold gas. In the first paper we showed that the dust removal timescale in early-type galaxies (ETGs) is about 2.5
Externí odkaz:
https://doaj.org/article/cc99dad7ac0747acaf0ed9c7701a2d43