Zobrazeno 1 - 10
of 3 043
pro vyhledávání: '"galaxy: stellar content"'
Autor:
Michael G. Jones, David J. Sand, Burçin Mutlu-Pakdil, Catherine E. Fielder, Denija Crnojević, Paul Bennet, Kristine Spekkens, Richard Donnerstein, Amandine Doliva-Dolinsky, Ananthan Karunakaran, Jay Strader, Dennis Zaritsky
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L37 (2024)
We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during the initial phase of our ongoing SEmi-Automated Machine LEarning Search
Externí odkaz:
https://doaj.org/article/90ddd07ce7df48e3aed843eb9fd7d47e
Autor:
Lu Shen, Casey Papovich, Jasleen Matharu, Nor Pirzkal, Weida Hu, Bren E. Backhaus, Micaela B. Bagley, Yingjie Cheng, Nikko J. Cleri, Steven L. Finkelstein, Marc Huertas-Company, Mauro Giavalisco, Norman A. Grogin, Intae Jung, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Jennifer M. Lotz, Michael V. Maseda, Pablo G. Pérez-González, Barry Rothberg, Raymond C. Simons, Sandro Tacchella, Christina C. Williams, L. Y. Aaron Yung
Publikováno v:
The Astrophysical Journal Letters, Vol 963, Iss 2, p L49 (2024)
We study the H α equivalent width (EW(H α )) maps of 19 galaxies at 0.6 < z < 2.2 in the Hubble Ultra Deep Field using NIRISS slitless spectroscopy as part of the Next Generation Deep Extragalactic Exploratory Public Survey. Our galaxies mostly lie
Externí odkaz:
https://doaj.org/article/233eaf8512a64cd58c8cebba87f0a955
Autor:
Juno Li, Elisabete Da Cunha, Jorge González-López, Manuel Aravena, Ilse De Looze, N. M. Förster Schreiber, Rodrigo Herrera-Camus, Justin Spilker, Ken-ichi Tadaki, Loreto Barcos-Munoz, Andrew J. Battisti, Jack E. Birkin, Rebecca A. A. Bowler, Rebecca Davies, Tanio Díaz-Santos, Andrea Ferrara, Deanne B. Fisher, Jacqueline Hodge, Ryota Ikeda, Meghana Killi, Lilian Lee, Daizhong Liu, Dieter Lutz, Ikki Mitsuhashi, Thorsten Naab, Ana Posses, Monica Relaño, Manuel Solimano, Hannah Übler, Stefan Anthony van der Giessen, Vicente Villanueva
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 70 (2024)
Using a combination of Hubble Space Telescope (HST), JWST, and Atacama Large Millimeter/submillimeter Array (ALMA) data, we perform spatially resolved spectral energy distributions (SED) fitting of fourteen 4 < z < 6 ultraviolet (UV)-selected main-se
Externí odkaz:
https://doaj.org/article/320ab67926fd4acb966a861b5d60f1d2
Autor:
Taylor J. Hoyt, In Sung Jang, Wendy L. Freedman, Barry F. Madore, Abigail J. Lee, Kayla A. Owens
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 111 (2024)
Boasting a 6.5 m mirror in space, JWST can increase by several times the number of supernovae (SNe) to which a redshift-independent distance has been measured with a precision distance indicator (e.g., tip of the red giant branch (TRGB) or Cepheids);
Externí odkaz:
https://doaj.org/article/4a8f6d4855e14ae4a111685c848dcf2b
Autor:
Yang Huang, Timothy C. Beers, Kai Xiao, Haibo Yuan, Young Sun Lee, Hongrui Gu, Jihye Hong, Jifeng Liu, Zhou Fan, Paula Coelho, Patricia Cruz, F. J. Galindo-Guil, Simone Daflon, Fran Jiménez-Esteban, Javier Cenarro, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Carlos López-Sanjuan, Antonio Marín-Franch, Mariano Moles, Jesús Varela, Héctor Vázquez Ramió, Jailson Alcaniz, Renato Dupke, Alessandro Ederoclite, Laerte Sodré Jr., Raul E. Angulo
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 192 (2024)
We present a catalog of stellar parameters (effective temperature T _eff , surface gravity $\mathrm{log}g$ , age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/Fe], and [ α /Fe]) for some five million stars (4.5 million dwarfs
Externí odkaz:
https://doaj.org/article/ad77f3edf33b4139943af0a68c73fc99
Autor:
Zhuyun Zhuang, Evan N. Kirby, Charles C. Steidel, Mithi A. C. de los Reyes, Nikolaus Z. Prusinski, N. Leethochawalit, Minjung Park, Charlie Conroy, Evan H. Nuñez
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 182 (2024)
Understanding the chemical enrichment of different elements is crucial to gaining a complete picture of galaxy chemical evolution. In this study, we present a new sample of 46 low-redshift, low-mass star-forming galaxies at M _* ∼ 10 ^8−10 M _⊙
Externí odkaz:
https://doaj.org/article/3dd3702df2034711aecb45dee9596de7
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 165 (2024)
In NGC 2992, a galaxy-scale ionized gas outflow driven by active galactic nuclei (AGNs) has long been recognized, yet its impact on the host galaxy has remained elusive. In this paper, we utilize data from the archival Very Large Telescope/MUSE to pr
Externí odkaz:
https://doaj.org/article/b20a5eef61ba46859402b41a8e589c12
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 95 (2024)
The stellar initial mass function (IMF) characterizes the mass distribution of newly formed stars in various cosmic environments, serving as a fundamental assumption in astrophysical research. Recent findings challenge the prevalent notion of a unive
Externí odkaz:
https://doaj.org/article/4294b204e869478087a4cc64822b324b
Publikováno v:
The Astronomical Journal, Vol 168, Iss 1, p 25 (2024)
The structure and evolution of the spiral arms of the Milky Way have long been an important yet controversial issue. The wide age range of OB-type stars, coupled with the large amount of high-precision astrometric data provided by Gaia DR3, presents
Externí odkaz:
https://doaj.org/article/64963f7d58714dbd8cb1e78849026b12
Autor:
Pablo G. Pérez-González, Guillermo Barro, George H. Rieke, Jianwei Lyu, Marcia Rieke, Stacey Alberts, Christina C. Williams, Kevin Hainline, Fengwu Sun, Dávid Puskás, Marianna Annunziatella, William M. Baker, Andrew J. Bunker, Eiichi Egami, Zhiyuan Ji, Benjamin D. Johnson, Brant Robertson, Bruno Rodríguez Del Pino, Wiphu Rujopakarn, Irene Shivaei, Sandro Tacchella, Christopher N. A. Willmer, Chris Willott
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 4 (2024)
We study 31 little red dots (LRD) detected by JADES/NIRCam and covered by the SMILES/MIRI survey, of which ∼70% are detected in the two bluest MIRI bands and 40% in redder MIRI filters. The median/quartiles redshifts are $z={6.9}_{5.9}^{7.7}$ (55%
Externí odkaz:
https://doaj.org/article/54ee7a6a14e44e1fa63d0e622b2a8209