Zobrazeno 1 - 10
of 6 972
pro vyhledávání: '"Galaxy, evolution"'
Autor:
Byun, Doyee
Quasars can affect their surrounding environment through a process known as active galactic nucleus (AGN) feedback, through which the quasar can curtail the formation of stars, regulate the evolution of its host galaxy, and affect its surrounding env
Externí odkaz:
https://hdl.handle.net/10919/120962
Autor:
Jonathan Freundlich
Publikováno v:
Fundamental Plasma Physics, Vol 11, Iss , Pp 100059- (2024)
The interstellar medium of galaxies is composed of multiple phases, including molecular, atomic, and ionized gas, as well as dust. Stars are formed within this medium from cold molecular gas clouds, which collapse due to their gravitational attractio
Externí odkaz:
https://doaj.org/article/bbb581ca46f34e60974256347574bff2
Autor:
Francesco Gabrielli, Lumen Boco, Giancarlo Ghirlanda, Om Sharan Salafia, Ruben Salvaterra, Mario Spera, Andrea Lapi
Publikováno v:
Universe, Vol 10, Iss 10, p 383 (2024)
The stellar initial mass function (IMF) represents a fundamental quantity in astrophysics and cosmology describing the mass distribution of stars from low mass all the way up to massive and very massive stars. It is intimately linked to a wide variet
Externí odkaz:
https://doaj.org/article/a01e5092a34048488b719e2de200667f
Publikováno v:
Galaxies, Vol 12, Iss 4, p 49 (2024)
We devise and exploit a data-driven, semi-empirical framework of galaxy formation and evolution, coupling it to recipes for planet formation from stellar and planetary science, to compute the cosmic planet formation rate, and the properties of the pl
Externí odkaz:
https://doaj.org/article/f2f51e31b87f40f9abd9fbbe320742c9
Autor:
Jorge A. Zavala, Tom Bakx, Ikki Mitsuhashi, Marco Castellano, Antonello Calabro, Hollis Akins, Veronique Buat, Caitlin M. Casey, David Fernandez-Arenas, Maximilien Franco, Adriano Fontana, Bunyo Hatsukade, Luis C. Ho, Ryota Ikeda, Jeyhan Kartaltepe, Anton M. Koekemoer, Jed McKinney, Lorenzo Napolitano, Pablo G. Pérez-González, Paola Santini, Stephen Serjeant, Elena Terlevich, Roberto Terlevich, L. Y. Aaron Yung
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 1, p L9 (2024)
We present Atacama Large Millimeter/submillimeter Array observations on the high-redshift galaxy GHZ2 and report a successful detection of the rest-frame 88 μ m atomic transition from doubly ionized oxygen at z = 12.3327 ± 0.0035. Based on these ob
Externí odkaz:
https://doaj.org/article/8110efb8ba70405d80ff90bc16f47b94
Autor:
Erin Coleman, Keerthi Vasan G.C., Yuguang Chen, Tucker Jones, Sunny Rhoades, Richard Ellis, Dan Stark, Nicha Leethochawalit, Ryan Sanders, Kris Mortensen, Karl Glazebrook, Glenn G. Kacprzak
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 1, p L23 (2024)
The baryon cycle is crucial for understanding galaxy formation, as gas inflows and outflows vary throughout a galaxy’s lifetime and affect its star formation rate. Despite the necessity of accretion for galaxy growth at high redshifts, direct obser
Externí odkaz:
https://doaj.org/article/840fb8e83fd74c24894a49c35cfa421c
Autor:
Iryna Chemerynska, Hakim Atek, Pratika Dayal, Lukas J. Furtak, Robert Feldmann, Jenny E. Greene, Michael V. Maseda, Themiya Nanayakkara, Pascal A. Oesch, Seiji Fujimoto, Ivo Labbé, Rachel Bezanson, Gabriel Brammer, Sam E. Cutler, Joel Leja, Richard Pan, Sedona H. Price, Bingjie Wang, John R. Weaver, Katherine E. Whitaker
Publikováno v:
The Astrophysical Journal Letters, Vol 976, Iss 1, p L15 (2024)
The mass–metallicity relation provides crucial insights into the baryon cycle in galaxies and strong constraints on galaxy formation models. We use JWST NIRSpec observations from the UNCOVER program to measure the gas-phase metallicity in a sample
Externí odkaz:
https://doaj.org/article/00d075d5664542659648d0466ba60203
Publikováno v:
The Astrophysical Journal Letters, Vol 975, Iss 1, p L23 (2024)
It is well known that almost all isolated dwarf galaxies are actively forming stars. We report the discovery of dw1322m2053 (nicknamed Hedgehog), an isolated quiescent dwarf galaxy at a distance of 2.40 ± 0.15 Mpc with a stellar mass of M _⋆ ≈ 1
Externí odkaz:
https://doaj.org/article/bc7ccbd3e18b4abd8350ac936fcd388a
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 2, p L35 (2024)
The recent JWST observation of the Firefly Sparkle at z = 8.3 offers a unique opportunity to link the high- and the low- z Universe. Indeed, the claim of it being a Milky Way (MW) type of assembly at the cosmic dawn opens the possibility of interpret
Externí odkaz:
https://doaj.org/article/4e706ffd5a9b4513a44d2a46bf350fef
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