Zobrazeno 1 - 10
of 658
pro vyhledávání: '"Stellar feedback"'
Autor:
Sean T. Linden, Thomas Lai, Aaron S. Evans, Lee Armus, Kirsten L. Larson, Jeffrey A. Rich, Vivian U, George C. Privon, Hanae Inami, Yiqing Song, Marina Bianchin, Thomas Bohn, Victorine A. Buiten, Maria Sanchez-García, Justin Kader, Laura Lenkić, Anne M. Medling, Torsten Böker, Tanio Díaz-Santos, Vassilis Charmandaris, Loreto Barcos-Muñoz, Paul van der Werf, Sabrina Stierwalt, Susanne Aalto, Philip Appleton, Christopher C. Hayward, Justin H. Howell, Matthew A. Malkan, Joseph M. Mazzarella, Eric J. Murphy, Jason Surace
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 2, p L27 (2024)
We present the results of a James Webb Space Telescope NIRCam and NIRSpec investigation into the young massive star cluster (YMC) population of NGC 3256, the most cluster-rich luminous infrared galaxy in the Great Observatories All Sky LIRG Survey. W
Externí odkaz:
https://doaj.org/article/953188d6a4ae4640bc1c55df9d2a969f
Autor:
Shyam H. Menon, Lachlan Lancaster, Blakesley Burkhart, Rachel S. Somerville, Avishai Dekel, Mark R. Krumholz
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L28 (2024)
The observed rest-UV luminosity function at cosmic dawn ( z ∼ 8–14) measured by JWST revealed an excess of UV-luminous galaxies relative to many prelaunch theoretical predictions. A high star formation efficiency (SFE) and a top-heavy initial mas
Externí odkaz:
https://doaj.org/article/de99a4d9442b46ad92e36ac9a6ff720e
Autor:
G. Mark Voit, Christopher Carr, Drummond B. Fielding, Viraj Pandya, Greg L. Bryan, Megan Donahue, Benjamin D. Oppenheimer, Rachel S. Somerville
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 151 (2024)
The scaling of galaxy properties with halo mass suggests that feedback loops regulate star formation, but there is no consensus yet about how those feedback loops work. To help clarify discussions of galaxy-scale feedback, Paper I presented a very si
Externí odkaz:
https://doaj.org/article/b384e8a491ff441ebe95f8f4fcd785d5
Autor:
G. Mark Voit, Viraj Pandya, Drummond B. Fielding, Greg L. Bryan, Christopher Carr, Megan Donahue, Benjamin D. Oppenheimer, Rachel S. Somerville
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 150 (2024)
This paper presents a new framework for understanding the relationship between a galaxy and its circumgalactic medium (CGM). It focuses on how imbalances between heating and cooling cause either expansion or contraction of the CGM. It does this by tr
Externí odkaz:
https://doaj.org/article/8fdfb468ea204beda1fe322b0f16afc9
Autor:
Laura Lenkić, Deanne B. Fisher, Alberto D. Bolatto, Peter J. Teuben, Rebecca C. Levy, Jiayi Sun, Rodrigo Herrera-Camus, Karl Glazebrook, Danail Obreschkow, Roberto Abraham
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 88 (2024)
The gas-phase velocity dispersions in disk galaxies, which trace turbulence in the interstellar medium, are observed to increase with lookback time. However, the mechanisms that set this rise in turbulence are observationally poorly constrained. To a
Externí odkaz:
https://doaj.org/article/d9afb9e8930b4ba98e3619038480a0f9
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 98 (2024)
Stellar winds from massive stars may be significant sources of cosmic rays (CRs). To investigate this connection, we report a detailed study of gamma-ray emission near the young Milky Way star cluster (≈0.5 Myr old) in the star-forming region RCW 3
Externí odkaz:
https://doaj.org/article/0bf3dfbc18b5457083a53ca78a688558
Autor:
Serena Perrotta, Alison L. Coil, David S. N. Rupke, Wenmeng Ning, Brendan Duong, Aleksandar M. Diamond-Stanic, Drummond B. Fielding, James E. Geach, Ryan C. Hickox, John Moustakas, Gregory H. Rudnick, Paul H. Sell, Cameren N. Swiggum, Christy A. Tremonti
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 263 (2024)
High-velocity outflows are ubiquitous in compact, massive ( M _* ∼ 10 ^11 M _⊙ ), z ∼ 0.5 galaxies with extreme star formation surface densities (Σ _SFR ∼ 2000 M _⊙ yr ^−1 kpc ^−2 ). We have previously detected and characterized these
Externí odkaz:
https://doaj.org/article/27b0e689e3424d32bac4eb70d2c7a444
Autor:
Sukalpa Kundu, Jayanta Dutta
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 219 (2024)
Recent numerical simulations have shown that the unstable disk within the central regime of the primordial gas cloud fragments to form multiple protostars on several scales. Their evolution depends on the mass accretion phenomenon, interaction with t
Externí odkaz:
https://doaj.org/article/0237d815401f475c80a0bf63819eb9c9
Autor:
Yuri Oku, Kentaro Nagamine
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 183 (2024)
We introduce our new cosmological simulation data set CROCODILE, executed using the GADGET4-Osaka smoothed particle hydrodynamics code. This simulation incorporates an updated supernova (SN) feedback model of Y. Oku et al. and an active galactic nucl
Externí odkaz:
https://doaj.org/article/a125c61d33e34679b06f447d849eed1e
Autor:
Sultan Hassan, Eve C. Ostriker, Chang-Goo Kim, Greg L. Bryan, Jan D. Burger, Drummond B. Fielding, John C. Forbes, Shy Genel, Lars Hernquist, Sarah M. R. Jeffreson, Bhawna Motwani, Matthew C. Smith, Rachel S. Somerville, Ulrich P. Steinwandel, Romain Teyssier
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 151 (2024)
Traditional star formation subgrid models implemented in cosmological galaxy formation simulations, such as that of V. Springel & L. Hernquist (hereafter SH03), employ adjustable parameters to satisfy constraints measured in the local Universe. In re
Externí odkaz:
https://doaj.org/article/3e91b06c21f8473198573bcc75620ca2