Results 1 to 10 of about 16,812 (242)

The Heavy Metal Survey: Star Formation Constraints and Dynamical Masses of 21 Massive Quiescent Galaxies at z = 1.3–2.3

The Astrophysical Journal
In this paper, we present the Heavy Metal Survey, which obtained ultradeep medium-resolution spectra of 21 massive quiescent galaxies at 1.3 < z < 2.3 with Keck/LRIS and MOSFIRE.
Mariska Kriek, Aliza G. Beverage, Sedona H. Price, Katherine A. Suess, Guillermo Barro, Rachel S. Bezanson, Charlie Conroy, Sam E. Cutler, Marijn Franx, Jamie Lin, Brian Lorenz, Yilun Ma, Ivelina G. Momcheva, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Katherine E. Whitaker   +16 more
doaj   +1 more source

JADES Imaging of GN-z11: Revealing the Morphology and Environment of a Luminous Galaxy 430 Myr after the Big Bang

The Astrophysical Journal, 2023
We present JWST NIRCam nine-band near-infrared imaging of the luminous z = 10.6 galaxy GN-z11 from the JWST Advanced Deep Extragalactic Survey of the GOODS-N field.
Sandro Tacchella, Daniel J. Eisenstein, Kevin Hainline, Benjamin D. Johnson, William M. Baker, Jakob M. Helton, Brant Robertson, Katherine A. Suess, Zuyi Chen, Erica Nelson, Dávid Puskás, Fengwu Sun, Stacey Alberts, Eiichi Egami, Ryan Hausen, George Rieke, Marcia Rieke, Irene Shivaei, Christina C. Williams, Christopher N. A. Willmer, Andrew Bunker, Alex J. Cameron, Stefano Carniani, Stephane Charlot, Mirko Curti, Emma Curtis-Lake, Tobias J. Looser, Roberto Maiolino, Michael V. Maseda, Tim Rawle, Hans-Walter Rix, Renske Smit, Hannah Übler, Chris Willott, Joris Witstok, Stefi Baum, Rachana Bhatawdekar, Kristan Boyett, A. Lola Danhaive, Anna de Graaff, Ryan Endsley, Zhiyuan Ji, Jianwei Lyu, Lester Sandles, Aayush Saxena, Jan Scholtz, Michael W. Topping, Lily Whitler   +47 more
doaj   +1 more source

Roles of Supernova and Active Galactic Nucleus Feedback in Shaping the Baryonic Content in a Wide Range of Dark Matter Halo Masses

The Astrophysical Journal Supplement Series
We build upon FEGA25 , a previously introduced semianalytic model (SAM) for galaxy formation and evolution, by focusing on its enhanced treatment of supernova (SN) and active galactic nucleus (AGN) feedback mechanisms.
Emanuele Contini, Changjo Seo, Jinsu Rhee, Seyoung Jeon, Sukyoung K. Yi   +4 more
doaj   +1 more source

A Full Active Galactic Nuclei Feedback Prescription for Numerical Models: Negative, Positive, and Hot Gas-ejection Modes

The Astrophysical Journal Supplement Series
We build upon the state-of-the-art semianalytic model FEGA24 for the formation and evolution of galaxies, which integrates the latest prescriptions relevant to galaxy formation and evolution, alongside a comprehensive active galactic nuclei (AGN ...
Emanuele Contini, Sukyoung K. Yi, Jinsu Rhee, Seyoung Jeon   +3 more
doaj   +1 more source

Galaxy Quenching at the High Redshift Frontier: A Fundamental Test of Cosmological Models in the Early Universe with JWST-CEERS

The Astrophysical Journal
We present an analysis of the quenching of star formation in massive galaxies ( M _* > 10 ^9.5 M _⊙ ) within the first 0.5–3 Gyr of the Universe’s history utilizing JWST-CEERS data.
Asa F. L. Bluck, Christopher J. Conselice, Katherine Ormerod, Joanna M. Piotrowska, Nathan Adams, Duncan Austin, Joseph Caruana, K. J. Duncan, Leonardo Ferreira, Paul Goubert, Thomas Harvey, James Trussler, Roberto Maiolino   +12 more
doaj   +1 more source

Co-evolution of the Milky Way high- and low-α sequences with chemical evolution models

Astronomy & Astrophysics
Context. Observational data have revealed a clear dichotomy in the [α/Fe] versus [Fe/H] diagram of the Milky Way thick and thin disc stars. Many recent studies have shown evidence of a co-evolution phase between the high- and low-α disc sequences as well
Grisoni V., Spitoni E., Matteucci F.
doaj   +1 more source

Suppression of Star Formation in Galaxy Pairs

The Astrophysical Journal
We investigate the suppression of star formation in galaxy pairs based on the isolated galaxy pair sample derived from the Sloan Digital Sky Survey survey.
Shuai Feng, Shi-Yin Shen, Fang-Ting Yuan, Wen-Xin Zhong, Wen-Yuan Cui, Lin-Lin Li   +5 more
doaj   +1 more source

The Parameter Space of Galaxy Formation

, 2010
Semi-analytic models are a powerful tool for studying the formation of galaxies. However, these models inevitably involve a significant number of poorly constrained parameters that must be adjusted to provide an acceptable match to the observed Universe. In this paper, we set out to quantify the degree to which observational data sets can constrain the
Bower, R. G., Vernon, I., Goldstein, M., Benson, A. J., Lacey, Cedric G., Baugh, C. M., Cole, Shaun, Frenk, C. S.   +7 more
openaire   +3 more sources

PAC. V. The Roles of Mass and Environment in the Quenching of Galaxies

The Astrophysical Journal
The roles that mass and environment play in galaxy quenching are still under debate. Leveraging the Photometric objects Around Cosmic webs method, we analyze the excess surface distribution ${\bar{n}}_{2}{w}_{{\rm{p}}}({r}_{{\rm{p}}})$ of photometric ...
Yun Zheng, Kun Xu, Y. P. Jing, Donghai Zhao, Hongyu Gao, Xiaolin Luo, Jiaxin Han, Yu Yu, Ming Li   +8 more
doaj   +1 more source

Difference between Half-mass Radius and Half-light Radius of Galaxies at 0.2 < z < 2.5 Revealed by JWST/NIRCam Data

The Astrophysical Journal
Using JWST observations in CANDELS fields, we measure the half-light radius ( r _e,light ) and half-mass–radius ( r _e,mass ) for 14,333 galaxies with stellar masses M _*  > 10 ^9 M _⊙ at redshifts 0.2  1, though a slight decreasing trend is seen between
Mingen Xin, Guanwen Fang, Jie Song, Shiying Lu, Zesen Lin, Xu Kong   +5 more
doaj   +1 more source