Results 121 to 130 of about 3,289,332 (235)

Exploring the Gas-phase Metallicity Gradients of Star-forming Galaxies at Cosmic Noon

The Astrophysical Journal
We explore the relationships between the [O/H] gas-phase metallicity radial gradients and multiple galaxy properties for 238 star-forming galaxies at 0.6 < z < 2.6 selected from the CANDELS Ly α Emission at Reionization survey with stellar mass $8.5\lt ...
Yingjie Cheng, Mauro Giavalisco, Raymond C. Simons, Zhiyuan Ji, Darren Stroupe, Nikko J. Cleri   +5 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

Calibrating Nonparametric Morphological Indicators from JWST Images for Galaxies over 0.5 < z < 3

The Astrophysical Journal
The measurements of morphological indicators of galaxies are often influenced by a series of observational effects. In this study, we utilize a sample of 832 TNG50 simulated galaxies with log( M _* / M _⊙ )> 9 at 0.5 < z < 3 to investigate the ...
Jian Ren, F. S. Liu, Nan Li, Qifan Cui, Pinsong Zhao, Yubin Li, Qi Song, Hassen M. Yesuf, Xian Zhong Zheng   +8 more
doaj   +1 more source

COSMOS-Web: Unraveling the Evolution of Galaxy Size and Related Properties at 2 < z < 10

The Astrophysical Journal Supplement Series
We measure galaxy sizes from 2 
Lilan Yang, Jeyhan S. Kartaltepe, Maximilien Franco, Xuheng Ding, Mark J. Achenbach, Rafael C. Arango-Toro, Caitlin M. Casey, Nicole E. Drakos, Andreas L. Faisst, Steven Gillman, Ghassem Gozaliasl, Marc Huertas-Company, Shuowen Jin, Daizhong Liu, Georgios Magdis, Richard Massey, John D. Silverman, Takumi S. Tanaka, Si-Yue Yu, Hollis B. Akins, Natalie Allen, Olivier Ilbert, Anton M. Koekemoer, Henry Joy McCracken, Louise Paquereau, Jason Rhodes, Brant E. Robertson, Marko Shuntov, Sune Toft   +28 more
doaj   +1 more source

Diffuse Light in Milky Way–like Haloes

The Astrophysical Journal Letters
We investigate the diffuse light (DL) content of dark matter haloes in the mass range $11.5\leqslant \mathrm{log}{M}_{\mathrm{halo}}\leqslant 13$ , a range that also includes the dark matter halo of the Milky Way, taking advantage of a state-of-the-art ...
Emanuele Contini, San Han, Seyoung Jeon, Jinsu Rhee, Sukyoung K. Yi   +4 more
doaj   +1 more source

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

UVCANDELS: The Role of Dust on the Stellar Mass–Size Relation of Disk Galaxies at 0.5 ≤ z ≤ 3.0

The Astrophysical Journal
We use the Ultraviolet Imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey fields (UVCANDELS) to measure half-light radii in the rest-frame far-UV for ∼16,000 disk-like galaxies over 0.5 ≤ z ≤ 3. We compare these results to rest-
Kalina V. Nedkova, Marc Rafelski, Harry I. Teplitz, Vihang Mehta, Laura DeGroot, Swara Ravindranath, Anahita Alavi, Alexander Beckett, Norman A. Grogin, Boris Häußler, Anton M. Koekemoer, Grecco A. Oyarzún, Laura Prichard, Mitchell Revalski, Gregory F. Snyder, Ben Sunnquist, Xin Wang, Rogier A. Windhorst, Nima Chartab, Christopher J. Conselice, Yicheng Guo, Nimish Hathi, Matthew J. Hayes, Zhiyuan Ji, Keunho J. Kim, Ray A. Lucas, Bahram Mobasher, Robert W. O’Connell, Zahra Sattari, Brent M. Smith, Sina Taamoli, L. Y. Aaron Yung, the UVCANDELS Team   +32 more
doaj   +1 more source

Galaxy pairs as a probe for mergers at z ~ 2

, 2011
In this work I investigate the redshift evolution of pair fraction of a sample of 196 massive galaxies from z = 0 to 3, selected from the COSMOS field. We find that on average a massive galaxy undergoes ~ 1.1 \pm 0.5 major merger since z = 3.
Man, Allison W. S., Toft, Sune, Zirm, Andrew   +2 more
core  

The Effect of Galaxy Interactions on Starbursts in Milky Way-mass Galaxies in FIRE Simulations

The Astrophysical Journal
Simulations and observations suggest that galaxy interactions may enhance the star formation rate (SFR) in merging galaxies. One proposed mechanism is the torque exerted on the gas and stars in the larger galaxy by the smaller galaxy.
Fei Li, Mubdi Rahman, Norman Murray, Dušan Kereš, Andrew Wetzel, Claude-André Faucher-Giguère, Philip F. Hopkins, Jorge Moreno   +7 more
doaj   +1 more source

The Velocity Map Asymmetry of Ionized Gas in MaNGA. II. Correlation between Velocity Map Morphology, Star Formation, and Metallicity in Regular Disk Galaxies

The Astrophysical Journal
The morphology of ionized gas velocity maps provides a direct probe of the internal gas kinematics of galaxies. Using integral field spectroscopy from SDSS-IV MaNGA, we analyze a sample of 528 low-inclination, regular disk galaxies to investigate the ...
Shuai Feng, Shiyin Shen, Yanmei Chen, Y. Sophia Dai, Jun Yin, Wenyuan Cui, Mengting Ju, Linlin Li   +7 more
doaj   +1 more source