Results 21 to 30 of about 166,323 (379)

A self-similar model of galaxy formation and dark halo relaxation [PDF]

Journal of Cosmology and Astroparticle Physics, 2023
We develop a spherical self-similar model for the formation of a galaxy through gas collapsing in an isolated self-gravitating dark matter halo. As is well known, the self-similarity assumption makes the problem eminently tractable by reducing it to a ...
Premvijay Velmani, A. Paranjape
semanticscholar   +1 more source

CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST [PDF]

Astrophysical Journal Letters, 2022
We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z ∼ 0.5 to >10 using several imaging and ...
S. Finkelstein, M. Bagley, H. Ferguson, S. Wilkins, J. Kartaltepe, C. Papovich, L. Y. Aaron Yung, P. Haro, P. Behroozi, M. Dickinson, D. Kocevski, A. Koekemoer, R. Larson, A. L. Bail, Alexa M. Morales, P. Pérez-González, D. Burgarella, R. Davè, M. Hirschmann, R. Somerville, S. Wuyts, V. Bromm, C. Casey, A. Fontana, S. Fujimoto, J. Gardner, M. Giavalisco, A. Grazian, N. Grogin, N. Hathi, T. Hutchison, S. Jha, S. Jogee, L. Kewley, A. Kirkpatrick, A. Long, J. Lotz, L. Pentericci, J. Pierel, N. Pirzkal, S. Ravindranath, R. Ryan, J. Trump, Guang Yang, R. Bhatawdekar, L. Bisigello, V. Buat, A. Calabró, M. Castellano, N. Cleri, M. Cooper, D. Croton, E. Daddi, A. Dekel, D. Elbaz, Maximilien Franco, E. Gawiser, B. Holwerda, M. Huertas-Company, A. Jaskot, G. Leung, R. Lucas, B. Mobasher, V. Pandya, S. Tacchella, B. Weiner, J. Zavala   +66 more
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Galaxy formation and evolution

Theoretical and Natural Science, 2023
Galaxies as the most important structures in the universe and Galaxy formation is a sequential redistribution process.The basic picture of galaxy formation was first proposed by White and Rees.The physical processes involved in galaxy formation are very ...
Zeyue Xu
semanticscholar   +1 more source

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z ∼ 12

The Astrophysical Journal, 2023
We present morphologies of galaxies at z ≳ 9 resolved by JWST/NIRCam 2–5 μ m imaging. Our sample consists of 22 galaxy candidates identified by stringent dropout and photo- z criteria in GLASS, CEERS, SMACS J0723, and Stephan’s Quintet flanking fields ...
Yoshiaki Ono, Yuichi Harikane, Masami Ouchi, Hidenobu Yajima, Makito Abe, Yuki Isobe, Takatoshi Shibuya, John H. Wise, Yechi Zhang, Kimihiko Nakajima, Hiroya Umeda   +10 more
doaj   +1 more source

LIMFAST. I. A Seminumerical Tool for Line Intensity Mapping

The Astrophysical Journal, 2023
We present LIMFAST, a seminumerical code for simulating high-redshift galaxy formation and cosmic reionization as revealed by multitracer line intensity mapping (LIM) signals.
Lluís Mas-Ribas, Guochao Sun, Tzu-Ching Chang, Michael O. Gonzalez, Richard H. Mebane   +4 more
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LIMFAST. II. Line Intensity Mapping as a Probe of High-redshift Galaxy Formation

The Astrophysical Journal, 2023
The epoch of reionization (EoR) offers a unique window into the dawn of galaxy formation, through which high-redshift galaxies can be studied by observations of both themselves and their impact on the intergalactic medium.
Guochao Sun, Lluís Mas-Ribas, Tzu-Ching Chang, Steven R. Furlanetto, Richard H. Mebane, Michael O. Gonzalez, Jasmine Parsons, A. C. Trapp   +7 more
doaj   +1 more source

Globular cluster formation and evolution in the context of cosmological galaxy assembly: open questions [PDF]

Proceedings of the Royal Society A, 2018
We discuss some of the key open questions regarding the formation and evolution of globular clusters (GCs) during galaxy formation and assembly within a cosmological framework.
D. Forbes, N. Bastian, M. Gieles, R. Crain, J. Kruijssen, S. Larsen, S. Ploeckinger, O. Agertz, M. Trenti, A. Ferguson, J. Pfeffer, O. Gnedin   +11 more
semanticscholar   +1 more source

New Insight on Galaxy Formation and Evolution from Keck Spectroscopy of the Hawaii Deep Fields [PDF]

, 1996
We present the results of spectroscopic studies with the LRIS spectrograph on Keck of two of the Hawaii deep survey fields. The 393 objects observed cover an area of 26.2 square arcmin and constitute a nearly complete sample down to K = 20, I = 23, and B
L. Cowie, A. Songaila, E. Hu, J. Cohen
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DESI Survey Validation Data in the COSMOS/Hyper Suprime-Cam Field: Cool Gas Trace Main-sequence Star-forming Galaxies at the Cosmic Noon

The Astrophysical Journal, 2023
We present the first result in exploring the gaseous halo and galaxy correlation using the Dark Energy Spectroscopic Instrument survey validation data in the Cosmic Evolution Survey (COSMOS) and Hyper Suprime-Cam field.
Siwei Zou, Linhua Jiang, Zheng Cai, John Moustakas, Zechang Sun, Zhiwei Pan, Jiani Ding, Jaime E. Forero-Romero, Hu Zou, Yuan-sen Ting, Matthew Pieri, Steven Ahlen, David Alexander, David Brooks, Arjun Dey, Andreu Font-Ribera, Satya Gontcho A. Gontcho, Klaus Honscheid, Martin Landriau, Axel de la Macorra, Mariana Vargas Magana, Aaron Meisner, Ramon Miquel, Michael Schubnell, Gregory Tarlé, Zhimin Zhou   +25 more
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Dust-regulated galaxy formation and evolution: a new chemodynamical model with live dust particles [PDF]

, 2015
Interstellar dust plays decisive roles in the conversion of neutral to molecular hydrogen (H_2), the thermodynamical evolution of interstellar medium (ISM), and the modification of spectral energy distributions (SEDs) of galaxies.
K. Bekki
semanticscholar   +1 more source