Results 121 to 130 of about 10,116 (179)

Quenching through Tidal Gas Removal: Molecular Gas and Star Formation in Tidal Tails of z ∼ 0.7 Post-starburst Galaxies

The Astrophysical Journal
The active suppression of star formation in galaxies is critical for preventing the growth of overly massive systems and explaining the formation of present-day elliptical galaxies.
Vincenzo R. D’Onofrio, Justin S. Spilker, Rachel Bezanson, Robert Feldmann, Andy D. Goulding, Jenny E. Greene, Mariska Kriek, Yuanze Luo, Desika Narayanan, David J. Setton, Katherine A. Suess, Yunchong Zhang, Pengpei Zhu   +12 more
doaj   +1 more source

Simulating High-redshift Galaxies: Enhancing UV Luminosity with Star Formation Efficiency and a Top-heavy IMF

The Astrophysical Journal
Recent findings from photometric and spectroscopic JWST surveys have identified examples of high-redshift galaxies at z  ≳ 10. These high- z galaxies appear to form much earlier and exhibit greater UV luminosity than predicted by theoretical work.
Tae Bong Jeong, Myoungwon Jeon, Hyunmi Song, Volker Bromm   +3 more
doaj   +1 more source

Dead or Alive? How Bursty Star Formation and Patchy Dust Can Cause Temporary Quiescence in High-redshift Galaxies

The Astrophysical Journal
The recent discovery of a galaxy at z = 7.3 with undetected optical emission lines and a blue UV-to-optical continuum ratio in JWST spectroscopy is surprising and needs to be explained physically.
Andreas L. Faisst, Takahiro Morishita
doaj   +1 more source

A Census of Quiescent Galaxies across 0.5 < z < 8 with JWST/MIRI: Mass-dependent Number Density Evolution of Quiescent Galaxies in the Early Universe

The Astrophysical Journal Letters
Recent JWST observations have revealed a large population of quiescent galaxies (QGs) at high redshift ( z  ∼ 4–8), challenging current models of early galaxy formation and quenching. Accurate number density estimates are crucial but remain uncertain. We
Tiancheng Yang, Tao Wang, Ke Xu, Hanwen Sun, Luwenjia Zhou, Lizhi Xie, Gabriella De Lucia, Claudia del P. Lagos, Kai Wang, Fabio Fontanot, Qi Guo, Yuxuan Wu, Shiying Lu, Longyue Chen, Michaela Hirschmann   +14 more
doaj   +1 more source

The LEGA-C galaxy survey: Multiple quenching channels for quiescent galaxies at z ∼ 1

Astronomy & Astrophysics
Aims. We analyzed the sizes and star formation histories (SFHs) of 2908 galaxies with M★ ≥ 109 M⊙ at 0.6 
Nersesian Angelos, Kaushal Yasha, Martorano Marco, van der Wel Arjen, Wu Po-Feng, Bezanson Rachel, Bell Eric F., D’Eugenio Francesco, Gallazzi Anna R., Leja Joel, Zibetti Stefano, Tacchella Sandro   +11 more
doaj   +1 more source

The FENIKS Survey: Spectroscopic Confirmation of Massive Quiescent Galaxies at z ∼ 3–5

The Astrophysical Journal
The measured ages of massive, quiescent galaxies at z ∼ 3–4 imply that massive galaxies quench as early as z ∼ 6. While the number of spectroscopic confirmations of quiescent galaxies at z < 3 has increased over the years, there are only a handful at z >
Jacqueline Antwi-Danso, Casey Papovich, James Esdaile, Themiya Nanayakkara, Karl Glazebrook, Taylor A. Hutchison, Katherine E. Whitaker, Z. Cemile Marsan, Ruben J. Diaz, Danilo Marchesini, Adam Muzzin, Kim-Vy H. Tran, David J. Setton, Yasha Kaushal, Joshua S. Speagle, Justin Cole   +15 more
doaj   +1 more source

The molecular gas content throughout the low-z merger sequence

The Open Journal of Astrophysics
Exploiting IRAM 30 m CO spectroscopy, we find that SDSS post-merger galaxies display gas fractions and depletion times enhanced by 25-50\%, a mildly increased CO excitation, and standard molecular-to-atomic gas ratios, compared to non-interacting ...
Mark T. Sargent, S. L. Ellison, J. T. Mendel, A. Saintonge, D. Cs. Molnár, T. Schwandt, J. M. Scudder, G. Violino   +7 more
doaj   +1 more source

The Fate of the Interstellar Medium in Early-type Galaxies. III. The Mechanism of Interstellar Medium Removal and the Quenching of Star Formation

The Astrophysical Journal
Understanding how galaxies quench their star formation is crucial for studies of galaxy evolution. Quenching is related to a decrease of cold gas. In the first paper we showed that the dust removal timescale in early-type galaxies (ETGs) is about 2.5 Gyr.
Michał J. Michałowski, C. Gall, J. Hjorth, D. T. Frayer, A.-L. Tsai, K. Rowlands, T. T. Takeuchi, A. Leśniewska, D. Behrendt, N. Bourne, D. H. Hughes, M. P. Koprowski, J. Nadolny, O. Ryzhov, M. Solar, E. Spring, J. Zavala, P. Bartczak   +17 more
doaj   +1 more source

High-redshift star formation in the Atacama large millimetre/submillimetre array era. [PDF]

R Soc Open Sci, 2020
Hodge JA, da Cunha E.
europepmc   +1 more source

Extreme Starbursts in the Local Universe

, 2010
The "Extreme starbursts in the local universe" workshop was held at the Insituto de Astrofisica de Andalucia in Granada, Spain on 21-25 June 2010. Bearing in mind the advent of a new generation of facilities such as JWST, Herschel, ALMA, eVLA and eMerlin,
Alberdi, A., Almeida, C. Ramos, Alonso-Herrero, A., Bellocchi, E., Brotherton, M., Caballero, D. Miralles, Canalizo, G., Colina, L., Cortijo, C., Delgado, R. M. Gonzalez, Delgado-Serrano, R., Di Matteo, P., Diaz-Santos, T., Fernandes, R. Cid, Fischer, J., Garcia-Burillo, S., Gardini, A., Goncalves, T. S., Hammer, F., Heckman, T., Hopkins, P., Imanishi, M., Jogee, S., Kewley, L., Lazarova, M., Lopez, J. Piqueras, Menendez-Delmestre, K., Monreal-Ibero, A., Overzier, R., Pasquali, A., Perez, E., Perez-González, P., Rodrigues, M., Rothberg, B., Rupke, D., Sanchez, S. F., Spoon, H., Swinbank, M., Tadhunter, C., Tan, J. C., Torres, M. A. Perez, Turner, J., Veilleux, S., Villar-Martin, M., Weiner, B., Wild, V., Zaurin, J. Rodriguez   +46 more
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