Results 61 to 70 of about 1,957 (169)

CECILIA: Ultradeep Rest-optical Spectra of Faint Galaxies at Cosmic Noon

The Astrophysical Journal Letters
Intrinsically faint galaxies at z  ∼ 2–3 offer critical insights into early galaxy formation, tracing low-metallicity, low-mass systems during cosmic noon and serving as analogs to reionization-era galaxies. We present ultradeep JWST/NIRSpec spectroscopy
Menelaos Raptis, Ryan F. Trainor, Allison L. Strom, Gwen C. Rudie, Noah S. J. Rogers, Charles C. Steidel, Michael V. Maseda, Caroline von Raesfeld, Nathalie A. Korhonen Cuestas   +8 more
doaj   +1 more source

Estimating Dust Attenuation from Galactic Spectra. III. Radial Variations of Dust Attenuation Scaling Relations in MaNGA Galaxies

The Astrophysical Journal
We investigate the radial dependence of the scaling relations of dust attenuation in nearby galaxies using integral field spectroscopy data from MaNGA.
Niu Li, Cheng Li
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JADES: Rest-frame UV-to-NIR Size Evolution of Massive Quiescent Galaxies from Redshift z = 5 to z = 0.5

The Astrophysical Journal
We present the UV-to-near-IR (NIR) size evolution of a sample of 161 quiescent galaxies with M _*  > 10 ^10 M _⊙ over 0.5  3 quiescent galaxies in our sample are very compact, with mass surface densities Σ _e  ≳ 10 ^10 M _⊙ kpc ^−2 , and their R _e are ...
Zhiyuan Ji, Christina C. Williams, Katherine A. Suess, Sandro Tacchella, Benjamin D. Johnson, Brant Robertson, Stacey Alberts, William M. Baker, Stefi Baum, Rachana Bhatawdekar, Nina Bonaventura, Kristan Boyett, Andrew J. Bunker, Stefano Carniani, Stephane Charlot, Zuyi Chen, Jacopo Chevallard, Emma Curtis-Lake, Francesco D’Eugenio, Anna de Graaff, Christa DeCoursey, Eiichi Egami, Daniel J. Eisenstein, Kevin Hainline, Ryan Hausen, Jakob M. Helton, Tobias J. Looser, Jianwei Lyu, Roberto Maiolino, Michael V. Maseda, Erica Nelson, George Rieke, Marcia Rieke, Hans-Walter Rix, Lester Sandles, Fengwu Sun, Hannah Übler, Christopher N. A. Willmer, Chris Willott, Joris Witstok   +39 more
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The influence of the cosmic web on the properties of dwarf galaxies in the Fornax-Eridanus supercluster

Astronomy & Astrophysics
Context. In this paper, we analyse a sample of low surface brightness dwarf galaxies with a mean effective surface brightness of μ̅e,g > 24.2 μ ¯ e , g > 24.2 $ \bar{\mu}_{e,g} > 24.2 $ mag arcsec−2, detected using interpretable ...
Xu X., Ravichandran P., Peletier R. F., Junais, Raj M. A., Awad P., Smith R.   +6 more
doaj   +1 more source

Dwarf Galaxies with Radio-excess Active Galactic Nuclei in the Very Large Array Sky Survey

The Astrophysical Journal
We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS).
John-Michael Eberhard, Amy E. Reines, Hansung B. Gim, Jeremy Darling, Jenny E. Greene   +4 more
doaj   +1 more source

ON THE E/P-COSMIC RAYS AS MEDIATORS OF VISCOUS FORCES THAT CREATE SHOCK AND VORTEX STRUCTURES IN THE RADIO GALAXIES

Odessa Astronomical Publications, 2016
There are for the galaxies of FRII type (like Cygnus A) studied a number of hydrodynamic and kinetic processes to transport of magnetized plasma with cosmic rays, and a stratification process of RG-lobe because of e\p-cosmic rays.
N. O. Tsvyk
doaj   +1 more source

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
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Star-forming compact groups: Tracing the early evolutionary stages of compact group environments

Astronomy & Astrophysics
Context. In the context of pre-processing – a scenario where galaxies quench their star formation within substructures before falling into clusters – we investigate the impact of environment on the physical and morphological properties of galaxies in ...
Ortiz-Gómez S., Torres-Flores S., Monachesi A., Montaguth G. P., Véliz Astudillo S., Mendes de Oliveira C., Olave-Rojas D. E., Lima-Dias C., Demarco R., Pallero D., Lopes A. R., Cortesi A., Telles E., Kanaan A., Ribeiro T., Schoenell W.   +15 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
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266 E+A galaxies selected from the Sloan Digital Sky Survey Data Release 2: the origin of E+A galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2005
E+A galaxies are characterized as a galaxy with strong Balmer absorption lines but without any [OII] nor H$α$ emission lines. The existence of strong Balmer absorption lines indicates that E+A galaxies have experienced starburst within recent one Gyr.
openaire   +2 more sources