Results 91 to 100 of about 30,724 (219)

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

Galáxias post-starburst no universo local [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014Galáxias post-starburst (PSB) apresentam espectros com fortes linhas de absorção na série ...
Werle, Ariel
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Galaxy And Mass Assembly (GAMA) : testing galaxy formation models through the most massive galaxies in the Universe [PDF]

, 2014
We have analysed the growth of Brightest Group Galaxies and Brightest Cluster Galaxies (BGGs/BCGs) over the last 3 billion years using a large sample of 883 galaxies from the Galaxy And Mass Assembly survey. By comparing the stellar mass of BGGs and BCGs
Loveday, J, Baldry, I., Kampen, E. van, Pimbblet, K. A., Ponman, T., Gunawardhana, M. L. P., Couch, W.J., Lara-Lopez, M. A., Lidman, Christopher, Liske, J, Conselice, C. J., Couch, Warrick, Taylor, E., Graham, A.W., López-Sánchez, A.R., Bland-Hawthorn, Jonathan, Cluver, M, Bauer, A. E., Oliva-Altamirano, Paola, Colless, Matthew, Sharp, Rob, Oliva-Altamirano, P., Phillipps, Steven, Hopkins, A. M., Brough, S., Loveday, J., Gunawardhana, Madusha, Liske, J., Lara-López, M.A., Van Kampen, E, Mahajan, S., Edge, Alistair, Robotham, A, Edge, A.C., Cameron, E., Pimbblet, Kevin, Edge, A. C., Robotham, A. S. G., van Kampen, E., Phillipps, S., Bauer, A.E., Sharp, R.G., Bland-Hawthorn, J., Conselice, Christopher, Robotham, A.S.G., Graham, A. W., Peacock, John, Gunawardhana, M.L.P., Taylor, Edward, Sharp, R. G., Lidman, C., Cluver, M., Cameron, Ewan, Lopez-Sanchez, Angel, Hopkins, A.M., Driver, Simon, Couch, W. J., Driver, S., Colless, M., Lopez-Sanchez, A. R., Ponman, Trevor, Conselice, C.J., Brough, Sarah, Baldry, Ivan, Pimbblet, K.A., Peacock, J., Mahajan, Smriti, Graham, Alister, Lara-Lopez, Maritza, Hopkins, Andrew, Bauer, A   +70 more
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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
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
doaj   +1 more source

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

VizieR Online Data Catalog: MCS J1206.2-0847 galaxies spectral classification

, 2015
In the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACS J1206.2-0847 at z∼0.44 and probe its substructure in the projected phase space through the spectrophotometric properties of a ...
Gobat R., Bartosch Caminha G., Verdugo M., Zitrin A., Grillo C., Scodeggio M., Mercurio A., Rosati P., Coe D., Umetsu K., Kuchner U., Monna A., Girardi M., Boschin W., Tozzi P., Munari E., Demarco R., Lemze D., Seitz S., Postman M., Biviano A., Presotto V., De Lucia G., Fritz A., Brescia M., Balestra I., Monaco P., Maier C., Ziegler B., Annunziatella M., Czoske O., Nonino M., Koekemoer A., Meneghetti M., Kelson D., Lombardi M., Medezinski E., Sartoris B.   +37 more
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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

An investigation of the active galaxies M82 and NGC 5128 [PDF]

, 1995
In this thesis we present multi-waveband imaging polarimetry and spectropolarime- try of the starburst galaxy M82 and multi-waveband imaging polarimetry of the active galaxy NGC 5128. A review of previous studies of these galaxies is given.
Foley, Neasa
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