Results 141 to 150 of about 97,087 (224)

Clustering of Radio Galaxies and Quasars

, 2009
12 pages, 13 Figures, submitted to ...
Donoso, E., Li, C., Kauffmann, G., Best, P., Heckman, T.   +4 more
openaire   +3 more sources

Exploring Neutral Hydrogen in Radio MOlecular Hydrogen Emission Galaxies (MOHEGs) and Prospects with the SKA

The Astrophysical Journal
Empirical studies of cold gas content are essential for comprehending the star formation activities and evolution in galaxies. However, it is not straightforward to understand these processes because they depend on various physical properties of the ...
Sai Wagh, Mamta Pandey-Pommier, Nirupam Roy, Md Rashid, Alexandre Marcowith, Chinnathambi Muthumariappan, Ramya Sethuram, Subhashis Roy, Bruno Guiderdoni   +8 more
doaj   +1 more source

Very high-resolution radio observations of HzRGs

, 2005
We report on first results of an ongoing effort to image a small sample of high-redshift radio galaxies (HzRGs) with milliarcsecond (mas) resolution, using very-long-baseline interferometry (VLBI) techniques.
De Breuck, Carlos, Miley, George, Perez-Torres, Miguel A., van Breugel, Wil   +3 more
core   +1 more source

What Triggers Radio Galaxies?

, 2006
We are investigating possible triggering scenarios which may give rise to powerful jetted active galaxies such as classical double radio galaxies. Important clues come from studying those objects which have most recently been triggered. The newly discovered 'Youth-Redshift Degeneracy' for classical double radio galaxies means that the highest redshift ...
Cruz, M, Blundell, K
openaire   +1 more source

Optical- and UV-continuum Morphologies of Compact Radio Source Hosts

The Astrophysical Journal
We present the first systematic search for UV signatures from radio source-driven active galactic nuclei (AGN) feedback in Compact Steep Spectrum (CSS) radio galaxies. Owing to their characteristic sub-galactic jets (1–20 kpc projected linear sizes), CSS
C. Duggal, C. P. O’Dea, S. A. Baum, A. Labiano, C. Tadhunter, D. M. Worrall, R. Morganti, G. R. Tremblay, D. Dicken   +8 more
doaj   +1 more source

Linking Fermi blazars and radio galaxies through accretion and jet radiation mechanisms

Astronomy & Astrophysics
Context. Based on the classical unification, blazars, namely BL Lacertae objects (BL Lacs) and flat-spectrum radio quasars (FSRQs), are believed to correspond to radio galaxies, when observed at small jet viewing angles. Aims.
Ye Xu-Hong, Baldi Ranieri D., Yang Wen-Xin, Zhu Jing-Tian, Bastieri Denis, Bachev Rumen S., Strigachev Anton A., Fan Jun-Hui   +7 more
doaj   +1 more source

Nuclear and Star Formation Activities in Nearby Galaxies: Roles of Gas Supply and Active Galactic Nucleus Feedback

The Astrophysical Journal
We analyze a sample of  ~113,000 galaxies ( z  
Huynh Anh N. Le, Yongquan Xue
doaj   +1 more source

UNIONS Optical Identifications for VLASS Radio Sources in the Euclid Sky (UNVEIL). I. A Catalog of ∼146,000 Radio Galaxies up to z ∼ 5

The Astrophysical Journal Supplement Series
We present the results of optical identifications for Very Large Array Sky Survey (VLASS) radio sources employing the Ultraviolet Near Infrared Optical Northern Survey (UNIONS).
Yuxing Zhong, Kohei Ichikawa, Hendrik Hildebrandt, Stephen Gwyn, Akio K. Inoue, Masafusa Onoue, Masatoshi Imanishi, Taketo Yoshida, Martin Kilbinger, Thomas de Boer, Gregory S. H. Paek, Yoshiki Matsuoka, Tohru Nagao, Yoshiki Toba   +13 more
doaj   +1 more source

Author Correction: The distribution and lifetime of powerful radio galaxies as a function of environment and redshift. [PDF]

Sci Rep, 2019
Garofalo D, Singh CB, Zack A.
europepmc   +1 more source

Radio-only and Radio-to-far-ultraviolet Spectral Energy Distribution Modeling of 14 ULIRGs: Insights into the Global Properties of Infrared Bright Galaxies

The Astrophysical Journal
We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz).
Subhrata Dey, Arti Goyal, Katarzyna Małek, Tanio Díaz-Santos   +3 more
doaj   +1 more source