Results 21 to 30 of about 97,087 (224)

Radio galaxies: unification and dust properties [PDF]

New Astronomy Reviews, 2003
The 2002 status of unification models for extragalactic radio sources is examined, with particular emphasis on the dust properties of these objects.
Barthel, P, van Bemmel, I
openaire   +3 more sources

Radio emission of Shakhbazian Compact Galaxy Groups [PDF]

, 1999
Three hundred fifty three radio sources from the NRAO VLA Sky Survey (NVSS) (Condon et al. 1998) and the FIRST Survey (White et al. 1997}, are detected in the areas of 179 Shakhbazian Compact Groups (ShCGs) of galaxies.
Amirkhanian A. S., Amirkhanian A. S., Baier F. W., Baldwin J. E., Barnes J., Cohen A. M., de Ruiter H. R., del Olmo A., H. M. Tovmassian, H. Tiersch, Kodaira K., Kodaira K., Kodaira K., Lynds C. R., Mendes de Oliveira C., Menon T. K., Menon T. K., O. V. Verkhodanov, Saracco P., Shakhbazian R. K., Stoll D., Stoll D., Tiersch H., Tiersch H., Tovmassian H. M., Tovmassian H. M., Tovmassian H. M., Tovmassian H. M., V. H. Chavushyan, Vennik J., Walke D. G.   +30 more
core   +2 more sources

General Physical Properties of Gamma-Ray-emitting Radio Galaxies

The Astrophysical Journal Supplement Series, 2023
We study the radio galaxies with known redshifts detected by the Fermi satellite after 10 yr of data (4FGL-DR2). We use a one-zone leptonic model to fit the quasi-simultaneous multiwavelength data of these radio galaxies and study the distributions of ...
Yongyun Chen, Qiusheng Gu, Junhui Fan, Xiaoling Yu, Nan Ding, Dingrong Xiong, Xiaotong Guo   +6 more
doaj   +1 more source

Radio galaxy zoo EMU: towards a semantic radio galaxy morphology taxonomy

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We present a novel natural language processing (NLP) approach to deriving plain English descriptors for science cases otherwise restricted by obfuscating technical terminology. We address the limitations of common radio galaxy morphology classifications by applying this approach.
Micah Bowles, Hongming Tang, Eleni Vardoulaki, Emma L Alexander, Yan Luo, Lawrence Rudnick, Mike Walmsley, Fiona Porter, Anna M M Scaife, Inigo Val Slijepcevic, Elizabeth A K Adams, Alexander Drabent, Thomas Dugdale, Gülay Gürkan, Andrew M Hopkins, Eric F Jimenez-Andrade, Denis A Leahy, Ray P Norris, Syed Faisal ur Rahman, Xichang Ouyang, Gary Segal, Stanislav S Shabala, O Ivy Wong   +22 more
openaire   +6 more sources

Morphological-based Analyses for Parameterizing Symmetry in Radio Galaxies

The Astronomical Journal, 2023
The morphology of radio galaxies can provide significant clues to describe the formation and evolution of galaxies in the Universe. Here, we aim to extract the morphological parameters of radio galaxies and define symmetry criteria as some of the ...
Mohsen Javaherian, Halime Miraghaei, Hooman Moradpour   +2 more
doaj   +1 more source

What is driving the evolution of the far-infrared radio correlation? [PDF]

Zbornik Matice Srpske za Prirodne Nauke, 2019
Far infrared-radio correlation represents a linear relationship between far-infrared (FIR) and radio emission in star-forming galaxies. Previous observations have confirmed that this correlation is maintained over a large range of redshift and ...
Pavlović Marina S., Prodanović Tijana S.   +1 more
doaj   +1 more source

Does the fir-radio correlation evolve with redshift in irregular and disk galaxies? [PDF]

Serbian Astronomical Journal, 2021
It was confirmed that there is a strong linear correlation between the thermal far-infrared (FIR) and non-thermal radio emission of the star-forming galaxies.
Pavlović M.S.
doaj   +1 more source

Radio Galaxy Zoo: A Search for Hybrid Morphology Radio Galaxies

The Astronomical Journal, 2017
Abstract Hybrid morphology radio sources (HyMoRS) are a rare type of radio galaxy that display different Fanaroff–Riley classes on opposite sides of their nuclei. To enhance the statistical analysis of HyMoRS, we embarked on a large-scale search of these sources within the international citizen science project, Radio Galaxy Zoo (RGZ ...
A. D. Kapińska, I. Terentev, O. I. Wong, S. S. Shabala, H. Andernach, L. Rudnick, L. Storer, J. K. Banfield, K. W. Willett, F. de Gasperin, C. J. Lintott, Á. R. López-Sánchez, E. Middelberg, R. P. Norris, K. Schawinski, N. Seymour, B. Simmons   +16 more
openaire   +6 more sources

On the environments of giant radio galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We test the hypothesis that environments play a key role in enabling the growth of enormous radio structures spanning more than 700 kpc, an extreme population of radio galaxies called giant radio galaxies (GRGs). To achieve this, we explore (1) the relationships between the occurrence of GRGs and the surface number density of ...
Ting-Wen Lan 藍鼎文, J Xavier Prochaska   +1 more
openaire   +2 more sources

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies

The Astrophysical Journal, 2023
We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff, Enrique Lopez-Rodriguez, Rainer Beck, Susan E. Clark, Evangelia Ntormousi, Konstantinos Tassis, Sergio Martin-Alvarez, Mehrnoosh Tahani, Daniel A. Dale, Ignacio del Moral-Castro, Julia Roman-Duval, Pamela M. Marcum, John E. Beckman, Kandaswamy Subramanian, Sarah Eftekharzadeh, Leslie Proudfit   +15 more
doaj   +1 more source