Results 71 to 80 of about 37,734 (223)

The Abundance of X-Shaped Radio Sources I. VLA Survey of 52 Sources With Off-Axis Distortions [PDF]

, 2015
Cheung identified a sample of 100 candidate X-shaped radio galaxies using the NRAO FIRST survey; these are small-axial-ratio extended radio sources with off-axis emission.
Cohen, Jake P., Lu, Jing, Roberts, David H., Saripalli, Lakshmi, Subrahmanyan, Ravi   +4 more
core   +2 more sources

The CHILES Continuum and Polarization Survey. II. Radio Continuum Source Catalog and Radio Properties

The Astronomical Journal
The COSMOS H I Large Extragalactic Survey (CHILES) Continuum and Polarization survey is an ultradeep continuum imaging study of the COSMOS field conducted using the Karl G. Jansky Very Large Array.
Hansung B. Gim, Min S. Yun, Nicholas M. Luber, Emmanuel Momjian, D. J. Pisano, Kelley M. Hess, Julia Blue Bird, Lucas Hunt   +7 more
doaj   +1 more source

Extragalactic radio sources [PDF]

The standard model for extragalactic variable radio sources comprises an isotropically expanding plasmoid with frozen magnetic flux and an electron distribution which evolves adiabatically.
Sturrock, P. A.
core   +1 more source

Predictions for high-frequency radio surveys of extragalactic sources

, 2004
We present detailed predictions of the contributions of the various source populations to the counts at frequencies of tens of GHz. New evolutionary models are worked out for flat-spectrum radio quasars, BL Lac objects, and steep-spectrum sources. Source
Aghanim, Agol, Aitken, Allen, Argüeso, Baganoff, Barbosa, Bennett, Blandford, Bondi, Bryan, Carlstrom, Chapman, Ciardi, Colafrancesco, Condon, D. Mesa, Dallacasa, Dawson, De Zotti, Di Matteo, di Matteo, Dunlop, Dupac, Eke, Ettori, Fabian, Fanti, Fomalont, G. De Zotti, Galliano, Garrett, Gavazzi, Gehrels, Gnedin, Grainge, Granato, Granato, Gregory, Gregory, Gruppioni, Helou, Herranz, Holder, Ikebe, Ikeuchi, J. González-Nuevo, Jackson, Komatsu, Kovac, Kühr, L. Silva, L. Toffolatti, Lapi, Martínez-González, Mason, Massardi, Morganti, Mészáros, Natarajan, Natarajan, O'Dea, Oh, P. Mazzotta, Pauliny-Toth, Pauliny-Toth, Peacock, Perna, Pierpaoli, Pierpaoli, Platania, Polatidis, R. Ricci, Readhead, Rees, Rees, Refregier, Rosa-González, Sadler, Seaton, Sheth, Silva, Snellen, Sunyaev, Taylor, Taylor, Toffolatti, Toffolatti, Trushkin, Tschager, Vielva, Waldram, Waxman, White, Wijers   +94 more
core   +1 more source

The extragalactic radio-source population at 95 GHz

, 2008
We have used the Australia Telescope Compact Array (ATCA) at 95GHz to carry out continuum observations of 130 extragalactic radio sources selected from the Australia Telescope 20GHz (AT20G) survey. Over 90% of these sources are detected at 95 GHz, and we
Browne I. W. A., Carole A. Jackson, Cornwell T. J., Elaine M. Sadler, Gianfranco De Zotti, Kellermann K. I., Lopez-Caniego M., Patnaik A. R., Robert J. Sault, Roberto Ricci, Ronald D. Ekers, Scott D., Steppe H., Thompson A.   +13 more
core   +3 more sources

A Deep VLA Search for a Persistent Radio Counterpart to the One-off FRB 20250316A

The Astrophysical Journal Letters
Fast radio burst (FRB) 20250316A, detected by CHIME on 2025 March 16 with a fluence of 1.7 ± 0.1 kJy ms and a dispersion measure of 161.3 ± 0.4 pc cm ^−3 , ranks among the brightest extragalactic FRBs at ∼40 Mpc. We obtain deep Karl G.
Tao An, Ailing Wang, Yu-Chen Huang, Jia-Pei Feng, Yuanqi Liu, Zhongli Zhang, Zi-Gao Dai   +6 more
doaj   +1 more source

STUDY OF EFFECTS OF LUNAR TIDAL WAVE PASSAGE IN UPPER ATMOSPHERE OF EARTH ACCORDING TO MONITORING DATA AT RADIO TELESCOPE «URAN-4» RI NANU

Odessa Astronomical Publications, 2019
The paper examines data on the effects of the lunar tidal wave in the Earth 's upper atmosphere on the observed flux of radio sources. Monitoring of the fluxes of powerful galactic and extragalactic radio sources is carried out at the URAN-4 radio ...
M. I. Ryabov, L. I. Sobitnyak
doaj   +1 more source

The Variability of Persistent Radio Sources of Fast Radio Bursts

The Astrophysical Journal
Over 700 bright millisecond-duration radio transients, known as fast radio bursts (FRBs), have been identified to date. Nevertheless, the origin of FRBs remains unknown.
Ai Yuan Yang, Yi Feng, Chao-Wei Tsai, Di Li, Hui Shi, Pei Wang, Yuan-Pei Yang, Yong-Kun Zhang, Chen-Hui Niu, Ju-Mei Yao, Yu-Zhu Cui, Ren-Zhi Su, Xiao-Feng Li, Jun-Shuo Zhang, Yu-Hao Zhu, W. D. Cotton   +15 more
doaj   +1 more source

Unified model for cosmic rays above $10^{17}$ eV and the diffuse gamma-ray and neutrino backgrounds

, 2015
We investigate how the extragalactic proton component derived within the "escape model" can be explained by astrophysical sources. We consider as possible cosmic ray (CR) sources normal/starburst galaxies and radio-loud active galactic nuclei (AGN).
Giacinti, G., Kachelriess, M., Kalashev, O., Neronov, A., Semikoz, D. V.   +4 more
core   +1 more source

Induced Compton Scattering in Gigahertz Peak Spectrum Sources

, 1997
We revisit the shocked shell model for the class of Active Galactic Nuclei known as Gigahertz Peak Spectrum sources, incorporating new observational data on the radiation brightness temperatures. We argue that in addition to free-free absorption, induced
Coppi P., Fanti R., Geoffrey V. Bicknell, Levinson A., Michael A. Dopita, Sunyaev R. A., Zdenka Kuncic   +6 more
core   +1 more source