Results 31 to 40 of about 1,091,526 (300)

Kinematics and physical conditions of HI in nearby radio sources. The last survey of the old Westerbork Synthesis Radio Telescope [PDF]

, 2017
We present an analysis of the properties of neutral hydrogen (HI) in 248 nearby (0.0230$ mJy and for which optical spectroscopy is available. The observations were carried out with the Westerbork Synthesis Radio Telescope as the last large project before
Geréb, Katinka, Maccagni, Filippo M., Maddox, Natasha, Morganti, Raffaella, Oosterloo, Tom A.   +4 more
core   +3 more sources

Radio Sources in the 2dF Galaxy Redshift Survey I. Radio Source Populations [PDF]

Publications of the Astronomical Society of Australia, 1999
AbstractWe present the first results from a study of the radio continuum properties of galaxies in the 2dF Galaxy Redshift Survey, (2dFGRS) based on thirty 2dF fields covering a total area of about 100 deg2. About 1·5% of galaxies with bJ < 19·4 mag. are detected as radio continuum sources in the NRAO VLA Sky Survey (NVSS). Of these, roughly 40% are
Sadler, Elaine M., McIntyre, V. J., Jackson, C. A., Cannon, R. D.   +3 more
openaire   +2 more sources

Extragalactic Astrophysics With Next-Generation CMB Experiments

Frontiers in Astronomy and Space Sciences, 2019
Planck, SPT, and ACT surveys have clearly demonstrated that Cosmic Microwave Background (CMB) experiments, while optimized for cosmological measurements, have made important contributions to the field of extragalactic astrophysics in the last decade ...
Gianfranco De Zotti, Matteo Bonato, Matteo Bonato, Matteo Bonato, Mattia Negrello, Tiziana Trombetti, Carlo Burigana, Carlo Burigana, Carlo Burigana, Diego Herranz, Diego Herranz, Marcos López-Caniego, Zhen-Yi Cai, Laura Bonavera, Joaquin González-Nuevo   +14 more
doaj   +1 more source

Galaxy Cluster Environments of Radio Sources

, 2011
Using the Sloan Digital Sky Survey (SDSS) and the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) catalogs, we examined the optical environments around double-lobed radio sources. Previous studies have shown that multi-component radio sources
Abazajian, Ascasibar, Bahcall, Blanc, Blanton, Blanton, Blanton, Blanton, Blanton, Blanton, Bower, Bradač, Brodwin, Budavári, Burns, Clarke, Condon, Croft, Csabai, Daddi, Dalton, Deltorn, Dickinson, D’Onghia, Elizabeth L. Blanton, Fanaroff, Gal, Garilli, Gladders, Gladders, Gladders, Gómez, Ivezić, Jee, Joshua D. Wing, Koester, Koester, Krick, Lin, Lin, Lin, Lumsden, Martini, McMahon, Menanteau, Miller, Oklopčić, Ostrander, Owen, Oyaizu, Proctor, Reiprich, Roettiger, Sarazin, Schlegel, Smith, Smolčić, Vanderlinde, Vikhlinin, Voges, Wen, York, Zirbel, Zwicky   +63 more
core   +1 more source

Multiband Study of Radio Sources of the RCR Catalogue with Virtual Observatory Tools

Open Astronomy, 2012
We present early results of our multiband study of the RATAN Cold Revised (RCR) catalogue obtained from seven cycles of the “Cold” survey carried with the RATAN-600 radio telescope at 7.6 cm in 1980-1999, at the declination of the SS 433 source.
Zhelenkova O. P., Soboleva N. S., Majorova E. K., Temirova A. V.   +3 more
doaj   +1 more source

Optical and radio properties of extragalactic radio sources with recurrent jet activity

, 2017
We present a sample of 74 radio sources with recurrent jet activity. The sample consists of 67 galaxies, 2 quasars and 5 unidentified sources, selected from the published data or are newly recognized.
Jamrozy, M., Kozieł-Wierzbowska, D., Kuźmicz, A., Weżgowiec, M.   +3 more
core   +1 more source

Multiwavelength characterization of faint ultra steep spectrum radio sources: a search for high-redshift radio galaxies [PDF]

, 2014
Context. Ultra steep spectrum (USS) radio sources are one of the efficient tracers of powerful high-z radio galaxies (HzRGs). In contrast to searches for powerful HzRGs from radio surveys of moderate depths, fainter USS samples derived from deeper radio ...
A. Basu, A. Beelen, A. Omont, Adami, Afonso, Afonso, Alonso-Herrero, Banerji, Bardelli, Barmby, Basu, Best, Best, Blundell, Blundell, Bondi, Bondi, Bornancini, Bornancini, Brammer, Broderick, Brookes, Brookes, Bryant, C. H. Ishwara-Chandra, Chambers, Chuter, Ciliegi, Cohen, Cohen, Collier, Condon, Croton, Cruz, D. Farrah, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, Donley, Donley, Donley, Donley, Dunlop, Eales, Eales, Elvis, Fanti, Fiolet, Galametz, Gardner, Geach, Griffith, Gürkan, Hardcastle, Heesen, Hewett, Huynh, Ibar, Ibar, Ilbert, Intema, Ishwara-Chandra, Jarvis, Jarvis, Jarvis, Jarvis, Jarvis, Jiang, K. McAlpine, Ker, Klamer, Klamer, Kodama, Krolik, Lacy, Lawrence, Le Fèvre, Le Fèvre, Lee, Leroy, M. Lacy, Mangalam, Martínez-Sansigre, Martínez-Sansigre, Mauduit, McAlpine, McLure, Middelberg, Middelberg, Miley, Norris, Norris, Norris, Norris, Norris, Pacaud, Pei, Polletta, R. J. Ivison, Rieke, Risaliti, Roettgering, S. Oliver, S. Sirothia, Sajina, Sajina, Schlegel, Seymour, Seymour, Simpson, Simpson, Sirothia, Smail, Smolčić, Stern, Stevens, Tasse, Tasse, Tasse, Tinti, V. Singh, van Breukelen, van Haarlem, Venemans, Waddington, Wieringa, Willott, Wilman, Wilman, Y. Wadadekar   +133 more
core   +3 more sources

ON THE EVOLUTION OF THE CORES OF RADIO SOURCES AND THEIR EXTENDED RADIO EMISSION [PDF]

The Astrophysical Journal, 2011
10 pages, 9 figures and 1 table, accepted for publication in the Astrophysical ...
Yuan, Zunli, Wang, Jiancheng
openaire   +2 more sources

A CHIME/FRB Study of Burst Rate and Morphological Evolution of the Periodically Repeating FRB 20180916B

The Astrophysical Journal, 2023
FRB 20180916B is a repeating fast radio burst (FRB) with a 16.3 day periodicity in its activity. In this study, we present morphological properties of 60 FRB 20180916B bursts detected by CHIME/FRB between 2018 August and 2021 December.
Ketan R. Sand, Daniela Breitman, Daniele Michilli, Victoria M. Kaspi, Pragya Chawla, Emmanuel Fonseca, Ryan Mckinven, Kenzie Nimmo, Ziggy Pleunis, Kaitlyn Shin, Bridget C. Andersen, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Tomas Cassanelli, Amanda M. Cook, Alice P. Curtin, Fengqiu Adam Dong, Gwendolyn M. Eadie, B. M. Gaensler, Jane Kaczmarek, Adam Lanman, Calvin Leung, Kiyoshi W. Masui, Mubdi Rahman, Ayush Pandhi, Aaron B. Pearlman, Emily Petroff, Masoud Rafiei-Ravandi, Paul Scholz, Vishwangi Shah, Kendrick Smith, Ingrid Stairs, David C. Stenning   +33 more
doaj   +1 more source

The Radio/Optical Catalog of the SSA13 Field [PDF]

, 2006
We present a 1.4-GHz catalog of 810 radio sources (560 sources in the complete sample) with 1.8" resolution found within a 17' radius in the SSA13 field (RA=13h12m,DEC=42d38').
A. J. Barger, Benn C. R., E. A. Richards, E. B. Fomalont, Fanaroff B. L., Garrett M. A., K. I. Kellermann, L. L. Cowie, Moriondo G., Oort J. A., P. Capak, R. A. Windhorst, R. B. Partridge, Sutherland W., Windhorst R. A.   +14 more
core   +3 more sources