Zobrazeno 1 - 10
of 174
pro vyhledávání: '"NRAO VLA Sky Survey"'
Many observations in recent times have shown evidence against the standard assumption of isotropy in the Big Bang model. Introducing a superhorizon scalar metric perturbation has been able to explain some of these anomalies. In this work, we probe th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56930ccbc2b980ad17a6967903f905a8
https://resolver.caltech.edu/CaltechAUTHORS:20210723-172412152
https://resolver.caltech.edu/CaltechAUTHORS:20210723-172412152
Autor:
Barbara Balmaverde, Marco Berton, Lucía Ballo, Alessandro Caccianiga, Tommaso Maccacaro, B. Sbarufatti, Anna Wolter, I Gioia, R. Della Ceca, Andrea Belfiore
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 492:3728-3741
The REX (Radio-Emitting X-ray sources) is a catalogue produced by cross-matching X-ray data from the ROSAT-PSPC archive of pointed observations and radio data from the NRAO VLA Sky Survey, aimed at the selection of blazars. From the REX catalogue, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0be1767164843226450d6dab6995d821
https://doi.org/10.1093/mnras/stz3532
https://doi.org/10.1093/mnras/stz3532
Autor:
Jun-Qing Xia, Ji-Ping Dai
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 491:L61-L65
In this letter we present constraints on the scale-dependent "local" type primordial non-Gaussianity, which is described by non-Gaussianity's spectral index $n_{\rm NG}$, from the NRAO VLA Sky Survey and the quasar catalog of the Sloan Digital Sky Su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65780956aa16ad61cc55ccc792cedb49
https://doi.org/10.1093/mnrasl/slz170
https://doi.org/10.1093/mnrasl/slz170
Autor:
Yik Ki Ma, Aritra Basu, S. A. Mao, S. K. Betti, Jeroen Stil, Jennifer West, Carl Heiles, Alex S. Hill
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 487:3432-3453
The NRAO VLA Sky Survey (NVSS) Rotation Measure (RM) catalogue is invaluable for the study of cosmic magnetism. However, the RM values reported in it can be affected by n$\pi$-ambiguity, resulting in deviations of the reported RM from the true values
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a48312df53f6e0f0c07262c81a226108
https://doi.org/10.1093/mnras/stz1325
https://doi.org/10.1093/mnras/stz1325
Identification of clusters of galaxies and physical properties of clusters and their member galaxies
Publikováno v:
Chinese Science Bulletin. 64:1583-1597
Clusters of galaxies are the largest gravitationally bound systems in the Universe and are located at the knots of cosmic web. They provide powerful constraints on galaxy evolution, the formation of large scale structure of the Universe and many astr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7dc9c893a77fd0b254c654f1688f09f
https://doi.org/10.1360/n972019-00095
https://doi.org/10.1360/n972019-00095
Interplanetary scintillation (IPS) provides an approach for identifying the presence of sub-arcsec structures in radio sources, and very long baseline interferometry (VLBI) technique can help verify whether the IPS sources have fine structures on mil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb838c42d165ce964b11256ddca00be6
Autor:
Marek Jamrozy, Agnieszka Kuźmicz
We present the largest sample of giant radio quasars (GRQs), which are defined as having a projected linear size greater than 0.7 Mpc. The sample consists of 272 GRQs, of which 174 are new objects discovered through cross-matching the NRAO VLA Sky Su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94534244310dbfa95d37031f5dd05585
http://arxiv.org/abs/2012.08857
http://arxiv.org/abs/2012.08857
Autor:
Cathy Horellou, Shane O'Sullivan, George Heald, Ettore Carretti, Pratik Dabhade, Marco Iacobelli, Annalisa Bonafede, C. Stuardi, V. Vacca, R. Morganti, Marcus Brüggen
Publikováno v:
Astronomy & astrophysics, 638:A48. EDP Sciences
Astronomy & Astrophysics, 638, A48
Astronomy & Astrophysics
Astronomy & Astrophysics, 638, A48
Astronomy & Astrophysics
Giant radio galaxies (GRGs) are physically large radio sources that extend well beyond their host galaxy environment. Their polarization properties are affected by the poorly constrained magnetic field that permeates the intergalactic medium on Mpc s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42b3acfd7117e9391eec13818c555352
https://research.rug.nl/en/publications/8fd60a26-382f-4b4a-9537-82b1ccbba6cd
https://research.rug.nl/en/publications/8fd60a26-382f-4b4a-9537-82b1ccbba6cd
Autor:
Benjamin McKinley, Torrance Hodgson, Melanie Johnston-Hollitt, Valentina Vacca, Tessa Vernstrom
We follow up on a report by Vacca et al. (2018) of 28 candidate large-scale diffuse synchrotron sources in an 8{\deg}$\times$8{\deg} area of the sky (centred at RA 5h0m0s Dec 5{\deg}48'0''). These sources were originally observed at 1.4 GHz using a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::936b664fcacd01436f939d2fa67504bb
Autor:
A. Caccianiga, Letizia P. Cassarà, Daniele Dallacasa, P. Severgnini, Marco Pedani, C. Cicone, Tullia Sbarrato, C. Spingola, Alberto Moretti, Gabriele Ghisellini, S. Belladitta, R. Della Ceca
We present the discovery of PSO J030947.49+271757.31, the radio brightest (23.7 mJy at 1.4 GHz) active galactic nucleus (AGN) at z>6.0. It was selected by cross-matching the NRAO VLA Sky Survey and the Panoramic Survey Telescope and Rapid Response Sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f2df325f33f6b1dde0f1725d41d191
http://hdl.handle.net/20.500.12386/31043
http://hdl.handle.net/20.500.12386/31043