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Related papers: The LOFAR Two-metre Sky Survey Deep Fields Data Re…

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We extend the Unified Radio Catalog, a catalog of sources detected by various (NVSS, FIRST, WENSS, GB6) radio surveys, and SDSS, to IR wavelengths by matching it to the IRAS Point and Faint Source catalogs. By fitting each NVSS-selected…

Astrophysics of Galaxies · Physics 2015-05-20 Igor Moric , Vernesa Smolcic , Amy Kimball , Dominik A. Riechers , Zeljko Ivezic , Nick Scoville

Low-frequency radio observations are revealing an increasing number of diffuse synchrotron sources from galaxy clusters, dominantly in the form of radio halos or radio relics. The existence of this diffuse synchrotron emission indicates the…

We investigate the relationship between faint X-ray and 1.4 GHz radio source populations detected within 3' of the Hubble Deep Field North using the 1 Ms Chandra and 40 uJy VLA surveys. Within this region, we find that ~42% of the 62 X-ray…

The results of a deep 20 cm radio survey at 20 cm are reported of the AKARI Deep Field South (ADF-S) near the South Ecliptic Pole (SEP), using the Australia Telescope Compact Array telescope, ATCA. The survey has 1 sigma detection limits…

The physical parameters of galaxies and/or AGNs can be derived by fitting their multi-band spectral energy distributions (SEDs). By using CIGALE code, we perform multi-band SED fitting (from ultraviolet to infrared) for 791 X-ray sources…

Astrophysics of Galaxies · Physics 2020-12-08 Xiaotong Guo , Qiusheng Gu , Nan Ding , E. Contini , Yongyun Chen

Gaseous halos play a key role for understanding inflow, feedback and the overall baryon budget in galaxies. Literature models predict transitions of the state of the gaseous halo between cold and hot accretion, winds, fountains and…

Astrophysics of Galaxies · Physics 2019-07-10 Martin G. H. Krause , Martin J. Hardcastle , Stanislav S. Shabala

We use the James Clerk Maxwell Telescope's SCUBA-2 camera to image a 400 arcmin^2 area surrounding the GOODS-N field. The 850 micron rms noise ranges from a value of 0.49 mJy in the central region to 3.5 mJy at the outside edge. From these…

Astrophysics of Galaxies · Physics 2014-12-04 A. J. Barger , L. L. Cowie , C. -C. Chen , F. N. Owen , W. -H. Wang , C. M. Casey , N. Lee , D. B. Sanders , J. P. Williams

(abridged) We use the 1.4 GHz VIMOS-VLA Deep Survey and the optical VVDS and the CFHT-LS to compare the properties of radio loud galaxies with respect to the whole population of optical galaxies. The availability of multiband photometry and…

We explore the nature of the radio emission of X-ray selected AGN by combining deep radio (1.4GHz; 60micro-Jy) and X-ray data with multiwavelength (optical, mid-infrared) observations in the Extended Chandra Deep Field South (E-CDFS). The…

Radio galaxies can extend far beyond the stellar component of their originating host galaxies, and their radio emission can consist of multiple discrete components. Furthermore, the apparent source structure will depend on survey…

We present a detailed depolarization analysis of the radio galaxy \texttt{ILTJ012215.21+254334.8} using polarimetric data from the \textit{LOFAR Two-metre Sky Survey} (LoTSS) Data Release 2 (DR2) catalogue. This source, with \textit{RM}…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-12 Samantha Sneha Paul , Abhik Ghosh

We investigate the astrophysics of radio-emitting star-forming galaxies and ac- tive galactic nuclei (AGNs), and elucidate their statistical properties in the radio band including luminosity functions, redshift distributions, and number…

Astrophysics of Galaxies · Physics 2017-06-28 Claudia. Mancuso , A. Lapi , I. Prandoni , I. Obi , J. Gonzalez-Nuevo , F. Perrotta , A. Bressan , A. Celotti , L. Danese

Deep combination radio observations at 1.4GHz with the VLA and MERLIN have imaged a region 10 arcminutes square surrounding the Hubble Deep Field North (HDF-N). Initial studies of the weak radio source population have shown that the…

Astrophysics · Physics 2007-05-23 T. W. B. Muxlow , R. J. Beswick , H. Thrall , A. M. S Richards , S. T. Garrington , A. Pedlar

It is now established that the faint radio population is a mixture of star-forming galaxies and faint active galactic nuclei (AGNs), with the former dominating below S(1.4GHz) \sim 100 muJy and the latter at larger flux densities. The faint…

Astrophysics of Galaxies · Physics 2018-12-26 R. Ricci , I. Prandoni , H. R. De Ruiter , P. Parma

The third data release of the LOFAR Two-metre Sky Survey provides an unprecedented view of the northern sky at 144 MHz. While compact sources can be efficiently identified with automated software packages, the detection of diffuse radio…

Aims. The orientation-based unification scheme of radio-loud active galactic nuclei (AGNs) asserts that radio galaxies and quasars are essentially the same type of object, but viewed from different angles. To test this unification model, we…

Astrophysics of Galaxies · Physics 2025-03-04 Tong Pan , Yuming Fu , H. J. A. Rottgering , R. J. van Weeren , A. B. Drake , B. H. Yue , J. W. Petley

Line and continuum studies at centimeter through submillimeter wavelengths address probe deep into the earliest, most active and dust obscured phases of galaxy formation, and reveal the molecular and cool atomic gas. We summarize the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 C. L. Carilli , F. Walter , D. Riechers , R. Wang , E. Daddi , J. Wagg , F. Bertoldi , K. Menten

We present 3, 15, and 33 GHz imaging towards galaxy nuclei and extranuclear star-forming regions using the Karl G. Jansky Very Large Array as part of the Star Formation in Radio Survey. With $3-33$ GHz radio spectra, we measured the…

Astrophysics of Galaxies · Physics 2020-06-03 S. T. Linden , E. J. Murphy , D. Dong , E. Momjian , R. C. Kennicutt , D. S. Meier , E. Schinnerer , J. L. Turner

Various studies have laid claim to finding an alignment of the polarization vectors or radio jets of active galactic nuclei (AGN) over large distances, but these results have proven controversial and so far, there is no clear explanation…

The radio spectral index is a powerful probe for classifying cosmic radio sources and understanding the origin of the radio emission. Combining data at 147 MHz and 1.4 GHz from the TIFR GMRT Sky Survey (TGSS) and the NRAO VLA Sky Survey…

Instrumentation and Methods for Astrophysics · Physics 2018-01-10 F. de Gasperin , H. T. Intema , D. A. Frail
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