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相关论文: Millimeter-band Surveys of Extragalactic Sources

200 篇论文

We present a short overview on the extragalactic background radiation from radio to X-rays, with an eye to the relation to galaxy formation and emphasizing on astrophysical backgrounds (as opposed to cosmological). As the radio background,…

天体物理学 · 物理学 2007-05-23 G. De Zotti , A. Franceschini , L. Toffolatti , P. Mazzei , L. Danese

We review published deep surveys in the submillimeter (sub-mm) regime from the new Sub-millimetre Common User Bolometer Array (SCUBA) on the 15-m James Clerk Maxwell Telescope (JCMT), Mauna Kea, Hawaii. Summarising the number counts of…

天体物理学 · 物理学 2009-10-31 Ian Smail , Rob Ivison , Andrew Blain , Jean-Paul Kneib

Cumulative optical and infrared emission from galaxies accumulated over cosmological time scales, the extragalactic background light (EBL), could be probed by complementary techniques of direct observations and source counting in the…

高能天体物理现象 · 物理学 2020-01-15 A. Korochkin , A. Neronov , D. Semikoz

We present the results of the first major systematic submillimetre survey of radio galaxies spanning the redshift range 1 < z < 5. The primary aim of this work is to elucidate the star-formation history of this sub-class of elliptical…

天体物理学 · 物理学 2009-10-31 E. N. Archibald , J. S. Dunlop , D. H. Hughes , S. Rawlings , S. A. Eales , R. J. Ivison

We present an analysis of the spectral properties of the extragalactic radio sources in the nearly-complete VSA sample at 33GHz. Data from different surveys are used to study source spectra between 1.4 and 33GHz. We find that, in general,…

We make a new estimate of the extragalactic radio background down to kHz frequencies based on the observed luminosity functions and radio spectra of normal galaxies and radio galaxies. We have constructed models for the spectra of these two…

天体物理学 · 物理学 2010-11-30 R. J. Protheroe , P. L. Biermann

We interpret the large variety of redshift distributions of galaxies found by far-infrared and (sub-)millimeter deep surveys depending on their depth and wavelength using the B\'ethermin et al. (2012) phenomenological model of galaxy…

星系天体物理 · 物理学 2015-04-15 Matthieu Béthermin , Carlos De Breuck , Mark Sargent , Emanuele Daddi

The Extragalactic Background Light (EBL) from the infrared (IR) through the ultraviolet (UV) is dominated by emission from stars, either directly or through absorption and reradiation by dust. It can thus give information on the star…

宇宙学与河外天体物理 · 物理学 2019-08-14 Justin D. Finke

A sample of 129 unresolved radio sources with ultrahigh linear polarization (>30 per cent) has been selected from the NRAO VLA Sky Survey. Such high average linear polarization is unusual in extragalactic sources. Higher resolution…

星系天体物理 · 物理学 2010-09-21 H. Shi , H. Liang , J. L. Han , R. W. Hunstead

One of the most debated issues about sub-mJy radio sources, which are responsible for the steepening of the 1.4 GHz source counts, is the origin of their radio emission. Particularly interesting is the possibility of combining radio…

天体物理学 · 物理学 2009-11-13 A. Mignano , I. Prandoni , L. Gregorini , P. Parma , H. R. de Ruiter , M. H. Wieringa , G. Vettolani , R. D. Ekers

Our view of galaxy evolution has been dramatically enhanced by the recent deep field submm surveys carried out with the SCUBA camera on the JCMT. SCUBA has discovered a population of luminous infrared galaxies at redshifts ~1-4 that emit…

天体物理学 · 物理学 2009-10-31 D. B. Sanders

We discuss the properties of the sources in the CLASS Blazar survey which aims at the selection of low radio power (P(5GHz)<10^25 W Hz^-1) blazars. We use VLA data from available catalogues and from our own observations to constrain the…

天体物理学 · 物理学 2009-11-10 A. Caccianiga , M. J. M. Marcha

We present evidence for a positive angular correlation between bright submillimetre sources and low-redshift galaxies. The study was conducted using 39 sources selected from 3 contiguous, flux-limited SCUBA surveys, cross-correlated with…

天体物理学 · 物理学 2009-11-10 O. Almaini , J. S. Dunlop , C. J. Willott , D. M. Alexander , F. E. Bauer , C. T. Liu

We present serendipitous detections of radio sources at 28.5 GHz (1 cm), which resulted from our program to image thermal Sunyaev-Zeldovich (SZ) effect in 56 galaxy clusters. We find 64 radio sources with fluxes down to 0.4 mJy, and within…

天体物理学 · 物理学 2009-10-30 Asantha R. Cooray , Laura Grego , William L. Holzapfel , Marshall Joy , John E. Carlstrom

Context. The majority of bright extragalactic gamma-ray sources are blazars. Only a few radio galaxies have been detected by Fermi/LAT. Recently, the GHz-peaked spectrum source PKS 1718-649 was confirmed to be gamma-ray bright, providing…

高能天体物理现象 · 物理学 2016-09-28 C. Müller , P. R. Burd , R. Schulz , R. Coppejans , H. Falcke , H. Intema , M. Kadler , F. Krauß , R. Ojha

Clusters of galaxies are effective gravitational lenses able to magnify background galaxies and making it possible to probe the fainter part of the galaxy population. Submillimeter galaxies, which are believed to be star-forming galaxies at…

High-redshift quasars are important to study galaxy and active galactic nuclei (AGN) evolution, test cosmological models, and study supermassive black hole growth. Optical searches for high-redshift sources have been very successful, but…

This Chapter provides a review of $\gamma$-ray sources lying at high Galactic latitudes. Their statistical properties and variability status, as well as studies involving cross correlations with lower frequency catalogs and multiwavelength…

天体物理学 · 物理学 2007-05-23 Diego F. Torres

Infrared-Faint Radio Sources represent a new and unexpected class of object which is bright at radio wavelengths but unusually faint at infrared wavelengths. If, like most mJy radio sources, they were either conventional active or…

天体物理学 · 物理学 2009-06-23 Ray P. Norris , Steven Tingay , Chris Phillips , Enno Middelberg , Adam Deller , Philip N. Appleton

In this article I briefly describe how deep radio surveys may provide a means to identify variations in the upper end of the initial mass function (IMF) in star-forming galaxies at high redshifts (i.e., $z\gtrsim$3). At such high redshifts,…

宇宙学与河外天体物理 · 物理学 2010-09-10 Eric J. Murphy