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We present the 1SXPS (Swift-XRT Point Source) catalog of 151,524 X-ray point-sources detected by the Swift-XRT in 8 years of operation. The catalog covers 1905 square degrees distributed approximately uniformly on the sky. We analyze the…

In the current era of radio astronomy, continuum surveys observe a multitude of objects with complex morphologies and sizes, and are not limited to observing point sources. Typical radio source extraction software generates catalogues by…

星系天体物理 · 物理学 2019-06-14 C. L. Hale , A. S. G. Robotham , L. J. M. Davies , M. J. Jarvis , S. P. Driver , I. Heywood

We have conducted a widefield, wideband, snapshot survey using the Australian SKA Pathfinder (ASKAP) referred to as the Rapid ASKAP Continuum Survey (RACS). RACS covers $\approx$ 90% of the sky, with multiple observing epochs in three…

Context. We present a celestial reference frame (CRF) based on the combination of independent, multifrequency radio source position catalogs using nearly 40 years of Very Long Baseline Interferometry observations at the standard geodetic…

天体物理仪器与方法 · 物理学 2019-10-02 Maria Karbon , Axel Nothnagel

We present an all-sky catalog of absolute positions and estimates of correlated flux density of 21,942 compact radio sources determined from processing interferometric visibility data of virtually all very long baseline interferometry…

天体物理仪器与方法 · 物理学 2025-01-20 Leonid Petrov , Yuri Y. Kovalev

We present a search for transient and highly variable sources at low radio frequencies (150-200 MHz) that explores long timescales of 1-3 years. We conducted this search by comparing the TIFR GMRT Sky Survey Alternative Data Release 1 (TGSS…

Archival data have been combined with recent observations of the Galactic plane using the Very Large Array to create new catalogs of compact centimetric radio sources. The 20 cm source catalog covers a longitude range of -20 deg < l < 120…

天体物理学 · 物理学 2008-11-26 Richard L. White , Robert H. Becker , David J. Helfand

The CORNISH project is the highest resolution radio continuum survey of the Galactic plane to date. It is the 5 GHz radio continuum part of a series of multi-wavelength surveys that focus on the northern GLIMPSE region (10 deg < l < 65…

The accuracy in position and flux density of 19 large radio continuum source catalogues has been determined using SPECFIND, a new tool recently made available through the CDS. The ~67000 radio continuum spectra with three or more…

天体物理学 · 物理学 2009-11-10 B. Vollmer , E. Davoust , P. Dubois , F. Genova , F. Ochsenbein , W. van Driel

The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite began surveying the sky in December 2019, with the aim of producing all-sky X-ray source lists and sky maps of an unprecedented depth. Here we present catalogues…

高能天体物理现象 · 物理学 2024-01-31 A. Merloni , G. Lamer , T. Liu , M. E. Ramos-Ceja , H. Brunner , E. Bulbul , K. Dennerl , V. Doroshenko , M. J. Freyberg , S. Friedrich , E. Gatuzz , A. Georgakakis , F. Haberl , Z. Igo , I. Kreykenbohm , A. Liu , C. Maitra , A. Malyali , M. G. F. Mayer , K. Nandra , P. Predehl , J. Robrade , M. Salvato , J. S. Sanders , I. Stewart , D. Tubín-Arenas , P. Weber , J. Wilms , R. Arcodia , E. Artis , J. Aschersleben , A. Avakyan , C. Aydar , Y. E. Bahar , F. Balzer , W. Becker , K. Berger , T. Boller , W. Bornemann , M. Brüggen , M. Brusa , J. Buchner , V. Burwitz , F. Camilloni , N. Clerc , J. Comparat , D. Coutinho , S. Czesla , S. M. Dannhauer , L. Dauner , T. Dauser , J. Dietl , K. Dolag , T. Dwelly , K. Egg , E. Ehl , S. Freund , P. Friedrich , R. Gaida , C. Garrel , V. Ghirardini , A. Gokus , G. Grünwald , S. Grandis , I. Grotova , D. Gruen , A. Gueguen , S. Hämmerich , N. Hamaus , G. Hasinger , K. Haubner , D. Homan , J. Ider Chitham , W. M. Joseph , A. Joyce , O. König , D. M. Kaltenbrunner , A. Khokhriakova , W. Kink , C. Kirsch , M. Kluge , J. Knies , S. Krippendorf , M. Krumpe , J. Kurpas , P. Li , Z. Liu , N. Locatelli , M. Lorenz , S. Müller , E. Magaudda , C. Mannes , H. McCall , N. Meidinger , M. Michailidis , K. Migkas , D. Muñoz-Giraldo , B. Musiimenta , N. T. Nguyen-Dang , Q. Ni , A. Olechowska , N. Ota , F. Pacaud , T. Pasini , E. Perinati , A. M. Pires , C. Pommranz , G. Ponti , K. Poppenhaeger , G. Pühlhofer , A. Rau , M. Reh , T. H. Reiprich , W. Roster , S. Saeedi , A. Santangelo , M. Sasaki , J. Schmitt , P. C. Schneider , T. Schrabback , N. Schuster , A. Schwope , R. Seppi , M. M. Serim , S. Shreeram , E. Sokolova-Lapa , H. Starck , B. Stelzer , J. Stierhof , V. Suleimanov , C. Tenzer , I. Traulsen , J. Trümper , K. Tsuge , T. Urrutia , A. Veronica , S. G. H. Waddell , R. Willer , J. Wolf , M. C. H. Yeung , A. Zainab , F. Zangrandi , X. Zhang , Y. Zhang , X. Zheng

We present a new broadband radio frequency catalogue across 0.12 GHz $\le \nu \le$ 20 GHz created by combining data from the Murchison Widefield Array Commissioning Survey, the Australia Telescope 20 Gigahertz survey, and the literature.…

星系天体物理 · 物理学 2018-02-27 V. M. Harvey , T. Franzen , J. Morgan , N. Seymour

The Rapid ASKAP Continuum Survey (RACS) is the first large sky survey using the Australian Square Kilometre Array Pathfinder (ASKAP), covering the sky south of +41$^\circ$ declination. With ASKAP's large, instantaneous field of view, $\sim…

This paper presents 1.4-GHz radio continuum observations of 15 very extended radio galaxies. These sources are so large that most interferometers lose partly their structure and total flux density. Therefore, single-dish detections are…

星系天体物理 · 物理学 2016-04-19 M. Wezgowiec , M. Jamrozy , K. -H. Mack

We present the first sub-mJy ($\approx0.7$ mJy beam$^{-1}$) survey to be completed below 100 MHz, which is over an order of magnitude deeper than previously achieved for widefield imaging of any field at these low frequencies. The high…

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…

天体物理仪器与方法 · 物理学 2018-01-10 F. de Gasperin , H. T. Intema , D. A. Frail

As part of the GLOSTAR (GLObal view of STAR formation in the Milky Way) survey, we present the high-resolution continuum source catalog for the regions (l = 2-28, 36-40, 56-60, &|b|<1.0), observed with the Karl G. Jansky Very Large Array…

Radio continuum surveys of the Galactic plane can find and characterize HII regions, supernova remnants (SNRs), planetary nebulae (PNe), and extragalactic sources. A number of surveys at high angular resolution (<25") at different…

We carried out a large program with the Karl G. Jansky Very Large Array (VLA): "THOR: The HI, OH, Recombination line survey of the Milky Way". We observed a significant portion of the Galactic plane in the first quadrant of the Milky Way in…

The Combined NVSS-FIRST Galaxy (CoNFIG) survey was defined by selecting all sources with S_1.4GHz > 1.3Jy from the NRAO VLA Sky Survey (NVSS) in the north field of the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey. We carried…

天体物理学 · 物理学 2009-04-14 Melanie A. Gendre , Jasper V. Wall