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We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg$^2$ Bo\"otes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the Universe at high…

This paper is the second in a pair of articles presenting data release 1 (DR1) of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), the largest single open-time key project carried out with the Herschel Space Observatory.…

Access to microarcsecond astrometry is now routine in the radio, infrared, and optical domains. In particular the publication of the second data release from the Gaia mission made it possible for every astronomer to work with easily…

Instrumentation and Methods for Astrophysics · Physics 2021-09-17 Anthony G. A. Brown

We describe photometric recalibration of data obtained by the asteroid survey LINEAR. Although LINEAR was designed for astrometric discovery of moving objects, the dataset described here contains over 5 billion photometric measurements for…

Astrophysics of Galaxies · Physics 2015-05-30 Branimir Sesar , J. Scott Stuart , Željko Ivezić , Dylan P. Morgan , Andrew C. Becker , Przemysław Woźniak

At the core of the Gaia mission is a multi-epoch survey consisting of astrometric, photometric, spectrophotometric, and spectroscopic measurements. The astrometric time series provides parallaxes and proper motions, along with information…

Instrumentation and Methods for Astrophysics · Physics 2024-12-05 Laurent Eyer

In the second paper of this series we perfected our method of linking high precision Hubble Space Telescope astrometry to the high-accuracy Gaia DR2 absolute reference system to overcome the limitations of relative astrometry with…

Solar and Stellar Astrophysics · Physics 2020-03-11 L. R. Bedin , C. Fontanive

We investigate a sample of 3412 {\it International Celestial Reference Frame} (ICRF3) extragalactic radio-loud sources with accurate positions determined by VLBI in the S/X band, mostly active galactic nuclei (AGN) and quasars, which are…

Astrophysics of Galaxies · Physics 2019-03-20 Valeri V. Makarov , Ciprian T. Berghea , Julien Frouard , Alan Fey , Henrique R. Schmitt

This paper presents the I-band data obtained by the ESO Imaging Survey (EIS) over two patches of the sky, 6 square degrees each, centered at $\alpha \sim 5^h40^m$, $\delta \sim -24^\circ50^m$, and $\alpha \sim 9^h50^m$, $\delta \sim…

We present a catalogue of white dwarf candidates selected from the second data release of $Gaia$ (DR2). We used a sample of spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey (SDSS) to map the entire space spanned by…

The exponential growth in Unmanned Aerial Vehicles (UAVs) usage underscores the critical need of detecting them at extended distances to ensure safe operations, especially in densely populated areas. Despite the tremendous advances made in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Amirreza Rouhi , Sneh Patel , Noah McCarthy , Siddiqa Khan , Hadi Khorsand , Kaleb Lefkowitz , David K. Han

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…

High Energy Astrophysical Phenomena · Physics 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

The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 sq. deg. region along the celestial equator during its first two seasons of a three-season campaign. Multi-band (ugriz) light…

We describe DPOSS, a new digital survey of the northern sky, based on the POSS-II photographic sky atlas. The survey covers the entire sky north of delta = -3 deg in 3 bands, calibrated to the Gunn $gri$ system, reaching to equivalent…

We present the second data release of the MUSE Hubble UDF surveys, which includes the deepest spectroscopic survey ever performed. The MUSE data, with their 3D content, amazing depth, wide spectral range, and excellent spatial and medium…

The Stellar Abundances and Galactic Evolution Survey (SAGES) is a multi-band survey that covers the northern sky area of ~12000 deg2. Nanshan One-meter Wide-field Telescope (NOWT) of Xinjiang Astronomical Observatory (XAO) carried out…

A new version of the Optical Characteristics of Astrometric Radio Sources (OCARS) catalog is presented. This compiled catalog includes radio sources observed in different VLBI programs and experiments that result in source position…

Instrumentation and Methods for Astrophysics · Physics 2018-11-29 Zinovy Malkin

This optical catalogue combines the all-sky USNO-B1.0/A1.0 and most-sky APM catalogues, plus overlays of SDSS optical data, into a single all-sky map presented in a sparse binary format which is easily downloaded at 9Gb zipped. Total count…

Astrophysics of Galaxies · Physics 2017-06-28 Eric Wim Flesch

We combine Gaia DR1, PS1, SDSS and 2MASS astrometry to measure proper motions for 350 million sources across three-fourths of the sky down to a magnitude of $m_r\sim20$\,. Using positions of galaxies from PS1, we build a common reference…

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