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相关论文: Optical Cross-Match of SRG/eROSITA X-ray Sources U…

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We present a probabilistic model built for the optical cross-match between the SRG/eROSITA X-ray sources and photometric data from the DESI Legacy Imaging Surveys. The model relies both on positional and photometric information on optical…

高能天体物理现象 · 物理学 2022-04-21 M. I. Belvedersky , A. V. Meshcheryakov , M. R. Gilfanov , P. S. Medvedev

We have classified the point-like X-ray sources detected by the SRG/eROSITA telescope in the deep Lockman Hole survey. The goal was to separate the sources into Galactic and extragalactic objects. In this work have used the results of our…

高能天体物理现象 · 物理学 2023-10-02 M. I. Belvedersky , S. D. Bykov , M. R. Gilfanov

The ROSAT Deep Survey includes a complete sample of 50 X-ray sources with fluxes in the $0.5 - 2$ keV band larger than 5.5 $10^{-15}$ erg cm$^{-2}$ s$^{-1}$ in the Lockman field (Hasinger et al., Paper I). We have obtained deep broad-band…

We present broad band photometry and photometric redshifts for 187611 sources located in ~0.5deg^2 in the Lockman Hole area. The catalog includes 389 X-ray detected sources identified with the very deep XMM-Newton observations available for…

宇宙学与河外天体物理 · 物理学 2015-05-30 S. Fotopoulou , M. Salvato , G. Hasinger , E. Rovilos , M. Brusa , E. Egami , D. Lutz , V. Burwitz , J. H. Huang , D. Rigopoulou , M. Vaccari

The ROSAT Deep Survey in the Lockman Hole contains a complete sample of 50 X-ray sources with fluxes in the 0.5-2.0 keV band larger than 5.5E-15 erg/cm2/s. Previous work has provided optical identification of 46 of the 50 X-ray sources;…

The ROSAT Deep Survey in the Lockman Hole is the most sensitive X-ray survey performed to date, encompassing an exposure time of 207 ksec with the PSPC and a total of 1.32 Msec with the HRI aboard ROSAT. Here we present the complete…

The eROSITA X-ray telescope on board the Spectrum-Roentgen-Gamma (SRG) satellite has started to detect new X-ray sources over the full sky at an unprecedented rate. Understanding the performance and selection function of the source…

The ROSAT Deep Survey in the Lockman Hole is the most sensitive X-ray survey performed to date, encompassing an exposure time of 200 ksec with the PSPC and 1.2 Msec with the HRI. The source counts reach a density of ~1000/deg2 at a limiting…

天体物理学 · 物理学 2007-05-23 G. Hasinger , I. Lehmann , R. Giacconi , M. Schmidt , J. Truemper , G. Zamorani

We present a new analysis of the ISOCAM 14.3 micron deep survey in a 20x20 square arcmins area in the Lockman Hole. This survey is intermediate between the ultra-deep surveys and the shallow surveys in the ELAIS fields. The data have been…

天体物理学 · 物理学 2009-11-10 G. Rodighiero , C. Lari , D. Fadda , A. Franceschini , D. Elbaz , C. Cesarsky

We report results of a new analysis of a deep 95 mu imaging survey with the photo-polarimeter ISOPHOT on board the Infrared Space Observatory, over a half square degree area within the Lockman Hole. To this end we exploit a newly developed…

天体物理学 · 物理学 2009-11-07 G. Rodighiero , C. Lari , A. Franceschini , A. Gregnanin , D. Fadda

We report on the first deep X-ray survey with the XMM-Newton observatory during the performance verification phase. The field of the Lockman Hole, one of the best studied sky areas over a very wide range of wavelengths, has been observed. A…

The soft X-ray instrument eROSITA on board the Spectrum-Roentgen-Gamma (SRG) observatory has successfully completed four of the eight planned all-sky surveys, detecting almost one million X-ray sources during the first survey (eRASS1). The…

We discuss an algorithm whereby the massive galaxy clusters detected in the SRG/eROSITA all-sky survey are identified and their photometric redshifts are estimated. For this purpose, we use photometric redshift estimates for galaxies and…

This is the first of two papers describing the observations and cataloguing of deep 3-GHz observations of the Lockman Hole North using the Karl G. Jansky Very Large Array. The aim of this paper is to investigate, through the use of…

星系天体物理 · 物理学 2016-07-27 Tessa Vernstrom , Douglas Scott , Jasper Wall , Jim Condon , Bill Cotton , Rick Perley

In November 2019, eROSITA on board of SRG observatory started to map the entire sky in X-rays. After the 4-year survey program, it will reach flux limits about 25 times deeper than ROSAT. During the SRG Performance Verification phase,…

The eROSITA instrument aboard the Spectrum Roentgen Gamma (SRG) satellite has performed its first all-sky survey between December 2019 and June 2020. This paper presents the resulting hard X-ray (2.3-5 keV) sample, the first created from an…

We describe a multi-component matched filter cluster confirmation tool (MCMF) designed for the study of large X-ray source catalogs produced by the upcoming X-ray all-sky survey mission eROSITA. We apply the method to confirm a sample of 88…

We present photometric and spectroscopic observations of the X-ray sources detected in the wide-area, moderately deep Chandra Large Area Synoptic X-ray Survey of the Lockman Hole-Northwest field. We have B, V, R, I, and z' photometry for…

天体物理学 · 物理学 2009-11-10 A. T. Steffen , A. J. Barger , P. Capak , L. L. Cowie , R. F. Mushotzky , Y. Yang

We present the X-ray data and the optical identifications for a deep ROSAT PSPC observation in the "Marano field". In the inner region of the ROSAT field (15' radius) we detected 50 X-ray sources with Sx >= 3.7x10^(-15) erg/cm^2/s. When…

天体物理学 · 物理学 2007-05-23 G. Zamorani , M. Mignoli , G. Hasinger , R. Burg , R. Giacconi , M. Schmidt , J. Trumper , P. Ciliegi , C. Gruppioni , B. Marano

We report results from a new analysis of a deep 95 micron imaging survey with ISOPHOT on board the Infrared Space Observatory, over a ~1 square degree area within the Lockman Hole, which extends the statistics of our previous study…

天体物理学 · 物理学 2009-11-10 G. Rodighiero , A. Franceschini
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