The eROSITA extragalactic CalPV serendipitous catalog
arXiv:2202.09430 · doi:10.1051/0004-6361/202243362
Abstract
The eROSITA X-ray telescope on board the Spectrum-Roentgen-Gamma (SRG) observatory performed calibration and performance verification (CalPV) observations between September 2019 and December 2019, ahead of the planned four-year all-sky surveys. Most of them were deep, pointing-mode observations. We present here the X-ray catalog detected from the set of extra-galactic CalPV observations released to the public by the German eROSITA consortium, and the multiband counterparts of these X-ray sources. We developed a source detection method optimized for point-like X-ray sources by including extended X-ray emission in the background measurement. The multiband counterparts were identified using a Bayesian method from the CatWISE catalog. Combining 11 CalPV fields, we present a catalog containing 9515 X-ray sources, whose X-ray fluxes were measured through spectral fitting. CatWISE counterparts are presented for 77% of the sources. Significant variabilities are found in 99 of the sources, which are also presented with this paper. Most of these fields show similar number counts of point sources as typical extragalactic fields, and a few harbor particular stellar populations.
arXiv commentto be published in A&A, 23 pages, 14 figures
References in corpus (34)
- Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
- HI4PI: A full-sky HI survey based on EBHIS and GASS
- The eROSITA X-ray telescope on SRG
- Calibration of X-ray absorption in our Galaxy
- Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
- Second ROSAT all-sky survey (2RXS) source catalogue
- The SRG X-ray orbital observatory, its telescopes and first scientific results
- The XMM-Newton serendipitous survey IX. The fourth XMM-Newton serendipitous source catalogue
- The eROSITA Final Equatorial Depth Survey (eFEDS): The X-ray catalog
- The CatWISE2020 Catalog
- The XMM-Newton wide-field survey in the COSMOS field. The point-like X-ray source catalogue
- Detection of large-scale X-ray bubbles in the Milky Way halo
- Contour binning: a new technique for spatially-resolved X-ray spectroscopy applied to Cassiopeia A
- A Deep Chandra Survey of the Globular Cluster 47 Tucanae: Catalog of Point Sources
- Finding counterparts for All-sky X-ray surveys with Nway: a Bayesian algorithm for cross-matching multiple catalogues
- A new method for determining the sensitivity of X-ray imaging observations and the X-ray number counts
- High-Mass X-ray binaries in the Small Magellanic Cloud
- The eROSITA Final Equatorial-Depth Survey (eFEDS): Identification and characterization of the counterparts to the point-like sources
- SIXTE -- The Generic X-ray Instrument Simulation Toolkit
- The Spitzer Survey of Interstellar Clouds in the Gould Belt. III. A Multi-Wavelength View of Corona Australis
- The eROSITA Final Equatorial-Depth Survey (eFEDS): The AGN Catalogue and its X-ray Spectral Properties
- The XMM-Newton survey of the Small Magellanic Cloud: The X-ray point-source catalogue
- The Abell 3391/95 galaxy cluster system: A 15 Mpc intergalactic medium emission filament, a warm gas bridge, infalling matter clumps, and (re-) accelerated plasma discovered by combining SRG/eROSITA data with ASKAP/EMU and DECam data
- Active Galactic Nuclei and their Large-scale Structure: an eROSITA mock catalogue
- Full-sky photon simulation of clusters and active galactic nuclei in the soft X-rays for eROSITA
- Studying the merging cluster Abell 3266 with eROSITA
- Extreme ultra-soft X-ray variability in an eROSITA observation of the Narrow-Line Seyfert 1 Galaxy 1H 0707-495
- Establishing the X-ray Source Detection Strategy for eROSITA with Simulations
- The eROSITA view of the Abell 3391/95 field: The Northern Clump. The largest infalling structure in the longest known gas filament observed with eROSITA, XMM-Newton, and Chandra
- The Sloan Digital Sky Survey Reverberation Mapping Project: the XMM-Newton X-ray source catalog and multi-band counterparts
- eROSITA calibration and performance verification phase: High-mass X-ray binaries in the Magellanic Clouds
- Systematic evaluation of variability detection methods for eROSITA
- X-Ray Studies of the Abell 3158 Galaxy Cluster with eROSITA
- EROSITA Spectro-Imaging Analysis of the Abell 3408 Galaxy Cluster