The Open Universe survey of Swift-XRT GRB fields: a complete sample of HBL blazars

Abstract

We have analysed all the X-ray images centred on Gamma Ray Bursts generated by Swift over the last 15 years using automatic tools that do not require any expertise in X-ray astronomy, producing results in excellent agreement with previous findings. This work, besides presenting the largest medium-deep survey of the X-ray sky and a complete sample of blazars, wishes to be a step in the direction of achieving the ultimate goal of the Open Universe Initiative, that is to enable non expert people to fully benefit of space science data, possibly extending the potential for scientific discovery, currently confined within a small number of highly specialised teams, to a much larger population. We have used the Swift_deepsky Docker container encapsulated pipeline to build the largest existing flux-limited and unbiased sample of serendipitous X-ray sources. Swift_deepsky runs on any laptop or desktop computer with a modern operating system. The tool automatically downloads the data and the calibration files from the archives, runs the official Swift analysis software and produces a number of results including images, the list of detected sources, X-ray fluxes, SED data, and spectral slope estimations. We used our source list to build the LogN-LogS of extra-galactic sources, which perfectly matches that estimated by other satellites. Combining our survey with multi-frequency data we selected a complete radio flux-density limited sample of High Energy Peaked (HBL) blazars.

arXiv commentAccepted for publication in A&A. 8 pages, 7 figures

References in corpus (28)

• Unified Schemes for Radio-Loud Active Galactic Nuclei
• The Swift X-ray Telescope
• The Swift Ultra-Violet/Optical Telescope
• The Burst Alert Telescope (BAT) on the Swift MIDEX Mission
• Fermi Large Area Telescope Fourth Source Catalog
• Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
• The Spectral Energy Distribution of Fermi bright blazars
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. II. The Source Catalogue
• Active Galactic Nuclei: what's in a name?
• The Connection between X-ray- and Radio-Selected BL Lacertae Objects
• Deep Extragalactic X-ray Surveys
• The XMM-Newton serendipitous survey IX. The fourth XMM-Newton serendipitous source catalogue
• The 5th edition of the Roma-BZCAT. A short presentation
• The Cosmic Evolution of Fermi BL Lacertae Objects
• 2SXPS: An improved and expanded Swift X-ray telescope point source catalog
• Dissecting the region around IceCube-170922A: the blazar TXS 0506+056 as the first cosmic neutrino source
• The Half Million Quasars (HMQ) Catalogue
• 1SXPS: A deep Swift X-ray Telescope point source catalog with light curves and spectra
• The Properties of the X-Ray-Selected EMSS Sample of BL Lac Objects
• The 3HSP catalogue of Extreme & High Synchrotron Peaked Blazars
• Dissecting the regions around IceCube high-energy neutrinos: growing evidence for the blazar connection
• The Sedentary Multi-Frequency Survey. I. Statistical Identification and Cosmological Properties of HBL BL Lacs
• The seven year Swift-XRT point source catalog (1SWXRT)
• The Open Universe VOU-Blazars tool
• Open Universe for Blazars: a new generation of astronomical products based on 14 years of Swift-XRT data
• An X-ray selected sample of radio-loud quasars
• The Swift X-ray Telescope Cluster Survey III: Cluster Catalog from 2005-2012 Archival Data
• The SWIFT AGN and Cluster Survey I: Number Counts of AGN and Galaxy Clusters

Cited by in corpus (2)

• X-ray spectra, light-curves and SEDs of blazars frequently observed by Swift
• Deep Learning Blazar Classification based on Multi-frequency Spectral Energy Distribution Data