Table · dataset · 2026
Swift-BAT 150-month hard X-ray catalog ctps
Listed in IVOA Registry (Virtual Observatory)
We present a comprehensive catalog of 251 potential counterparts for 250 unassociated hard X-ray sources detected in the Swift- Burst Alert Telescope (BAT) 150-month hard X-ray survey.
Description
Over 150 months of observation, BAT has detected 2339 sources in the 15-150keV range. Among these, 344 do not have a low-energy counterpart.
Our study focuses on the analysis of soft X-ray observations (i.e., at energies <10keV) spatially overlapping with these Swift-BAT new hard X-ray sources. Such observations were taken with Chandra, Swift-XRT, eROSITA, and XMM-Newton. Within the sample of 251 potential counterparts, 94 (37%) are identified as AGN and 58 (23%) as galaxies.
Read the rest (2 more)
The rest of the 99 (40%) sources include pulsars, cataclysmic variables and unclassified soft X-ray (0.5-10keV) counterparts. Redshift data is available for 139 out of the 251 sources, and its distribution is in close agreement with the redshift distribution of previous BAT catalogs. We also present the results of a small optical spectroscopy campaign of 9 (out of 58) galaxies.
The majority of these turned out to be Seyfert 2 galaxies at a redshift slightly larger than the median of the BAT AGN sample.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/709/A12 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...709A..12I ui.adsabs.harvard.edu/abs/2026A%26A...709A..12I ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/709/a12 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- X-Ray
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/709/a12 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:x-ray | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |