Table · dataset · 2026
Geminga's pulsar halo search with SRG/ART-XC
Listed in IVOA Registry (Virtual Observatory)
The searches for the putative large-scale X-ray halo around the Geminga pulsar have been extensively performed using various narrow field of view X-ray telescopes.
Description
In this paper we present wide-field scanning observation of Geminga with SRG/ART-XC. Our X-ray analysis covers a large area of the sky (3.5 by 3.5 degrees) of direct imaging in the 4-12keV energy band, comparable with the size of expected Geminga emission, for the first time.
The ART-XC observation provides a highly uniform sky coverage without strong vignetting effects. The synchrotron X-ray halo flux is predicted from a physical model based on particle injection, diffusion and cooling over the pulsar's lifetime, and consistently including the spectral and spatial properties of the synchrotron X-ray and inverse Compton gamma-ray emissions. The model is tuned to reproduce existing multi-wavelength data coming from X-ray upper limits and GeV to TeV gamma ray observations.
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After taking into account the high particle background and its uncertainties, no emission is significantly found in the assumed source region, and X-ray flux upper limits are derived, which are less constraining within a factor of three with respect to existing ones obtained with narrow field of view telescopes and longer exposure times. Nonetheless, we put direct and independent constraints on the Geminga's ambient magnetic field strength compatible with other studies.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/705/A107 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...705A.107K ui.adsabs.harvard.edu/abs/2026A%26A...705A.107K ↗
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/705/a107 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/705/a107 | 15 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:radio | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:x-ray | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |