Table · dataset · 2022
Sub-galactic X-ray scaling relations
Listed in IVOA Registry (Virtual Observatory)
We present results from Chandra observations of the X-ray starburst galaxies NGC3310 and NGC2276.
Description
We detect 27 discrete sources in NGC3310, and 19 discrete sources in NGC2276 with luminosities above 1.0x10^38^erg/s. The majority of the sources have photon indices of 1.7-2.0, typical for X-ray binaries.
Both galaxies have large numbers of ultra-luminous X-ray sources (ULXs; sources with L(0.3-10.0keV)>10^39^erg/s), 14 for NGC3310 concentrated on the circumnuclear star-forming ring and north spiral arm and 11 for NGC2276 with the brighter ones on the west side of the galaxy which is compressed due to harassment by the intra-group medium it is moving into. We find for both galaxies that the ULX-hosting areas are located above the general LX-SFR scaling relations while other areas either follow or fall below the scaling relations.
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This indicates that sub-galactic regions follow the galaxy-wide scaling relations but with much larger scatter resulting from the age (and possibly metallicity) of their local stellar populations in agreement with recent theoretical and observational results. Such differences in age could be the origin of the scatter we observe in the low-SFR regime in the Lx-SFR scaling relations.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/483/711 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2019MNRAS.483..711A ui.adsabs.harvard.edu/abs/2019MNRAS.483..711A ↗
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/mnras/483/711 ↗
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/mnras/483/711 | 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 |