Table · dataset · 2024
Bright white dwarfs with IR excess
Listed in IVOA Registry (Virtual Observatory)
White dwarfs (WDs) are generally intrinsically faint in the infrared (IR).
Description
Excess emission in the infrared results from low-mass companions or dusty material, potentially linked to the on-going accretion of planetary material. This work presents a new catalog of white dwarfs with (candidate) infrared excess.
The final sample comes from a cross-match between the Gaia Early Data Release (EDR3) white dwarf candidates, and the CatWISE catalog, with candidate infrared excesses determined considering both magnitude and color excess. A magnitude excess is found to be more reliable than a color excess. The final catalog contains 554 infrared excess candidates (446 are presented for the first time here) from 41020 white-dwarf candidates with a Gaia magnitude of G<18.5mag.
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Our infrared excess candidate sample extends to a white-dwarf temperature range of 4500-98000K and a white-dwarf mass range of 0.1-1.2M_{sun}_. We caution that these objects should be treated as infrared excess candidates until confirmed with other methods. We present a three-fold increase in the sample of white dwarfs known to have infrared excesses.
Among the sample applications is the study of the accretion of planetary material by white dwarfs and the identification of new white-dwarf-brown-dwarf pairs.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/688/A168 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2024A&A...688A.168M ui.adsabs.harvard.edu/abs/2024A%26A...688A.168M ↗
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/688/a168 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Infrared
- 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/688/a168 | 11 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:infrared | 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 |