Table · dataset · 2026
WD-MS binaries SEDs
Listed in IVOA Registry (Virtual Observatory)
Understanding the demographics of white dwarf-main sequence (WDMS) binaries is key to uncovering the formation of various stellar exotica and refining the details of binary stellar evolution.
Description
Despite several dedicated efforts to identify unresolved WD-MS binaries, their population remains incomplete, even within a 100pc volume-limited sample. This study aims to identify WD-MS binaries hidden within the main sequence of the optical color-magnitude diagram (CMD), improving the completeness of WD-MS binaries within a volume-limited sample of 100pc.
We use NUV-optical CMDs to distinguish unresolved WD-MS binaries from the rest of the populations. High- precision astrometric and photometric data from Gaia DR3 and NUV data from GALEX GR6/7 are combined to construct CMDs. Using the binary spectral energy distribution (SED) fitting algorithm within the Virtual Observatory SED Analyzer (VOSA) tool, we estimate stellar parameters such as effective temperature, bolometric luminosity, and radii.
Read the rest (2 more)
The WD masses are determined using white dwarf evolutionary models. As we use the sources which are detected only in NUV band of GALEX, this study directly complements to majority of the previous studies. We identify 347 WDMS binary candidates within 100pc, with 188 newly reported.
Our method predominantly identifies binaries having cooler WDs (<=10000K) compared to previous studies. The WD masses range from ~0.2 and 1.3M_{sun}_ , and most MS companions are of M spectral type.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/709/A114 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...709A.114N ui.adsabs.harvard.edu/abs/2026A%26A...709A.114N ↗
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/a114 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/709/a114 | 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:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:uv | 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 |