Table · dataset · 2018
Binary systems among nearby dwarfs searching
Listed in IVOA Registry (Virtual Observatory)
Our goal is to find previously unknown binary systems among low-mass dwarfs in the solar neighborhood and to test the search technique.
Description
The basic ideas are to reveal the images of stars with significant ellipticities and/or asymmetries compared to the background stars on CCD frames and to subsequently determine the spatial parameters of the binary system and the magnitude difference between its components. For its realization we have developed a method based on an image shapelet decomposition.
All of the comparatively faint stars with large proper motions (Vmag>13^m^, {mu}>300mas/yr) for which the 'duplicate source' flag in the Gaia DR1 catalogue is equal to one have been included in the list of objects for our study. As a result, we have selected 702 stars. To verify our results, we have performed additional observations of 65 stars from this list with the Pulkovo 1-m 'Saturn' telescope (2016-2017).
Read the rest (2 more)
We have revealed a total of 138 binary candidates (nine of them from the `Saturn' telescope and SDSS data). Six program stars are known binaries. The images of the primaries of the comparatively wide pairs WDS 14519+5147, WDS 11371+6022, and WDS 15404+2500 are shown to be resolved into components; therefore, we can talk about the detection of triple systems.
The angular separation {rho}, position angle, and component magnitude difference {Delta}m have been estimated for almost all of the revealed binary systems. For most stars 1.5''<{rho}<2.5'', while {Delta}m<1.5^m^.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/44/124 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2018AstL...44..103K ui.adsabs.harvard.edu/abs/2018AstL...44..103K ↗
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/pazh/44/124 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Image 75% · Stellar astronomy and planetary systems 75%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/pazh/44/124 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:field:510109 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (75%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:image | 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 |