Table · dataset · 2002
Radial Velocities for 889 late-type stars
Listed in IVOA Registry (Virtual Observatory)
We report radial velocities for 844 FGKM-type main sequence and subgiant stars and 45 K giants, most of which had either low-precision velocity measurements or none at all.
Description
These velocities differ from the standard stars of Udry et al. (1999IAUCo.170..354U) by 0.035km/s (RMS) for the 26 FGK standard stars in common. The zero-point of our velocities differs from that of Udry et al.: <V_present_-V_Udry_>=+0.053km/s.
Thus these new velocities agree with the best known standard stars both in precision and zero-point, to well within 0.1km/s. Nonetheless, both these velocities and the standards suffer from three sources of systematic error, namely, convective blueshift, gravitational redshift, and spectral type mismatch of the reference spectrum. These systematic errors are here forced to be zero for G2V stars by using the Sun as reference, with Vesta and day sky as proxies.
Read the rest (3 more)
But for spectral types departing from solar, the systematic errors reach 0.3km/s in the F and K stars and 0.4km/s in M dwarfs. Multiple spectra were obtained for all 889 stars during four years, with the HIRES echelle spectrometer (Vogt et al., 1994, , Proc. Soc.
Photo-Opt. Instr. Eng., 2198, 362) on the 10m Keck I telescope and with the "Hamilton" echelle spectrometer fed by either the 3m Shane or the 0.6m Coude Auxilliary (CAT) Telescopes (Vogt, 1987PASP...99.1214V), and 782 of them exhibit velocity scatter less than 0.1km/s.
These stars may serve as radial velocity standards if they remain constant in velocity. We found 11 new spectroscopic binaries and report orbital parameters for them.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/141/503 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2002ApJS..141..503N ui.adsabs.harvard.edu/abs/2002ApJS..141..503N ↗
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/apjs/141/503 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 73%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apjs/141/503 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| 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 | |
| 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 |