Table · dataset · 2024
Radial velocity follow up of 14 Her system
Listed in IVOA Registry (Virtual Observatory)
We combine Hubble Space Telescope (HST) Fine Guidance Sensor, Hipparcos, and Gaia DR3 astrometric observations of the K0V star 14 Her with the results of an analysis of extensive ground-based radial velocity data to determine perturbation orbits and masses for two previously known companions, 14Herb and c.
Description
Radial velocities obtained with the Hobby-Eberly Telescope and from the literature now span over 25 years. With these data we obtain improved radial velocity (RV) orbital elements for both the inner companion, 14Herb and the long-period outer companion, 14 Her c.
We also find evidence of an additional RV signal with P=3789d. We then model astrometry from Hipparcos, HST, and Gaia with RV results to obtain system parallax and proper motion, perturbation periods, inclinations, and sizes due to 14Herb and c. We find Pb=1767.6{+/-}0.2days, perturbation semimajor axis {alpha}b=1.3{+/-}0.1mas, and inclination ib=36{deg}{+/-}3{deg}, Pc=52160{+/-}1028days, perturbation semimajor axis {alpha}c=10.3{+/-}0.7mas, and inclination ic=82{deg}{+/-}14{deg}.
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In agreement with a past investigation, the 14Herb, c orbits exhibit significant mutual inclination. Assuming a primary mass M*=0.98{+/-}0.04M{sun}, we obtain companion masses M_b_=8.5_-0.8_^+1.0^M{Jup}, and M_c_=7.1_-0.6_^+1.0^M{Jup}.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/166/27 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2023AJ....166...27B ui.adsabs.harvard.edu/abs/2023AJ....166...27B ↗
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/aj/166/27 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/166/27 | 13 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 | |
| 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 |