Table · dataset · 2022
TESS-Keck survey. IX. Radial velocities of HD1919139
Listed in IVOA Registry (Virtual Observatory)
Exoplanet systems with multiple transiting planets are natural laboratories for testing planetary astrophysics.
Description
One such system is HD191939 (TOI1339), a bright (V=9) and Sun-like (G9V) star, which TESS found to host three transiting planets (b, c, and d). The planets have periods of 9, 29, and 38days each with similar sizes from 3 to 3.4R{Earth}.
To further characterize the system, we measured the radial velocity (RV) of HD191939 over 415days with Keck/HIRES and APF/Levy. We find that M_b_=10.4{+/-}0.9M{Earth} and M_c_=7.2{+/-}1.4M{Earth}, which are low compared to most known planets of comparable radii. The RVs yield only an upper limit on M_d_ (<5.8M{Earth} at 2{sigma}).
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The RVs further reveal a fourth planet (e) with a minimum mass of 0.34{+/-}0.01M_Jup_ and an orbital period of 101.4{+/-}0.4days. Despite its nontransiting geometry, secular interactions between planet e and the inner transiting planets indicate that planet e is coplanar with the transiting planets ({Delta}i<10{deg}). We identify a second high-mass planet (f) with 95% confidence intervals on mass between 2 and 11M_Jup_ and period between 1700 and 7200 days, based on a joint analysis of RVs and astrometry from Gaia and Hipparcos.
As a bright star hosting multiple planets with well-measured masses, HD191939 presents many options for comparative planetary astronomy, including characterization with JWST.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/101 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022AJ....163..101L ui.adsabs.harvard.edu/abs/2022AJ....163..101L ↗
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/163/101 ↗
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/163/101 | 12 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 |