Table · dataset · 2016
27yr of RV observations of HD 219134
Listed in IVOA Registry (Virtual Observatory)
The nearby (6.5pc) star HD219134 was recently shown by Motalebi+ (2015, J/A+A/584/A72) and Vogt+ (2015ApJ...814...12V) to host several planets, the innermost of which is transiting.
Description
We present 27yr of radial velocity (RV) observations of this star from the McDonald Observatory Planet Search program, and 19yr of stellar activity data. We detect a long-period activity cycle measured in the CaII SHK index, with a period of 4230+/-100d (11.7yr), very similar to the 11yr solar activity cycle.
Although the period of the Saturn-mass planet HD219134h is close to half that of the activity cycle, we argue that it is not an artifact due to stellar activity. We also find a significant periodicity in the SHK data due to stellar rotation with a period of 22.8d. This is identical to the period of planet f identified by Vogt+ (2015ApJ...814...12V), suggesting that this RV signal might be caused by rotational modulation of stellar activity rather than a planet.
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Analysis of our RVs allows us to detect the long-period planet HD219134h and the transiting super-Earth HD219134b. Finally, we use our long time baseline to constrain the presence of longer period planets in the system, excluding to 1{sigma} objects with Msini>0.36M_J_ at 12yr (corresponding to the orbital period of Jupiter) and Msini>0.72M_J_ at a period of 16.4yr (assuming a circular orbit for an outer companion).
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/821/74 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2016ApJ...821...74J ui.adsabs.harvard.edu/abs/2016ApJ...821...74J ↗
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/apj/821/74 ↗
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/apj/821/74 | 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 | |
| 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 |