Poster Open Access
Tidal star-planet interaction revealed by its imact on stellar activity
Ilic, Nikoleta; Poppenhaeger, Katja; Hosseini, S. Marzieh
The project we have been working on is concerned with the activity
and evolution of exoplanet hosting stars.
The hypothesis we were exploring is that close-in, more massive exoplanets
may influence the rotation evolution of the host in particular,
making the stellar host more active than expected for given age and SpT.
To avoid the dependence on age in estimating the expected activity level,
we only investigated planet-hosting stars that have a stellar companion,
which we used as a reference for the expected activity level
(assuming ofc that they formed at approx the same time and from the same interstellar cloud).
As the activity indicator, we used the X-ray Luminosity
which accounts for the activity of the stellar corona.
Although the sample does not allow for a definite conclusion
our results point us to a positive correlation between
the activity level of the planet host and the strength of the SPI.
| Name | Size | |
|---|---|---|
|
ilic_n.pdf
md5:26aed617ebfc6d63b0b09c28e99f2238 |
161.3 kB | Download |
Poppenhaeger et al., 2014. (arXiv:1404.1073)
Mugrauer, 2019 (doi:10.1093/mnras/stz2673)
Cuntz et al., 2000 (doi:10.1086/312609)
| All versions | This version | |
|---|---|---|
| Views | 75 | 75 |
| Downloads | 65 | 65 |
| Data volume | 10.5 MB | 10.5 MB |
| Unique views | 71 | 71 |
| Unique downloads | 62 | 62 |
- Publication date:
- February 25, 2021
- DOI:
-
- Keyword(s):
- Cool Stars on the main sequence
- Meeting:
- The 20.5 Cambridge Workshops of Cool Stars, Stellar Systems and the Sun (CS20.5), Virtually anywhere, March 2-4, 2021
- Communities:
- License (for files):
- Creative Commons Attribution 4.0 International