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X-Ray Irradiation of the Giant Planet Orbiting the T Tauri Star TAP 26
- Source :
- The Astrophysical Journal, Vol 967, Iss 2, p 126 (2024)
- Publication Year :
- 2024
- Publisher :
- IOP Publishing, 2024.
-
Abstract
- We present new Chandra X-ray observations of TAP 26, a ≈17 Myr old magnetically active weak-lined T Tauri star that has been reported to host a massive planet in a ≈10.8 day orbit. At a separation of a = 0.097 au the planet will be exposed to intense X-ray and UV radiation from the star. The first observation caught the star in a state of elevated X-ray emission with variability on a timescale of a few hours and an X-ray temperature kT _x ≈ 2–4 keV. Two subsequent observations 5–10 days later showed slow variability and a lower X-ray flux and temperature ( kT _x ≈ 1 keV). We characterize the X-ray emission and estimate the X-ray ionization and heating rates that will need to be incorporated into realistic models of the planet’s atmosphere.
- Subjects :
- X-ray astronomy
T Tauri stars
Star-planet interactions
Astrophysics
QB460-466
Subjects
Details
- Language :
- English
- ISSN :
- 15384357
- Volume :
- 967
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- The Astrophysical Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5fe20a6416e1403884e31412aa5fa686
- Document Type :
- article
- Full Text :
- https://doi.org/10.3847/1538-4357/ad4465