Submission declined on 15 April 2024 by AngusWOOF (
talk).
The proposed article does not have sufficient content to require an article of its own, but it could be merged into the existing article at
WASP-49. Since anyone can edit Wikipedia, you are welcome to add that information yourself. Thank you.
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Comment: this is already covered by the WASP-49 article. Please issue a split request and discussion if you feel it is independently notable from that.
AngusW🐶🐶F (
bark •
sniff) 18:00, 15 April 2024 (UTC)
WASP-49b was found to possess an extensive sodium envelope in 2017.[2] Additionally, the
Hubble Space Telescope found clear absorption features in
near-UV light, indicating the presence of magnesium and iron. These metals may not be gravitationally bound to the planet, but could be magnetically confined to it.[3] WASP-49b has an equilibrium temperature of 1369±39
K, making it a
hot-Jupiter or
hot-Saturn planet.
Potential exomoon
The existence of a sodium envelope around WASP-49b could be explained by the presence of a volcanically active,
Io-likeexomoon.[4] However, this idea remains speculative. Additionally, 3 sodium "booms" were detected over a period of 40 minutes each, as well as
Doppler-shifts of the planet indicative of a third body orbiting WASP-49b with a period of 8 hours, near the planet's
Roche limit.[5]
References
^Lendl, M.; Anderson, D. R.; Collier-Cameron, A.; Doyle, A. P.; Gillon, M.; Hellier, C.; Jehin, E.; Lister, T. A.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Smalley, B.; Segransan, D.; Smith, A. M. S. (August 2012). "WASP-42 b and WASP-49 b: two new transiting sub-Jupiters". Astronomy & Astrophysics. 544: A72.
arXiv:1205.2757.
Bibcode:
2012A&A...544A..72L.
doi:
10.1051/0004-6361/201219585.
ISSN0004-6361.
^
abWyttenbach, A.; Lovis, C.; Ehrenreich, D.; Bourrier, V.; Pino, L.; Allart, R.; Astudillo-Defru, N.; Cegla, H. M.; Heng, K.; Lavie, B.; Melo, C.; Murgas, F.; Santerne, A.; Ségransan, D.; Udry, S. (June 2017). "Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b". Astronomy & Astrophysics. 602: A36.
arXiv:1702.00448.
Bibcode:
2017A&A...602A..36W.
doi:
10.1051/0004-6361/201630063.
ISSN0004-6361.