HD 86226 b

HD 86226 b is a gas giant exoplanet discovered by the Magellan Planet Search Program in 2010.[1] It was confirmed in data collected by the CORALIE spectrograph on the Swiss 1.2-metre Leonhard Euler Telescope in 2012.[2] It takes about 4.6 years to orbit its G-type star and was initially believed to have a minimal mass of 0.92 Jupiters.[3] Discovery of the second planet in the system have lead to the revised mass of the HD 86226 b in 2020, now estimated to be 0.45+0.04
0.05
MJ.[4]

HD 86226 b
Discovery
Discovered byArriagada et al.
Discovery siteLas Campanas Observatory
Discovery dateJanuary 26, 2010
Doppler spectroscopy
Orbital characteristics
2.73 ± 0.06 AU (408,400,000 ± 9,000,000 km)
Eccentricity0.059+0.062
0.039
1628+22
21
d
2454821 ± 288
StarHD 86226

    References

    1. Arriagada, P.; et al. (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". The Astrophysical Journal. 711 (2): 1229. arXiv:1001.4093. Bibcode:2010ApJ...711.1229A. doi:10.1088/0004-637X/711/2/1229.
    2. Marmier, M.; et al. (2013). "The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets". Astronomy & Astrophysics. 551: A90. arXiv:1211.6444. Bibcode:2013A&A...551A..90M. doi:10.1051/0004-6361/201219639.
    3. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2020-01-10.
    4. TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet, 2020, arXiv:2007.13927

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.