Astronomy:HD 175167 b
| Discovery[1] | |
|---|---|
| Discovered by | Arriagada et al. |
| Discovery site | Las Campanas Observatory |
| Discovery date | January 26, 2010 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 2.438+0.064 −0.071 astronomical unit|AU[2] | |
| Eccentricity | 0.529±0.002[3] |
| Orbital period | 1275.8±0.4 d[3] 3.493±0.001 y |
| Average Orbital speed | 20.3[citation needed] |
| Inclination | 38.6°±1.7°[3] |
| astron|astron|helion}} | 2456171+16 −21[2] |
| 343.4°+5.2° −4.2°[2] | |
| Semi-amplitude | 148.3±4.1 m/s[4] |
| Star | HD 175167 |
| Physical characteristics | |
| Mass | 10.2±0.4 Jupiter mass[3] |
HD 175167 b is an exoplanet orbiting HD 175167, which is a G type star within the Pavo constellation 232 light-years away from the Earth. The planet was discovered by the Magellan Planet Search Program as the astronomical object fit the Keplerian orbital model. During the observations 13 doppler velocity tests were conducted, which showed this object's mass was at least 7.8 Jovian-masses and its orbit has a high eccentricity. The exoplanet takes 3.53 years to complete a full stellar orbit.[5][1][6]
An astrometric measurement of the planet's inclination and true mass was published in 2022 as part of Gaia DR3.[7] A number of subsequent studies in 2022 and 2023 have determined astrometric orbits for HD 175167 b,[2] estimating masses ranging from 6.4 |♃|J}}}}}}[8] to 15 MJ,[9][4] the latter of which would put it at the borderline of being a brown dwarf. The most recent and accurate mass measurement is 10 MJ, making it a massive super-Jovian planet.[3]
See also
References
- ↑ 1.0 1.1 Pamela Arriagada; Paul Butler; Dante Minniti; Mercedes Lopez-Morales; Shectman; Adams; Boss; Chambers (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". The Astrophysical Journal 711 (2): 1229–1235. doi:10.1088/0004-637X/711/2/1229. Bibcode: 2010ApJ...711.1229A.
- ↑ 2.0 2.1 2.2 2.3 Xiao, Guang-Yao et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics 23 (5): 055022. doi:10.1088/1674-4527/accb7e. Bibcode: 2023RAA....23e5022X.
- ↑ 3.0 3.1 3.2 3.3 3.4 Gan, Tianjun (October 2023). "Gaia Astrometry and MIKE+PFS Doppler Data Joint Analysis Reveals that HD 175167b is a Massive Cold Jupiter". Research Notes of the AAS 7 (10): 226. doi:10.3847/2515-5172/ad0643. Bibcode: 2023RNAAS...7..226G.
- ↑ 4.0 4.1 Unger, N. et al. (October 2023). "Exploring the Brown Dwarf Desert with Precision Radial Velocities and Gaia DR3 Astrometric Orbits". Astronomy & Astrophysics. doi:10.1051/0004-6361/202347578.
- ↑ "HD 175167". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+HD. Retrieved 2010-02-12.
- ↑ "Planet : HD 175167 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_175167_b--643/.
- ↑ Gaia Collaboration et al. (June 2023). "Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure". Astronomy & Astrophysics 674: A34. doi:10.1051/0004-6361/202243782. Bibcode: 2023A&A...674A..34G.
- ↑ Feng, Fabo et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series 262 (21): 21. doi:10.3847/1538-4365/ac7e57. Bibcode: 2022ApJS..262...21F.
- ↑ Winn, Joshua N. (September 2022). "Joint Constraints on Exoplanetary Orbits from Gaia DR3 and Doppler Data". The Astronomical Journal 164 (5): 196. doi:10.3847/1538-3881/ac9126. Bibcode: 2022AJ....164..196W.
Coordinates: 
19h 00m 00.84s, −69° 56′ 39.3″
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