| Discovery | |
|---|---|
| Discovered by | Cochran et al. |
| Discovery site | Hobby-Eberly Telescope |
| Discovery date | 8 July 2004 |
| Detection method | doppler spectroscopy |
| Orbital characteristics | |
| Semi-major axis | 0.277±0.015 AU |
| Eccentricity | 0.6745±0.0019 |
| Orbital period (sidereal) | 55.01292±0.00062 d |
| Time of periastron | 2463048.16±0.025 |
| Argument of periastron | 220.78±0.27 |
| Semi-amplitude | 203.47±0.75 |
| Star | HD 37605 |
HD 37605 b is an extrasolar planet that is 2.84 times more massive than Jupiter. It orbits close to the star, taking 54 days to revolve around the parent star HD 37605. Its orbit is highly eccentric, around 74%. Distance from HD 37605 ranges from 0.069 to 0.453 astronomical units.
It is the first planet found by Hobby-Eberly Telescope (HET) in July 2004.
In a simulation, HD 37605 b's orbit "sweeps clean" most test particles within 0.5 AU; leaving only asteroids "in low-eccentricity orbits near the known planet’s apastron distance, near the 1:2 mean-motion resonance" with oscillating eccentricity up to 0.06, and also at 1:3 with oscillating eccentricity up to 0.4.
References
- ^ Cochran, Michael; et al. (2004). "The First Hobby-Eberly Telescope Planet: A Companion to HD 37605". The Astrophysical Journal Letters. 611 (2): L133 – L136. arXiv:astro-ph/0407146. Bibcode:2004ApJ...611L.133C. doi:10.1086/423936. S2CID 85460384.
- ^ Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.
- Wittenmyer; Endl, Michael; Cochran, William D.; Levison, Harold F. (2007). "Dynamical and Observational Constraints on Additional Planets in Highly Eccentric Planetary Systems". The Astronomical Journal. 134 (3): 1276–1284. arXiv:0706.1962. Bibcode:2007AJ....134.1276W. doi:10.1086/520880. S2CID 14345035.
External links
- "HD 37605". Exoplanets. Archived from the original on 2009-11-24. Retrieved 2008-10-29.