HD 108236 explained
HD 108236 is a G-type main-sequence star. Its surface temperature is 5660 K. HD 108236 is severely depleted in heavy elements compared to the Sun, with a metallicity Fe/H index of −0.28 (52% of the Solar System), and is probably older than the Sun at an age of 6.7 billion years.
According to WISE mission data, the star was suspected to be surrounded by a debris disk, but a reanalysis of the data rejected the debris disk hypothesis by 2014. The reason for the false positive was contamination from a nearby infrared source.
Planetary system
In 2020, four planets orbiting HD 108236 were discovered[1] by the transit method, followed by another one in 2021.[2]
See also
Notes and References
- 2004.11314. 2021. TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236. Daylan. Tansu. Pingle. Kartik. Wright. Jasmine. Guenther. Maximilian N.. Stassun. Keivan G.. Kane. Stephen R.. Vanderburg. Andrew. Jontof-Hutter. Daniel. Rodriguez. Joseph E.. Shporer. Avi. Huang. Chelsea. Mikal-Evans. Tom. Badenas-Agusti. Mariona. Collins. Karen A.. Rackham. Benjamin. Quinn. Sam. Cloutier. Ryan. Collins. Kevin I.. Guerra. Pere. Jensen. Eric L. N.. Kielkopf. John F.. Massey. Bob. Schwarz. Richard P.. Charbonneau. David. Lissauer. Jack J.. Irwin. Jonathan M.. Basturk. Ozgur. Fulton. Benjamin. Soubkiou. Abderahmane. Zouhair. Benkhaldoun. The Astronomical Journal. 161. 2. 85. 10.3847/1538-3881/abd73e. 2021AJ....161...85D . 216080635. 29 . free .
- 2101.00663. 2021. CHEOPS observations of the HD 108236 planetary system: A fifth planet, improved ephemerides, and planetary radii. Bonfanti. A.. Delrez. L.. Hooton. M. J.. Wilson. T. G.. Fossati. L.. Alibert. Y.. Hoyer. S.. Mustill. A. J.. Osborn. H. P.. Adibekyan. V.. Gandolfi. D.. Salmon. S.. Sousa. S. G.. Tuson. A.. Van Grootel. V.. Cabrera. J.. Nascimbeni. V.. Maxted. P. F. L.. Barros. S. C. C.. Billot. N.. Bonfils. X.. Borsato. L.. Broeg. C.. Davies. M. B.. Deleuil. M.. Demangeon. O. D. S.. Fridlund. M.. Lacedelli. G.. Lendl. M.. Persson. C.. Astronomy & Astrophysics. 646. A157. 10.1051/0004-6361/202039608. 2021A&A...646A.157B . 230437723. 29.
