Qatar-4b

Qatar-4b

Qatar-4b

Super-Jupiter orbiting Qatar-4

Qatar-4b is a Super-Jupiter orbiting the star Qatar-4 every 1.8 days. It was discovered in 2016 by the Qatar Exoplanet Survey (QES). [1]

Quick Facts Discovery, Discovered by ...

This planet has a very short orbit, with only 1.8 days for it to complete an orbit around Qatar-4. The period corresponds with a separation of around 0.03 AU, which is almost 20 times closer than Mercury is to the Sun. Despite that, it has a perfectly round orbit. Since the host is an active star, Qatar-4 may be destroyed by tidal waves from the star.[2]

Qatar-4b has over 5 times the mass of Jupiter. Despite this, it has a radius that is only 13.5% larger than the latter's. This planet has an effective temperature of 1,385 K, which classifies as a hot Jupiter, and is denser than Jupiter, with about 4 times the density. [3]

References

  1. [1]
    "Astronomers discover three 'Qatar' exoplanets".
  2. [2]
    Hamer, Jacob H.; Schlaufman, Kevin C. (2019-11-01). "Hot Jupiters Are Destroyed by Tides While Their Host Stars Are on the Main Sequence". The Astronomical Journal. 158 (5): 190. arXiv:1908.06998. Bibcode:2019AJ....158..190H. doi:10.3847/1538-3881/ab3c56. ISSN 0004-6256. S2CID 201103951.
  3. [3]
    Alsubai, Khalid; et al. (2017). "Qatar Exoplanet Survey: Qatar-3b, Qatar-4b, and Qatar-5b". The Astronomical Journal. 153 (4). 200. arXiv:1606.06882. Bibcode:2017AJ....153..200A. doi:10.3847/1538-3881/aa6340. S2CID 119214858.
Share this article:

This article uses material from the Wikipedia article Qatar-4b, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.