HR 2562 b

HR 2562 b
Exoplanet List of exoplanets
Parent star
Star HR 2562
Constellation Pictor
Right ascension (α) 06h 50m 01.0150s[1]
Declination (δ) −60° 14′ 56.921″[1]
Apparent magnitude (mV) 6.098[2]
Spectral type F5 V Fe+0.4[3]
Mass (m) 1.5[4] M☉
Radius (r) 1.38[5] R☉
Temperature (T) 6534[3] K
Metallicity [Fe/H] 0.08[6]
Age 0.85[6] Gyr
Orbital elements
Semi-major axis(a) 20.3 ± 0.3[4] AU
    618 ± 4[4] mas
Physical characteristics
Mass(m)30 ± 15[4] MJ
Radius(r)1.11 ± 0.11[4] RJ
Surface gravity(g)log(g) = 4.70 ± 0.32[4] m/s²
Temperature (T) 1200 ± 100 K[4]
Discovery information
Discovery date 23 August 2016
Discoverer(s) Q. Konopacky et al.[4]
Discovery method Direct imaging
Discovery status Confirmed
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HR 2562b is a substellar companion of debris disk host star HR 2562.[4] Initially categorised as brown dwarf, its exact mass is unknown, and is thought to be 30 ± 15 Jupiter masses,[4] and its luminosity is about two one-thousandths of a percent of a solar luminosity.[4][note 1] If classified as a brown dwarf, its spectral type of L7±3.[4] It was first observed in 2016 using the Gemini Planet Imager.

According to NASA Exoplanet Archive, with a mass of 30 MJ, it is listed as the most massive planet.

References

  1. 1 2 Gaia Collaboration (2016). "Gaia Data Release 1". Astronomy & Astrophysics. 595: A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.
  2. ↑ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
  3. 1 2 Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132: 161. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 Konopacky, Quinn M.; Rameau, Julien; Duchêne, Gaspard; Filippazzo, Joseph C.; Godfrey, Paige A. Giorla; Marois, Christian; Nielsen, Eric L.; Pueyo, Laurent; Rafikov, Roman R. (2016). "Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562". The Astrophysical Journal Letters. 829 (1): L4. arXiv:1608.06660. Bibcode:2016ApJ...829L...4K. doi:10.3847/2041-8205/829/1/L4. ISSN 2041-8205.
  5. ↑ Rhee, Joseph H.; et al. (May 2007). "Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs". The Astrophysical Journal. 660 (2): 1556–1571. arXiv:astro-ph/0609555. Bibcode:2007ApJ...660.1556R. doi:10.1086/509912.
  6. 1 2 Maldonado, J.; Eiroa, C.; Villaver, E.; Montesinos, B.; Mora, A. (May 2012). "Metallicity of solar-type stars with debris discs and planets". Astronomy and Astrophysics. 541. arXiv:1202.5884. Bibcode:2012A&A...541A..40M. doi:10.1051/0004-6361/201218800.

Notes

  1. ↑ The luminosity of HR 2562 b is log(L/L☉) = −4.62 ± 0.12.[4]


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