OGLE-2005-BLG-071Lb

OGLE-2005-BLG-071Lb
Discovery
Discovered by	Udalski et al.
Discovery date	27 May 2005
Detection method	Gravitational microlensing
Orbital characteristics
Star	OGLE-2005-BLG-071L
Physical characteristics
Mass	3.8 +0.3; −0.4 ; or 3.4 ± 0.3 MJ

OGLE-2005-BLG-071Lb is a planet discovered by the Optical Gravitational Lensing Experiment (OGLE) and others in 2005, using gravitational microlensing.^[1] According to the best fit model, it has about 3.5 times the mass of Jupiter and a projected separation of 3.6 astronomical units from the star. This would result in an effective temperature around 50 K, similar to that of Neptune. However, an alternative model which gives a slightly lower mass of 3.3 times that of Jupiter and a projected separation of 2.1 AU is only slightly less likely. It may be the most massive planet currently known around a red dwarf star (though only lower limits are known for those planets detected by the radial velocity method).^[2]

References

^ Udalski, A.; et al. (2005). "A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071". The Astrophysical Journal. 628 (2): L109–L112. arXiv:astro-ph/0505451. Bibcode:2005ApJ...628L.109U. doi:10.1086/432795. S2CID 7425167.
^ Dong, Subo; et al. (2009). "OGLE-2005-BLG-071Lb, the Most Massive M Dwarf Planetary Companion?". The Astrophysical Journal. 695 (2): 970–987. arXiv:0804.1354. Bibcode:2009ApJ...695..970D. doi:10.1088/0004-637X/695/2/970. S2CID 14408891.

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[Udalski2005-1] Udalski, A.; et al. (2005). "A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071". The Astrophysical Journal. 628 (2): L109–L112. arXiv:astro-ph/0505451. Bibcode:2005ApJ...628L.109U. doi:10.1086/432795. S2CID 7425167.

[dong2009-2] Dong, Subo; et al. (2009). "OGLE-2005-BLG-071Lb, the Most Massive M Dwarf Planetary Companion?". The Astrophysical Journal. 695 (2): 970–987. arXiv:0804.1354. Bibcode:2009ApJ...695..970D. doi:10.1088/0004-637X/695/2/970. S2CID 14408891.

[1]

[2]

Discovery
Discovered by	Udalski et al.
Discovery date	27 May 2005
Detection method	Gravitational microlensing
Orbital characteristics
Star	OGLE-2005-BLG-071L
Physical characteristics
Mass	3.8 ^+0.3 _−0.4 or 3.4 ± 0.3 `M`_J

See also

References