2MASS 1503+2525 was discovered in 2003 by Adam J. Burgasser et al. in wide-field search for T dwarfs using the
Two Micron All Sky Survey (2MASS).
Distance
Originally the most precise distance estimate of 2MASS 1503+2525 is a
trigonometric parallax, published by Dupuy and Liu in 2012: 157.2 ± 2.2
mas, corresponding to a distance 6.36 ± 0.09
pc, or 20.7 ± 0.3
ly.[6] The parallax was further refined by Gaia mission in 2018 to 154.9208±1.1025
mas. The brown dwarf 2MASS 1503+2525 lies in local void 6.5 parsecs across, where relatively few stars and brown dwarfs are located.[7]
Physical properties
The 2MASS J15031961+2525196 is the spectral standard of the spectral class T5.[8]
^Martin, Emily C.; Mace, Gregory N.; McLean, Ian S.; Logsdon, Sarah E.; Rice, Emily L.; Kirkpatrick, J. Davy; Burgasser, Adam J.; McGovern, Mark R.; Prato, Lisa (2017), "Surface Gravities for 228 M, L, and T Dwarfs in the NIRSPEC Brown Dwarf Spectroscopic Survey", The Astrophysical Journal, 838 (1): 73,
arXiv:1703.03811,
Bibcode:
2017ApJ...838...73M,
doi:10.3847/1538-4357/aa6338,
S2CID28337547
^Robert, Jasmin; Gagné, Jonathan; Artigau, Étienne; Lafrenière, David; Nadeau, Daniel; Doyon, René; Malo, Lison; Albert, Loïc; Simard, Corinne; Gagliuffi, Daniella C. Bardalez; Burgasser, Adam J. (2016), "A Brown Dwarf Census from the Simp Survey", The Astrophysical Journal, 830 (2): 144,
arXiv:1607.06117,
Bibcode:
2016ApJ...830..144R,
doi:10.3847/0004-637X/830/2/144,
S2CID119192461
^Tinney, C. G.; Kirkpatrick, J. Davy; Faherty, Jacqueline K.; Mace, Gregory N.; Cushing, Mike; Gelino, Christopher R.; Burgasser, Adam J.; Sheppard, Scott S.; Wright, Edward L. (2018), "New y and T Dwarfs from WISE Identified by Methane Imaging", The Astrophysical Journal Supplement Series, 236 (2): 28,
arXiv:1804.00362,
Bibcode:
2018ApJS..236...28T,
doi:10.3847/1538-4365/aabad3,
S2CID54970570