WISEPA J041022.71+150248.5 (abbreviated WISE 0410+1502) is a sub-brown dwarf of spectral class Y0, located in the constellation Taurus. At approximately 21.6 light-years from Earth, it is the nearest celestial object in Taurus.
History of observations
Discovery
WISE 0410+1502 was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite—NASA infrared-wavelength 40cm (16in) space telescope, which mission lasted from December 2009 to February 2011. WISE 0410+1502 has two discovery papers: Kirkpatrick et al. (2011) and Cushing et al. (2011), however, basically with the same authors and published nearly simultaneously.
Kirkpatricket al. presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 0410+1502.
Cushing et al. presented discovery of seven brown dwarfs—one of T9.5 type, and six of Y-type—first members of the Y spectral class, ever discovered and spectroscopically confirmed, including "archetypal member" of the Y spectral class WISE 1828+2650, and WISE 0410+1502. These seven objects are also the faintest seven of 98 brown dwarfs, presented in Kirkpatrick et al. (2011).
Distance
Currently the most accurate distance estimate of WISE 0410+1502 is a trigonometric parallax, published in 2021 by Kirkpatrick et al.: 151.3±2.0mas, corresponding to a distance 6.61±0.09pc, or 21.6±0.3ly. An outdated parallax by Marsh et al. in 2013 corresponded to an even closer distance of approximately 14 light-years.
Space motion
WISE 0410+1502 has a large proper motion of 2,418.3±1.1 milliarcseconds per year. The brown dwarf WISE 0410+1502 lies in local void 6.5 parsecs across, where relatively few stars and brown dwarfs are located.
Physical properties
The object's temperature estimate is 451±88K. Cushing et al. obtained a low-resolution Magellan/FIRE spectrum and later they obtained a higher quality spectrum with Hubble WFC3, confirming the Y0 spectral type. The fitting of the spectrum with cloudy models produces realistic values and Leggett et al. finds a mass of about 10–15 MJ. The atmosphere is likely in a chemical disequilibrium and a cloud-free disequilibrium model does fit well with the Y- and H-band, but does not fit well with the J-band.
↑Since its mass estimate 3 (3–9)MJup is below the lower brown dwarf mass limit ~13MJup, it may be actually a sub-brown dwarf or a rogue planet.
↑These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.
123456789101112Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amy K.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E.; Petty, Sara M.; Stanford, Spencer Adam; Tsai, Chao-Wei; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Bochanski, John J.; Burgasser, Adam J.; Capak, Peter L.; Cruz, Kelle L.; Hinz, Philip M.; Kartaltepe, Jeyhan S.; Knox, Russell P.; Manohar, Swarnima; Masters, Daniel; Morales-Calderon, Maria; Prato, Lisa A.; Rodigas, Timothy J.; Salvato, Mara; Schurr, Steven D.; Scoville, Nicholas Z.; Simcoe, Robert A.; Stapelfeldt, Karl R.; Stern, Daniel; Stock, Nathan D.; Vacca, William D. (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement. 197 (2): 19. arXiv:1108.4677v1. Bibcode:2011ApJS..197...19K. doi:10.1088/0067-0049/197/2/19. S2CID16850733.
12345678Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Mainzer, A.; Marsh, Kenneth A.; Beichman, Charles A.; Burgasser, Adam J.; Prato, Lisa A.; Simcoe, Robert A.; Marley, Mark S.; Saumon, D.; Freedman, Richard S.; Eisenhardt, Peter R.; Wright, Edward L. (2011). "The Discovery of Y Dwarfs using Data from the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal. 743 (1): 50. arXiv:1108.4678. Bibcode:2011ApJ...743...50C. doi:10.1088/0004-637X/743/1/50. S2CID286881.
↑Cushing, Michael C.; Trucks, Jesica L.; etal. (June 2026). "A Spitzer Space Telescope Exploration Science Program to Search for Y Dwarf Variability". The Astronomical Journal. arXiv:2606.26411.
↑Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Mace, Gregory N.; Skrutskie, Michael F.; Gould, Andrew (2014-05-01). "Three New Cool Brown Dwarfs Discovered with the Wide-field Infrared Survey Explorer (WISE) and an Improved Spectrum of the Y0 Dwarf WISE J041022.71+150248.4". The Astronomical Journal. 147 (5): 113. arXiv:1402.1378. Bibcode:2014AJ....147..113C. doi:10.1088/0004-6256/147/5/113. ISSN0004-6256.
↑Leggett, S. K.; Morley, Caroline V.; Marley, M. S.; Saumon, D.; Fortney, Jonathan J.; Visscher, Channon (2013-02-01). "A Comparison of Near-infrared Photometry and Spectra for Y Dwarfs with a New Generation of Cool Cloudy Models". The Astrophysical Journal. 763 (2): 130. arXiv:1212.1210. Bibcode:2013ApJ...763..130L. doi:10.1088/0004-637X/763/2/130. ISSN0004-637X.