WISE 0607+2429

Coordinates: 06h 07m 38.65s, +24° 29′ 53.5″

WISEP J060738.65+242953.4
Observation data
Epoch 2010.30[1]      Equinox J2000[1]
Constellation Gemini
Right ascension 06h 07m 38.65s[1]
Declination 24° 29′ 53.5″[1]
Characteristics
Spectral type L8[1]
Apparent magnitude (i) 20.02 ± 0.03[1]
Apparent magnitude (z) 16.94 ± 0.01[1]
Apparent magnitude (J (2MASS filter system)) 14.22 ± 0.03[1]
Apparent magnitude (H (2MASS filter system)) 13.04 ± 0.03[1]
Apparent magnitude (KS (2MASS filter system)) 12.47 ± 0.02[1]
Astrometry
Proper motion (μ) RA: -470 ± 10[1] mas/yr
Dec.: -330 ± 20[1] mas/yr
Distance25.4+4.6
−3.9[1] ly
(7.8+1.4
−1.2[1] pc)
Details[1]
Mass0.03—0.072 M☉
Luminosity10−4.56 ± 0.09 L☉
Temperature1460 ± 90 K
Other designations
WISEP J060738.65+242953.4[1]
W0607+2429[1]
2MASSW J06073908+2429574[1]
2MASS J06073908+2429574[2]
SDSS J060738.79+242954.4[1]
Database references
SIMBADdata

WISEP J060738.65+242953.4 (designation is abbreviated to W0607+2429[1]) is a brown dwarf of spectral class L8,[1] located in constellation Gemini at approximately 25 light-years from Earth.[1]

Discovery

WISEP J060738.65+242953.4 was discovered in 2012 by Castro & Gizis from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. There are also precovery identifications of this object in Two Micron All-Sky Survey (2MASS) data (observation epoch 1998.11) and in the Sloan Digital Sky Survey (SDSS) (DR7) (observation epoch 2006.98).[1] In 2012 Castro & Gizis published a paper in The Astrophysical Journal, where they presented discovery of a newfound by WISE L-type brown dwarf WISEP J060738.65+242953.4 (a single discovery, presented in the article).[1]

Distance

Trigonometric parallax of WISEP J060738.65+242953.4 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrophotometric — means (see table).

WISEP J060738.65+242953.4 distance estimates

Source Parallax, mas Distance, pc Distance, ly Ref.
Castro & Gizis (2012) 7.8+1.4
−1.2 		25.4+4.6
−3.9 		[1]

Non-trigonometric distance estimates are marked in italic.

Physical properties

WISEP J060738.65+242953.4 has temperature 1460 ± 90 K and bolometric luminosity 10−4.56 ± 0.09 Solar luminosities (the estimates are based on the object's spectral class (L8)).[3] Mass estimates, determined from this temperature, are from 0.03 (for an assumed age 0.5 Gyr) to 0.072 (for an assumed age 10 Gyr) Solar masses, anyway below the hydrogen-burning limit, which implies that WISEP J060738.65+242953.4 is not a true star, but only a substellar object.[3]

See also

L-type brown dwarfs, presented in Kirkpatrick et al. (2011):[4]

L-type brown dwarf, presented in Gizis et al. (2011):[3]

L-type brown dwarf, presented in Gizis et al. (2012):[5]

M-type brown dwarf, presented in Kirkpatrick et al. (2011):[4]

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Castro, Philip J.; Gizis, John E. (2012). "Discovery of a Late L Dwarf: WISEP J060738.65+242953.4". The Astrophysical Journal 746 (1): 3. arXiv:1110.4351. Bibcode:2012ApJ...746....3C. doi:10.1088/0004-637X/746/1/3.
  2. ↑ "2MASS J06073908+2429574 -- Infra-Red source". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2012-12-24.
  3. 1 2 3 Gizis, John E.; Burgasser, Adam J.; Faherty, Jacqueline K.; Castro, Philip J.; Shara, Michael M. (2011). "WISEP J180026.60+013453.1: A nearby late-L Dwarf near the Galactic Plane". The Astronomical Journal 142 (5): 171. arXiv:1109.0054. Bibcode:2011AJ....142..171G. doi:10.1088/0004-6256/142/5/171.
  4. 1 2 Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, A.; 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, S. A.; 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.
  5. ↑ Gizis, John E.; Faherty, Jacqueline K.; Liu, Michael C.; Castro, Philip J.; Shaw, John D.; Vrba, Frederick J.; Harris, Hugh C.; Aller, Kimberly M.; Deacon, Niall R. (2012). "Discovery of an Unusually Red L-type Brown Dwarf". The Astronomical Journal 144 (4): 94. arXiv:1207.4012. Bibcode:2012AJ....144...94G. doi:10.1088/0004-6256/144/4/94.
This article is issued from Wikipedia - version of the Thursday, September 24, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.