WISE 0350−5658

WISE J035000.32−565830.2 (designation abbreviated to WISE 0350−5658) is a brown dwarf of spectral class Y1,[1] located in constellation Reticulum, the nearest known star/brown dwarf in this constellation. Being approximately 17.7 light-years from Earth,[2] it is one of the Sun's nearest neighbors.

WISE J035000.32−565830.2
Observation data
Epoch J2000      Equinox J2000
Constellation Reticulum
Right ascension 03h 50m 00.32s[1]
Declination −56° 58′ 30.2″[1]
Characteristics
Spectral type Y1[1]
Apparent magnitude (J (MKO-NIR filter system)) >22.8[1]
Apparent magnitude (H (MKO-NIR filter system)) >21.5[1]
Astrometry
Proper motion (μ) RA: −206±7[2] mas/yr
Dec.: −578±8[2] mas/yr
Parallax (π)184 ± 10[2] mas
Distance17.7 ± 1.0 ly
(5.4 ± 0.3 pc)
Other designations
WISE J035000.32−565830.2,[1]
WISE 0350−5658[1]
Database references
SIMBADdata

Discovery

WISE 0350−5658 was discovered in 2012 by J. Davy Kirkpatrick and colleagues from data collected by the Wide-field Infrared Survey Explorer (WISE) in the infrared at a wavelength of 40 cm (16 in), whose mission lasted from December 2009 to February 2011. In 2012 Kirkpatrick et al. published a paper in The Astrophysical Journal, where they presented the discovery of seven new brown dwarfs of spectral type Y that had been found by WISE, among which was WISE 0350−5658.[1]

Distance

WISE 0350−5658 is one of the nearest known brown dwarfs: its trigonometric parallax is 0.184 ± 0.010 arcsecond, corresponding to a direct distance of 5.4 pc (17.7 ly).[2]

See also

The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]

References
  1. Kirkpatrick, J. D.; et al. (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2). 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156.
  2. Leggett, S. K.; et al. (2017). "The Y-type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry, and Near-infrared Spectroscopy". The Astrophysical Journal. 842 (2). 118. arXiv:1704.03573. Bibcode:2017ApJ...842..118L. doi:10.3847/1538-4357/aa6fb5.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.