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WISEPC J150649.97+702736.0 (designation abbreviated to WISE 1506+7027, or WISE J1506+7027) is a brown dwarf star of spectral class T6,[2][3] located in constellation Ursa Minor.[note 1] It is one of the Sun's nearest neighbors, at a distance of 16.85 light-years.[1] Brown dwarfs closer to the Sun include Luhman 16 and WISE 0855−0714. Other brown dwarfs that may be closer to the Sun include ε Indi Ba and ε Indi Bb at 11.8 light-years and WISE 0350-5658 at 12.1+5.2
−1.3 light-years.

WISEPC J150649.97+702736.0
Observation data
Epoch J2000      Equinox J2000
Constellation Ursa Minor
Right ascension 15h 06m 52.4403s[1]
Declination 70° 27′ 25.1182″[1]
Characteristics
Spectral type T6[2][3]
Apparent magnitude (J (2MASS filter system)) 14.328±0.095[2]
Apparent magnitude (J (MKO filter system)) 13.56±0.05[2]
Apparent magnitude (H (2MASS filter system)) 14.150±0.203[2]
Apparent magnitude (H (MKO filter system)) 13.91±0.04[2]
Apparent magnitude (KS (2MASS filter system)) 14.048±0.136[2]
Astrometry
Proper motion (μ) RA: −1194.085±1.650[1] mas/yr
Dec.: 1044.300±1.520[1] mas/yr
Parallax (π)193.5 ± 0.6 mas[4]
Distance16.86 ± 0.05 ly
(5.17 ± 0.02 pc)
Other designations
WISEPC J150649.97+702736.0[2]
WISE J1506+7027[2]
WISE 1506+7027[2]
Database references
SIMBADdata
WISE 1506+7027
Location of WISE 1506+7027 in the constellation Ursa Minor

Discovery


WISE 1506+7027 was discovered in 2011 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 2011, Kirkpatrick and colleagues published a paper in The Astrophysical Journal Supplement, where they 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 1506+7027.[2][note 2]


Distance


The first trigonometric parallax of WISE 1506+7027, which was published in 2013 by Marsh et al., is 0.310″±0.042″, corresponding to a distance 3.4+0.7
−0.4 pc, or 11.1+2.3
−1.3 ly.[5] The Gaia spacecraft determined an updated parallax of 193.5 milliarcseconds leading to a distance of 16.85 light years.[1]


Space motion


WISE 1506+7027 has a large proper motion of about 1623 milliarcseconds per year.[5]


Notes


  1. The nearest known star/brown dwarf in this constellation.
  2. 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.

References


  1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. Kirkpatrick, 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.
  3. Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (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. S2CID 119279752.
  4. Kirkpatrick, J. Davy; Martin, Emily C.; Smart, Richard L.; Cayago, Alfred J.; Beichman, Charles A.; Marocco, Federico; et al. (February 2019). "Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime". The Astrophysical Journal Supplement Series. 240 (2): 69. arXiv:1812.01208. Bibcode:2019ApJS..240...19K. doi:10.3847/1538-4365/aaf6af. 19.
  5. Marsh, Kenneth A.; Wright, Edward L.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Griffith, Roger L.; Skrutskie, Michael F.; Eisenhardt, Peter R. (2013). "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T". The Astrophysical Journal. 762 (2): 119. arXiv:1211.6977. Bibcode:2013ApJ...762..119M. doi:10.1088/0004-637X/762/2/119.

На других языках

[de] WISE 1506+7027

WISEPC J150649.97+702736.0 (Bezeichnung abgekürzt WISE 1506+7027 oder WISE J1506+7027) ist ein Brauner Zwerg der Spektralklasse T6 im Sternbild Kleiner Bär. Ungefähr 17 Lichtjahre von der Erde entfernt, gehört er zu den nächsten Nachbarn der Sonne. Der Sonne noch näher benachbarte Braune Zwerge sind Luhman 16 und WISE 0855−0714. Weitere Braune Zwerge, die sich in näherer Umgebung der Sonne befinden, sind Epsilon Indi Ba und Bb und WISE 0350−5658.
- [en] WISE 1506+7027

[ru] WISE 1506+7027

WISE 1506+7027 (полн. WISEPC J150649.97+702736.0) — четвёртый ближайший к Солнцу коричневый карлик. Находится в созвездии Малая Медведица на расстоянии около 11 световых лет от Земли. Ближе него к Солнцу находятся два коричневых карлика системы Луман 16 (5,98 св. года) и одиночный коричневый карлик WISE 0855–0714 (7,2 св. года)[1], а чуть дальше находятся одиночный коричневый карлик WISE 0350-5658 (12,1 св. года) и два коричневых карлика из тройной системы ε Индейца (12 св. лет).


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