Astronomy:DENIS-P J1058.7−1548
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Short description: Brown dwarf star in the constellation Crater
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Crater |
| Right ascension | 10h 58m 47.870s[1] |
| Declination | −15° 48′ 17.23″[1] |
| Characteristics | |
| Spectral type | L3 |
| Apparent magnitude (J) | 14.155[1] |
| Apparent magnitude (H) | 13.226[1] |
| Apparent magnitude (K) | 12.532[1] |
| Astrometry | |
| Parallax (π) | 66.5 ± 4.4[2] mas |
| Distance | 49 ± 3 ly (15.0 ± 1.0 pc) |
| Details[3] | |
| Mass | <0.055 M☉ |
| Radius | 1.00±0.07[4] RJup |
| Temperature | 1850±150[3] K |
| Rotation | 4.1±0.2 hours[4] |
| Rotational velocity (v sin i) | 37.5±2.5[5] km/s |
| Age | <320 Myr |
| Other designations | |
DENIS J1058.7-1548, 2MASS J10584787-1548172, 2MUCD 10949 | |
| Database references | |
| SIMBAD | data |
DENIS-P J1058.7-1548 is a brown dwarf of spectral type L3, located in constellation Crater at approximately 17.3 parsecs or 56.5 light-years from Earth.[6] Its spectrum was used as a standard to define the spectral class L3 back in 1997.[7] With a surface temperature of between 1700 and 2000 K, it is cool enough for clouds to form. Variations in its brightness in visible and infrared spectra suggest it has some form of atmospheric cloud cover.[3]
See also
- Deep Near Infrared Survey of the Southern Sky
- DENIS-P J1228.2-1547
- DENIS-P J020529.0-115925
- DENIS-P J082303.1-491201 b
- DENIS-P J101807.5-285931
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E. et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues 2246: II/246. Bibcode: 2003yCat.2246....0C. http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/246.
- ↑ Faherty, Jacqueline K. (2012). "The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs". The Astrophysical Journal 752 (1): 56. doi:10.1088/0004-637X/752/1/56. Bibcode: 2012ApJ...752...56F.
- ↑ 3.0 3.1 3.2 Aren N. Heinze (12 March 2013). "Weather on Other Worlds I: Detection of Periodic Variability in the L3 Dwarf DENIS-P J1058.7-1548 with Precise Multi-Wavelength Photometry". The Astrophysical Journal 767 (2): 173. doi:10.1088/0004-637X/767/2/173. Bibcode: 2013ApJ...767..173H.
- ↑ 4.0 4.1 Vos, Johanna M.; Biller, Beth A.; Allers, Katelyn N.; Faherty, Jacqueline K.; Liu, Michael C.; Metchev, Stanimir; Eriksson, Simon; Manjavacas, Elena et al. (2020), "Spitzer Variability Properties of Low-gravity L Dwarfs", The Astronomical Journal 160: 38, doi:10.3847/1538-3881/ab9642
- ↑ The Viewing Geometry of Brown Dwarfs Influences Their Observed Colors and Variability Amplitudes
- ↑ Dahn, C. C.; Harris, Hugh C.; Vrba, Frederick J.; Guetter, Harry H.; Canzian, Blaise; Henden, Arne A.; Levine, Stephen E.; Luginbuhl, Christian B. et al. (2002). "Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs". The Astronomical Journal 124 (2): 1170–1189. doi:10.1086/341646. Bibcode: 2002AJ....124.1170D.
- ↑ Zhang (张曾华), Z. H.; Pinfield, D. J.; Gálvez-Ortiz, M. C.; Homeier, D.; Burgasser, A. J.; Lodieu, N.; Martín, E. L.; Zapatero Osorio, M. R. et al. (2018), "Primeval very low-mass stars and brown dwarfs – III. The halo transitional brown dwarfs", Monthly Notices of the Royal Astronomical Society 479: 1383–1391, doi:10.1093/mnras/sty1352
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