Teide 1 is a brown dwarf located around 430 light years away in the Pleiades. It was one of the first two brown dwarfs confirmed. Its surface temperature is 2,600 ± 150 K,[6] which is about half that of the Sun. Its luminosity is 0.08–0.05% of that of the Sun.[7] It is estimated to have about the same age as Pleiades, giving a plausible range from 70 to 140 Myr.[7]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 47m 17.915s[1] |
| Declination | 24° 22′ 31.75″[1] |
| Characteristics | |
| Spectral type | M8.8[2] |
| Apparent magnitude (J) | 16.215±0.010[3] |
| Apparent magnitude (H) | 15.591±0.009[3] |
| Apparent magnitude (K) | 15.096±0.011[3] |
| Astrometry | |
| Proper motion (μ) | RA: 21.681±2.695 mas/yr[1] Dec.: −43.254±1.485 mas/yr[1] |
| Parallax (π) | 7.5777 ± 1.7015 mas[1] |
| Distance | approx. 430 ly (approx. 130 pc) |
| Details[2][a] | |
| Mass | 52 15 −10 MJup |
| Radius | 1.311 0.12 −0.075 RJup |
| Luminosity | 0.0006[4] L☉ |
| Surface gravity (log g) | 4.871 0.037 −0.043 cgs |
| Temperature | 2584±100[4] K |
| Age | 112±5 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Discovery
editTeide 1 was detected by Rafael Rebolo López, María R. Zapatero-Osorio and Eduardo L. Martín in optical images obtained in January 1994 with the 0.80 meter diameter telescope (IAC-80) from the Instituto de Astrofísica de Canarias, located at the Teide Observatory on the island of Tenerife. Its cold nature was confirmed in December 1994 with the William Herschel telescope (WHT) of the Roque de los Muchachos observatory in La Palma. On May 22, 1995, the article reporting their discovery was submitted to the journal Nature, which published it on September 14, 1995.[8] Meanwhile, a similar object, Calar 3, was discovered. The brown dwarf nature of Teide 1 and Calar 3 was fully confirmed in 1996 following spectroscopic observations with the 10-meter diameter telescope of the W. M. Keck observatory of Mauna Kea on the island of Hawaii.[7]
Gallery
edit
Notes
edit- ^ Parameters taken from Table 6. The parameters in other tables derived from atmospheric modeling are unreliable, as discussed in the text.
References
edit- ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b Hurt, Spencer A.; Liu, Michael C.; et al. (January 2024). "Uniform Forward-modeling Analysis of Ultracool Dwarfs. III. Late-M and L Dwarfs in Young Moving Groups, the Pleiades, and the Hyades". The Astrophysical Journal. 961 (1): 121. arXiv:2311.04268. Bibcode:2024ApJ...961..121H. doi:10.3847/1538-4357/ad0b12.
- ^ a b c Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (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.
- ^ a b Bihain, G.; Rebolo, R.; et al. (September 2010). "Near-infrared low-resolution spectroscopy of Pleiades L-type brown dwarfs". Astronomy and Astrophysics. 519: A93. arXiv:1005.3249. Bibcode:2010A&A...519A..93B. doi:10.1051/0004-6361/200913676.
- ^ "2MASS J03471792 2422317". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ Leech, K.; Altieri, B.; Metcalfe, L.; Martin, E. L.; Rebolo, R.; Zapatero Osorio, M. (2000). "Mid-IR Observations of the Pleiades Brown Dwarfs Teide 1 & Calar 3" (PDF). From Giant Planets to Cool Stars. ASP Conference Series. Vol. 212. pp. 82–87. Bibcode:2000ASPC..212...82L. ISBN 1-58381-041-2.
- ^ a b c R. Rebolo; E. L. Martín; G. Basri; G. W. Marcy; M. R. Zapatero-Osorio (1996). "Brown Dwarfs in the Pleiades Cluster Confirmed by the Lithium Test". The Astrophysical Journal. 469: 53–56. arXiv:astro-ph/9607002. Bibcode:1996ApJ...469L..53R. doi:10.1086/310263. S2CID 119485127.
- ^ Rebolo, R.; Zapatero Osorio, M. R.; Martín, E. L. (September 1995). "Discovery of a brown dwarf in the Pleiades star cluster". Nature. 377 (6545): 129–131. Bibcode:1995Natur.377..129R. doi:10.1038/377129a0.
External links
edit- Walter Myers (1995). "Teide 1". Archived from the original on 2009-05-02.
- http://www.astro-tom.com/technical_data/magnitude_scale.htm