WISEPA J174124.26+255319.5
Coordinates: 
17h 41m 24.22s, +25° 53′ 18.96″
| Observation data Epoch MJD 55451.80[1]:{{{3}}} Equinox J2000[1]:{{{3}}} |
|
|---|---|
| Constellation | Hercules |
| Right ascension | 17h 41m 24.22s[1]:{{{3}}} |
| Declination | 25° 53′ 18.96″[1]:{{{3}}} |
| Characteristics | |
| Spectral type | T9[1]:{{{3}}} |
| Apparent magnitude (J (2MASS filter system)) | 16.53±0.02[1]:{{{3}}} |
| Apparent magnitude (H (2MASS filter system)) | 16.63±0.03[1]:{{{3}}} |
| Apparent magnitude (KS (2MASS filter system)) | 16.89±0.20[1]:{{{3}}} |
| Astrometry | |
| Proper motion (μ) | RA: −495±11[2]:{{{3}}} mas/yr Dec.: −1472±13[2]:{{{3}}} mas/yr |
| Parallax (π) | 180 ± 15[3]:{{{3}}} mas |
| Distance | 18 ± 2 ly (5.6 ± 0.5 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
WISEPA J174124.26+255319.5 (designation is abbreviated to WISE 1741+2553) is a brown dwarf of spectral class T9,[1]:{{{3}}}[5]:{{{3}}} located in constellation Hercules at approximately 18 light-years from Earth.[3]:{{{3}}}
Contents
History of observations
Discovery
WISE 1741+2553 was discovered in 2011 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. WISE 1741+2553 has three discovery papers: Scholz et al. (2011), Gelino et al. (2011) and Kirkpatrick et al. (2011).[4]:{{{3}}}[6]:{{{3}}}[1]:{{{3}}}
- Scholz et al. discovered two late T-type brown dwarfs, including WISE 1741+2553, using preliminary data release from WISE and follow-up near-infrared spectroscopy with LUCIFER1 near-infrared camera/spectrograph at the Large Binocular Telescope (LBT).
- Gelino et al. examined for binarity nine brown dwarfs using Laser Guide Star Adaptive Optics system (LGS-AO) on Keck II telescope on Mauna Kea; seven of these nine brown dwarfs were also newfound, including WISE 1741+2553. These observations had indicated that two of these nine brown dwarfs are binary, but the other seven, including WISE 1741+2553, are single brown dwarfs.
- Kirkpatrick et al. 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 1741+2553.[1]:{{{3}}}[~ 1]
Distance
Currently the most accurate distance estimate of WISE 1741+2553 is a trigonometric parallax, measured using Spitzer Space Telescope and published in 2013 by Trent Dupuy and Adam Kraus: 0.180±0.015 arcsec, corresponding to a distance 5.6+0.5
−0.4 pc, or 18.1+1.6
−1.4 ly.[3]:{{{3}}}
Space motion
WISE 1741+2553 has proper motion of about 1553 milliarcseconds per year.[2]:{{{3}}}
See also
Another object, discovered by Scholz et al. (2011):[4]:{{{3}}}
- WISE 0254+0223 (T8)
The other eight objects, checked for binarity by Gelino et al. (2011) on Keck II:[6]:{{{3}}}
- binarity found:
- WISE 0458+6434 (T8.5 + T9.5, component A discovered before by Mainzer et al. (2011)[7]:{{{3}}})
- WISE 1841+7000 (T5 + T5, newfound)
- binarity not found:
- WISE 0750+2725 (T8.5, newfound[~ 2])
- WISE 1322-2340 (T8, newfound)
- WISE 1614+1739 (T9, newfound)
- WISE 1617+1807 (T8, discovered before by Burgasser et al. (2011)[8]:{{{3}}})
- WISE 1627+3255 (T6, newfound)
- WISE 1653+4444 (T8, newfound)
- List of nearest stars
- WISE 1541-2250 — Y0.5 object (44 light-years)
- UGPS 0722−05 — similar T9 object (13 light-years)
Notes
- ↑ 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.
- ↑ Presented in Gelino et al. (2011), but this is not mentioned in Kirkpatrick et al. (2011) and Kirkpatrick et al. (2012) — according these two articles, the only discovery paper of WISE 0750+2725 is Kirkpatrick et al. (2011).
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- Lua error in package.lua at line 80: module 'strict' not found.
