Astronomy:WISEPA J174124.26+255319.5
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Short description: Star in the constellation Hercules
Coordinates: 
17h 41m 24.22s, +25° 53′ 18.96″
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Hercules |
| Right ascension | 17h 41m 24.22s[1] |
| Declination | 25° 53′ 18.96″[1] |
| Characteristics | |
| Spectral type | T9[1] |
| Apparent magnitude (J (2MASS filter system)) | 16.53±0.02[1] |
| Apparent magnitude (H (2MASS filter system)) | 16.63±0.03[1] |
| Apparent magnitude (KS (2MASS filter system)) | 16.89±0.20[1] |
| Astrometry | |
| Proper motion (μ) | RA: −495±11[2] mas/yr Dec.: −1472±13[2] mas/yr |
| Parallax (π) | 214.3 ± 2.8[3] mas |
| Distance | 15.2 ± 0.2 ly (4.67 ± 0.06 pc) |
| Details | |
| Surface gravity (log g) | 4.00[4] cgs |
| Temperature | 748±1[4] K |
| Metallicity | 0 dex[4] |
| Rotational velocity (v sin i) | 21+16 −14[4] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
  WISE 1741+2553 Location of WISE 1741+2553 in the constellation Hercules | |
WISEPA J174124.26+255319.5 (designation is abbreviated to WISE 1741+2553) is a brown dwarf of spectral class T9,[1][7] located in constellation Hercules at approximately 15.2 light-years from Earth.[3]
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).[6][8][1]
- 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][~ 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.[9]
Space motion
WISE 1741+2553 has proper motion of about 1553 milliarcseconds per year.[2]
See also
Another object, discovered by Scholz et al. (2011):[6]
- WISE 0254+0223 (T8)
The other eight objects, checked for binarity by Gelino et al. (2011) on Keck II:[8]
- binarity found:
- WISE 0458+6434 (T8.5 + T9.5, component A discovered before by Mainzer et al. (2011)[10])
- WISE 1841+7000 (T5 + T5, newfound)
- binarity not found:
- 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 to 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 Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amy K. et al. (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement 197 (2): 19. doi:10.1088/0067-0049/197/2/19. Bibcode: 2011ApJS..197...19K.
- ↑ 2.0 2.1 2.2 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. doi:10.1088/0004-637X/762/2/119. Bibcode: 2013ApJ...762..119M.
- ↑ 3.0 3.1 Kirkpatrick, J. Davy; Martin, Emily C.; Smart, Richard L.; Cayago, Alfred J.; Beichman, Charles A.; Marocco, Federico; Gelino, Christopher R.; Faherty, Jacqueline K. et al. (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 240 (19): 19. doi:10.3847/1538-4365/aaf6af. Bibcode: 2019ApJS..240...19K.
- ↑ 4.0 4.1 4.2 4.3 Zhang, Zhoujian; Liu, Michael C.; Marley, Mark S.; Line, Michael R.; Best, William M. J. (2021). "Uniform Forward-modeling Analysis of Ultracool Dwarfs. II. Atmospheric Properties of 55 Late-T Dwarfs". The Astrophysical Journal 921 (95): 95. doi:10.3847/1538-4357/ac0af7. Bibcode: 2021ApJ...921...95Z.
- ↑ Golovin, Alex; Reffert, Sabine; Just, Andreas; Jordan, Stefan; Vani, Akash; Jahreiß, Hartmut (November 2022). "The Fifth Catalogue of Nearby Stars (CNS5)". Astronomy & Astrophysics 670: A19. doi:10.1051/0004-6361/202244250. Bibcode: 2023A&A...670A..19G. Catalogue can be accessed here.
- ↑ 6.0 6.1 6.2 Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data". Astronomy & Astrophysics 532: L5. doi:10.1051/0004-6361/201117297. Bibcode: 2011A&A...532L...5S.
- ↑ Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L. 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. doi:10.1088/0004-637X/753/2/156. Bibcode: 2012ApJ...753..156K.
- ↑ 8.0 8.1 Gelino, Christopher R.; Kirkpatrick, J. Davy; Cushing, Michael C.; Eisenhardt, Peter R.; Griffith, Roger L.; Mainzer, Amanda (Amy) K.; Marsh, Kenneth A.; Skrutskie, Michael F. et al. (2011). "WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System". The Astronomical Journal 142 (2): 57. doi:10.1088/0004-6256/142/2/57. Bibcode: 2011AJ....142...57G.
- ↑ Dupuy, Trent J.; Kraus, Adam L. (2013). "Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects". Science 341 (6153): 1492–5. doi:10.1126/science.1241917. PMID 24009359. Bibcode: 2013Sci...341.1492D.
- ↑ Mainzer, Amy K.; Cushing, Michael C.; Skrutskie, Michael F.; Gelino, Christopher R.; Kirkpatrick, J. Davy; Jarrett, Thomas H.; Masci, Frank; Marley, Mark S. et al. (2011). "The First Ultra-cool Brown Dwarf Discovered by the Wide-field Infrared Survey Explorer". The Astrophysical Journal 726 (1): 30. doi:10.1088/0004-637X/726/1/30. Bibcode: 2011ApJ...726...30M.
- ↑ Burgasser, Adam J.; Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Griffith, Roger L.; Looper, Dagny L.; Tinney, Christopher; Simcoe, Robert A. et al. (2011). "Fire Spectroscopy of Five Late-type T Dwarfs Discovered with the Wide-field Infrared Survey Explorer". The Astrophysical Journal 735 (2): 116. doi:10.1088/0004-637X/735/2/116. Bibcode: 2011ApJ...735..116B.
- Smart, R. L.; Tinney, C. G.; Bucciarelli, B.; Marocco, F.; Abbas, U.; Andrei, A.; Bernardi, G.; Burningham, B. et al. (2013). "NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results". Monthly Notices of the Royal Astronomical Society 433 (3): 2054–2063. doi:10.1093/mnras/stt876. Bibcode: 2013MNRAS.433.2054S.
External links
- Two new nearby brown dwarfs found (Phil Plait August 9, 2011)
- Solstation.com (New Objects within 20 light-years)
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