AWI0005x3s
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Carina |
| Right ascension | 08h 08m 22.18s |
| Declination | −64° 43′ 57.3″ |
| Spectral type | M5.5V |
| Other designations | |
WISE J080822.18-644357.3 | |
| Database references | |
| SIMBAD | data |
AWI0005s3x is a 45+11
-7 Myr old [1] star system in the Carina constellation with a debris disk orbiting an M-type red dwarf about 212 lightyears from Earth.
On October 21, 2016, NASA's Goddard Space Flight Center announced that its citizen science project, Disk Detective, discovered a debris disk around WISE J080822.18-644357.3, a M5.5V dwarf with significant infrared excess at both 12 and 22 μm. Classified as DDOI AWI0005x3s, a BANYAN II Bayesian analysis revealed (with 93.9% probability) the star's radial velocity as 20.6 ± 1.4 km/s, associating it with Carina's ∼45 Myr old young moving group. Since most M dwarf debris disks fade in less than 30 million years, this would be the oldest M dwarf debris disk detected in a moving group, implying a change in understanding of constraint in M dwarf debris disk evolution.[2]
Reflist
- ↑ Bell, C. P. M., Mamajek, E. E., & Naylor, T. 2015, MNRAS, 454, 593
- ↑ "NASA, Citizen Scientists Discover Potential New Hunting Ground for Exoplanets," NASA, release 16-101, 21 October, 2016.