AWI0005x3s

AWI0005x3s
Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 08h 08m 22.18s
Declination −64° 43′ 57.3″
Spectral typeM5.5V
Other designations
WISE J080822.18-644357.3
Database references
SIMBADdata

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]

References

  1. ↑ Bell, C. P. M., Mamajek, E. E., & Naylor, T. 2015, MNRAS, 454, 593
  2. ↑ "NASA, Citizen Scientists Discover Potential New Hunting Ground for Exoplanets," NASA, release 16-101, 21 October, 2016.


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