discov_num | notes | refcode |
JNN 84 | The companion to 2MASS J13015919+4241160 is clearly inconsistent with | |
a background contaminant, but the astrometry is also inconsistent with | ||
a simple orbital motion of B around A - for instance, the separation | ||
decreases from June 2008 to February 2009, but then increases again to | ||
June 2009. This could for instance imply that either A or B is a close | ||
unresolved binary, where the photo-center shifts on a shorter | ||
timescale than that of the AB orbit. | Jnn2012 |
refcode | metd | author | reference |
Jnn2012 | Cl j | Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S., | 2012ApJ...754...44J |
Jnn2012 | +E2 | Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T. | |
Jnn2012 | ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b) | 2014ApJS..214...17J |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
13020+4241 | JNN 84 | 2009 | 4 | 248 | 2.9 | 15.20 | 17.10 | M2 M4 | 130159.19+424116.4 | ||
13020+4241 | JNN 84 | 2015 | 5 | 248 | 2.9 | 15.20 | 17.10 | M2+M4 | N | 130159.19+424116.4 | |
13020+4241 | JNN 84 | 2016 | 8 | 248 | 2.9 | 15.20 | 17.10 | M2+M4 | N | 130159.19+424116.4 |