SIMBAD references

2018AJ....156..138T - Astron. J., 156, 138-138 (2018/September-0)

Yes, multi-periodic dwarfs in Upper Scorpius are binaries.


Abstract (from CDS):

We found that multi-periodic low-mass stars discovered by Kepler K2 in the Upper Scorpius association are close binaries with typical separations of the order of 10 au and large mass ratios. These stars were surveyed by speckle interferometry at the SOAR telescope with spatial resolution of 0.''04. Out of 129 observed targets, we resolved 70 pairs (including 16 previously known ones and three new triple systems). The distribution of projected separations of binaries with primary stars less massive than the Sun corresponds to a log-normal with median of 11.6 au and logarithmic dispersion of 0.60 dex, similar to M dwarfs in the field. Future orbits of newly discovered binaries will provide accurate measurements of masses to calibrate pre-main-sequence evolutionary tracks; a tentative orbit of one previously known binary is determined here.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: general - binaries: visual - stars: pre-main sequence

CDS comments: Misprints: EPIC 20408292 = EPIC 204608292, EPIC 20429883 = EPIC 204429883, EPIC 204506077 = EPIC 204506777.

Simbad objects: 148

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2018AJ....156..138T and select 'bookmark this link' or equivalent in the popup menu