SIMBAD references

2018MNRAS.481.1897C - Mon. Not. R. Astron. Soc., 481, 1897-1907 (2018/December-1)

A low-mass eclipsing binary within the fully convective zone from the Next Generation Transit Survey.

CASEWELL S.L., RAYNARD L., WATSON C.A., GILLEN E., DE MOOIJ E., BAYLISS D., BOUCHY F., THOMPSON A., JACKMAN J.A.G., BURLEIGH M.R., CHAUSHEV A., BELARDI C., LOUDEN T., GOAD M.R., NIELSEN L.D., POPPENHAEGER K., EIGMULLER P., GUNTHER M.N., JENKINS J.S., McCORMAC J., MOYANO M., QUELOZ D., SMITH A.M.S., WEST R.G. and WHEATLEY P.J.

Abstract (from CDS):

We have discovered a new, near-equal-mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of three field-age (>1 Gyr), late M dwarf eclipsing binaries known, and has a period of 1.74774 d, similar to that of CM Dra and KOI126. Modelling of the eclipses and radial velocities shows that the component masses are Mpri =0.17391 +0.00153–0.00099 M☉, Msec = 0.17418 +0.00193–0.00059 M☉; and the radii are Rpri = 0.2045 +0.0038–0.0058 R☉, Rsec= 0.2168 +0.0047–0.0048 R☉. The effective temperatures are T_ pri_=2995 +85–105 K and T_ sec_=2997 +66–101K, consistent with M5 dwarfs and broadly consistent with main-sequence models. This pair represents a valuable addition that can be used to constrain the mass-radius relationship at the low-mass end of the stellar sequence.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): binaries: eclipsing

Simbad objects: 23

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