2018MNRAS.481.1897C

Query : 2018MNRAS.481.1897C

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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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Wolf 47 PM* 01 03 19.8350070578 +62 21 55.837228636   15.34 13.21 12.4   M5V 232 0
2 TYC 2291-1627-1 EB* 01 13 51.2969940264 +31 49 09.757524180   10.61 10.11     G0V+M 27 0
3 TYC 3700-1739-1 EB* 02 40 51.532464 +52 45 06.60312   12.287 11.769 11.697   ~ 6 0
4 HD 34997 * 05 20 22.9789212432 -26 34 05.085432696   8.87 8.86     A0V 17 0
5 2MASS J05221817-2507112 EB* 05 22 18.1714703592 -25 07 11.193636180   18.19   15.81 13.69 M4-5+M4-5 10 0
6 NGTS-1b Pl 05 30 51.4522649760 -36 37 50.895680268           ~ 60 0
7 2MASS J05351214-0531388 TT* 05 35 12.1462604784 -05 31 38.817487344 19.716 18.292 17.169 15.68 13.554 M5 68 0
8 Ross 47 BY* 05 42 09.2676872099 +12 29 21.604835564 14.264 13.130 11.509 10.298 8.709 M4V 304 0
9 LP 837-20 EB* 05 44 57.9330491832 -24 56 09.713268096   17.294 15.539 15.363   M4.5Ve 22 0
10 HATS-6b Pl 05 52 35.2366980288 -19 01 53.970810276           ~ 67 0
11 CD-57 1311 SB* 05 55 32.62392 -57 17 26.1312           ~ 30 0
12 HD 42581 PM* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 544 0
13 V* QY Aur SB* 07 10 01.8335758745 +38 31 46.086503300   13.26 11.52 11.12   M4.5Ve 250 0
14 2MASS J08394203+2017450 EB* 08 39 42.0339574272 +20 17 45.101021064           M5V 46 0
15 GALEX J085746.2+034255 RS* 08 57 46.1848948032 +03 42 55.352826180           DA+M 35 0
16 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
17 Wolf 359 PM* 10 56 28.9208702274 +07 00 53.003285286 16.706 15.541 13.507 11.684 9.507 dM6 775 0
18 V* CM Dra BY* 16 34 20.3302660573 +57 09 44.368918696   14.50 12.87 10.85 9.26 M4.5V 467 0
19 KOI-362 EB* 19 23 59.2554767856 +37 11 57.177016728       13.78   ~ 44 2
20 Kepler-42 PM* 19 28 52.5688740811 +44 37 08.989819665   17.8   16.06   M4V 131 1
21 Kepler-45b Pl 19 31 29.4966491088 +41 03 51.356401092           ~ 99 1
22 Kepler-469 EB* 19 49 54.2016372336 +41 06 51.428433708           ~ 109 0
23 2MASS J19530248+4040338 Er* 19 53 02.4855386472 +40 40 33.874796028     17.79   15.53 M4V 8 0

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