2010MNRAS.406.2559D

Query : 2010MNRAS.406.2559D

2010MNRAS.406.2559D - Mon. Not. R. Astron. Soc., 406, 2559-2568 (2010/August-3)

GSC2314-0530: the shortest-period eclipsing system with dMe components.

DIMITROV D.P. and KJURKCHIEVA D.P.

Abstract (from CDS):

CCD photometric observations in VRI colours and spectroscopic observations of the newly discovered eclipsing binary GSC2314-0530 (NSVS6550671) with dMe components and a very short period of P = 0.192636d are presented. The simultaneous light-curve solution and radial velocity solution allow us to determine the global parameters of GSC2314-0530: T1= 3735K; T2= 3106K; pc. The chromospheric activity of its components is revealed by strong emission in the Hα line (with mean EW = 5Å) and several observed flares. Empirical relations for mass-, mass-radius and mass-temperature are derived on the basis of the parameters of known binaries with low-mass dM components.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): stars: activity - binaries: eclipsing - binaries: spectroscopic - stars: fundamental parameters - stars: late-type - stars: low-mass

VizieR on-line data: <Available at CDS (J/MNRAS/406/2559): table3.dat>

Simbad objects: 26

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Number of rows : 26
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 Cl* NGC 104 WSB V34 EB* 00 24 49.296 -71 56 19.84           ~ 10 0
3 2MASS J01542930+0053266 EB* 01 54 29.3039596704 +00 53 26.697572880           M0+M1 19 0
4 NSVS 6507557 EB* 01 58 23.8767983544 +25 21 19.688871456   14.53 12.80     K9+M3 22 0
5 TYC 2314-1655-1 * 02 20 34.1421065808 +33 21 07.318081044   12.68 12.11     ~ 2 0
6 LSPM J0220+3320 ** 02 20 50.850720 +33 20 47.55228   14.86 13.37 12.98 10.98 M2e 52 0
7 LSPM J0220+3319 PM* 02 20 51.6121634472 +33 19 40.680117768   17.7   15.3   ~ 5 0
8 TYC 2314-1784-1 * 02 20 57.3689179128 +33 21 14.398038720   12.49 12.44 12.06   ~ 2 0
9 GSC 02314-01378 * 02 21 08.2470407184 +33 20 04.893524520     12.24     ~ 1 0
10 StKM 1-258 RS* 02 22 25.8585919224 +47 29 19.824973008   12.67 11.57     M0 27 0
11 NAME SDSS-MEB-1 SB* 03 18 23.8769202096 -01 00 18.413811144         16.91 ~ 27 0
12 StKM 1-367 ** 03 27 38.0958 +09 56 05.964   12.08 10.75 9.777   K7.5V 15 0
13 LP 54-19 SB* 03 37 14.0817987048 +69 10 49.779443244   15.5   13.991   dM4.5 68 0
14 2MASS J04463285+1901432 EB* 04 46 32.8622247312 +19 01 43.246330320   19.9 19.0     M 26 0
15 ASAS J071829-0336.7 EB* 07 18 28.7295531912 -03 36 39.149845380   15.14 13.83 13.36   ~ 14 0
16 V* YY Gem SB* 07 34 37.4474327544 +31 52 10.179641496 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 882 0
17 NSVS 7394765 EB* 08 25 51.8920686720 +24 27 04.604802912           ~ 17 0
18 StKM 1-704 ** 08 31 27.877776 +19 53 03.50628   11.52 10.38 10.04 9.125 K4 45 0
19 V* CU Cnc SB* 08 31 37.5741841080 +19 23 39.398029332   12.83 11.809 11.592   M5Ve 237 0
20 NSVS 7446320 EB* 09 16 12.2710150128 +36 15 33.524519148   14.461 13.438 12.999   M2 18 0
21 FBS 1345+796 EB* 13 45 34.8710774664 +79 23 48.290145432     13.363 13.074   M4/5 47 0
22 V* GU Boo EB* 15 21 54.8243257728 +33 56 09.067285032     13.11     M0/M1.5 99 0
23 V* CM Dra BY* 16 34 20.3302660573 +57 09 44.368918696   14.50 12.87 10.85 9.26 M4.5V 467 0
24 NAME TrES-Her0-07621 EB* 16 50 20.7262037184 +46 39 01.369643976     15.51     ~ 24 0
25 OGLE BW3 V38 EB* 18 04 44.2025491872 -30 09 05.497738668     18.300   16.3335 ~ 43 0
26 TYC 458-434-1 EB* 18 30 51.9307593364 +07 09 18.780533569   12.73 12.35 12.11   K7V 15 0

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