2003A&A...410..649S


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.25CET09:23:49

2003A&A...410..649S - Astronomy and Astrophysics, volume 410, 649-661 (2003/11-1)

2MASSI J0516288+260738.

SCHUH S.L., HANDLER G., DRECHSEL H., HAUSCHILDT P., DREIZLER S., MEDUPE R., KARL C., NAPIWOTZKI R., KIM S.-L., PARK B.-G., WOOD M.A., PAPARO M., SZEIDL B., VIRAGHALMY G., ZSUFFA D., HASHIMOTO O., KINUGASA K., TAGUCHI H., KAMBE E., LEIBOWITZ E., IBBETSON P., LIPKIN Y., NAGEL T., GOEHLER E. and PRETORIUS M.L.

Abstract (from CDS):

We report the discovery of a new eclipsing system less than one arcminute south of the pulsating DB white dwarf KUV05134+2605. The object could be identified with the point source 2MASSJ0516288+260738 published by the Two Micron All Sky Survey. We present and discuss the first light curves as well as some additional colour and spectral information. The eclipse period of the system is 1.29d, and, assuming this to be identical to the orbital period, the best light curve solution yields a mass ratio of m2/m1=0.11, a radius ratio of r2/r1≃1 and an inclination of 74°. The spectral anaylsis results in a Teff=4200K for the primary. On this basis, we suggest that the new system probably consists of a late K + Brown dwarf (which would imply a system considerably younger than ≃0.01Gyr to have r2/r1≃1), and outline possible future observations.

Abstract Copyright:

Journal keyword(s): ephemerides - stars: variables: general - stars: binaries: eclipsing - stars: low-mass, brown dwarfs - individual: stars: 2MASSJ0516288+260738

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 BD+52 913 WD* 05 05 30.6182785658 +52 49 51.920797126 10.25 11.44 11.69 11.93 12.108 DA.8 992 0
2 KUV 05134+2605 WD* 05 16 27.7873053535 +26 08 37.542963369   16.5 16.70 16.6   DB 30 0
3 V* V1236 Tau Al* 05 16 28.8120270859 +26 07 38.739474464   19.47 18.1     ~ 25 0
4 GD 71 WD* 05 52 27.6197286025 +15 53 13.228639956 11.675 12.783 13.032 13.169 13.337 DA1.5 336 0
5 V* YY Gem BY* 07 34 37.4475372002 +31 52 10.181030942 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 820 0
6 V* CU Cnc Er* 08 31 37.5740891049 +19 23 39.398696822   12.83 11.809 11.592   M5Ve 199 0
7 V* CM Dra BY* 16 34 20.3299130309 +57 09 44.365524588   14.50 12.87 10.85 9.26 M4.5V 404 0

    Equat.    Gal    SGal    Ecl

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2020.10.25-09:23:49

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