2001A&A...376..561K


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.14CET18:52:58

2001A&A...376..561K - Astronomy and Astrophysics, volume 376, 561-567 (2001/9-3)

A variable star survey of the open cluster M 37.

KISS L.L., SZABO G.M., SZILADI K., FURESZ G., SARNECZKY K. and CSAK B.

Abstract (from CDS):

A CCD photometric study of the dense galactic open cluster M 37 is presented and discussed. The majority of the analysed data are time-series measurements obtained through an RC filter. The observations were carried out on seven nights between December 1999 and February 2000, and have led to the discovery of 7 new variable stars in the field. Three of them have been unambiguously identified as W UMa-type eclipsing binaries, while two more are monoperiodic pulsating stars, most probably high-amplitude δ Scuti-type variables. The remaining two stars seem to be long-period eclipsing binaries without firm period determination. Johnson B and V frames have been used to construct a new colour-magnitude (CM) diagram of the cluster, and to find the locations of the new variable stars. The pulsating variables are most likely background objects. The CM diagram is fitted with recent isochrones yielding the main parameters of the cluster.

Abstract Copyright:

Journal keyword(s): open clusters and associations: general - open clusters and associations: individual: M 37 - stars: variables: general - stars: variables: δ Sct - stars: binaries: eclipsing

VizieR on-line data: <Available at CDS (J/A+A/376/561): table2.dat v1.dat v2.dat v3.dat v4.dat v5.dat v6.dat v7.dat>

Nomenclature: Table 2: Cl* NGC 2099 KSS VN (Nos V1-V7).

Simbad objects: 8

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Number of rows : 8

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 V* V539 Aur dS* 05 51 50.5331439551 +32 32 34.806055194   16.868 16.05   15.371 ~ 7 0
2 V* V540 Aur Al* 05 52 16.5886719852 +32 28 15.171200136   15.341 14.653     ~ 8 0
3 M 37 OpC 05 52 18 +32 33.2   6.19 5.6     ~ 327 2
4 V* V541 Aur Al* 05 52 20.40 +32 33 19.7   14.015 13.406     ~ 7 0
5 V* V542 Aur WU* 05 52 33.0181240686 +32 32 41.943873613   16.779 16.051   15.025 F2-F0 10 0
6 V* V543 Aur WU* 05 52 39.32 +32 36 30.9     17.83     ~ 5 0
7 V* V544 Aur WU* 05 52 53.2668999555 +32 33 01.500713345   16.886 16.17   14.714 ~ 8 0
8 V* V545 Aur dS* 05 53 00.6382666206 +32 24 50.799849854   16.769 16.11   14.990 ~ 8 0

    Equat.    Gal    SGal    Ecl

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2019.11.14-18:52:58

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