2018RAA....18..155D

Query : 2018RAA....18..155D

2018RAA....18..155D - Research in Astron. and astroph., 18, 155-155 (2018/December-0)

Variable stars in M37.

DAR A.A., PARIHAR P.S., SALEH P. and MALIK M.A.

Abstract (from CDS):

The CCD photometric observations of open star cluster M37 (NGC 2099) were carried out up to a limiting magnitude of V ∼ 20 in both B and V filters to search for variable stars using a 2kx4k CCD and the 1.3 m telescope at the Vainu Bapu Observatory, Kavalur. A total of 314 stars were in the first observing run, out of which 60 were identified as variables. Eight out of the identified 60 variables are classified as W UMa binary stars. For model fitting, we used PHOEBE based on the W-D code to estimate the physical parameters of these newly detected W UMa binaries that theoretically best match the observed light curves.

Abstract Copyright: ∼

Journal keyword(s): techniques: photometric - astronomical instrumentation - methods and techniques - astrometry and celestial mechanics - (stars:) binaries: eclipsing

Nomenclature: Fig. 3, Table 2: [DPS2018] IDNNN N=60 among (Nos ID002-ID303).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 1

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Number of rows : 1

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	M 37	OpC	05 52 18.6	+32 32 36						~	436	0

Query : 2018RAA....18..155D

Basic data :

M 37 -- Open Cluster
Other object types:	`OpC (2013A&A)`, `Cl* (2020A&A,C,...)`
ICRS coord. (ep=J2000) :	`05 52 18.6 +32 32 36 (Optical) [ ] E 2023A&A...674A..37G`
FK4 coord. (ep=B1950 eq=1950) :	`05 49 02.3 +32 31 56 [ ]`
Gal coord. (ep=J2000) :	`177.6451 +03.0881 [ ]`
Proper motions mas/yr :	`1.924 -5.648 [0.006 0.005 90] C` `2020A&A...633A..99C`
Radial velocity / Redshift / cz :	`V(km/s) 7.7 [0] / z(spectroscopic) 0.000026 [0.000000] / cz 7.70 [0.00] (Opt) A 2017A&A...600A.106C`
Parallaxes (mas):	`0.666 [0.002] C` `2020A&A...633A..99C`
Angular size (arcmin):	`19.3 19.3 0 (Opt) D` `2020A&A...633A..99C`

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`M 37`	`NGC 2099`	`[KPS2012] MWSC 0689`
`C 0549+325`	`[KPR2004b] 82`

References (436 between 1850 and 2026) (Total 436)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : M 37

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NGC 2099

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