SIMBAD references

2012AJ....144..141Z - Astron. J., 144, 141 (2012/November-0)

A probable hybrid γ Dor-δ Scuti variable discovered in the open cluster NGC 2126.

ZHANG X.B., DENG L.C. and LUO C.Q.

Abstract (from CDS):

We have carried out high-precision B- and V-band time-series CCD photometry to investigate the physical nature of an oscillating EA-type binary system in the intermediate-age open cluster NGC 2126. Analysis of the light variability for about 500 stars in this field has led to the discovery of three new variables, two pulsating stars and one EA-type eclipsing binary. One of the former, GSC3382-0957, a probable cluster member, is shown to have both p- and g-mode pulsations. A frequency analysis reveals two confident pulsating modes at f1= 14.835 c/d and f2= 1.812 c/d from both the B- and V-band data. In the color-magnitude diagram, the star is located at the lower edge of the δ Scuti instability strip, where the δ Sct and γ Dor stars overlap. It is suggested that this is a probable hybrid γ Dor-δ Sct star.

Abstract Copyright:

Journal keyword(s): open clusters and associations: individual: NGC 2126 - stars: individual: GSC3382-0957 - stars: oscillations - stars: variables: delta Scuti

Nomenclature: Fig. 1, Table 1: [ZDL2012] ZVN (Nos ZV1-ZV3).

CDS comments: GSC3382-0957 is a misprint for GSC3382-0937. NGC 2116 is a misprint for NGC 2126. Table 1: wrong coordinates for ZV1, read 06 02 33.07 +49 52 47.7 instead.

Simbad objects: 15

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