1997A&AS..122....1K

Query : 1997A&AS..122....1K

1997A&AS..122....1K - Astron. Astrophys., Suppl. Ser., 122, 1-7 (1997/April-1)

CCD photometry of variable stars in the field of the globular cluster NGC 6397.

KALUZNY J.

Abstract (from CDS):

The 13.6x13.6arcmin2 field including the central part of the globular cluster NGC 6397 was surveyed in a search for short-period variable stars. We obtained light curves for 6 close binaries, 2 SX Phe stars and 1 RR Lyrae variable, 7 of which are new discoveries. Both identified SX Phe variables are likely members of the cluster. One of the identified eclipsing binaries is most probably a field star while for the remaining 5 binaries our data do not preclude cluster membership. A V vs. B-V color-magnitude diagram extending from the tip of the red giant branch to below the main-sequence turnoff is presented.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: individual: NGC 6397 - star: variables: other - HR diagram - blue stragglers - stars: close binaries

VizieR on-line data: <Available at CDS (J/A+AS/122/1): tab7-13 tab9-15 table5 table6 template.fit>

Nomenclature: Table 2: Cl* NGC 6397 SAW VNN (Nos V4-V11) added. Tables 5-6: Cl* NGC 6397 K NNNNN (Nos 1-17559).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 12

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Number of rows : 12
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 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
2 Cl* NGC 6397 SAW V9 EB* 17 40 02.2494360216 -53 35 45.194275680   16.98 16.34 16.07   ~ 3 0
3 V* V826 Ara RR* 17 40 16.9921093152 -53 41 03.413719500   15.2       ~ 11 0
4 Cl* NGC 6397 LOAM 11 SX* 17 40 37.525 -53 40 36.13   16.33 15.97   15.46 ~ 11 0
5 Cl* NGC 6397 SAW V8 EB* 17 40 39.2669740848 -53 38 46.931702352   16.72 16.28   15.76 ~ 13 1
6 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
7 Cl* NGC 6397 SAW V7 EB* 17 40 43.9199366001 -53 40 35.292617809   17.74 17.09 16.72   ~ 16 0
8 Cl* NGC 6397 LOAM 9 SX* 17 40 44.107 -53 40 40.43   15.75 15.40   14.88 ~ 14 0
9 Cl* NGC 6397 SAW V6 V* 17 40 53.330 -53 43 39.31           ~ 3 0
10 Cl* NGC 6397 RB V1 V* 17 40 55.9 -53 42 42           ~ 4 1
11 Cl* NGC 6397 SAW V5 EB* 17 41 05.5419926328 -53 33 35.864564148           ~ 3 0
12 Cl* NGC 6397 SAW V4 EB* 17 41 08.8253478936 -53 42 34.339594896   17.25 16.35     ~ 5 0

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