1999AJ....117..286W

Query : 1999AJ....117..286W

1999AJ....117..286W - Astron. J., 117, 286-302 (1999/January-0)

Two-color CCD photometry of variable stars in NGC 7006.

WEHLAU A., SLAWSON R.W. and NEMEC J.M.

Abstract (from CDS):

B and V CCD photometry from 1984 through 1994 is presented for 50 RR Lyrae stars and two red variable stars in the globular cluster NGC 7006. New determinations of pulsation periods and period change rates are given and used to plot B light curves. The new photometry is combined with previously published photometry obtained from photographic plates taken in the 1930s, the 1950s and 1984 and used to derive O-C diagrams and new period change rates. V light curves based on the CCD data are also displayed, and colors derived from mean values of B and V are given. Period-amplitude diagrams and the color-magnitude diagram for the variables are shown. The dereddened blue and red edges to the instability strip in the cluster are found to be at (B-V)₀ = 0.14 and 0.38. The period change rates have been revised from those given in an earlier paper and the new median period change rate is found to be +0.03, close to that predicted by the Yale evolutionary models.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Globular Clusters: Individual: NGC Number: NGC 7006 - Stars: Variables: RR Lyrae Variable

VizieR on-line data: <Available at CDS (J/AJ/117/286): table2.dat table3.dat>

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	NGC 7006	GlC	21 01 29.465	+16 11 16.49			10.46			~	562	0

Query : 1999AJ....117..286W

Basic data :

NGC 7006 -- Globular Cluster

GlC (2013A&A,GCl), Cl* (C,[KPS2012]), * (CSI,GCRV), G (2MASX)

21 01 29.465 +16 11 16.49 (Infrared) [ ] C 2006AJ....131.1163S

20 59 09.295 +15 59 26.86 [ ]

063.770166 -19.406940 [ ]

-0.128 -0.633 [0.027 0.027 90] C 2021MNRAS.505.5978V

V(km/s) -383.2 [0.6] / z(spectroscopic) -0.001277 [0.000002] / cz -382.96 [0.60] (Opt) A 2018MNRAS.478.1520B

0.035 [0.015] C 2021MNRAS.505.5978V

1.107 1.018 85 (NIR) C 2006AJ....131.1163S

V 10.46 [~] D 2012AJ....144..126D

J 9.555 [0.014] C 2006AJ....131.1163S

H 9.023 [0.022] C 2006AJ....131.1163S

K 9.003 [0.028] C 2006AJ....131.1163S

g (AB) 11.357 [0.030] C 2014MNRAS.437.1725V

r (AB) 10.817 [0.012] C 2014MNRAS.437.1725V

i (AB) 10.554 [0.012] C 2014MNRAS.437.1725V

z (AB) 10.423 [0.045] C 2014MNRAS.437.1725V

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`NGC 7006`	`CSI+16-20591`	`GCRV 13202`	`[KPS2012] MWSC 3446`
`C 2059+160`	`GCl 119`	`2MASX J21012946+1611164`

References (562 between 1850 and 2026) (Total 562)
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 : NGC 7006

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NGC 7006 2MASX J21012946+1611164

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