J/ApJ/663/277 BVI of NGC 5466 red giants and blue stragglers (Fekadu+, 2007)
Photometry of the globular cluster NGC 5466: red giants and blue stragglers.
Fekadu N., Sandquist E.L., Bolte M.
<Astrophys. J., 663, 277-295 (2007)>
=2007ApJ...663..277F 2007ApJ...663..277F
ADC_Keywords: Clusters, globular ; Stars, giant ; Stars, blue ;
Photometry, UBVRI
Keywords: globular clusters: individual (NGC 5466) - stars: evolution -
stars: luminosity function, mass function
Abstract:
We present wide-field BVI photometry for about 11500 stars in the
low-metallicity cluster NGC 5466. We have detected the red giant
branch bump for the first time, although it is at least 0.2mag
fainter than expected relative to the turnoff. The number of red
giants (relative to main-sequence turnoff stars) is in excellent
agreement with stellar models from the Yonsei-Yale and Teramo groups,
and slightly high compared to Victoria-Regina models. This adds to
evidence that an abnormally large ratio of red giant to main-sequence
stars is not correlated with cluster metallicity.
Description:
The data used in this study were obtained with the Kitt Peak National
Observatory (KPNO) 0.9m telescope (0.68"/pix) on the nights of UT
dates 1995 May 4, 5, and 9.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 112 552 Selected star populations in NGC 5466
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See also:
J/MNRAS/384/1444 : V and r light curves of NGC 5466 RR Lyrae (Arellano+, 2008)
Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Type Population type (1)
5- 7 A3 --- ID Identification number, within the Type (1)
9- 15 F7.2 arcsec dRA Difference in Right Ascension (2)
17- 23 F7.2 arcsec dDE Difference in Declination (2)
25- 31 F7.4 mag Bmag ? B band magnitude
33- 38 F6.4 mag e_Bmag ? 1σ error in Bmag
40- 46 F7.4 mag Vmag ? V band magnitude
48- 53 F6.4 mag e_Vmag ? 1σ error in Vmag
55- 61 F7.4 mag Imag ? I band magnitude
63- 68 F6.4 mag e_Imag ? 1σ error in Imag
70- 74 I5 --- OID ? Alternate identification
76 A1 --- Ref [KCJ] Photometry reference (3)
78-112 A35 --- Note Additional references and notes
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Note (1): Population type are:
BS = Blue Stragglers: No 1 to 97, Cl* NGC 5466 NH NN in Simbad
RGB = bright RGB Stars: No 1 to 100, Cl* NGC 5466 FSBRGB NNN in Simbad
HB = HB stars: No 1 to 76, Cl* NGC 5466 FSBHB NN in Simbad and
V1 to V23, Cl* NGC 5466 FSBHB VNN in Simbad.
Note (2): Relative to RA = 14:05:27.4, DE = +28:32:04.
Note (3): Photometry reference as follows:
K = KPNO data from this paper
C = CFHT data from this paper
J = Jeon et al. (2004AJ....128..287J 2004AJ....128..287J)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 09-Aug-2009