J/AJ/110/2206 BV photometry of variables in Ru 106 (Kaluzny+ 1995)
CCD Photometry of Variable Stars in the Globular Cluster Ru 106
Kaluzny J., Krzeminski W., Mazur B.
<Astron. J. 110, 2206 (1995)>
=1995AJ....110.2206K 1995AJ....110.2206K
ADC_Keywords: Stars, variable ; Photometry, CCD ; Clusters, open
Abstract:
BV photometry is presented for 12 RR Lyr variables discovered in the
presumably young galactic globular cluster Ruprecht 106. All variables
are type RRab, and their periods span a narrow range from 0.574 to
0.652 day. We report also on the discovery of three SX Phe variables
among the cluster blue stragglers. A likely background RR Lyr variable
and two foreground contact binaries were also found in the cluster
field. The reddening of Ruprecht 106 is estimated at E(B-V)=0.20 based
on the (B-V) colors exhibited by the cluster RR Lyr variables at
minimum light. Analysis of the period vs amplitude and period vs
rise-time diagrams suggests similar metallicities of Ruprecht 106 and
M3. A peak (or bump) is present in the luminosity function of the red
giant branch of Ru 106. Its position relative to the horizontal branch
is consistent with a cluster metallicity of [Fe/H]≥-1.6.
Objects:
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RA (2000) DE Designation(s)
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12 38 40 -51 09.1 Ruprecht 106 = C 1236-508 = C 1235-509
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 17 287 Log of Ru 106 observations
b-vphot 246 55 B-V photometry of variables V1-18
bphot 246 55 B photometry of variables V1-18
vphot 246 232 V photometry of variables V1-18
table14.dat 51 3550 BV photometry for stars from Ru 106 field
image.fit 2880 722 FITS format image of Ru 106 field (16 bit/pixel)
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 F9.4 d HJD HJD (-2449000) of midpoint of observation
11- 14 I4 s Texp Exposure time
17 A1 --- Filter [VB] Filter
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Byte-by-byte Description of file: vphot bphot b-vphot
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD HJD of midpoint of observation
14- 19 F6.3 mag MagV1 Magnitude for variable V1
21- 25 F5.3 mag e_MagV1 Error of magnitude
27- 32 F6.3 mag MagV2 Magnitude for variable V2
34- 38 F5.3 mag e_MagV2 Error of magnitude
40- 45 F6.3 mag MagV3 Magnitude for variable V3
47- 51 F5.3 mag e_MagV3 Error of magnitude
53- 58 F6.3 mag MagV4 Magnitude for variable V4
60- 64 F5.3 mag e_MagV4 Error of magnitude
66- 71 F6.3 mag MagV5 Magnitude for variable V5
73- 77 F5.3 mag e_MagV5 Error of magnitude
79- 84 F6.3 mag MagV6 Magnitude for variable V6
86- 90 F5.3 mag e_MagV6 Error of magnitude
92- 97 F6.3 mag MagV7 Magnitude for variable V7
99-103 F5.3 mag e_MagV7 Error of magnitude
105-110 F6.3 mag MagV8 Magnitude for variable V8
112-116 F5.3 mag e_MagV8 Error of magnitude
118-123 F6.3 mag MagV9 Magnitude for variable V9
125-129 F5.3 mag e_MagV9 Error of magnitude
131-136 F6.3 mag MagV10 Magnitude for variable V10
138-142 F5.3 mag e_MagV10 Error of magnitude
144-149 F6.3 mag MagV11 Magnitude for variable V11
151-155 F5.3 mag e_MagV11 Error of magnitude
157-162 F6.3 mag MagV12 Magnitude for variable V12
164-168 F5.3 mag e_MagV12 Error of magnitude
170-175 F6.3 mag MagV13 Magnitude for variable V13
177-181 F5.3 mag e_MagV13 Error of magnitude
183-188 F6.3 mag MagV14 Magnitude for variable V14
190-194 F5.3 mag e_MagV14 Error of magnitude
196-201 F6.3 mag MagV15 Magnitude for variable V15
203-207 F5.3 mag e_MagV15 Error of magnitude
209-214 F6.3 mag MagV16 Magnitude for variable V16
216-220 F5.3 mag e_MagV16 Error of magnitude
222-227 F6.3 mag MagV17 Magnitude for variable V17
229-233 F5.3 mag e_MagV17 Error of magnitude
235-240 F6.3 mag MagV18 Magnitude for variable V18
242-246 F5.3 mag e_MagV18 Error of magnitude
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Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- ID ID number
8- 15 F8.2 pix Xpos X coordinate
17- 24 F8.2 pix Ypos Y coordinate
26- 31 F6.3 mag Vmag V magnitude
33- 38 F6.3 mag e_Vmag Error of V magnitude
39- 44 F6.3 mag B-V B-V color
46- 51 F6.3 mag e_B-V Error of B-V
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Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 19-Feb-1996
(End) [CDS] 05-Sep-1996