J/BaltA/20/1 Tombaugh 5 Vilnius photometry (Zdanavicius+, 2011)
CCD photometry of the open cluster Tombaugh 5 in the Vilnius system.
Zdanavicius J., Vrba F.J., Zdanavicius K., Straizys V., Boyle R.P.
<Baltic Astron., 20, 1-25 (2011)>
=2011BaltA..20....1Z 2011BaltA..20....1Z
ADC_Keywords: Clusters, open ; Photometry, Vilnius
Keywords: stars: fundamental parameters -
Galaxy: open clusters: individual (Tombaugh 5)
Abstract:
We present the results of eight-color CCD photometry of 674 stars
in the direction of the open cluster Tombaugh 5 in Camelopardalis.
The stars are observed in the Vilnius system supplemented by the
broad-band I filter; the field is of 22' diameter, the limiting
magnitude is V=17.7mag. The catalog contains the coordinates, V
magnitudes, seven color indices, two-dimensional spectral types
determined from photometric parameters, interstellar extinctions and
distances. The color-magnitude diagram plotted for 480 individually
dereddened stars is used to identify cluster members and to
determine the distance (1.74kpc) and age (200-250Myr) of the
cluster. The fain test cluster stars classified are of spectral class
G0. The cluster contains two blue stragglers of spectral classes
B2-B4, both of them seem to be visual binaries. The extinction AV
for the cluster stars is non-uniform, being spread between 2 and 3mag,
with a mean value of 2.42mag. The extinction vs. distance dependence
can be modeled by the Parenago exponential curve with two dust
concentrations in the Camelopardalis dark clouds at about 150pc and
the Cam OB1 association clouds at 0.9-1.0kpc.
Description:
The cluster area was observed in seven filters of the Vilnius
photometric system U,P,X,Y,Z,V and S, supplemented by the broad-band I
filter, in December of 1999 with a 2Kx2K CCD camera on the 1m Ritchey
telescope at the USNO Flagstaff Station (Arizona), which gives the
22' diameter field.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 99 674 Photometry, spectral and luminosity classes,
interstellar extinctions, distances and cluster
membership for stars in the Tombough 5 area
notes.dat 80 25 Individual notes
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/674] Sequential number
4 A1 --- n_Seq [*] * indicates a note in notes.dat file
6 I1 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 14 F4.1 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17- 18 I2 deg DEd Declination (J2000)
20- 21 I2 arcmin DEm Declination (J2000)
23- 24 I2 arcsec DEs Declination (J2000)
26- 30 F5.2 mag Vmag [8.8/17.8] Vilnius V magnitude
31 A1 --- u_Vmag [: ] Uncertainty flag on Vmag
33- 36 F4.2 mag U-V ?=- Vilnius U-V colour index
37 A1 --- u_U-V [: ] Uncertainty flag on U-V
39- 42 F4.2 mag P-V ?=- Vilnius P-V colour index
43 A1 --- u_P-V [: ] Uncertainty flag on P-V
45- 48 F4.2 mag X-V ?=- Vilnius X-V colour index
49 A1 --- u_X-V [: ] Uncertainty flag on X-V
51- 54 F4.2 mag Y-V ?=- Vilnius Y-V colour index
55 A1 --- u_Y-V [: ] Uncertainty flag on Y-V
57- 60 F4.2 mag Z-V ?=- Vilnius Z-V colour index
61 A1 --- u_Z-V [: ] Uncertainty flag on Z-V
63- 66 F4.2 mag V-S ?=- Vilnius V-S colour index
67 A1 --- u_V-S [: ] Uncertainty flag on V-S
69- 72 F4.2 mag V-I ?=- Vilnius V-I colour index
73 A1 --- u_V-I [: ] Uncertainty flag on V-I
75- 85 A11 --- SpType Photometric spectral type
87- 90 F4.2 mag AV [0/3.9]? Absorption in V band
91 A1 --- u_AV [: ] Uncertainty flag on AV
93- 96 I4 pc Dist [144/6640]? Photometric distance
97 A1 --- u_Dist [: ] Uncertainty flag on Dist
98- 99 A2 --- Mmb [m: ] Membership flag (m=member, m:=possible)
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/674] Sequential number
5- 80 A76 --- Note Text of the note
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Mar-2015