J/AJ/121/935 UBV and proper motions of Palomar 13 (Siegel+, 2001)
A cluster's last stand: the death of Palomar 13.
Siegel M.H., Majewski S.R., Cudworth K.M., Takamiya M.
<Astron. J., 121, 935-950 (2001)>
=2001AJ....121..935S 2001AJ....121..935S
ADC_Keywords: Clusters, globular ; Photometry, CCD ; Photometry, UBV ;
Proper motions
Keywords: astrometry - Galaxy: kinematics and dynamics -
globular clusters: individual (Pal 13)
Abstract:
We present a proper-motion, CCD photometric study of stars in the
distant halo globular cluster Palomar 13. The absolute proper motion
of Pal 13 with respect to the background galaxies, derived from
moderate-scale photographic plates separated by a 40 year baseline, is
(pmRAcosDE, pmDE)=(2.30, 0.27)±(0.26, 0.25)mas/yr.
Description:
Our photographic collection included 19 plates ranging in epoch from
1951 to 1991.
We observed Pal 13 on UT 1991 July 19-23 and July 31-August 2 with the
Las Campanas 1m Swope telescope using the thinned 1024x1024 Tektronix
2 CCD camera.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table34.dat 102 421 Astrometry and photometry catalog
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See also:
J/A+A/419/533 : Pal 13 UBV, proper motions & radial velocities (Blecha+, 2004)
J/AJ/128/3019 : Pal 13 blue stragglers & main-sequence binaries (Clark+, 2004)
J/A+AS/121/499 : BV and rg photometry of Pal 13 (Borissova+ 1997)
Byte-by-byte Description of file: table34.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Identification number from this study
6- 7 I2 h RAh Right Ascension (J2000)
9- 10 I2 min RAm Right Ascension (J2000)
12- 16 F5.2 s RAs Right Ascension (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 27 F4.1 arcsec DEs Declination (J2000)
29- 31 I3 --- ORS ? Ortolani et al. (1985AJ.....90..473O 1985AJ.....90..473O)
identification number, Cl* Palomar 13 ORS NNN
33- 34 I2 --- B97 ? Borissova et al. (1997, Cat. J/A+AS/121/499)
identification number, CL* PALOMAR 13 BMS 6-NN
36- 41 F6.3 mag Umag ? Johnson U band CCD magnitude
43- 47 F5.3 mag e_Umag ? Uncertainty in Umag
50- 55 F6.3 mag Bmag ? Johnson B band CCD magnitude
57- 61 F5.3 mag e_Bmag ? Uncertainty in Umag
64- 69 F6.3 mag Vmag ? Johnson V band CCD magnitude
71- 75 F5.3 mag e_Vmag ? Uncertainty in Umag
77- 82 F6.2 mas/yr pmX ? Relative proper motion along X
84- 87 F4.2 mas/yr e_pmX ? Uncertainty in pmX
89- 94 F6.2 mas/yr pmY ? Relative proper motion along Y
96- 99 F4.2 mas/yr e_pmY ? Uncertainty in pmY
101-102 I2 % Prob Astrometric membership probability (1)
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Note (1): Prob = - 1 indicates galaxies, which are listed at the top of the
tables; their photometry may be less reliable than that for stars.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 15-Jul-2005