J/AJ/134/1432 Proper motions in Plaut's window (Vieira+, 2007)
Proper motions in the Galactic Bulge: Plaut's window. Vieira K., Casetti-dinescu D.I., Mendez R.A., Rich R.M., Girard T.M., Korchagin V.I., Van Altena W., Majewski S.R., Van Den Bergh S. <Astron. J., 134, 1432-1446 (2007)> =2007AJ....134.1432V
ADC_Keywords: Stars, nearby ; Proper motions ; Photometry, infrared Keywords: astrometry - catalogs - Galaxy: bulge - Galaxy: disk - stars: kinematics Abstract: A proper-motion study of a field of 20'x20' inside Plaut's low-extinction window (l,b) = (0°, -8°) has been completed. Relative proper motions and photographic BV photometry have been derived for ∼21000 stars reaching to V∼20.5mag, based on the astrometric reduction of 43 photographic plates, spanning over 21yr of epoch difference. Proper-motion errors are typically 1mas/yr, and field-dependent systematics are below 0.2mas/yr. Cross-referencing with the 2MASS catalog yielded a sample of ∼8700 stars, from which predominantly disk and bulge subsamples were selected photometrically from the JH color-magnitude diagram. The two samples exhibited different proper-motion distributions, with the disk displaying the expected reflex solar motion as a function of magnitude. Description: This investigation is based on 43 photographic plates, taken with five different telescopes: the 51cm Double Astrograph at the Yale Southern Observatory (YSO) in El Leoncito, Argentina; the 2.1m at KPNO; the du Pont 2.5m at Las Campanas; the Blanco 4m at CTIO; and the Hale 5m at Palomar Observatory. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 70 21660 Plaut's window catalog of proper motions table4.dat 70 8721 Plaut's window stars with 2MASS data
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) I/289 : UCAC2 Catalogue (Zacharias+ 2004) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 5 I5 --- [VCM2007] Plaut's identification number 7- 16 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000) (1) 18- 27 F10.6 deg DEdeg Declination in decimal degrees (J2000) (1) 29- 33 F5.2 mag Vmag The V band magnitude 35- 39 F5.2 mag B-V The (B-V) color index 41- 42 I2 --- Npl Number of plates in which the star appears 44- 50 F7.2 mas/yr pmGlon Proper motion in galactic longitude 52- 58 F7.2 mas/yr pmGlat Proper motion in galactic latitude 60- 64 F5.2 mas/yr e_pmGlon Error in pmGLON 66- 70 F5.2 mas/yr e_pmGlat Error in pmGLAT
Note (1): As obtained from a solution with UCAC2 (Cat. I/289).
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 5 I5 --- [VCM2007] Plaut's identification number 7- 23 A17 --- 2MASS The 2MASS identification (1) 25- 30 F6.3 mag Jmag The 2MASS J band magnitude 32- 36 F5.3 mag e_Jmag The error in Jmag 38- 43 F6.3 mag Hmag The 2MASS H band magnitude 45- 49 F5.3 mag e_Hmag The error in Hmag 51- 56 F6.3 mag Kmag The 2MASS K band magnitude 58- 62 F5.3 mag e_Kmag The error in Kmag 64 I1 --- Pop Population index (2) 66- 70 A5 --- Dupl Duplicate match identification (3)
Note (1): Where the 2MASS identification is based on the sexagesimal sky coordinates of the star. Note (2): Population index code as follows: 0 = Undetermined (no population was explicitly assigned to the star) 1 = Bulge RGB 2 = Disk MS Note (3): Identification of another Plaut's star that was cross-referenced to the same 2MASS star. Our frames have better resolution than 2MASS.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 31-Oct-2009
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|