ADC/CDS Standard Document for Catalog:/catalogs/2/2130/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
II/130 2-D Classification, Vilnius Photometry M56 Region (Smriglio+ 1986)
================================================================================
Automated Two-Dimensional Classification from Multicolour Photometry in the
Vilnius System
Smriglio F., Boyle R.P., Straizys V., Janulis R., Nandy K.,
MacGillivray H.T., McLachlan A., Coluzzi R., Segato C.
<Astron. Astrophys. Suppl. Ser., 66, 181-190 (1986)>
=1986A&AS...66..181S
================================================================================
ADC_Keywords: Photometry, classification; Photometry, Vilnius
Description:
This catalogue gives the seven-color photometry in the Vilnius system stars
and two-dimensional classification of 752 stars. Photographically determined
magnitudes obtained by COSMOS (MacGillivray and Stobie 1984) on the Schmidt
plates were input into software described by Smriglio et al. (1986) as a
method of automated two-dimensional stellar classification in the Vilnius
seven-color intermediate band photometric system (Straizys and Zdanavicius
1970). A region of approximately two square degrees in Lyra centered on RA
(1950) = 19 h 14.6 min, DE (1950) = 30 deg 05 arcmin in the direction of the
globular cluster M56 was studied and the two-dimensional classification of
752 stars in the magnitude range V = 11 to 15 mag was studied. The photo-
metric system, the method of reduction, the classification procedure and
errors were described by Smriglio et al. (1986). The number of stars for
which all the six color indices in the Vilnius system are available is close
to 3000, but the number of stars which have received two dimensional classi-
fication is 752. The success rate of classification appears to be high for
stars brighter than V = 15.0 mag for which photometric accuracy is better
than +-5%.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
data.dat 94 752 Data
--------------------------------------------------------------------------------
Byte-by-byte Description of file: data.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- ID Running number
7- 8 I2 h RAh Right Ascension (1950.0) hours
10- 11 I2 min RAm Right Ascension (1950.0) minutes
13- 16 F4.1 s RAs Right Ascension (1950.0) seconds
20- 21 I2 deg DEd Declination (1950.0) degrees
23- 24 I2 arcmin DEm Declination (1950.0) arcminutes
26- 27 I2 arcsec DEs Declination (1950.0) arcseconds
33- 37 F5.2 mag V V magnitude
42- 45 F4.2 mag U-P ? U-P color index
50- 53 F4.2 mag P-X P-X color index
58- 61 F4.2 mag X-Y X-Y color index
66- 69 F4.2 mag Y-Z Y-Z color index
74- 77 F4.2 mag Z-V Z-V color index
82- 85 F4.2 mag V-S ? V-S color index
91- 92 A2 --- Sp Spectral type
94 A1 --- L *Luminosity class
--------------------------------------------------------------------------------
Note on L:
d = dwarf
g = giant
c = supergiant
References:
MacGillivray H.T. and Stobie R.S. (1984) Vistas Astron., 27, 433.
Smriglio F., Boyle R.P., Straizys V., Janulis R., Mandy K., MacGillivray
H.T., McLachlan A., Coluzzi R. and Segato C. (1986) Astron. Astrophys.
Suppl. Ser., 66, 181.
Straizys V. and Zdanavicius K. (1970) Bull. Vilnius Obs., 29, 15.
================================================================================
(End) Julie Anne Watko [SSDOO/ADC] 30-MAY-1996