III/179 Southern MK Standards 5800-10200A (Danks+ 1994)
An Atlas of Southern MK Standards from 5800 to 10,200 Angstroms Danks A.C., Dennefeld M. <Pub. Astron. Soc. Pac. 106, 382 (1994)> =1994PASP..106..382D
ADC_Keywords: Stars, standard; Spectra, red Description: Spectra are presented for MK standards in the wavelength range 580-1020nm. The stars cover the normal spectral types O to M and luminosity types I, III, and V. In addition, a small number of peculiar stars are included. The data are in 137 FITS files, in the "fits" subdirectory. The list of the 137 stars is included in the "stars.dat" file; note that the list is not identical to the stars listed in Table1 of the paper. Introduction: The projected slit width along the dispersion was about 4Å, slightly less than 2 pixels. The data are corrected for atmospheric extinction. The fluxes are relative; to convert to "absolute" the values should be multiplied by 10-13erg/cm2/s/Å (10-15W/m2/nm) but because not all of the flux was collected by the slit, these values will be about 15% low with the factor depending on the seeing. Some features in the spectrum have been introduced by the instrumentation. The most notable feature is a small emission peak near the NaI 5896Å absorption line. The data are in FITS format. The FITS header does not include the units, which are described above. The spectral types and luminosity classes given in the published paper supersede those given in the FITS headers. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 68 137 *List of stars present in the "fits" subdirectory fits/* 0 137 Subdirectory containing the 137 FITS spectra
Note on stars.dat: the file contains in addition 7 blank lines which separate the spectral types. This list, close to Table 1 of the paper, is however not identical: some stars listed in the paper are not in the file, and the file contains a few additional stars not listed in the paper.
Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD HD number (Cat. III/135) 8- 20 A13 --- Sp MK Spectral Type (from the paper) 22- 23 I2 h RAh Right Ascension J2000 (hours) (from SIMBAD) 25- 26 I2 min RAm Right Ascension J2000 (minutes) 28- 31 F4.1 s RAs Right Ascension J2000 (seconds) 33 A1 --- DE- Declination J2000 (sign) (from SIMBAD) 34- 35 I2 deg DEd Declination J2000 (degrees) (from SIMBAD) 37- 38 I2 arcmin DEm Declination J2000 (minutes) 40- 41 I2 arcsec DEs Declination J2000 (seconds) 44- 48 F5.2 mag Bmag Johnson B magnitude (from SIMBAD) 50- 54 F5.2 mag Vmag Johnson V magnitude (from SIMBAD) 57- 68 A12 --- FITSfile File name in "fits" subdirectory
History: * The spectra were received at ADC (Paul Kuin) in December 1994. * 02-Nov-2003: the file "stars.dat" made from the FITS headers wad added. The positions and magnitudes were extracted from SIMBAD, and the spectral classes were reported from the Table 1 of the paper.
(End) Francois Ochsenbein [CDS] 02-Nov-2003
|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|