CDROM/APJS/V111/P445 Spectra of Normal Stars in the K Band (Wallace+ 1997) ================================================================================ Medium Resolution Spectra of Normal Stars in the K Band L. Wallace and K. Hinkle <1997, ApJS, 111, 445> =1997ApJS..111..445W ================================================================================ Abstract: An Atlas of 115 medium-resolution K-band (2.0-2.4 um) stellar spectra, spanning spectral types O-M and luminosity types I-V, is presented. K-band spectra are also presented for one N- and one J-type carbon star. A time series of spectra is presented for an S-type Mira variable. All the spectra are at a resolution of ~3000 (1.4 cm^{-1}) and have had the terrestrial absorption removed by dividing a featureless spectrum. The spectra are plotted with the major spectral features identified and are available digitally. Keywords: atlases -- infrared: stars -- stars: carbon -- stars: early type -- stars: late-type -- stars: variables: other (Mira) Description: As originally delivered by the authors, the spectra were in files named for each observed star. The files contained six (6) records of header information, followed by the spectral data. The header information was extracted from the files and uniformly formatted in the file headers.dat. The headers were then stripped from each spectral data file in order that they would have a uniform record format suitable for conversion to FITS format. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- headers.txt 119 127 Header information for each spectral data file *.dat 44 1601 Spectral data, e.g. hr21.dat is for HR 21 -------------------------------------------------------------------------------- Byte-by-byte Description of file: headers.txt -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1-12 A12 --- File File name 13 1X --- --- Blank 14-21 A8 --- Name Star name 22 1X --- --- Blank 23-32 A10 --- Other Alternate star name 33 1X --- --- Blank 34-43 A10 --- Sp Spectral type 44 1X --- --- Blank 45-119 A75 --- Notes Notes, date & FTS scan nos., ref. star, and other details such as water vapor correction -------------------------------------------------------------------------------- Byte-by-byte Description of file: *.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 F8.2 cm-1 Freq *Frequency scale 9-20 F12.4 --- Filt_Sum *Filtered sum 21-32 F12.4 --- Filt_Diff *Filtered difference 33-44 F12.4 --- Unfilt_Sum *Unfiltered sum -------------------------------------------------------------------------------- Notes for file: *.dat -------------------------------------------------------------------------------- Freq: The frequency scale where all stars have been interpolated onto a scale from 4150.0 to 4950.0 cm^-1 at intervals of 0.5 cm^-1. Filt_Sum: The fully processed version of the spectrum described in section 3 of the printed paper. Filt_Diff: The fully processed difference of the forward and backward scans, which gives an objective measure of the S/N in the processed spectrum. Unfilt_Sum: A version of the spectrum which is processed but not filtered. Specifically, the notch filter designed to remove the 3.4 cm^-1/cycle ringing and the apodizing filter were not applied. This version is included because for some purposes less filtering can clarify some questions. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 25-Jun-97