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III/153     An Atlas of Near Infrared Stellar Spectra    (Arnaud+ 1989)

An Atlas of Stellar Spectra between 2.00 and 2.45 micrometers Arnaud K.A., Gilmore G., Collier C.A. <Mon. Not. Roy. Astron. Soc. 237, 495, (1989)> =1989MNRAS.237..495A
ADC_Keywords: Spectra, infrared; Spectrophotometry Abstract: The atlas represents a collection of spectra in the wavelength range 2.00 to 2.45 micrometers having a resolution of approximately 0.02 micrometers. The sample of 73 stars includes a supergiant, giants, dwarfs, and subdwarfs with a chemical abundance range of about -2 to +0.5 dex. Introduction: An Atlas of Stellar Spectra between 2.00 and 2.45 micrometers contains digital spectra for a sample of 73 stars of various temperature classes of F and later, most luminosity classifications, and a range of abundances. A majority of the spectra were obtained with the UKIRT, while some observations were collected with the Mount Hopkins MMT. The UKIRT provided a 59-point spectrum from 2.004 to 2.451 micrometers and the MMT gave a 30-point spectrum from 2.001 to 2.431 micrometers. This documentation should be used only to supplement the information contained in the source reference, which should be consulted for details regarding the impetus for the work, the selection of standard stars, the observational procedures, and the technique of data reduction. The source reference also contains a full listing of the observed stars and a table of flux standards used. Graphical presentations of all spectra are also given in the body of the paper, while the digital spectra are listed on a microfiche card accompanying the journal issue. (Note: The labels on the two microfiche cards in the issue are reversed.) In any case, the published paper should be consulted by all users of the machine-readable data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file spectra.dat 80 83 Summary of the spectra (from Table 1) sp/* 20 83 Actual spectra
Byte-by-byte Description of file: spectra.dat
Bytes Format Units Label Explanations
1- 3 A3 --- Spec Spectrum ID in "sp" subdirectory (1) 5- 14 A10 --- Star Star designation (2) 18- 25 A8 --- SpType MK Spectral classification 28- 31 F4.1 [Sun] [Fe/H] ? Metallicity of star 34 I1 --- r_[Fe/H] ? Reference of Metallicity (3) 37- 45 A9 --- Obs Observation instrument 47- 80 A34 --- Notes Remarks
Note (1): The file containing the actual spectrum consists in a "s" followed by the spectrum ID, and the ".dat" suffix. Note (2): "BMB" stands for the list of stars in Baade's Window by Blanco+McCarthy+Blanco (1984AJ.....89..636B), named also "BW" in the publication. Note (3): there references are numbered as follows: 2 = Cayrel de Strobel et al., 1985A&AS...59..145C 6 = Norris, 1986ApJS...61..667N 7 = Persson et al., 1977AJ.....82..729P
Byte-by-byte Description of file: sp/*
Bytes Format Units Label Explanations
1- 5 F5.3 um lambda Wavelength in micrometers 8- 12 F5.3 --- Flux Flux normalized to unity at λ=2.15um 15- 20 F6.4 --- e_Flux Fractional error of flux
History: * November 1989: The machine-readable version of An Atlas of Stellar Spectra between 2.00 and 2.45 micrometers was received on 3 November 1989 via SPAN network transfer from Dr. K. A. Arnaud of the Laboratory of High Energy Astrophysics at the NASA Goddard Space Flight Center. Minor changes were made to some of the header records in order to make the spacing uniform; otherwise, the archived and distributed data are exactly as received. * 16-Mar-1995: Catalog standardized (Nancy G. Roman, SSDOO/ADC) * 16-Mar-2005: individual spectra were assigned individual files in the "sp" subdirectory, and the "spectra.dat" file was added. Acknowledgments: Appreciation is expressed to Dr. Keith Arnaud for supplying the digital spectra and for reviewing a draft copy of the present document before it was finalized for distribution with the machine-readable atlas. This document has been adapted from the version prepared by Wayne Warren.
(End) Nancy G. Roman [SSDOO/ADC] 16-Mar-1995
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

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