III/114 Spectra of Late-Type Standards, 2.0-2.5 Microns (Kleinmann+ 1986)
Spectra of Late-Type Standard Stars in the Region 2.0-2.5 Microns
Kleinmann S.G., Hall D.N.B.
<Astrophys. Journ. Suppl. 62, 501 (1986)>
=1986ApJS...62..501K 1986ApJS...62..501K
ADC_Keywords: Stars, late-type; Stars, standard; Spectrophotometry;
Spectra, infrared
Description:
This catalog contains a collection of K-band spectra for 26 stars
with near-solar abundances, ranging in spectral class from F8 to M7
and in luminosity from dwarfs to supergiants. The spectra cover the
wavelength region from 4150 to 4950 /cm and generally exhibit a signal
to noise ratio above 400. Five stars here are supergiants, 15 are
giants, and six are dwarfs. Data included: observation date, starting
wavenumber, wavenumber increment, scale factor of relative intensity,
and offset of relative intensity.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 80 26 List of stars observed
sp/* . 52 FITS files with spectrum and noise for the 26 stars
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Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Star name
12- 13 I2 h RAh Right Ascension J2000 (hours) (1)
15- 16 I2 min RAm Right Ascension J2000 (minutes) (1)
18- 21 F4.1 s RAs Right Ascension J2000 (seconds) (1)
23 A1 --- DE- Declination J2000 (sign) (1)
24- 25 I2 deg DEd Declination J2000 (degrees) (1)
27- 28 I2 arcmin DEm Declination J2000 (minutes) (1)
30- 31 I2 arcsec DEs Declination J2000 (seconds) (1)
35- 39 F5.2 mag Bmag B magnitude (1)
41- 45 F5.2 mag Vmag V magnitude (1)
47- 53 A7 --- SpType MK spectral type (1)
56- 67 A12 --- spFile Name of file with FITS spectrum
69- 80 A12 --- nFile Name of file with FITS noise spectrum
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Note (1): parameter from SIMBAD
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Remarks and Modifications:
A magnetic tape containing the atlas Spectra of Late-Type Standard
Stars in the Region 2.0-2.5 Microns was received from Dr. Susan G.
Kleinmann on April 28, 1987. The tape contained 52 files one file for
each signal and noise spectrum, in VAX/VMS SAVESET format. As
received, each spectrum consisted of three parts: (I) the first 412
logical records contained a "big information block" (BIB) consisting
of what might be termed engineering data from the Fourier transform
spectrometer. This is largely redundant information from spectrum to
spectrum and most of the records were actually unused; (2) a "small
information block" (SIB) of two records containing in- formation
pertinent to each observation, and; (3) the array of data points.
Following discussions with Dr. Kleinmann, it was mutually agreed that
the BIBs could be removed from the spectra, the SIBs modified slightly
for easier processing, and all the spectra combined into a single
file. The merging of the data simplifies the structure and is not a
hindrance to processing because each spectrum contains the same number
of records and can be read with a DO statement. The elimination of the
redundant information also decreased the size of the catalog by a
factor of 2, a definite advantage for storage requirements and
dissemination. After the above modifications were made, the data were
archived for distribution. The spectra are in the same order as in
Table I of the source reference.
Acknowledgments:
The original ADC documentation by Kang, Y.W. and Warren, W.H. Jr.
(1988) was used to create this ReadMe file.
References:
Keenan, P. C. and McNeil, R. C. 1976, An Atlas of Spectra of The Cooler
Stars (Columbus: The Ohio State University Press).
Keenan, P. C. and Pitts, R. E. 1980, Astrophys. J. Suppl. 42, 541.
(1980ApJS...42..541K 1980ApJS...42..541K)
Kleinmann, S. G. and Hall, D. N. B. 1986, Astrophys. J. Suppl. 62, 501.
(1986ApJS...62..501K 1986ApJS...62..501K)
(End) C.-H. Joseph Lyu [Hughes STX/NASA] 13-Jul-1995