Astronomical Data Center
ADC/CDS Standard Document for Catalog:
/catalogs/8/8012/
The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:
VIII/12 Orion A Emission-Line Surveys (Jewell+ 1989)
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Orion A Emission-Line Surveys from 200.7-202.3, 203.7-205.3, and 330.5-360.1 GHz
Jewell P.R., Hollis J.M., Lovas F.J., Snyder L.E.
<Astrophys. Journ. Suppl. 70, 833 (1989)>
=1989ApJS...70..833J
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ADC_Keywords: Radio sources ; Surveys
Description:
This catalog comprised surveys of the Orion A molecular emission lines
from 200.7-202.3, 203.7-205.3, and 330.5-360.1 GHz. These surveys were
done by using the 12 m radio telescope of the National Radio Astronomy
Observatory (NRAO). For the 870 microns (um) atmospheric window, about
160 distinct spectral features composed of nearly 180 lines were
detected. For the other two bands 42 distinct, new spectral lines were
detected. The new interstellar lines in the survey bands were
tabulated in FITS format. This new data base would be a useful
resource for further analyses of abundances and excitation of known
Orion A species and for determining unidentified lines for use in
molecule identification. The single-dish FITS format in FITS table
extension was adopted to create this catalog. The data were tabulated
in the order of Figures 1-39, including both the unshifted and shifted
spectra in each figure (Jewell et al., 1989). Single Dish header
parameters were represented in the table's header, and the data
comprised the actual table in ASCII. Various FITS Tables keywords were
given in great detail for describing the format of the table and how a
computer program could read it.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
figs.fit 2880 376 Orion A Survey data in FITS format
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Remarks:
The Orion A survey data were received by the Astronomical Data Center
(ADC), NASA Goddard Space Flight Center, from Dr. Phil Jewell on
September 10, 1990. The data images of the spectra were written in
the exact order that the figures appear in the journal paper.
The lower sideband (LSB) frequencies (in MHz) of the 75 tables were
summarized in the following list (table number vs. LSB):
No. LSB(MHz) No. LSB(MHz) No. LSB(MHz)
1 201003 26 339810 51 351810
2 201515 27 339800 52 353300
3 202027 28 343300 53 353310
4 333800 29 343310 54 353800
5 333810 30 343800 55 353880
6 334300 31 343810 56 354300
7 334310 32 344300 57 354310
8 334800 33 344310 58 355300
9 334810 34 344800 59 355310
10 335300 35 344810 60 355800
11 335310 36 345300 61 355810
12 335800 37 345310 62 356300
13 335810 38 345796 63 356310
14 336300 39 345806 64 357300
15 336310 40 349300 65 357290
16 337300 41 349310 66 357800
17 337310 42 349800 67 357810
18 337800 43 349810 68 358300
19 337810 44 350300 69 358310
20 338300 45 350310 70 358800
21 338310 46 350800 71 358810
22 338800 47 350810 72 359300
23 338810 48 351300 73 359310
24 339300 49 351310 74 359800
25 339310 50 351800 75 359810
Note the 75 FITS tables correspond to the Figures 1-39 of Jewell et al.
(1989).
Acknowledgments:
The original journal paper (Jewell et al. 1989), CDS Intro file, and the
memo of the Single Dish FITS tape by Betty Stobie and Lorrie Morgan (1986)
were used to create this ReadMe file.
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(End) C.-H. Joseph Lyu [Hughes STX/NASA] 22-May-1996
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