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V/68A Stellar Maser Observations (Benson+ 1990)
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A Catalog of Observations for Stellar Masers
Benson P.J., Little-Marenin I.R., Attridge J., Blais K., Randolph D.,
Woods T., Rubiera M., Keefe H.
<ApJS, 74, 911 (1990)>
=1990ApJS...74..911B
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ADC_Keywords: Masers ; Stars, masers
Description:
This catalog contains about 2958 stellar sources. For the searching of
the maser emission of the sources listed, 368 were detected in H2O,
209 in SiO, and 713 in OH. In the catalog, one can find information
about the stars including alternate names, the 1950 epoch position,
velocity (LSR), spectral type, variability type, and period, as well
as the references for both the detections and nondetections for each
of the three molecules. In this catalog, Table 1 lists all the sources
in right ascension order, Table 2 lists the references for all the
maser observations for each source, and Table 3 lists the references
in code order, i.e., in chronological order.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 254 3656 Basic stellar data
table2.dat 80 12159 Bibliography and comments
refs.dat 511 873 References
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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4- 7 I4 --- ObsNum *[1/3656]+ Number in Right Ascension order
8- 23 A16 --- Name Generally Variable name (GCVS)
(constellation in 21-23)
24- 36 A13 --- Name2 Second name
37- 49 A13 --- Name3 Third name (generally IRAS)
50- 51 I2 h RAh RA hours (1950)
52- 53 I2 min RAm RA minutes (1950)
54- 57 F4.1 s RAs ? RA seconds
58 A1 --- DE- Dec sign
59- 60 I2 deg DEd Dec degrees (1950)
61- 62 I2 arcmin DEm Dec arcminutes
63- 64 I2 arcsec DEs [0,60]? dec arcseconds
65- 70 F6.1 km/s VLSR ?=9999. LSR radial velocity;
71 A1 --- u_VLSR [*:] asterisk means heliocentric velocity
72- 86 A15 --- SpType Spectral type
87- 91 A5 --- VarType Variable type
92-101 F10.4 d Period ? Period in days
102 A1 --- u_Period Uncertainty flag (:) on Period
104 A1 --- H2O *[YN] detected in H2O?
105 A1 --- SiO *[YN] detected in SiO?
106 A1 --- OH *[YN] detected in OH?
107-254 A148 --- note Comments
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Note on ObsNum:
The number differs from the publication
Note on H2O, SiO, OH:
The field for detected H2O, SiO, or OH is blank if no observations
was published.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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4- 7 I4 --- ObsNum [1/3656]+= Number as in table1
8- 23 A16 --- Name Name as in table1
25- 27 A3 --- Mol [H2OHSi ] Molecule H2O, SiO or OH
29- 34 I6 --- RefID Reference detailed in file refs
35 A1 --- Note *[NT*?.] Result of observation
36- 80 A45 --- Comment Text of comment
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Note on Note:
N indicates that the observation was negative;
T indicates a thermal emission of SiO
* = N T
? indicates an uncertain detection
. when there is a comment
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- RefID Reference code, as in table2.dat
7- 26 A20 --- Author1 author1
27- 46 A20 --- Author2 author2
47- 66 A20 --- Author3 author3
67- 86 A20 --- Author4 author4
87-106 A20 --- Author5 author5
107-126 A20 --- Author6 author6
127-146 A20 --- Author7 author7
147-166 A20 --- Author8 author8
167-186 A20 --- Author9 author9
187-206 A20 --- Author10 author10
207-376 A170 --- Title title
377-401 A25 --- Journal journal
402-406 A5 --- Volume volume
407-411 A5 --- Page page
412-436 A25 --- Btitle book-title
437-456 A20 --- Editor1 editor1
457-476 A20 --- Editor2 editor2
477-496 A20 --- Pub publisher
497-511 A15 --- City city
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Remarks and Modifications:
For the 2958 stellar sources listed in this catalog, 1769 had been
searched for H2O emission. and it was detected in 368 (21%) of those
observed; 639 sources had been searched for SiO emission with
detections in 209 (33%); and 2253 sources had been searched for OH
emission with detections in 713 (32%). Because strong biases found in
the data the percentages should be interpreted with caution. For
detailed bias information, please consult Benson et al. (1990).
Acknowledgements:
Priscilla Benson <PBENSON@WELLESLEY.EDU>
History:
16-Mar-1992: first version at CDS
16-Aug-1995: Modifications by C.-H. Joseph Lyu [Hughes STX/NASA]
16-Oct-1997: Reformatted by F. Ochsenbein [CDS]
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(End) C.-H. Joseph Lyu [Hughes STX/NASA] Francois Ochsenbein [CDS] 16-Oct-1997