II/199A Radio continuum emission from stars (Wendker, 1995)
Radio continuum emission from stars: a catalogue update
Wendker H.J.
<Astron. Astrophys. Suppl. Ser. 109, 177 (1995)>
=1995A&AS..109..177W 1995A&AS..109..177W (SIMBAD/NED Reference)
ADC_Keywords: Radio sources ; Stars, radio ; Radio continuum
Keywords: catalogues - stars: general - radio continuum: stars
Contents:
The following catalogue is an updated and changed version of the
one first published in Abh.Hamburger Sternw. 1978, Vol.10, p 1ff.
(CDS Catalogue II/129). A second version was published in 1987
(1987A&AS...69...87W 1987A&AS...69...87W) and microfiches (CDS Catalogue II/147).
The basic concept of the earlier versions is preserved (in file
"catalog.txt"), namely one entry per star per frequency per paper.
Space is now provided, however, to add more informations. These may be
of technical or astronomical nature. Usually month and year of
observation and the number of independent data points or length of
monitoring session are given.
In the file "catalog.txt", all radio data are preceded by a header
which contains information on the star or stellar system. (Note, that
a physical stellar system is regarded as one single entry and that
comments pertaining to individual components are found directly behind
the observational data). Stellar data like names, position, proper
motion, magnitudes and spectroscopic types are given in fixed format
in a self-explanatory fashion. It is tried to have typical values from
commonly available references. It is not intended to compete here with
other compilations. These header informations are collected when the
star is entered for the first time. They are only changed when new
values are available while additional radio refences are added. An
arbitrarily expandable section for unformatted text finishes the
header. Finally, the units of the radio data remain in MHz (1.column)
and mJy (2. and 3. columns). All coordinates refer to epoch and
equinox 1950.0 (e.g. B1950).
This is a so-called merged version e.g. all stars, those detected
at least once and those with upper limits only, are listed in
order of ascending right ascension. The detected stars are marked
with a "D" in the outermost right hand column in lines 1 to 5
('D' in column "Det" of the file "stars.dat").
The last updating occurred on 1994-Jul-01. In this version stars
have new running numbers.
Description:
Radio data
(1) Frequency in MHz
(2) Maximun flux density in mJy
(3) Minimun flux density in mJy. if =0, only one observation was made or the
emission was steady
(4) Code number of the reference
(5) Remarks pertaining to the individual observations
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 72 3021 Positions and designations of the stars
radio.dat 102 8875 Radio data
refs.dat 120 1037 References to the radio data
catalog.txt 100 31148 The catalogue as described above
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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- 4 I4 --- Seq [1/3021]+ Running number
6- 20 A15 --- Name Main designation
22- 39 A18 --- Alias Other name
45 A1 --- Det [D] for stars detected.
46- 47 I2 h RAh Right Ascension 1950 (hours)
49- 50 I2 min RAm Right Ascension 1950 (minutes)
52- 57 F6.3 s RAs Right Ascension 1950 (seconds)
60 A1 --- DE- Declination 1950 (sign)
61- 62 I2 deg DEd Declination 1950 (degrees)
64- 65 I2 arcmin DEm Declination 1950 (minutes)
67- 71 F5.2 arcsec DEs [0/60[? Declination 1950 (seconds)
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Byte-by-byte Description of file: radio.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Star number, as in file "stars"
7- 12 I6 MHz Freq Frequency of radio measurement
15 A1 --- l_Smax Limit flag on Smax
16- 25 F10.3 mJy Smax Maximum Flux at Freq
27 A1 --- l_Smin Limit flag on Smin
28- 36 F9.3 mJy Smin Minimum Flux at Freq
39 A1 --- --- [(]
40- 43 I4 --- r_Smax ? Reference of Fluxes
44 A1 --- --- [)]
47-102 A56 --- Notes Remarks and notes about the radio flux
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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- 4 I4 --- Ref Reference number
6 A1 --- --- [=]
7- 25 A19 --- Bibcode The 19-digit bibcode
27-120 A94 --- Text Text of reference
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Historical Notes:
* 08-Dec-1994: stored as received
* 08-Feb-1995: the file "stars" is generated from "catalog" with positions
and identifications of all 3021 stars
* 26-Nov-1998: corrected file "stars.dat", several identifications
found in error.
* 17-Jun-2004: added file "radio.dat", extracted from "catalog.txt".
Bibcodes added to the "refs.dat" file.
(End) Francois Ochsenbein, Patricia Bauer [CDS] 17-Jun-2004