J/A+A/575/A49 H2O spectra of W33B in 1981-1985 (Colom+, 2015)
OH and H2O maser variations in W33B.
Colom P., Lekht E.E., Pashchenko M.I., Rudnitskij G.M.
<Astron. Astrophys. 575, A49 (2015)>
=2015A&A...575A..49C 2015A&A...575A..49C
ADC_Keywords: Masers ; Spectroscopy
Keywords: masers - ISM: magnetic fields - ISM: molecules -
ISM: lines and bands - ISM: individual objects: W33B
Abstract:
The active star-forming region W33B is a source of OH and H2O maser
emission located in distinct zones around the central object.
The aim was to obtain the complete Stokes pattern of polarised OH
maser emission and to trace its variability and to investigate flares
and long-term variability of the H2O maser and evolution of
individual emission features.
Observations in the OH lines at a wavelength of 18cm were carried out
on the Nancay radio telescope (France) at a number of epochs in
2008-2014; H2O line observations (long-term monitoring) at
λ=1.35cm were performed on the 22m radio telescope of the
Pushchino Radio Astronomy Observatory (Russia) between 1981 and 2014.
Description:
We observed H2O maser emission in the 1.35cm line toward W33B on the
22m radio telescope in Pushchino from February 1981 to January 2014
with a half-power beamwidth of 2.6'.
Objects:
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RA (2000) DE Designation(s)
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18 13 54.68 -18 01 48.1 W33B = GAL 012.68-00.18
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 32 26 List of spectra of the H2O maser emission in
W33B presented in Figure 7
fig7/* . 26 Individual spectra
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See also:
J/A+A/572/A63 : W33 integrated intensity maps (Immer+, 2014)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- FileName Name of the spectrum file in subdirectory fig7
14- 29 A16 "datime" Obs Observation date and UT time (DD/MM/YYYYThh:mm)
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Byte-by-byte Description of file: fig7/*
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Bytes Format Units Label Explanations
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1- 6 F6.3 km/s Vlsr LSR velocity
9- 17 F9.5 Jy S H2O flux density
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History:
Copied at http://comet.sai.msu.ru/~gmr/Maser_monitoring/W33B/H2O
(End) Patricia Vannier [CDS] 20-Feb-2015