J/MNRAS/416/1764 H2O Southern Galactic Plane Survey (HOPS) (Walsh+, 2011)
The H2O Southern Galactic Plane Survey (HOPS).
I. Techniques and H2O maser data.
Walsh A.J., Breen S.L., Britton T., Brooks K.J., Burton M.G.,
Cunningham M.R., Green J.A., Harvey-Smith L., Hindson L., Hoare M.G.,
Indermuehle B., Jones P.A., Lo N., Longmore S.N., Lowe V., Phillips C.J.,
Purcell C.R., Thompson M.A., Urquhart J.S., Voronkov M.A., White G.L.,
Whiting M.T.
<Mon. Not. R. Astron. Soc., 416, 1764-1821 (2011)>
=2011MNRAS.416.1764W 2011MNRAS.416.1764W
ADC_Keywords: Galactic plane ; Masers ; Radio lines
Keywords: masers - surveys - stars: formation - ISM: molecules -
Galaxy: structure - radio lines: ISM
Abstract:
We present first results of the H2O Southern Galactic Plane Survey
(HOPS), using the Mopra Radio Telescope with a broad-band backend and
a beam size of about 2arcmin. We have observed 100deg2 of the
southern Galactic plane at 12mm (19.5-27.5GHz), including spectral
line emission from H2O masers, multiple metastable transitions of
ammonia, cyanoacetylene, methanol and radio recombination lines. In
this paper, we report on the characteristics of the survey and H2O
maser emission. We find 540 H2O masers, of which 334 are new
detections.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 89 540 Properties of detected water masers
refs.dat 81 55 References
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See also:
J/A+AS/98/589 : IRAS Sources behind the Solar circle (Wouterloot+ 1993)
J/A+A/366/481 : ATCA/VLA OH 1612 MHz survey. III. (Sevenster+, 2001)
J/A+A/418/103 : 86GHz SiO maser survey in the Inner Galaxy (Messineo+, 2004)
J/ApJ/656/255 : Arecibo methanol maser Galactic Plane Survey (Pandian+, 2007)
J/ApJ/669/435 : Arecibo Methanol Maser Galactic Plane Survey II (Pandian+ 2007)
J/PASJ/59/559 : SiO maser search off the Galactic plane (Deguchi+, 2007)
J/PASJ/62/525 : SiO maser survey off the Galactic Plane (Deguchi+, 2010)
J/MNRAS/426/1972 : H2O Southern Galactic Plane Survey. II (Purcell+, 2012)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Source name (GLLL.lll+B.bb)
14- 15 I2 h RAh Right ascension (J2000)
17- 18 I2 min RAm Right ascension (J2000)
20- 23 F4.1 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 33 I2 arcsec DEs Declination (J2000)
35- 40 F6.1 Jy Speak Strongest maser spot peak flux density
42- 47 F6.1 km/s Vel Strongest maser spot line centre velocity
49- 52 F4.1 km/s FWHM Strongest maser spot line FWHM
54- 59 F6.1 km/s Vmin ?=- Velocity range, lower value (1)
61- 66 F6.1 km/s Vmax ?=- Velocity range, upper value (1)
68- 89 A22 --- Com Comments (2)
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Note (1): For maser sites with multiple maser spots, the minimum and
maximum velocities of the maser spots are given. Otherwise, for maser
sites with only a single maser spot, no velocity range is given.
Note (2): lists whether the maser site is a new detection ("NEW") or a
previous detection. Previous detections are listed as numbers which
refer to refs.dat file. If a previous detection also identifies the
maser site with an evolved star, this is also noted. If a previously
known evolved star is associated with a newly discovered H2O maser,
then "NEW" is written, as well as the reference number for the evolved
star association.
NEW: The majority of masers are presumed to be associated with star
formation. Previously known associations with evolved stars are
referenced, but we await higher precision positions to associate
the majority of masers.
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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- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 61 A38 --- Aut Author's name
63- 81 A19 --- Com Comments
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 26-Mar-2012