J/ApJ/669/435 Arecibo Methanol Maser Galactic Plane Survey. II. (Pandian+, 2007)
The Arecibo Methanol Maser Galactic Plane Survey.
II. Statistical and multiwavelength counterpart analysis.
Pandian J.D., Goldsmith P.F.
<Astrophys. J., 669, 435-445 (2007)>
=2007ApJ...669..435P 2007ApJ...669..435P
ADC_Keywords: Surveys ; Masers ; Radio sources ; Cross identifications
Keywords: Galaxy: structure - H II regions - infrared: ISM - masers -
radio continuum: ISM - stars: formation - surveys
Abstract:
We present an analysis of the properties of the 6.7GHz methanol maser
sample detected in the Arecibo Methanol Maser Galactic Plane Survey.
The distribution of the masers in the Galaxy, and statistics of their
multiwavelength counterparts is consistent with the hypothesis of
6.7GHz maser emission being associated with massive young stellar
objects. Using the detection statistics of our survey, we estimate the
minimum number of methanol masers in the Galaxy to be 1275.
Description:
The methanol maser sample comes from the Arecibo Methanol Maser
Galactic Plane Survey (AMGPS), which is discussed in detail in Paper I
(Pandian et al., Cat. J/ApJ/656/255). The sample has 86 methanol
masers, 77 of which have peak flux densities above the completeness
limit of 0.27Jy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 31 266 The parameters of Gaussian components for 49 sources
for which the analysis has been carried out
table2.dat 69 51 IRAS, MSX, and NVSS counterparts for the AMGPS sample
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See also:
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)
J/ApJ/656/255 : Arecibo methanol maser Galactic plane survey. (Pandian+, 2007)
[PGD2007]
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- [PGD2007] Methanol maser name (GLL.ll+B.bb)
12- 13 I2 --- m_[PGD2007] Gaussian component number
15- 19 F5.2 Jy S Component flux density at 6.7GHz
21- 26 F6.2 km/s CVel Component center velocity
28- 31 F4.2 km/s DFWHM Component Full-Width at Half-Maximum
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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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1- 10 A10 --- [PGD2007] Methanol maser name (GLL.ll+B.bb)
12- 21 A10 --- IRAS IRAS source (HHMMm+DDMM)
23- 26 F4.1 arcsec SepI ? Separation between methanol maser and IRAS
sources
28- 44 A17 --- MSX MSX source (GLLL.llll+BB.bbbb)
46- 49 F4.1 arcsec SepM ? Separation between methanol maser and MSX
sources
51- 63 A13 --- NVSS NVSS source (HHMMSS+DDMMSS)
65- 69 F5.2 arcsec SepN ? Separation between methanol maser and NVSS
sources
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History:
From electronic version of the journal
References:
Pandian et al., Paper I 2007ApJ...656..255P 2007ApJ...656..255P, Cat. J/ApJ/656/255
Pandian et al., Paper III 2009ApJ...706.1609P 2009ApJ...706.1609P
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 16-Jan-2010