J/A+A/434/613 Water maser survey of methanol maser sources (Szymczak+, 2005)
Masers as signposts of high-mass protostars. A water maser survey of methanol
maser sources.
Szymczak M., Pillai T., Menten K.M.
<Astron. Astrophys. 434, 613 (2005)>
=2005A&A...434..613S 2005A&A...434..613S
ADC_Keywords: H II regions ; Masers ; Radio lines
Keywords: masers - star: formation - ISM: molecules - radio lines: ISM -
HII regions
Description:
High sensitivity observations of the 22GHz water maser emission have
been carried out with the Effelsberg 100m radio telescope. The
observed sample was 79 candidate high-mass protostellar objects from a
flux-limited sample of 6.7GHz methanol sources (Szymczak et al.,
2002A&A...392..277S 2002A&A...392..277S). Water maser emission was found in 41 sources of
which 28 were not previously catalogued.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 45 28 22 GHz line parameters for new detections
table2.dat 45 13 22 GHz line parameters for previously known sources
table3.dat 76 79 Properties of the sources
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See also:
J/A+A/403/1095 : 6.7GHz methanol masers survey of low-mass YSO (Minier+, 2003)
J/A+AS/134/115 : Medicina 6.7GHz methanol masers survey (Slysh+ 1999)
J/MNRAS/301/640 : Ultracompact H II regions studies. II. (Walsh+, 1998)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- [SKH2002] Source name from Szymzak et al.,
2002A&A...392..277S 2002A&A...392..277S
11- 16 F6.1 km/s DV ? Velocity interval at zero intensity
17- 23 F7.1 km/s Vc ? Velocity of centre
24- 30 F7.1 km/s Vp Velocity of peak
31- 37 F7.1 Jy Sp Flux density of peak at 22GHz
38- 45 F8.1 Jy.km/s Si Integrated flux density at 22GHz
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- [SKH2002] Source name from 2002A&A...392..277S 2002A&A...392..277S
13- 16 F4.1 kpc Dfar ? Far kinematic distance
19- 22 F4.1 kpc Dnear ? Near kinematic distance
24 I1 --- Note1 [1-3]? Unambiguous distance reference (1)
27- 30 F4.1 [solLum] logLOHfar ? OH maser luminosity for Dfar
33- 36 F4.1 [solLum] logLOHnear ? OH maser luminosity for Dnear
39- 42 F4.1 [solLum] logLCH3OHfar ? CH3OH maser luminosity for Dfar
45- 48 F4.1 [solLum] logLCH3OHnear ? CH3OH maser luminosity for Dnear
51- 54 F4.1 [solLum] logLH2Ofar ? H20 maser luminosity for Dfar
57- 60 F4.1 [solLum] logLH2Onear ? H2O maser luminosity for Dnear
62 I1 --- Note2 [1-2]? H2O luminosity reference (2)
66- 68 F3.1 [solLum] logLIRfar ? IR luminosity for Dfar
72- 74 F3.1 [solLum] logLIRnear ? IR luminosity for Dnear
76 I1 --- Note3 [1]? Radio counterpart (3)
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Note (1): Unambiguous distance references are:
1 = Kolpak et al., 2003, Cat. J/ApJ/582/756
2 = Sridharan et al., 2002ApJ...566..931S 2002ApJ...566..931S
3 = Sewilo et al., 2004, Cat. J/ApJS/154/553
Note (2): H2O luminosity references:
1 = Sridharan et al., 2002ApJ...566..931S 2002ApJ...566..931S
2 = Hofner & Churchwell, 1996, Cat. J/A+AS/120/283
Note (3): Radio counterpart reference:
1 = Becker et al., 1994, Cat. J/ApJS/92/533
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Acknowledgements: Marian Szymczak, msz(at)astro.uni.torun.pl
(End) Patricia Vannier [CDS] 22-Feb-2005