J/ApJS/155/149 CH3OH 70-61 A+ maser sources (Kurtz+, 2004)
A catalog of CH3OH 70-61 A+ maser sources in massive star-forming
regions.
Kurtz S., Hofner P., Alvarez C.V.
<Astrophys. J. Suppl. Ser., 155, 149-165 (2004)>
=2004ApJS..155..149K 2004ApJS..155..149K
ADC_Keywords: Masers ; H II regions ; Radial velocities ; Radio sources
Keywords: H II regions - ISM: molecules - masers - stars: early-type -
stars: formation
Abstract:
We present a Very Large Array survey of 44 massive star-forming
regions in the 44GHz 70-61 A+ methanol transition; 37 fields
showed maser emission. Thirty-one sources were also observed in the
23GHz 92-101 A+ methanol line; two fields showed maser emission.
Description:
Three observing runs (1997, 1999, 2000) were made, using the Very
Large Array (VLA) of the NRAO.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 85 169 44GHz masers
table6.dat 62 2 23GHz masers
table7.dat 47 22 44GHz maser offset information
refs.dat 191 16 References
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Source Source name (G1)
13 A1 --- f_Source Flag on Source (1)
15- 16 I2 --- Maser ? Maser Number
18 A1 --- f_Maser [*] Indicates maser component used for
self-calibration
20- 21 I2 h RAh ? Hour of Right Ascension (J2000)
23- 24 I2 min RAm ? Minute of Right Ascension (J2000)
26- 30 F5.2 s RAs ? Second of Right Ascension (J2000)
32 A1 --- DE- Sign of the Declination (J2000)
33- 34 I2 deg DEd ? Degree of Declination (J2000)
36- 37 I2 arcmin DEm ? Arcminute of Declination (J2000)
39- 42 F4.1 arcsec DEs ? Arcsecond of Declination (J2000)
44 A1 --- l_S44GHz Limit flag on S44GHz
45- 50 F6.2 Jy S44GHz Maximum flux density at 44GHz
52- 56 F5.1 km/s VLSR Local Standard of Rest velocity or lower
limit if there is a value in VLSRu
58- 61 F4.1 km/s VLSRu ? Upper limit on VLSR
63- 68 F6.2 km/s DelV ? Line width or lower limit if there is a
value in DelVu (2)
70- 74 F5.1 km/s DelVu ? Upper limit on DelV
76- 81 F6.2 Jy.km/s IS44GHz ? Integrated flux density at 44GHz
83- 85 A3 --- Note Additional notes (3)
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Note (1): The flag on Name has the following meaning:
c = Source was self-calibrated using the 23GHz continuum map.
d = No self-calibration was applied to this source.
e = In three cases (NGC 6334F, G8.67-0.36, and M17), 44GHz maser emission
was clearly detected in the field, but we are not able to reliably
determine its position. Only velocity information is provided in this
table. NGC 6334F and M17 don't have a maser number.
Note (2): A single number indicates the line width for Sv>3σ when
there is a single, contiguous run of channels. Two numbers
indicates the velocity range for which Sv>3σ when a
single sky position has multiple, non-adjacent channels above
the 3σ level.
Note (3): Additional notes, defined as follows:
1 = Possible multiple feature; maser position changes between channels.
2 = This maser contains multiple components that cannot be resolved with
our spatial resolution. The flux density, line width, and integrated
line intensity include the emission from all components present at
this spot.
3 = Absolute maser positions could not be determined for this source.
We give a lower limit to the flux of the strongest maser and the
velocity information.
4 = This maser appears to have nearby, thermal methanol emission.
5 = The positional uncertainty of this maser may be as great as 2".
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Source Source designation
12 I1 --- Maser Maser number
15- 16 I2 h RAh Hour of Right Ascension (J2000)
18- 19 I2 min RAm Minute of Right Ascension (J2000)
21- 25 F5.2 s RAs Second of Right Ascension (J2000)
28 A1 --- DE- Sign of Declination (J2000)
29- 30 I2 deg DEd Degree of Declination (J2000)
32- 33 I2 arcmin DEm Arcminute of Declination (J2000)
35- 38 F4.1 arcsec DEs Arcsecond of Declination (J2000)
41- 45 F5.2 Jy S23GHz Flux density at 23GHz
48- 52 F5.1 km/s VLSR Local Standard of Rest velocity
55- 57 F3.1 km/s DelV Line width
60- 62 F3.1 Jy.km/s IS23GHz Integrated flux density at 23GHz
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Source Source designation (1)
14- 15 I2 h RAh Hour of Right Ascension (J2000)
17- 18 I2 min RAm Minute of Right Ascension (J2000)
20- 24 F5.2 s RAs Second of Right Ascension (J2000)
27 A1 --- DE- Sign of Declination (J2000)
28- 29 I2 deg DEd Degree of Declination (J2000)
31- 32 I2 arcmin DEm Arcminute of Declination (J2000)
34- 37 F4.1 arcsec DEs Arcsecond of Declination (J2000)
40- 43 F4.1 kpc Dist Distance
46- 47 I2 --- r_Dist Distance reference
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Note (1): W51 E1 modified into W51 E.
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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
25- 44 A20 --- Aut Authors
50-209 A160 --- Com Comments
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Global Notes:
Note (G1): Maser are identified as [KHA2004] Source Maser,
i.e. [KHA2004] S232 N for masers in S232 source.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 07-Jun-2005