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J/MNRAS/416/178     1.2-mm dust clumps with luminous water masers (Breen+, 2011)

Constraining the properties of 1.2-mm dust clumps that contain luminous water masers. Breen S.L., Ellingsen S.P. <Mon. Not. R. Astron. Soc., 416, 178-204 (2011)> =2011MNRAS.416..178B
ADC_Keywords: Molecular clouds ; Radio lines ; Masers Keywords: masers - stars: formation - ISM: molecules - radio lines: ISM Abstract: We have conducted a sensitive water maser search with the Australia Telescope Compact Array towards 267 1.2-mm dust clumps presented in the literature. We combine our new observations with previous water maser observations to extend our sample to 294 1.2-mm dust clumps, towards which we detect 165 distinct water maser sites towards 128 1.2-mm dust clumps. Within the fields of our observations, we additionally find four water masers with no apparent associated 1.2-mm dust continuum emission. Our overall detection rate of 44 per cent appears to vary as a function of Galactic longitude. We find that there is an excellent correspondence between the locations of the detected water masers with the peak of the target 1.2-mm dust clump sources. As expected from previous similar studies, the water masers are chiefly detected towards the bigger, brighter and more massive 1.2-mm dust clumps. Description: The feasibility of this study was tested with observations using the University of Tasmania's 26-m Mount Pleasant radio telescope. All 404 1.2-mm dust clumps given in Hill et al. (2005, Cat. J/MNRAS/363/405) were targeted in these observations during 2007. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 150 331 Target 1.2-mm dust clumps, probability of water maser association, followed by a description of the water maser observations including any detections
See also: J/MNRAS/363/405 : SIMBA observations of cold cores (Hill+, 2005) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 15 A15 --- Clump 1.2mm dust clump name (l, b) [HBM2005] (1) 17- 18 I2 h RAh 1.2mm dust clump right ascension (J2000) (1) 20- 21 I2 min RAm 1.2mm dust clump right ascension (J2000) 23- 26 F4.1 s RAs 1.2mm dust clump right ascension (J2000) 28 A1 --- DE- 1.2mm dust clump declination sign (J2000) (1) 29- 30 I2 deg DEd 1.2mm dust clump declination (J2000) 32- 33 I2 arcmin DEm 1.2mm dust clump declination (J2000) 35- 36 I2 arcsec DEs 1.2mm dust clump declination (J2000) 38- 44 E7.2 --- Prob Calculated probability of water maser presence (2) 46- 54 A9 --- Inst Array and epoch (3) 56- 70 A15 --- Maser Water maser name (l, b), [HBM2005] 72- 73 I2 h RA1h ? 1.2mm dust clump right ascension (J2000) 75- 76 I2 min RA1m ? 1.2mm dust clump right ascension (J2000) 78- 82 F5.2 s RA1s ? 1.2mm dust clump right ascension (J2000) 84 A1 --- DE1- ? 1.2mm dust clump declination sign (J2000) 85- 86 I2 deg DE1d ? 1.2mm dust clump declination (J2000) 88- 89 I2 arcmin DE1m ? 1.2mm dust clump declination (J2000) 91- 94 F4.1 arcsec DE1s ? 1.2mm dust clump declination (J2000) 96- 97 I2 arcsec Sep ? Separation between water maser and 1.2-mm dust clump peak 98 A1 --- n_Sep [*] * no dust clump reported at this position 100 A1 --- l_Sp Limit flag for 5σ limit on Sp 101-108 F8.3 Jy Sp Water maser peak flux density or 5σ detection limit 110-115 F6.1 km/s Vp ? Velocity of the water maser peak emission 117-121 I5 km/s Vr1 ? Velocity range of either the detected emission or the observed velocity range if no detection 122 A1 --- --- [,] 123-126 I4 km/s Vr2 ? Velocity range of either the detected emission or the observed velocity range if no detection 128-133 F6.1 Jy.km/s Int ? Integrated flux density of the water maser emission 135-150 A16 --- Notes Notes (4)
Note (1): from Hill et al. 2005, Cat. J/MNRAS/363/405. Note (2): using the model derived by Breen et al. 2007MNRAS.377..491B. Note (3): gives information about the ATCA array configuration used in the water maser observations followed by the epoch. H75 = 2007 October 9, 10, H214 = 2007 December 7, H214 = 2008 July 12, 13, 6B = 2008 August 15, 16, 17. In some cases, data are taken from Breen et al. (2010MNRAS.406.1487B), which are marked with a `BCEP' followed by the year of the observations. This format is also followed for sources taken from Caswell & Breen (2010MNRAS.407.2599C) (CB) and Forster & Caswell (1989A&A...213..339F) (FC). Note (4): Presents notes related to the sources, which in most cases are further discussed in Section 3.1. Note the following abbreviations: BS(RS) indicates that the source is dominated by a blueshifted (redshifted) feature.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Mar-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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