A search for water masers associated with class II methanol masers - II. Longitude range 341${}^{\circ }$ to 6${}^{\circ }$

Abstract

This is the second paper in a series of catalogues of 22-GHz water maser observations towards the 6.7-GHz methanol masers from the Methanol Multibeam (MMB) Survey. In this paper we present our water maser observations made with the Australia Telescope Compact Array towards the masers from the MMB survey between l = 341${}^{\circ }$ through the Galactic centre to l = 6${}^{\circ }$. Of the 204 6.7-GHz methanol masers in this longitude range we found 101 to have associated water maser emission (~ 50 per cent). We found no difference in the 6.7-GHz methanol maser luminosities of those with and without water masers. In sources where both maser species are observed, the luminosities of the methanol and water masers are weakly correlated. Studying the mid-infrared colours from GLIMPSE we found no differences between the colours of those sources associated with both methanol and water masers and those associated with just methanol. Comparing the column density and dust mass calculated from the 870-micron thermal dust emission observed by ATLASGAL, we found no differences between those sources associated with both water and methanol masers and those with methanol only. Since water masers are collisionally pumped and often show emission further away from their accompanying YSO than the radiatively pumped 6.7-GHz methanol masers, it is likely water masers are not as tightly correlated to the evolution of the parent YSO and so do not trace such a well defined evolutionary state as 6.7-GHz methanol masers.

arXiv comment23 pages, 10 figures, accepted for publication in MNRAS

References in corpus (50)

• GLIMPSE: I. A SIRTF Legacy Project to Map the Inner Galaxy
• Trigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions
• ATLASGAL - The APEX Telescope Large Area Survey of the Galaxy at 870 microns
• Massive Stars: Their Environment and Formation
• The Australia Telescope Compact Array Broadband Backend (CABB)
• ATLASGAL - Compact source catalogue: 330 < l < 21 degrees
• The 6-GHz methanol multibeam maser catalogue I: Galactic Centre region, longitudes 345 to 6
• A Class I and Class II Methanol Maser Survey of Extended Green Objects (EGOs) from the GLIMPSE Survey
• The Bolocam Galactic Plane Survey -- II. Catalog of the Image Data
• The ATLASGAL survey: a catalog of dust condensations in the Galactic plane
• Methanol masers : Reliable tracers of the early stages of high-mass star formation
• The H_2O southern Galactic Plane Survey (HOPS): I. Techniques and H_2O maser data
• CH3OH and H2O masers in high-mass star-forming regions
• The 6-GHz Multibeam Maser Survey I. Techniques
• 12.2-GHz methanol masers associated with 1.2-mm dust clumps: Quantifying high-mass star formation evolutionary schemes
• ATLASGAL --- Environments of 6.7\,GHz methanol masers
• The 6-GHz methanol multibeam maser catalogue II: Galactic longitudes 6 to 20
• The 6-GHz methanol multibeam maser catalogue IV: Galactic longitudes 186 to 330 including the Orion-Monoceros region
• Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions
• A high-sensitivity 6.7 GHz methanol maser survey toward H2O sources
• A Search for OH Megamasers at z > 0.1. III. The Complete Survey
• Southern class I methanol masers at 36 and 44 GHz
• Class I methanol masers in the outflow of IRAS 16547-4247
• Precise Positions of Methanol Masers
• Interstellar H${}_2$O Masers from J Shocks
• A Survey of the Galactic Plane for 6.7-GHz Methanol Masers I: l = 325.0 - 335.0 ; b = -0.53 - 0.53
• The Physics of Water Masers observable with ALMA and SOFIA: Model Predictions for Evolved Stars
• Accurate water maser positions from HOPS
• Water maser variability over 20 years in a large sample of star-forming regions: the complete database
• Statistical properties of 12.2 GHz methanol masers associated with a complete sample of 6.7 GHz methanol masers
• Water masers accompanying OH and methanol masers in star formation regions
• Constraining the properties of 1.2-mm dust clumps that contain luminous water masers
• Observing the onset of outflow collimation in a massive protostar
• A multi-transition molecular line study of candidate massive young stellar objects associated with methanol masers
• Long-term study of water masers associated with Young Stellar Objects. II: Analysis
• The Arecibo Methanol Maser Galactic Plane Survey - III: Distances and Luminosities
• Investigating high-mass star formation through maser surveys
• 12.2-GHz methanol maser MMB follow-up catalogue - I. Longitude range 330 to 10 degrees
• Parkes full polarization spectra of OH masers - I. Galactic longitudes 350 through the Galactic Centre to 41
• New Distance and Revised Natures of High Mass Star Formation in G5.89-0.39
• The 6.7-GHz and 25-GHz methanol masers in OMC-1
• A 95 GHz Class I Methanol Maser Survey Toward A Sample of GLIMPSE Point Sources Associated with BGPS Clumps
• MALT-45: A 7 mm survey of the southern Galaxy - I. Techniques and spectral line data
• A search for water masers associated with class II methanol masers - I. Longitude range 6 to 20 degrees
• Discovery of the new class I methanol maser transition at 23.4 GHz
• 12.2-GHz methanol maser MMB follow-up catalogue - III. Longitude range 10 to 20 degrees
• Testing maser-based evolutionary schemes: A new search for 37.7-GHz methanol masers
• Discovery of Two New Class II Methanol Maser Transitions in G345.01+1.79
• The mid-infrared environments of 6.7 GHz Methanol Masers from the Methanol Multi-Beam Survey
• G10.472+0.027: An Extreme water maser outflow associated with a Massive Protostellar Cluster

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• Detection of new methanol maser transitions associated with G358.93-0.03
• Discovery of six new class II methanol maser transitions, including the unambiguous detection of three torsionally excited lines toward G358.931-0.030
• Young massive star cluster formation in the Galactic Centre is driven by global gravitational collapse of high-mass molecular clouds
• Accurate OH maser positions from the SPLASH pilot region
• Simultaneous Survey of Water and Class I Methanol Masers toward Red MSX Sources
• A multi-transition methanol maser study of the accretion burst source G358.93-0.03-MM1
• Accurate OH maser positions II. the Galactic Center region
• Accurate OH Maser Positions From The SPLASH Survey III: The Final 96 Square Degrees
• The 6-GHz multibeam maser survey III: comparison between the MMB and HOPS
• The Evolutionary Status of Protostellar Clumps Hosting Class II Methanol Masers
• ATLASGAL -- Relationship between dense star forming clumps and interstellar masers
• Protostellar Outflows at the EarliesT Stages (POETS). IV. Statistical properties of the 22 GHz H2O masers
• MAGMO: Polarimetry of 1720-MHz OH Masers towards Southern Star Forming Regions
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• KAgoshima Galactic Object survey with Nobeyama 45-metre telescope by Mapping in Ammonia lines (KAGONMA): Discovery of parsec-scale CO depletion in the Canis Major star-forming region