Observations of ground-state OH in the Large Magellanic Cloud

Abstract

We have carried out a series of observations of the 1665- and 1667-MHz transitions of the 2Pi_3/2, J=3/2 OH ground state towards six selected HII regions in the Large Magellanic Cloud (IRAS 05011-6815 and MRC 0510-689, 0513-694B, 0539-691, 0540-696B, 0540-697A) using the Australia Telescope Compact Array. The study has provided the first accurate positions for known 1665- and 1667-MHz OH masers as well as detecting several new masers. The regions all contain H_2O or CH_3OH masers but OH masers were detected in only four. The 1.6-GHz continuum emission was also imaged to investigate its spatial relationship to the associated OH maser. Although some masers are close to compact continuum components, in other cases they are near the continuum distribution boundaries and perhaps have been created as a result of the HII region interacting with the surrounding interstellar medium.

Accepted for publication in MNRAS 6 pages, 9 figures

Cited by in corpus (18)

• Abundances and Isotope Ratios in the Magellanic Clouds: The Star Forming Environment of N113
• Submillimeter-HCN Diagram for an Energy Diagnostics in the Centers of Galaxies
• Multibeam Maser Survey of methanol and excited OH in the Magellanic Clouds: new detections and maser abundance estimates
• The Life and Death of Dense Molecular Clumps in the Large Magellanic Cloud
• Masers associated with high-mass star formation regions in the Large Magellanic Cloud
• Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy
• The youngest massive protostars in the Large Magellanic Cloud
• Synthesis Imaging of Dense Molecular Gas in the N113 HII Region of the Large Magellanic Cloud
• ALMA Observations of Molecular Complexity in the Large Magellanic Cloud: The N105 Star-Forming Region
• Integral Field Spectroscopy of Massive Young Stellar Objects in the N113 H\,{\sc ii} Region in the Large Magellanic Cloud
• Resolving the compact HII regions in N160A with HST
• ASTE observations in the 345 GHz window towards the HII region N113 of the Large Magellanic Cloud
• OH (1720 MHz) Maser Search Toward the Large Magellanic Cloud
• Stellar populations associated with the LMC Papillon Nebula
• The application of MultiView Methods for High Precision Astrometric Space VLBI at Low Frequencies
• Sulfur isotope ratios in the Large Magellanic Cloud
• First detection of CF${}^{+}$ in the Large Magellanic Cloud
• The star formation process in the Magellanic Clouds