150743 - A sensitive search for water masers associated with star formation regions in the Local Group Galaxy NGC 6822.pdf (913.16 kB)
A sensitive search for water masers associated with star formation regions in the Local Group Galaxy NGC 6822
journal contribution
posted on 2023-05-21, 08:57 authored by Conor FlanaganConor Flanagan, Simon EllingsenSimon Ellingsen, Andrew ColeAndrew ColeWe report the results of a sensitive search for water maser emission in the Local Group Galaxy NGC 6822 with the Karl G. Jansky Very Large Array. The observations provide tentative single-epoch detections of four candidates, associated with two infrared-bright star formation regions (Hubble I/III and Hubble IV). The candidate maser detections are all offset from the velocity range where strong emission from Hi neutral gas is observed towards NGC 6822, with the closest offset by ∼40kms-1. Our observations include the location of NL1K, a previous tentative water maser detection in NGC 6822. We do not detect any emission from this location with a sensitivity limit approximately a factor of 5 better than the original Sardina Radio Telescope observations.
History
Publication title
Publications of the Astronomical Society of AustraliaVolume
39Article number
e022Number
e022Pagination
1-6ISSN
1323-3580Department/School
School of Natural SciencesPublisher
Cambridge University PressPlace of publication
United KingdomRights statement
Copyright 2022 The Author(s). Published by Cambridge University Press on behalf of the Astronomical Society of Australia. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/Repository Status
- Open