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Accurate OH maser positions from the SPLASH Survey. III. The final 96 deg2

Qiao, H-H, Breen, SL, Gomez, JF, Dawson, JR, Walsh, AJ, Green, JA, Ellingsen, SP ORCID: 0000-0002-1363-5457, Imai, H and Shen, Z-Q 2020 , 'Accurate OH maser positions from the SPLASH Survey. III. The final 96 deg2' , The Astrophysical Journal Supplement Series, vol. 247, no. 1 , pp. 1-22 , doi:

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We present high spatial resolution observations of ground-state OH masers achieved with the Australia Telescope Compact Array (ATCA). These observations targeted 253 pointing centers containing OH maser candidates at all four ground-state OH transitions identified in the Southern Parkes Large-Area Survey in Hydroxyl (SPLASH) across 96 deg2 of the southern Galactic plane (332° l b l b l b l b 2) and find that the detection rate of 1.7 GHz radio continuum sources (18%) is lower than that previously found at 8.2 and 9.2 GHz (38%). We also find that the velocity separations of evolved star sites with symmetric 1612 MHz maser profiles are generally smaller than those with asymmetric profiles.

Item Type: Article
Authors/Creators:Qiao, H-H and Breen, SL and Gomez, JF and Dawson, JR and Walsh, AJ and Green, JA and Ellingsen, SP and Imai, H and Shen, Z-Q
Keywords: catalogs, interstellar molecules, circumstellar masers, interstellar masers, star formation, asymptotic giant branch stars, post-asymptotic giant branch
Journal or Publication Title: The Astrophysical Journal Supplement Series
Publisher: Univ Chicago Press
ISSN: 0067-0049
DOI / ID Number:
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Copyright 2020 The American Astronomical Society

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