GASKAP-OH: A new deep survey of ground-state OH masers and absorption in the southern sky

J. R. Dawson; S. L. Breen; GASKAP-OH Team

doi:10.1017/S1743921323002405

GASKAP-OH: A new deep survey of ground-state OH masers and absorption in the southern sky

J. R. Dawson, S. L. Breen, GASKAP-OH Team

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Abstract

The Galactic ASKAP survey of OH (GASKAP-OH) is surveying the Milky Way Fourth Quadrant, the Galactic Centre, the Galactic Bulge and the Large Magellanic Cloud (LMC) in the 18-cm ground-state lines of the hydroxyl radical (OH), using Australia’s Square Kilometre Array Pathfinder (ASKAP) telescope. With an expected per-channel rms sensitivity of 36 mJy/beam in its shallowest regions, and a velocity channel width of 0.1 km s-1, GASKAP-OH is expected to discover hundreds of new star-formation and evolved star OH masers, as well as extensive absorption from quasi-thermal OH throughout the Galactic Plane. We here summarise the science goals and technical specifications of the survey, and report initial detection results from test observations. GASKAP-OH is expected to run for several years and is an open collaboration. Data products will be made available to the wider community as soon as they are verified.

Original language	English
Pages (from-to)	486-490
Number of pages	5
Journal	Proceedings of the International Astronomical Union
Volume	18
Issue number	S380 (2022)
DOIs	https://doi.org/10.1017/S1743921323002405
Publication status	Published - 2024

Bibliographical note

© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

masers
surveys
radio lines: ISM
radio lines: stars

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10.1017/S1743921323002405Licence: CC BY

Publisher version (open access)Final published version, 2.05 MBLicence: CC BY

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title = "GASKAP-OH: A new deep survey of ground-state OH masers and absorption in the southern sky",

abstract = "The Galactic ASKAP survey of OH (GASKAP-OH) is surveying the Milky Way Fourth Quadrant, the Galactic Centre, the Galactic Bulge and the Large Magellanic Cloud (LMC) in the 18-cm ground-state lines of the hydroxyl radical (OH), using Australia{\textquoteright}s Square Kilometre Array Pathfinder (ASKAP) telescope. With an expected per-channel rms sensitivity of 36 mJy/beam in its shallowest regions, and a velocity channel width of 0.1 km s-1, GASKAP-OH is expected to discover hundreds of new star-formation and evolved star OH masers, as well as extensive absorption from quasi-thermal OH throughout the Galactic Plane. We here summarise the science goals and technical specifications of the survey, and report initial detection results from test observations. GASKAP-OH is expected to run for several years and is an open collaboration. Data products will be made available to the wider community as soon as they are verified.",

keywords = "masers, surveys, radio lines: ISM, radio lines: stars",

author = "Dawson, {J. R.} and Breen, {S. L.} and {GASKAP-OH Team}",

note = "{\textcopyright} The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2024",

doi = "10.1017/S1743921323002405",

language = "English",

volume = "18",

pages = "486--490",

journal = "Proceedings of the International Astronomical Union",

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AU - Breen, S. L.

AU - GASKAP-OH Team

N1 - © The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2024

Y1 - 2024

N2 - The Galactic ASKAP survey of OH (GASKAP-OH) is surveying the Milky Way Fourth Quadrant, the Galactic Centre, the Galactic Bulge and the Large Magellanic Cloud (LMC) in the 18-cm ground-state lines of the hydroxyl radical (OH), using Australia’s Square Kilometre Array Pathfinder (ASKAP) telescope. With an expected per-channel rms sensitivity of 36 mJy/beam in its shallowest regions, and a velocity channel width of 0.1 km s-1, GASKAP-OH is expected to discover hundreds of new star-formation and evolved star OH masers, as well as extensive absorption from quasi-thermal OH throughout the Galactic Plane. We here summarise the science goals and technical specifications of the survey, and report initial detection results from test observations. GASKAP-OH is expected to run for several years and is an open collaboration. Data products will be made available to the wider community as soon as they are verified.

AB - The Galactic ASKAP survey of OH (GASKAP-OH) is surveying the Milky Way Fourth Quadrant, the Galactic Centre, the Galactic Bulge and the Large Magellanic Cloud (LMC) in the 18-cm ground-state lines of the hydroxyl radical (OH), using Australia’s Square Kilometre Array Pathfinder (ASKAP) telescope. With an expected per-channel rms sensitivity of 36 mJy/beam in its shallowest regions, and a velocity channel width of 0.1 km s-1, GASKAP-OH is expected to discover hundreds of new star-formation and evolved star OH masers, as well as extensive absorption from quasi-thermal OH throughout the Galactic Plane. We here summarise the science goals and technical specifications of the survey, and report initial detection results from test observations. GASKAP-OH is expected to run for several years and is an open collaboration. Data products will be made available to the wider community as soon as they are verified.

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KW - radio lines: ISM

KW - radio lines: stars

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JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S380 (2022)

ER -

GASKAP-OH: A new deep survey of ground-state OH masers and absorption in the southern sky

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Keywords

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