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Excited-state hydroxyl maser catalogue from the methanol multibeam survey -- I. Positions and Variability

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A. Avison, L.J. Quinn, G.A. Fuller, J.L. Caswell, J.A. Green, S.L. Breen, S.P. Ellingsen, M.D. Gray
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M. Pestalozzi, M. A. Thompson, M. A. Voronkov

Astrophysics of Galaxies · Submitted 9 May 2016

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Using these we calculate for the first time an excited-state hydroxyl maser life time of between 3.3x10^3 and 8.3x10^3 years.

how it is stated · asserted 1.00 read the record →

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arXiv ID1605.02506 (version 3)
Pith IDTN5APDEU, Pith's permanent record of this paper and its review
CitationA. Avison, G.A. Fuller, J.A. Green, J.L. Caswell, L.J. Quinn, M. A. Thompson, M. A. Voronkov, M.D. Gray, M. Pestalozzi, S.L. Breen, S.P. Ellingsen. "Excited-state hydroxyl maser catalogue from the methanol multibeam survey -- I. Positions and Variability." arXiv:1605.02506 (2016). https://pith.science/paper/TN5APDEU
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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,830 input tokens.

What the abstract itself states, as probabilities: claims first 0.95 · states limitation 0.14 · human participants 0.01 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.52 · mentions code or data availability 0.03.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

We present the results of the first complete unbaised survey of the Galactic Plane for 6035-MHz excited-state hydroxyl masers undertaken as part of the Methanol Multibeam Survey. These observations cover the Galactic longitude ranges $186^{\circ}< l < 60^{\circ}$ including the Galactic Centre. We report the detection of 127 excited-state hydroxyl masers within the survey region, 47 being new sources. The positions of new detections were determined from interferometric observations with the Australia Telescope Compact Array. We discuss the association of 6035-MHz masers in our survey with the 6668-MHz masers from the MMB Survey, finding 37 likely methanol-excited-state hydroxyl masers maser pairs with physical separations of <=0.03pc and 55 pairings separated by <=0.1pc. Using these we calculate for the first time an excited-state hydroxyl maser life time of between 3.3x10^3 and 8.3x10^3 years. We also discuss the variability of the 6035-MHz masers and detection rates of counterpart 6030-MHz excited-state hydroxyl masers (28% of our sample having detection at both frequencies).

background contribution method result interpretation main claim

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#sentencerolethe authors' own workstates the main conclusionstrength
s0 We present the results of the first complete unbaised survey of the Galactic Plane for 6035-MHz excited-state hydroxyl masers undertaken as part of the Methanol Multibeam Survey. contribution 1.00 0.96 0.10 asserted 0.99
s1 These observations cover the Galactic longitude ranges $186^{\circ}< l < 60^{\circ}$ including the Galactic Centre. method 0.77 0.77 0.02 asserted 1.00
s2 We report the detection of 127 excited-state hydroxyl masers within the survey region, 47 being new sources. result 1.00 0.97 0.29 asserted 1.00
s3 The positions of new detections were determined from interferometric observations with the Australia Telescope Compact Array. method 1.00 0.94 0.03 asserted 1.00
s4 We discuss the association of 6035-MHz masers in our survey with the 6668-MHz masers from the MMB Survey, finding 37 likely methanol-excited-state hydroxyl masers maser pairs with physical separations of <=0.03pc and 55 pairings separated by <=0.1pc. result 0.95 0.96 0.12 asserted 0.77
s5 Using these we calculate for the first time an excited-state hydroxyl maser life time of between 3.3x10^3 and 8.3x10^3 years. result 0.99 0.96 0.30 asserted 1.00
s6 We also discuss the variability of the 6035-MHz masers and detection rates of counterpart 6030-MHz excited-state hydroxyl masers (28% of our sample having detection at both frequencies). result 0.83 0.94 0.08 asserted 1.00

What kind of paper the classifier reports this is: dataset or benchmark 0.85 · evidence from observation or experiment 1.00.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

We present the results of the first complete unbaised survey of the Galactic Plane for 6035-MHz excited-state hydroxyl masers undertaken as part of the Methanol Multibeam Survey. These observations cover the Galactic longitude ranges $186^{\circ}< l < 60^{\circ}$ including the Galactic Centre. We report the detection of 127 excited-state hydroxyl masers within the survey region, 47 being new sources. The positions of new detections were determined from interferometric observations with the Australia Telescope Compact Array. We discuss the association of 6035-MHz masers in our survey with the 6668-MHz masers from the MMB Survey, finding 37 likely methanol-excited-state hydroxyl masers maser pairs with physical separations of <=0.03pc and 55 pairings separated by <=0.1pc. Using these we calculate for the first time an excited-state hydroxyl maser life time of between 3.3x10^3 and 8.3x10^3 years. We also discuss the variability of the 6035-MHz masers and detection rates of counterpart 6030-MHz excited-state hydroxyl masers (28% of our sample having detection at both frequencies).

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