Multi-epoch VLBI of a double maser super burst

Journal
Date Issued
2018
Author(s)
Burns, R. A.
•
•
Orosz, G.
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Olech, M.
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Immer, K.
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Blanchard, J.
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Marcote, B.
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Van Langevelde, H.
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Hirota, T.
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Kim, K. T.
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Val‘tts, I.
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Shakhvorostova, N.
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Rudnitskii, G.
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Volvach, A.
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Volvach, L.
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MacLeod, G.
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Chibueze, J. O.
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•
Kramer, B.
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Baan, W.
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Brogan, C. L.
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Hunter, T.
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Kurtz, S.
DOI
Abstract
In a rare and spectacular display, two well-known massive star forming regions, W49N and G25.65+1.05, recently underwent maser 'super burst' - their fluxes suddenly increasing above 30,000 and 18,000 Jy, respectively, reaching several orders of magnitude above their usual values. In quick-response, ToO observations with the EVN, VLBA and KaVA were obtained constituting a 4 week campaign - producing a high-cadence multi-epoch VLBI investigation of the maser emission. The combination of high-resolution, polarisation and flux monitoring during the burst provides one of the best accounts, to date, of the maser super burst phenomenon, aiding their use as astrophysical tools. These proceedings contain the preliminary results of our campaign.
Coverage
14th European VLBI Network Symposium & Users Meeting (EVN 2018)
Volume
344
Start page
75
Conferenece
14th European VLBI Network Symposium & Users Meeting (EVN 2018)
Conferenece place
Granada, Spagna
Conferenece date
8-11 Ottobre, 2018
Uri
Url
Issn Identifier
1824-8039
Ads BibCode
2018evn..confE..75B
Rights
open.access
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