SIMBAD references

2019MNRAS.487L..77V - Mon. Not. R. Astron. Soc., 487, L77-L80 (2019/July-3)

Unusual flare activity in the extreme-velocity -81 km s–1 water-maser feature in W49N.

VOLVACH L.N., VOLVACH A.E., LARIONOV M.G., MacLEOD G.C. and WOLAK P.

Abstract (from CDS):

We report the detection of significant flaring events of the water masers associated with W49N using the radio telescopes RT-22 (Simeiz) and RT-32 (Torun). Two flares were detected between 2017 September to 2018 November. The -81 km s–1 water-maser feature reached a maximum of ∼50 kJy during these flares. The correlation of the observed exponential growth in flux density with a decreasing line width is consistent with the expected behaviour of an unsaturated maser. Possible mechanisms producing energy releases sufficient to power the water-maser flares in W49N are discussed.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: formation - (ISM:) HII regions - ISM: molecules - ISM: molecules

Simbad objects: 5

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