Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639

A. Bartkiewicz; M. Gawronski; M. Olech; M. Szymczak; P. Wolak

Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1604.00796 v1 pith:W7X5IOA2 submitted 2016-04-04 astro-ph.SR astro-ph.GA

Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639

M. Szymczak , M. Olech , P. Wolak , A. Bartkiewicz , M. Gawronski This is my paper

classification astro-ph.SR astro-ph.GA

keywords maserflaresmethanolwaterperiodicstellarcomponentsg107

verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved

0 comments

read the original abstract

Methanol and water vapour masers are signposts of early stages of high-mass star formation but it is generally thought that due to different excitation processes they probe distinct parts of stellar environments. Here we present observations of the intermediate-mass young stellar object G107.298+5.639, revealing for the first time that 34.4 d flares of the 6.7 GHz methanol maser emission alternate with flares of individual features of the 22 GHz water maser. High angular resolution data reveal that a few components of both maser species showing periodic behaviour coincide in position and velocity and all the periodic water maser components appear in the methanol maser region of size of 360 au. The maser flares could be caused by variations in the infrared radiation field induced by cyclic accretion instabilities in a circumstellar or protobinary disc. The observations do not support either the stellar pulsations or the seed photon flux variations as the underlying mechanisms of the periodicity in the source.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Fast Population Leakage in Astronomical Masers: Maser Amplification and Transient Superradiance
astro-ph.HE 2026-07 reject novelty 5.0

In a three-level maser model, a fast competing decay channel on the shared upper level does not automatically suppress superradiance; the 6.7 GHz methanol flare in S255IR-NIRS3 can still be reproduced when the leakage...