2019MNRAS.487.2407P

Query : 2019MNRAS.487.2407P

2019MNRAS.487.2407P - Mon. Not. R. Astron. Soc., 487, 2407-2411 (2019/August-1)

Discovery of periodic methanol masers associated with G323.46-0.08.

PROVEN-ADZRI E., MacLEOD G.C., VAN DEN HEEVER S.P., HOARE M.G., KUDITCHER A. and GOEDHART S.

Abstract (from CDS):

The 6.7 GHz methanol masers associated with G323.46-0.08 have undergone significant change since their discovery in 1992. After 2009 April, new features with a peak flux density of ∼500 Jy in the velocity channel v = -68.35 km s–1, in the velocity range from -71 to -68.5 km s–1 were detected. It is suggestive that it experienced an accretion event similar to that reported in S255-NIRS3 and NGC 6334I. Evidence of periodicity is found in all of the associated methanol masers with a period of ∼93.5 d. It is not possible to determine if this source was periodic before 2017. However, all the 6.7 GHz methanol masers are probably amplifying a common background periodic radio source.

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

Journal keyword(s): masers - stars: formation - stars: protostars - ISM: individual objects: G323.46-0.08 - ISM: molecules - radio lines: ISM

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
2 MMB G192.600-00.048 Y*O 06 12 54.0100 +17 59 23.200           ~ 430 0
3 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
4 IRAS 15254-5621 Y*? 15 29 19.33 -56 31 22.8           ~ 108 0
5 AGAL G339.986-00.426 smm 16 48 46.313 -45 31 52.15           ~ 11 0
6 NAME NGC 6334-I Cl* 17 20 53.35 -35 47 01.5           ~ 373 0
7 GAL 009.62+00.19 HII 18 06 13.9 -20 31 44           ~ 226 0
8 GAL 012.89+00.49 HII 18 11 51.3 -17 31 29           ~ 217 0

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