2023MNRAS.520.5464M

Query : 2023MNRAS.520.5464M

2023MNRAS.520.5464M - Mon. Not. R. Astron. Soc., 520, 5464-5474 (2023/April-3)

Identifying Zeeman pairs of hydroxyl masers in NGC 6334I-MM3 via velocity drift.

MacLEOD G.C., SMITS D.P., HUNTER T.R., BROGAN C., CHIBUEZE J.O. and VAN DEN HEEVER S.P.

Abstract (from CDS):

A new tool to identify possible Zeeman pairs is presented here: the right circularly polarized (RCP) and left circularly polarized (LCP) components of a pair with velocity drift at the same rate. Long-term monitoring of hydroxyl transitions towards NGC 6334I-MM3 has resulted in the identification of three possible Zeeman pairs, one each at the 1.667, 6.030, and 6.035 GHz transitions, where the rate of drift of the RCP feature equals that of the LCP component. Historical observations suggest that their drift has been occurring over 40 yr. A fourth pair in the 1.720 GHz OH transition may indicate magnetic field variation over 50 yr.

Abstract Copyright: © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): masers - stars: formation - stars: protostars - radio lines: ISM - ISM: molecules - ISM: individual objects: NGC 6334I-MM3

Simbad objects: 9

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Number of rows : 9
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 W 3 OH HII 02 27 04.1 +61 52 22           ~ 1064 2
2 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
3 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
4 NGC 6334B rG 17 20 21.810 -35 52 48.25           ~ 113 0
5 NAME NGC 6334-I Cl* 17 20 53.35 -35 47 01.5           ~ 373 0
6 [BHC2016] MM1 cor 17 20 53.415 -35 46 57.88           ~ 121 0
7 NAME NGC 6334F (C) HII 17 20 53.45 -35 47 02.6           ~ 244 1
8 NAME NGC 6334 I(N) smm 17 20 54 -35 45.0           ~ 165 1
9 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 760 2

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