SIMBAD references

2012ApJ...759..136C - Astrophys. J., 759, 136 (2012/November-2)

Water and methanol maser activities in the NGC 2024 FIR 6 region.

CHOI M., KANG M., BYUN D.-Y. and LEE J.-E.

Abstract (from CDS):

The NGC 2024 FIR 6 region was observed in the water maser line at 22 GHz and the methanol class I maser lines at 44, 95, and 133 GHz. The water maser spectra displayed several velocity components and month-scale time variabilities. Most of the velocity components may be associated with FIR 6n, while one component was associated with FIR 4. A typical lifetime of the water maser velocity components is about eight months. The components showed velocity fluctuations with a typical drift rate of about 0.01 km/s/day. The methanol class I masers were detected toward FIR 6. The methanol emission is confined within a narrow range around the systemic velocity of the FIR 6 cloud core. The methanol masers suggest the existence of shocks driven by either the expanding H II region of FIR 6c or the outflow of FIR 6n.

Abstract Copyright:

Journal keyword(s): ISM: individual: NGC 2024 FIR 6 - ISM: structure - masers - stars: formation

Simbad objects: 14

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2012ApJ...759..136C and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact