SIMBAD references

2002ApJ...580..305D - Astrophys. J., 580, 305-316 (2002/November-3)

Mid-infrared imaging of NGC 6334 I.


Abstract (from CDS):

We present high-resolution (<0".5) mid-infrared Keck II images of individual sources in the central region of NGC 6334 I. We compare these images to images at a variety of other wavelengths from the near-infrared to centimeter radio continuum and speculate on the nature of the NGC 6334 I sources. We assert that the cometary shape of the ultracompact H II (UCHII) region here, NGC 6334F, is due to a champagne-like flow from a source on the edge of a molecular clump and not due to a bow shock caused by the supersonic motion of the UCHII region through the interstellar medium. The mid-infrared emission is concentrated into an arc of dust that defines the boundary between the UCHII region and the molecular clump. This dust arc contains a majority of the masers in the region. We discuss the nature of the four near-infrared sources associated with IRS I1 and suggest that one of the sources, IRS 1E, is responsible for the heating and ionizing of the UCHII region and the mid-infrared dust arc. Infrared source IRS I2, which has been thought to be a circumstellar disk associated with a linear distribution of methanol masers, is found not to be directly coincident with the masers and elongated at a much different position angle. IRS I3 is found to be a extended source of mid-infrared emission coming from a cluster of young dusty sources seen in the near-infrared.

Abstract Copyright:

Journal keyword(s): ISM: H II Regions - Infrared: ISM - ISM: Individual: NGC Number: NGC 6334I - Stars: Formation

CDS comments: p. 310 : G9.62-0.19 is a misprint for G9.62+0.19

Simbad objects: 11

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