A Cluster of Compact Radio Sources in NGC 2024 (Orion B)

Abstract

We present deep 3.6 cm radio continuum observations of the H II region NGC 2024 in Orion B obtained using the Very Large Array in its A-configuration, with $0\text{.}{}^{\prime \prime }2$ angular resolution. We detect a total of 25 compact radio sources in a region of $4^{\prime }\times 4^{\prime }$. We discuss the nature of these sources and its relation with the infrared and X-ray objects in the region. At least two of the radio sources are obscured proplyds whose morphology can be used to restrict the location of the main ionizing source of the region. This cluster of radio sources is compared with others that have been found in regions of recent star formation.

arXiv comment21 pages, 7 figures

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• Stellar Winds and Embedded Star Formation in the Galactic Center Quintuplet and Arches Clusters: Multifrequency Radio Observations
• Protoplanetary Disk Masses in the Young NGC 2024 Cluster
• A high-frequency radio continuum study of massive young stellar objects
• High-mass star formation in Orion B triggered by cloud-cloud collision: Merging molecular clouds in NGC 2024
• A Cluster of Compact Radio Sources in W40
• Water and Methanol Maser Activities in the NGC 2024 FIR 6 Region
• Radio Observations of the Star Formation Activities in the NGC 2024 FIR 4 Region
• Radio Imaging of the NGC 2024 FIR 5/6 Region: a Hypercompact H II Region Candidate in Orion
• Dynamical masses of young stellar objects with the VLBA: DYNAMO-VLBA: Radio binary stars in Orion
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