Aims. Our aim was to measure and characterize the short-wavelength radio emission from young stellar objects (YSOs) in the Orion Nebula Cluster and the BN/KL star-forming region. Methods. We used the NRAO Very Large Array at a wavelength of A = 1.3 cm and we studied archival X-ray, infrared, and radio data. Results. During our observation, a strong outburst (flux increasing > 10 fold) occurred in one of the 16 sources detected at A = 1.3 cm, while the others remained (nearly) constant. This source does not have an infrared counterpart, but has subsequently been observed to flare in X-rays. Curiously, a very weak variable double radio source was found at other epochs near this position, one of whose components is coincident with it. A very high extinction derived from modeling the X-ray emission and the absence of an infrared counterpart both suggest that this source is very deeply embedded.
Orion Nebula Young Stellar Objects Strong Outburst Radio Data Large Array Star-forming Region Short-wavelength Emission Double Source Weak Source Variable Source
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Climate change Research Articles published between Jan 23, 2023 to Jan 29, 2023
Jan 30, 2023
Articles Included: 3
Climate change adaptation has shifted from a single-dimension to an integrative approach that aligns with vulnerability and resilience concepts. Adapt...Read More
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