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High-velocity H I jet-like feature towards the SNR candidate G351.7-1.2

Veena, V. S. and Vig, Sarita and Roy, Nirupam and Roy, Jayanta (2019) High-velocity H I jet-like feature towards the SNR candidate G351.7-1.2. In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 488 (1). L59-L63.

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Official URL: http://doi.org/10.1093/mnrasl/slz099


We present the H I 21 cm spectral line and continuum observations of the Galactic supernova remnant (SNR) candidate G351.7-1.2 using the upgraded Giant Metrewave Radio Telescope. Strong absorption features are observed towards the H II regions in the star-forming complex associated with G351.7-1.2. Along with H I emission towards the outer periphery of the SNR shell, we distinguish a high-velocity jet-like feature in the velocity range +40 to +52 km s(-1) in H I. This unusual and highly collimated feature, with a projected length of similar to 7 pc and an opening angle of 14.4 degrees, is located towards the interior of the radio shell. This is the first report of a well collimated H I jet-like emission. The peculiar location and the detection of a gamma-ray source towards the central peak of this H I jet suggests its plausible association with the SNR candidate.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to OXFORD UNIV PRESS
Keywords: H II regions; ISM: individual objects: SNR G351.7-1.2; ISM: supernova remnants; radio continuum: ISM; radio lines: ISM
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 05 Feb 2020 07:45
Last Modified: 05 Feb 2020 07:45
URI: http://eprints.iisc.ac.in/id/eprint/63580

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