A radiocontinuum study of the supernova remnant MSH 11-61A | Zendy

M. D. Filipović | Zendy; J. L. Payne | Zendy; P. A. Jones | Zendy

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A radiocontinuum study of the supernova remnant MSH 11-61A

Author(s) -

M. D. Filipović,

J. L. Payne,

P. A. Jones

Publication year - 2005

Publication title -

serbian astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.196

H-Index - 16

eISSN - 1820-9289

pISSN - 1450-698X

DOI - 10.2298/saj0570047f

Subject(s) - physics , supernova remnant , astrophysics , supernova , spectral index , astronomy , spectral line

We present a high-resolution radio-continuum study of Galactic supernova remnant MSH 11-61A. We combine moderate resolution X-ray, radio-continuum and CO data to study the morphology and kinematics of MSH 11-61A. We estimate the radio-continuum spectral index to be ∞843-4850=-0.33 Â±0.07 based on our flux density measurements and also note that this SNR has signi cant `turn-over' spectra at lower (29.9-843 MHz) frequencies. The diameter of MSH11{61A is estimated to be 12.5' with 'ear' extensions of 4' to the northwest and southeast. The striking anticorrelation between X-ray and radio-continuum images con rms a mixed-morphology classi cation of this remnant. The CO images are consistent with a distance reported by Rosado et al. (1996) of about 7 kpc

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