Continuum emission from the nucleus of NGC 1275

Longmore, A. J., Sharples, A. T., Tokunaga, A. T., Rudy, R. J., Robson, E. I., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401 and Radostitz, J. 1984. Continuum emission from the nucleus of NGC 1275. Monthly Notices of the Royal Astronomical Society 209 (2) , pp. 373-378. 10.1093/mnras/209.2.373

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Abstract

Submillimeter and multi-aperture near-infrared observations of NGC 1275 are presented. The luminosity of the extended stellar component within the near-infrared apertures has been determined, and consequently also the 1.25-3.5 micron energy distribution of the unresolved nucleus. The 1 micron-30 cm energy distribution is reviewed. It is argued that the most likely origin for the 100 micron-30 cm radiation is synchrotron emission, with this nonthermal component also contributing significant flux at 10 microns. No observations are yet available which make it possible to distinguish unequivocally between a thermal (dust) and synchrotron emission mechanism in the 1-10 micron region, but the evidence marginally favors a nonthermal origin.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	Oxford University Press
ISSN:	0035-8711
Last Modified:	27 Oct 2022 08:39
URI:	https://orca.cardiff.ac.uk/id/eprint/62990

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