Thermal and non-thermal emission from NGC 1275 (3C 84)

Gear, Walter Kieran ORCID: https://orcid.org/0000-0001-6789-6196, Robson, E. I., Gee, G. and Nolt, I. G. 1985. Thermal and non-thermal emission from NGC 1275 (3C 84). Monthly Notices of the Royal Astronomical Society 217 , pp. 281-290.

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Abstract

The authors present millimetre, submillimetre, far- and near-infrared observations of the unusual galaxy NGC 1275. After subtracting the near-infrared stellar contamination of the surrounding galaxy they investigate the non-stellar emission at these wavelengths. They conclude that the millimetre-wave and near-infrared emission is synchrotron radiation from a very compact component. The variability properties and radio morphology are similar to 3C 273 and the very active Blazars. It is shown that the emission at wavelengths from 10 - 400 μm is dominated by thermal emission with a spectrum very similar to NGC 1068 and that the material for star formation in NGC 1275 is almost certainly being provided by accretion in a cooling flow from the Perseus intracluster gas with only ≡2 per cent of the accreting mass forming OBA stars.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Galactic Radiation, Infrared Astronomy, Nonthermal Radiation, Radio Astronomy, Thermal Emission, Blazars, Cooling Flows (astrophysics), Far Infrared Radiation, Luminosity, Millimeter Waves, Near Infrared Radiation, Stellar Radiation, Synchrotron Radiation
Publisher:	Wiley-Blackwell
ISSN:	0035-8711
Last Modified:	21 Oct 2022 09:26
URI:	https://orca.cardiff.ac.uk/id/eprint/36468

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