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X-ray, Optical and UV Observations of the Young Supernova Remnant in the Irregular Galaxy NGC 4449
Published online by Cambridge University Press: 04 August 2017
Abstract
A powerful young supernova remnant (SNR) similar to Cas A has recently been discovered in the irregular galaxy NGC 4449. We have obtained X-ray, optical and ultraviolet data which allow us to investigate possible models for this object and estimate its age. Several lines of argument indicate a massive star of order 25 M⊙ as the precursor to this remnant. If the x-ray emission is attributed to a reverse shock in the ejecta, the remnant should be ∼ 120 years old.
- Type
- VI. Supernova Remnants in Other Galaxies
- Information
- Symposium - International Astronomical Union , Volume 101: Supernova Remnants and Their X-Ray Emission , 1983 , pp. 579 - 582
- Copyright
- Copyright © Reidel 1983