Work

The discovery of optical emission from the SNR G126.2 + 1.6

Year: 1980

Type: article

Abstract: Interference filter photographs have been used to identify an arc of nebulosity that is coincident with the radio contours of the galactic supernova remnant G126.2 + 1.6. Spectrophotometry of the filament shows that the emission-line spectrum matches the spectra of other galactic supernova remnants. In particular, the arc shows the usual strong forbidden S II and forbidden N II emission lines seen in other remnants and unusually strong forbidden O III emission as seen in a few remnants. The spectrum can be adequately matched by a shock of velocity near 100 km/s in an interstellar cloud of density 3. If the SNR is at a distance of 4.5 kpc as indicated by the ratio Sigma-D relation, then the observed pressure in the filament requires an initial energy near 4 x 10 to the 51st (d/4.5 kpc)-cubed ergs.

Source: The Astrophysical Journal

DOI: 10.1086/158494

Authors: W. P. Blair, D. L. Sawyer, R. P. Kirshner, T. R. Gull, R. A. R. Parker

Institutions: University of Michigan, Goddard Space Flight Center, Wesleyan University, Johnson Space Center

Language: English

Topic: Astrophysics and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Alfred P. Sloan Foundation

OpenAlex ID: W2070546542