Anomalous reddening of supernovae
Abstract
The correlation between the color excesses E(B-V) and the absolute magnitudes of supernovas distorted by absorption in the complex around the Virgo cluster of galaxies is investigated. It is shown that type 1 supernovas with different reddenings have equal mean luminosities only when an allowance is made for the absorption (attenuation) of light according to a given relation. When this allowance is made, it is found that moderately reddened type 1 supernovas in spiral galaxies make standard candles that are nearly as satisfactory as type 1 supernovas in elliptical galaxies.
- Publication:
-
Astrofizika
- Pub Date:
- October 1982
- Bibcode:
- 1982Afz....18..574J
- Keywords:
-
- Absorption Spectra;
- Interstellar Extinction;
- Photoabsorption;
- Supernovae;
- Virgo Galactic Cluster;
- Data Correlation;
- Elliptical Galaxies;
- Light Curve;
- Luminosity;
- Magnitude;
- Radial Velocity;
- Spiral Galaxies;
- Astrophysics