Intrinsic Variations of Interstellar Extinction Laws

Details Intrinsic Variations of Interstellar Extinction Laws Intrinsic Variations of Interstellar Extinction Laws

Jul 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971ap%26ss..12..151n&link_type=abstract

Astrophysics and Space Science, Volume 12, Issue 1, pp.151-157

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The intrinsic ultraviolet colours of early type stars have been derived from the rocket data of J. W. Campbell and A. M. Smith. There exists a considerable spread in these colours. One possible source is the predicted rms variation due to the effect of rotation. It is necessary to recognise that rotation is an important source of uncertainty of the interstellar extinction curves derived from the comparison of pairs of stars. Predicted rms errors due to different sources (rotation, uncertainty of MK spectral type, photometric errors) have been compared with the dispersion of the observed extinction data and it is found that part of the large scatter could be due to intrinsic differences of the properties of interstellar grains.

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