Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85.1638t&link_type=abstract
Astronomical Journal, vol. 85, Dec. 1980, p. 1638-1643. NASA-NSF-supported research.
Astronomy and Astrophysics
Astronomy
27
Cosmic Dust, Interstellar Matter, Polarimetry, Stellar Spectrophotometry, Emission Spectra, H Alpha Line, H Beta Line, Histograms, Interstellar Magnetic Fields, Late Stars, Polarized Light, Sky Surveys (Astronomy), Star Distribution
Scientific paper
Spectroscopy and polarimetry of several very red stars, noted on Near Infrared Photographic Sky Survey photographs in the region of NGC 1333, have yielded a 'map' suggesting the extent of polarization arising from a two-cloud structure in the region. Spectral types and color indices of the stars make it possible to infer that grain radii in the clouds exceed typical interstellar medium values and, further, that they increase with optical depth into the cloud. The present observations indicate that the cloud structure is far more extensive than previously realized.
Craine Eric R.
Turnshek D. E.
Turnshek David A.
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