Discovery of intrinsic polarization in the apparent light of globular cluster red giant stars

Details Discovery of intrinsic polarization in the apparent light of globular cluster red giant stars Discovery of intrinsic polarization in the apparent light of globular cluster red giant stars

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..480w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, April 1984, p. 480-486. Research supported by the General Research Fund, the Ame

Astronomy and Astrophysics

Astronomy

9

Globular Clusters, Linear Polarization, Red Giant Stars, Astronomical Catalogs, Light Scattering, Mass To Light Ratios, Photosphere, Stellar Envelopes

Scientific paper

Intrinsic polarizations have been measured for 15 out of 39 red giant members in the globular clusters NGC 5272 (M3) and NGC 6205 (M13). The intrinsic linear polarization values are all less than 2 percent. Possible mechanisms for producing the observed amounts of polarization are discussed in terms of circumstellar scattering from dust or molecules in the circumstellar region and from photospheric effects such as surface magnetic fields.

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