Polarization of compact sources in the galactic center

Details Polarization of compact sources in the galactic center Polarization of compact sources in the galactic center

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...263..672l&link_type=abstract

Astrophysical Journal, Part 1, vol. 263, Dec. 15, 1982, p. 672-676. NSF-supported research.

Astronomy and Astrophysics

Astrophysics

22

Galactic Nuclei, Milky Way Galaxy, Near Infrared Radiation, Optical Polarization, Polarimetry, Cosmic Dust, Optical Thickness, Radiation Pressure, Stellar Luminosity

Scientific paper

Near-IR polarimetry is reported for 15 compact sources within 100 arcsec (5 pc) of the galactic center; the results support the association of all 15 with the center. No intrinsic polarization stronger than 2% at 2 microns is detected from source 16. The polarization at 11.5 microns is probably due to emission by aligned grains in optically thin dust clouds surrounding luminous stars; these grains are aligned by streaming driven by radiation pressure. The stars that power at least three of the 11.5 micron sources can be observed directly in the near-IR.

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