Detection of large infrared polarization from L 1551 IRS 5

Details Detection of large infrared polarization from L 1551 IRS 5 Detection of large infrared polarization from L 1551 IRS 5

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119l...1n&link_type=abstract

Astronomy and Astrophysics, vol. 119, no. 1, Mar. 1983, p. L1, L2. Ministry of Education, Science, and Culture of Japan

Astronomy and Astrophysics

Astronomy

57

Infrared Stars, Molecular Clouds, Near Infrared Radiation, Polarized Electromagnetic Radiation, Stellar Evolution, T Tauri Stars, Interstellar Matter, Molecular Flow, Nebulae, Polarization Characteristics, Radio Sources (Astronomy), Stellar Radiation, Stellar Winds, Taurus Constellation

Scientific paper

Near-infrared polarization of L 1551 IRS 5 gas measured: 28 + or - 2 percent at H(1.6 microns), 24.0 + or - 0.7 percent at K(2.2 microns), and 19 + or - 2 percent at L-prime(3.8 microns). The polarization vectors are almost perpendicular to the major axis of the elongated structure of radio emission centered on IRS 5. These large degrees of polarization cannot be interpreted by preferential extinction due to aligned grains in the vicinity of the object; the scattering by dust grains in bipolar nebulae or a similar configuration is believed to cause the polarization. A structure of gas flow around IRS 5 is also discussed.

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