The magnetic field in LYNDS 1457: Multiband photopolarimetry

Details The magnetic field in LYNDS 1457: Multiband photopolarimetry The magnetic field in LYNDS 1457: Multiband photopolarimetry

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...443l..49a&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 443, no. 1, p. L49-L52

Astronomy and Astrophysics

Astrophysics

7

Astronomical Polarimetry, Interstellar Magnetic Fields, Molecular Clouds, Optical Polarization, Wavelengths, Data Reduction, Polarization Characteristics, Stellar Luminosity

Scientific paper

We have performed multiband photopolarimetry toward stars behind the molecular cloud L1457 (MBM 12). This cloud is the nearest known molecular cloud (65 pc) and thought to be contained within the local 'hot bubble.' The polarization shows a regular structure, indicating that the cloud is threaded by an ordered magnetic field. The wavelength dependence of the polarization seems to indicate that the grains in L1457 have higher indices of refraction than normal for interstellar clouds. However, the wavelength of maximum polarization indicates that their size distribution is close to normal.

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