The optical polarization of Ton 1542

Details The optical polarization of Ton 1542 The optical polarization of Ton 1542

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....54..627c&link_type=abstract

Astronomy and Astrophysics, vol. 54, no. 2, Jan. 1977, p. 627-629. In French.

Astronomy and Astrophysics

Astrophysics

4

Optical Polarization, Quasars, Seyfert Galaxies, Polarimetry, Synchrotron Radiation, Ubv Spectra

Scientific paper

Ton 1542 has recently been identified (Lelievre and Vanderriest, 1976) as a quasar nucleus in an extended type I Seyfert galaxy. Polarimetry of Ton 1542 was carried out in total light at the Observatory of Lyon on two days with the following results: for April 12, 1975, p equals 2.9 per cent plus or minus 0.6 per cent and theta equals 72 degrees plus or minus 2.8 degrees; for June 8, 1975, p equals 4.0 per cent plus or minus 1.0 per cent and theta equals 35 degrees plus or minus 3.5 degrees. For the quasar nucleus, after subtraction of the galaxy component, polarization attains p equals 6.0 per cent plus or minus 1.6 per cent, a result which can be explained by synchrotron emission from the nucleus.

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