Abstract
view Abstract Citations (23) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS VLA observations of the eclipsing binary system AR Lacertae. Doiron, D. J. ; Mutel, R. L. Abstract Dual-frequency radio observations of the RS CVn binary system AR Lacertae are reported during two secondary eclipses. No clearly defined eclipse signature was observed during either eclipse at either 1.5 or 4.9 GHz. This implies a lower limit of 5×1011 cm for the source diameter if the source is located in the orbital plane. Significant circular polarization (2% - 8%) was observed on both days, with a helicity reversal between 1.5 and 4.9 GHz. This polarization signature is consistent with a gyro-synchrotron emission mechanism if the source becomes optically thick between 1.5 and 4.9 GHz. Using this emission model, the derived range of magnetic field strength is 5 ⪉ B ⪉ 80 G. Publication: The Astronomical Journal Pub Date: March 1984 DOI: 10.1086/113533 Bibcode: 1984AJ.....89..430D Keywords: Bremsstrahlung; Circular Polarization; Eclipsing Binary Stars; Light Curve; Radio Astronomy; Stellar Radiation; Synchrotron Radiation; X Ray Astronomy; Astrophysics full text sources ADS | data products SIMBAD (1)
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