Evidence for an intra - binary radio emission region in theAlgol system
نویسندگان
چکیده
We present radio interferometric observations of the Algol-type binary system V505 Sagitarii made with the ATNF Compact Array at 6 cm and 3.6 cm over one orbital cycle (1.18 days). We obtained a strong detection of the source (1.5 mJy at 6 cm and 1.4 mJy at 3.6 cm). The radio ux level shows a clear modulation with evidence of eclipses of the emission region at both conjunctions of the binary which may indicate the existence of an intra-binary region of activity. This has important consequences for the details of coronal formation and eld interaction in active close binary stars.
منابع مشابه
Eclipsing behaviour of the radio emission in the Algolsystem V 505
We present radio interferometric observations of the EA2 Algol-type binary system V505 Sagitarii made with the ATNF Compact Array at 6 cm and 3.6 cm over one orbital cycle (1.18 days). We obtained a strong detection of the source (1.5 mJy at 6 cm and 1.4 mJy at 3.6 cm) and derive a brightness temperature for the emitting region of T b 2.7 10 9 K, a magnetic eld strength of 17 G < B < 170 G and ...
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