Evidence for Polarized Solar Flare  Emission From Simultaneous Radio Observations in Australia and Vietnam

Nguyen Thi Thao; Nguyen Thi Phuong; Pierre Darriulat; Pham Ngoc Diep; Do Thi Hoai; Pham Tuyet Nhung; Pham Tuan Anh

doi:10.15625/0868-3166/25/1/5829

Author affiliations

Authors

Nguyen Thi Thao Vietnam National satellite center
Nguyen Thi Phuong VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam
Pierre Darriulat VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam
Pham Ngoc Diep VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam
Do Thi Hoai VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam
Pham Tuyet Nhung VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam
Pham Tuan Anh VATLY, VNSC, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/25/1/5829

Keywords:

radio astronomy, radio emission of the Sun, solar flares, polarization.

Abstract

A sample of 34 solar flares recorded in Ha Noi using the VATLY radio telescope between April 2012 and January 2014 at frequencies of 1415 and 1417.6 MHz is compared with the corresponding observations made at 1415 MHz by the solar observatory of Learmonth (Australia). While good overall agreement is obtained, a few differences are noted and studied in some detail. In particular, the use of different feeds in Ha Noi and Learmonth reveals a case of very large polarization of the flare emission.

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