Search for a radio counterpart of MAXI J1816-195
ATel #15437; M. Akimoto, K. Fujisawa, K. Niinuma (Yamaguchi University), W. Iwakiri (Chuo University)
on 15 Jun 2022; 23:56 UT
Credential Certification: Kenta Fujisawa (kenta@yamaguchi-u.ac.jp)
Subjects: Radio, Binary, Neutron Star, Pulsar
We attempted to detect the radio emission of a new accreting millisecond X-ray pulsar MAXI J1816-195 (ATel #15418, #15421, #15425). Observations were made by the Yamaguchi Interferometer on June 10, 2022 (MJD 59740) at 13:26 - 19:35 UT. The observations were made at C band (center frequency of 6856 MHz) and X band (8448 MHz) simultaneously. The flux density of MAXI J1816-195 was measured by comparing the flux density of a nearby AGN J1825-1718 (230 mJy is assumed). The integration time of one scan of MAXI J1816-195 was 3300 seconds. As a result, MAXI J1816-195 was below the detection limit. The upper limits of 5 sigma were 1.5 mJy in C band and 1.9 mJy in X band, respectively.
