Search Publications

Identification and period investigation of pulsation variable star UY Camelopardalis, an RR Lyrae star in binary system

Li, Lin-Jia; Qian, Sheng-Bang; Voloshina, Irina +3 more

We present photometric measurements of the short period variable star UY Cam, which has been classified as a δ Scuti or c-type RR Lyrae (RRc) variable in different catalogs. Based on the analyses on Fourier coefficients and (NUV - V)₀, we find that UY Cam is probably an RRc star. We obtain 58 new times of light maximum for UY Cam based …

Detection of the thermal component in GRB 160107A

Yamaoka, Kazutaka; Yoshida, Atsumasa; Sakamoto, Takanori +14 more

We present the detection of a blackbody component in gamma-ray burst GRB 160107A emission by using the combined spectral data of the CALET Gamma-ray Burst Monitor (CGBM) and the MAXI Gas Slit Camera (GSC). MAXI/GSC detected the emission ∼45 s prior to the main burst episode observed by the CGBM. The MAXI/GSC and the CGBM spectrum of this prior emi…

Searches for H₂O masers toward narrow-line Seyfert 1 galaxies

Hagiwara, Yoshiaki; Doi, Akihiro; Hachisuka, Kazuya +1 more

We present searches for 22 GHz H₂O masers toward 36 narrow-line Seyfert 1 galaxies (NLS1s), selected from known NLS1s with v_sys ≲ 41000 km s^-1. Out of the 36 NLS1s in our sample, 11 have been first surveyed in our observations, while the observations of other NLS1s were previously reported in literature. In our sur…