Multifrequency Methanol Maser Observations with the Ibaraki 32-m Radio Telescopes
Sahlan Ramadhan(1), Yukika Murata(1), Ren Moriizumi(1), Yoshihiro Tanabe(2), Yoshinori Yonekura(1)

(1)Ibaraki University
(2)Yamaguchi University

Abstract

Methanol maser observation is one of the ways to study the formation processes of massive stars. Ibaraki University, using its Hitachi-32m and Takahagi-32m radio telescopes, routinely conducting daily monitoring observation of the variability of Class-II methanol masers. Hitachi-32m is observing at frequencies of 6.67 and 12.18 GHz, while Takahagi-32m is observing at frequencies of 19.97 and 23.12 GHz. Recently, Takahagi-32m detected rare emission from the object ID: 133.94+1.04 [other names: IRAS 02232+6138, also known as W3(OH)]. This report will discuss the correlation between these maser frequencies and their implications on star forming regions.

Keywords: radio astronomy, methanol maser, star forming region

Topic: Stellar Physics