Detection of a Violent Line Profile Variation of the 28SiO v = 2, J = 3-2 Maser Emission toward Orion KL IRc2
作者： Se-Hyung Cho , Hyun-Soo Chung , Hyo-Ryoung Kim , Hyun-Goo Kim , Duk-Gyoo Roh
DOI: 10.1086/300792
关键词: Variation (astronomy) 、 Line (formation) 、 Radio astronomy observatory 、 Radio telescope 、 Time variations 、 Astronomy 、 Maser 、 Astrophysics 、 Young stellar object 、 Physics
摘要: Time monitoring observations of the 28SiO v = 0–2, J 3–2 transitions were performed on an annual basis from 1995 to 1998 with 14 m radio telescope at Taeduk Radio Astronomy Observatory toward Orion KL IRc2 containing 1, 2–1 maser emission. On 1996 March a violent line profile variation three spikes was detected in high-velocity component SiO 2, maser. The strongest spike, VLSR 20.5 km s-1, constituted new appearance. We suggest that is probably result time variations bipolar outflows young stellar object region. In addition, our observational results show most active.
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