We present results of a test-study of the large-scale survey using the multi-beam receiver system recently installed on the 14 m telescope at Taeduk Radio Astronomy Observatory (TRAO). We have tested several modes of mapping, and found suitable (time-saving) mapping parameters of 'ON-SOURCE' = 8, 'OFF-SOURCE' = 1 when using 'RPT' = 3 as a position-switching mode. We observed 504 spectra towards the NGC 7538, a star forming molecular cloud in the transition of J = 1 - 0 of 12CO . From the Outer Galaxy Survey database (Heyer et al., 1998) we obtained 504 spectra for the same region. We compared integrated intensities, line profiles of two databases, and found that they are consistent to each other. From the intensity ratio of these two databases we also found that the value of forward spillover scattering of the TRAO telescope system is 0.58.

ABSTRACT
1. 서론
2. 관측 및 격자관측모드 점검
3. 관측결과 비교
4. 토의 및 결론
참고 문헌

• 이영웅(한국천문연구원) | Y. LEE (Korea Astronomy and Space Science Institute)
• 정재훈(한국천문연구원) | J. H. JUNG (Korea Astronomy and Space Science Institute)
• 강현우(한국천문연구원) | H. W. KANG (Korea Astronomy and Space Science Institute)
• 이창훈(한국천문연구원) | C. H. LEE (Korea Astronomy and Space Science Institute)
• 김현구(한국천문연구원) | H. G. KIM (Korea Astronomy and Space Science Institute)
• 임인성(한국천문연구원) | I. S. YIM (Korea Astronomy and Space Science Institute)
• 김봉규(한국천문연구원) | B. G. KIM (Korea Astronomy and Space Science Institute)