Methanol Emission At 84.5 GHz in Infrared Dark Clouds
We report observations of methanol emission at 84-GHz toward 32 infrared dark cloud (IRDC) sources at various evolutionary stages. These objects do not overlap with any previously observed 84-GHz sources, making all our detections novel. Data were obtained using the 20-meter radiotelescope located in Onsala, Sweden, during 2019-2020. Among these 32 sources, the 5−1-40 E methanol emission was detected in 24. Based on our findings, several candidates for class I methabol masers are identified. Additionally, we compare the 84GHz observations with previous 44-GHz measurements toward the same sources, revealing a correlation between emission at both frequencies and notable similarities in their spectral profiles.
Authors
- Н. Н. Шахворостова (ORCID: https://orcid.org/0000-0002-6180-9474)
- P. S. Sozinova
Institutions
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences (RU)
- Lomonosov Moscow State University (RU)
- Astro Space Center (RU)
- Moscow State University (TJ)
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.15826/b978-5-7996-3986-0.33
- Primary Topic
- Astrophysics and Star Formation Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00