Work

Methanol Emission At 84.5 GHz in Infrared Dark Clouds

Year: 2025

Type: conference-paper

Abstract: 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.

Source: Physics of Space: All-Russian Student Scientific Conference with International Participation

DOI: 10.15826/b978-5-7996-3986-0.33

Authors: P. S. Sozinova, N. N. Shakhvorostova

Institutions: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Lomonosov Moscow State University, Astro Space Center

Language: English

Topic: Astrophysics and Star Formation Studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

SDG: Climate action

Open Access status: green

OpenAlex ID: W4412585096