Molecular clouds at the eastern edge of radio nebula W50

• DOI: 10.48550/arxiv.2301.13333
• Publication Date: 2023-01-01
• Authors: Haruka Sakemi; Mami Machida; H. Yamamoto; Kengo Tachihara
• Keywords: Hydrogen molecule

Microquasar SS 433 located at the geometric center of radio nebula W50 is a suitable source for investigating physical process how galactic jets affect surrounding interstellar medium (ISM). Previous studies have searched evidence interaction between jet and ISM, such as neutral hydrogen gas molecular clouds; however, it still unclear which ISM interacts with jet. We looked new clouds that possibly interact terminal eastern using Nobeyama 45-m telescope Atacama Submillimeter Telescope Experiment (ASTE). identified two clouds, comprising many small clumps, in velocity range 30.1--36.5 km s$^{-1}$ first time. These complex structures, one them has density gradient toward 433. Although difficult to conclude relation 433/W50 system, there possibility structure constructed by swept up tiny clumps drifting surroundings formed we this study.