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Filament L1482 in the California molecular cloud
Da-Lei Li, Jarken Esimbek, Jian-Jun Zhou +4
Aims. The process of gravitational fragmentation in the L1482 molecular filament of the California molecular cloud is studied by combining several complementary observations and ph…
H2CO and H110α observations towards NH3 sources
Ye Yuan, Jarken Esimbek, Jian-Jun Zhou +3
We observed the H2CO(110-111) absorption lines and H110α radio recombination lines (RRL) toward 180 NH3 sources using the Nanshan 25-m radio telescope. In our observation, 138 sour…
The comparison of H2CO(110-111), C18O(1-0) and continuum towards molecular clouds
Xin. Di. Tang, Jarken Esimbek, Jian Jun Zhou +2
We present large scale observations of C18O(1-0) towards four massive star forming regions for MON R2, S156, DR17/L906 and M17/M18. The transitions of H2CO(110-111), C18O(1-0) and…
Formaldehyde and H110a observations towards 6.7 GHz methanol maser sources
Daniel. Okoh, Jarken. Esimbek, Jian. Jun. Zhou +4
Intriguing work on observations of 4.83 GHz formaldehyde (H2CO) absorptions and 4.87 GHz H110a radio recombination lines (RRLs) towards 6.7 GHz methanol (CH3OH) maser sources is pr…