open access

https://doi.org/10.14943/lowtemsci.78.219

https://hdl.handle.net/2115/77786

Organic molecules in starless and star-forming cores

日本語

radio observation

2020-03-24

低温科学第78巻編集委員会

低温科学

78

219-227

The formation of various interstellar molecules takes place in so-called molecular clouds, where interstellar ultraviolet(UV)radiationisshieldedbythemselves.Becausestarsareformedininterstellarclouds,discoveringwhat kind of species are formed and how they are formed is a fundamental and important step in understanding the chemical origin of the Solar System. Owing to sensitivity improvements and new techniques in spectroscopic observations, it is possible to detect COMs as well as various rare isotopic species, even in cold starless clouds. Observational studies of molecules in cold molecular clouds, where environmental conditions are relatively easy to define,haveevenenabledustodiscoverhowthesespeciesareformed.However,thesestudieshavealsoenabledusto recognizethatthereisasignificantlackofknowledgeinmolecularscience.Inthispaper,recentobservationalresults of various organic molecules at the molecular cloud scale are summarized along with the current issues we face in understanding their formation mechanisms.

紀要論文

Version of Record

1880-7593