tag:blogger.com,1999:blog-2084233177818980054.post3764828599988828369..comments2023-07-05T18:34:37.601+05:45Comments on SCIENCE TO SOCIETY: Polycyclic Aromatic Hydrocarbons-1Basant Girihttp://www.blogger.com/profile/10255267977621132303noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2084233177818980054.post-33988773807715354942008-02-26T06:15:00.000+05:452008-02-26T06:15:00.000+05:45Nabin,I am not that familiar to PAHs in interstell...Nabin,<BR/><BR/>I am not that familiar to PAHs in interstellar space. They are found there and they absorb IR and UV radiation. This is a matter of concern and interest to astrochemists and other researchers.<BR/><BR/>PAHs are found in Carbon rich circumstelar shells. Origin of interstellar is unknown. Various mechanisms have tried to explain it.<BR/>1) ion-molecule reactions or organometallic catalysis in the gas phase in cold molecular clouds<BR/>2) surface catalysis on interstellar grains<BR/>3) photochemical processes in interstellar ices<BR/>4) synthesis during the ejection phase of red giant.Basant Girihttps://www.blogger.com/profile/10255267977621132303noreply@blogger.comtag:blogger.com,1999:blog-2084233177818980054.post-38787019990213973332008-02-24T10:00:00.000+05:452008-02-24T10:00:00.000+05:45I am not chemistry major hai!PAH's are pollutants?...I am not chemistry major hai!<BR/>PAH's are pollutants?<BR/>May be true for earth, <BR/>please write about PAH's found in interstellar medium too.<BR/><A HREF="http://ajabgajab.blogspot.com" REL="nofollow">nabin</A><BR/><A HREF="http://nabinkm.blogspot.com" REL="nofollow">My blog</A>NKMhttps://www.blogger.com/profile/13733726381927151064noreply@blogger.com