Title of article :
Upper limits for PH3 and H2S in Titan’s atmosphere from Cassini CIRS
Author/Authors :
Nixon، نويسنده , , Conor A. and Teanby، نويسنده , , Nicholas A. and Irwin، نويسنده , , Patrick G.J. and Hِrst، نويسنده , , Sarah M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
We have searched for the presence of simple P and S-bearing molecules in Titan’s atmosphere, by looking for the characteristic signatures of phosphine and hydrogen sulfide in infrared spectra obtained by Cassini CIRS. As a result we have placed the first upper limits on the stratospheric abundances, which are 1 ppb (PH3) and 330 ppb (H2S), at the 2-σ significance level.
Keywords :
atmospheres , Atmospheres , COMPOSITION , Saturn , Satellites , Titan , abundances
