Author/Authors :
Olkin، نويسنده , , C.B. and Young، نويسنده , , L.A. and Borncamp، نويسنده , , D. and Pickles، نويسنده , , A. and Sicardy، نويسنده , , B. and Assafin، نويسنده , , M. and Bianco، نويسنده , , F.B. and Buie، نويسنده , , M.W. and de Oliveira، نويسنده , , A. Dias and Gillon، نويسنده , , M. and French، نويسنده , , R.G. and Ramos Gomes Jr.، نويسنده , , A. and Jehin، نويسنده , , E. and Morales، نويسنده , , N. and Opitom، نويسنده , , C. and ، نويسنده ,
Abstract :
Combining stellar occultation observations probing Pluto’s atmosphere from 1988 to 2013, and models of energy balance between Pluto’s surface and atmosphere, we find the preferred models are consistent with Pluto retaining a collisional atmosphere throughout its 248-year orbit. The occultation results show an increasing atmospheric pressure with time in the current epoch, a trend present only in models with a high thermal inertia and a permanent N2 ice cap at Pluto’s north rotational pole.
Keywords :
Pluto , Atmosphere , Surface , Atmospheres , Evolution , occultations , Pluto
