Speaker
Dr
Jon Ramsey
(Universität Heidelberg, Zentrum für Astronomie, Insitut für Theoretische Astrophysik)
Description
It is generally expected that most low-mass young stars have a (time-variable) far-UV excess which is correlated with ongoing accretion. Although far-UV photons cannot ionise hydrogen, they are important for dissociating hydrogen, ionising carbon, as well as other processes (e.g., photoelectric heating of dust, pumping of molecular hydrogen). In this talk, I will present the results of radiation hydrodynamics models of protoplanetary disks that include far-UV irradiation plus chemistry. More importantly, I will focus on how far-UV photons alter the disk both thermally and structurally.
Primary author
Dr
Jon Ramsey
(Universität Heidelberg, Zentrum für Astronomie, Insitut für Theoretische Astrophysik)
Co-author
Prof.
C.P. Dullemond
(Universität Heidelberg, Zentrum für Astronomie, Institut für Theoretische Astrophysik)
