4–8 Aug 2014
Niels Bohr Institute
Europe/Copenhagen timezone

The Effects of Far-UV Irradiation on the Thermal Structure of Disks

7 Aug 2014, 10:30
30m
Auditorium A (Niels Bohr Institute)

Auditorium A

Niels Bohr Institute

Blegdamsvej 17 Copenhagen
Workshop Main Programme Thursday Morning

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)

Presentation materials