Photoevaporation of Protoplanetary Disks

Autor:	Ayano Komaki, Riouhei Nakatani, Naoki Yoshida
Rok vydání:	2020
Předmět:	Space and Planetary Science Astronomy and Astrophysics
Zdroj:	Proceedings of the International Astronomical Union. 16:294-299
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921322001296
Popis:	Photoelectric effect of dust grains by UV radiation is an important process for disk heating, but as a disk evolves, the amount of dust grains decreases. Photoeaporation is a disk dispersal process, which is caused by high-energy radiation. We perform a set of photoevaporation simulations solving hydrodynamics with radiative transfer and non-equilibrium chemistry in a self-consistent way. We run a series of simulations with varying the dust-to-gas mass ratio in a range . We show that H2 pumping and X-ray heating mainly contribute to the disk heating in case of and photoelectric effect mainly heats the gas in cases. The mass-loss profile changes significantly with respect to the main heating process. The outer disk is more efficiently dispersed when photoelectric effect is the main heating source.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2eb2289a4eb9dd127e8b44b2e6d7a9ba https://doi.org/10.1017/s1743921322001296 Zobrazit plný text záznamu