搜索结果: 1-5 共查到“天文学 protoplanetary disk”相关记录5条 . 查询时间(0.109 秒)
ALMA reveals planet-forming potential of protoplanetary disk
ALMA planet-forming potential protoplanetary disk
2016/2/23
Astronomers struggle to understand how planets form in binary star systems. Early models suggested that the gravitational tug-of-war between two stellar bodies would send young planets into eccentric ...
Chemical evolution of a protoplanetary disk
accretion disks astrochemistry diff usion line:formation molecular processes
2011/10/13
In this paper we review recent progress in our understanding of the chemical evolution of protoplanetary disks. Current observational constraints and theoretical modeling on the chemical composition o...
Chemical abundances in the protoplanetary disk LV2 (Orion) - II: High dispersion VLT observations and microjet properties
ISM – abundances HII regions ISM:stars: pre-main-sequence protostars protoplan- etary disks
2011/9/29
Integral field spectroscopy of the LV2 proplyd is presented taken with the VLT/FLAMES Argus array at an angular resolution of 0.31x0.31 arcsec^2 and velocity resolutions down to 2 km/s per pixel. Foll...
Chemistry of a protoplanetary disk with grain settling and Lyman alpha radiation
astrochemistry circumstellar matter ISM abundances ISM: molecules planetary systems
2010/11/10
We present results from a model of the chemical evolution of protoplanetary disks. In our models we directly calculate the changing propagation and penetration of a high energy radiation field with Ly...
Residence Times of Particles in Diffusive Protoplanetary Disk Environments I. Vertical Motions
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/27
The chemical and physical evolution of primitive materials in protoplanetary disks are determined by the types of environments they are exposed to and their residence times within each environment.