Variable Stellar Jets

Data: 
20/04/2018 - 14:30 - 15:30
Local: 
Auditório 2

Variable Stellar Jets

Alejandro Raga -  UNAM/México
 


HST observations of Herbig-Haro jets now cover a time span of over 20 years. These observations give the proper motion velocities (and their time derivatives), as well as the time-evolution of the line intensities and ratios of a few HH objects. Some of these results can be successfully explained in terms of models of outflows with a time-dependent ejection velocity. This is the first success that has been obtained in observing and interpreting the time-dependence of the emitting structures of Herbig-Haro objects.

 

Obs: o café será servido na recepção do departamento (na frente da secretaria) após o seminário.