On the instability time scale of the outflow associated with the HH 7-11 chain

Title:

On the instability time scale of the outflow associated with the HH 7-11 chain

Creator:

Silvestro, G., Busso, M., Persi, P., Robberto, M., and Scaltriti, F.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:7d97aa22-6fff-4141-95cd-17eca852f03e
uuid:7d97aa22-6fff-4141-95cd-17eca852f03e

Subject:

astronomical measurements, instability time scale, and HH 7-11 system

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We investigate the conditions for development of Kelvin-Helmoltz instabilities along a collimated wind flow from a low-mass star surrounded by a dense circumstellar disk, which could give rise to condensations with the characteristics of the chain of HH knots in the HH 7-11 system. The flow, using the observational parameters of the source, turns out to be clearly unstable. We give a simple estimate of the instability time scale, which turns out to be in good agreement with the characteristic time of development for outflows from low-mass young stellar objects.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

25-27

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 1987 Volume:63-70 | Number:69

Harvested from:

CDK

Metadata only:

false