Shock-induced PDR in the Herbig-Haro object HH 2

Details Shock-induced PDR in the Herbig-Haro object HH 2 Shock-induced PDR in the Herbig-Haro object HH 2

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...433..217l&link_type=abstract

Astronomy and Astrophysics, Volume 433, Issue 1, April I 2005, pp.217-227

Astronomy and Astrophysics

Astrophysics

9

Ism: Herbig-Haro Objects, Ism: Individual Objects: Hh 1/2, Ism: Jets And Outflows, Ism: Dust, Extinction, Stars: Formation

Scientific paper

We report mid-infrared (5{-}17 μ m) and SO, CO, {13CO} millimeter line observations of the protostellar jet HH 2 and the parental molecular cloud. We have detected for the first time mid-infrared emission along a protostellar jet. We find that the outflowing gas extends much further away than the Herbig-Haro object HH 2, showing direct evidence that downstream gas has been accelerated by previous outflow events. These gas layers appear to have been detached from the parental cloud, as they are distributed around a cavity, probably dug by protostellar outflow(s). SO emission is detected in shocked gas regions associated with outflows. The UV field produced in the strong shock region HH 2H-A has produced a low-excitation Photon-Dominated Region at the walls of the cavity, which is detected in the PAH emission bands and in the continuum between 5 and 17 μ m. This continuum arises from very small grains transiently heated by a FUV field G ≃ 20 G_0, which probably formed from evaporation of dust grain mantles in shocks.

Affiliated with

Also associated with

No associations

Rating

Shock-induced PDR in the Herbig-Haro object HH 2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Shock-induced PDR in the Herbig-Haro object HH 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock-induced PDR in the Herbig-Haro object HH 2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1451857