Blowout from IC 1396N: The Emergence of Herbig-Haro Flows from a Cloud Core

Details Blowout from IC 1396N: The Emergence of Herbig-Haro Flows from a Cloud Core Blowout from IC 1396N: The Emergence of Herbig-Haro Flows from a Cloud Core

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...593l..47r&link_type=abstract

The Astrophysical Journal, Volume 593, Issue 1, pp. L47-L50.

Astronomy and Astrophysics

Astronomy

17

Ism: Clouds, Ism: Herbig-Haro Objects, Ism: Jets And Outflows, Stars: Formation, Stars: Pre-Main-Sequence

Scientific paper

We have identified a major Herbig-Haro flow, HH 777, that is bursting out of the IC 1396N cometary cloud core. Near- and mid-infrared images reveal a very red object embedded in the center of the core, located on the symmetry axis of the large HH 777 flow, suggesting that this is likely the driving source. The projected separation of the working surface from the source is 0.6 pc. Additionally, 0.4 pc to the east of the source and on the flow axis, there is a faint, previously known HH object (HH 594) that may be part of the counterflow. It thus appears that we are seeing a blowout of a parsec-scale flow into the surrounding H II region. We study numerical simulations of a jet breaking out of a neutral cloud into a photoionized medium, and we reproduce the main features of the HH 777 flow.

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