HH2 (Herbig Haro object)

Left HH1 and right HH2. In between there is an invisible protostar .

HH2 is a protostellar jet and is cataloged as a Herbig-Haro object . Because the object is part of the Orion Nebula , it is also known as M42-HH2 . The jet was identified as the Herbig Haro property by a team led by Cantó in 1980. In 1988 two knots were found. Furthermore, shocks with speeds of 20 km / s to 180 km / s were identified in the object 2003. HH2 is only one light year away from Herbig-Haro object HH1 , which arise from a common protostar. In total, HH2 is 1500 light years from Earth.

Individual evidence

↑ B. Lefloch, J. Cernicharo, S. Cabrit, D. Cesarsky: Shock-induced PDR in the Herbig-Haro object HH 2 . In: Astronomy & Astrophysics . No. 2093 , January 8, 2005 ( archives-ouvertes.fr ).
^ CA Clayton, J. Meaburn: Volumetric imagery of the Herbig-Haro object M42-HH2 . In: Monthly Notices of the Royal Astronomical Society . doi : 10.1093 / mnras / 269.2.403 ( paperity.org ).
^ Herbig-Haro objects HH1 and HH2, gas jets in Orion. Accessed December 20, 2017 .

[1] B. Lefloch, J. Cernicharo, S. Cabrit, D. Cesarsky: Shock-induced PDR in the Herbig-Haro object HH 2 . In: Astronomy & Astrophysics . No. 2093 , January 8, 2005 ( archives-ouvertes.fr ).

[2] CA Clayton, J. Meaburn: Volumetric imagery of the Herbig-Haro object M42-HH2 . In: Monthly Notices of the Royal Astronomical Society . doi : 10.1093 / mnras / 269.2.403 ( paperity.org ).

[3] Herbig-Haro objects HH1 and HH2, gas jets in Orion. Accessed December 20, 2017 .