Large Proper-Motion Infrared [Fe II] Emission-Line Features in GGD 37
Abstract
We report the detection of proper motions in [Fe II] 1.644 μm emission among the southeasternmost features in the Herbig-Haro object complex GGD 37. Imaging observations were made over a period of 5 yr, at epochs 1993.67, 1996.71, and 1998.68, that reveal proper-motion velocities of 400+/-200 km s-1 at GGD 37:W2 and 850+/-200 km s-1 at a newly identified object, designated GGD 37:RWPF 1. We believe the proper-motion velocity of GGD 37:RWPF 1 is the highest found to date for a Herbig-Haro object. The direction of GGD 37:RWPF 1's proper motion is almost due west, away from the nearby young stellar object complex in Cep A East. GGD 37:W2's direction of proper motion is north/northwest, which does not lead back to any of the compact objects in Cep A East.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 2000
- DOI:
- 10.1086/312427
- Bibcode:
- 2000ApJ...528L.115R
- Keywords:
-
- INFRARED: GENERAL;
- ISM: HERBIG-HARO OBJECTS;
- ISM: INDIVIDUAL: ALPHANUMERIC: GGD 37;
- ISM: JETS AND OUTFLOWS;
- STARS: FORMATION;
- Infrared: General;
- ISM: Herbig-Haro Objects;
- ISM: Individual: Alphanumeric: GGD 37;
- ISM: Jets and Outflows;
- Stars: Formation