A WIDE-FIELD NARROWBAND OPTICAL SURVEY OF THE BRAID NEBULA STAR FORMATION REGION IN CYGNUS OB7

作者:Magakian Tigran Yu*; Nikogossian Elena H; Aspin Colin; Pyo Tae Soo; Khanzadyan Tigran; Movsessian Tigran; Smith Michael D; Mitchison Sharon; Davis Chris J; Beck Tracy L; Moriarty Schieven Gerald H
来源:Astronomical Journal, 2010, 139(3): 969-983.
DOI:10.1088/0004-6256/139/3/969

摘要

We study the population of Herbig-Haro (HH) flows and jets in an area of Cygnus OB7 designated the Braid Nebula star formation region. This complex forms part of the L 1003 dark cloud, and hosts two FU Orionis (FUor)-like objects as well as several other active young stars. To trace outflow activity and to relate both known and newly discovered flows to young star hosts we intercompare new, deep, narrowband H alpha and [S II] optical images taken on the Subaru 8 m Telescope on Mauna Kea, Hawaii. Our images show that there is considerable outflow and jet activity in this region suggesting the presence of an extensive young star population. We confirm that both of the FUor-like objects drive extensive HH flows and document further members of the flows in both objects. The L 1003 star formation complex is a highly kinematically active region with young stars in several different stages of evolution. We trace collimated outflows from numerous young stars although the origin of some HH objects remains elusive.