Unusual objects in the spiral galaxy NGC 6946статья
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Аннотация:Abstract.
Several strange objects in the spiral galaxy NGC 6946 are de-
scribed. One of these objects is the giant stellar complex noted long ago; we
suggested that its sharp semicircular western edge is a result of the ram pres-
sure, arising owing to motion of this complex through the H I halo of NGC 6946.
We found another enigmatic object, proposing for it the name Red Ellipse; it
is located within the isolated Northern arm of the galaxy. The enormous size
of this Ellipse, and especially the spectroscopic data obtained recently with the
6-m reflector of the Special Astrophysical Observatory, made us to conclude
that this object could not be a supernova remnant. The excellent image of
NGC 6946 obtained with the Subaru 8-m telescope also shows a strange region
with several regular crossed dark lanes, connected with a black spot