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Title: DETECTION OF THE COMPRESSED PRIMARY STELLAR WIND IN {eta} CARINAE

A series of three Hubble Space Telescope/Space Telescope Imaging Spectrograph spectroscopic mappings, spaced approximately one year apart, reveal three partial arcs in [Fe II] and [Ni II] emissions moving outward from {eta} Carinae. We identify these arcs with the shell-like structures, seen in the three-dimensional hydrodynamical simulations, formed by compression of the primary wind by the secondary wind during periastron passages.
Authors:
; ;  [1] ; ;  [2]
  1. Astrophysics Science Division, Code 667, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
  2. CRESST and X-ray Astrophysics Laboratory, Code 662, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
Publication Date:
OSTI Identifier:
22136602
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 773; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COMPRESSION; HYDRODYNAMIC MODEL; SPECTROSCOPY; STELLAR WINDS; TELESCOPES