C IV Emission-line Detection of the Supernova Remnant RCW 114

Abstract

We report the detection of the C IV 1548, 1551 emission line in the region of the RCW 114 nebula using the FIMS/SPEAR data. The observed C IV line intensity indicates that RCW 114 is much closer to us than WR 90, a Wolf-Rayet star that was thought to be associated with RCW 114 in some of the previous studies. We also found the existence of a small H I bubble centered on WR 90, with a different local standard of rest velocity range from that of the large H I bubble which was identified previously as related to RCW 114. These findings imply that the RCW 114 nebula is an old supernova remnant which is not associated with WR 90. Additionally, the global morphologies of the C IV, H-alpha, and H I emissions show that RCW 114 has evolved in a non-uniform interstellar medium.

7 pages, 7 figures, accepted for publication in The ApJ

References in corpus (7)

• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• The Southern Galactic Plane Survey: HI Observations and Analysis
• The distribution of the ISM in the Milky Way A three-dimensional large-scale model
• The SPEAR Instrument and On-Orbit Performance
• The Spectroscopy of Plasma Evolution from Astrophysical Radiation Mission
• SPEAR Far Ultraviolet Spectral Images of the Cygnus Loop
• Far Ultraviolet Spectral Images of the Vela Supernova Remnant

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