Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apjs..106..563f&link_type=abstract
Astrophysical Journal Supplement v.106, p.563
Astronomy and Astrophysics
Astronomy
21
Catalogs, Infrared: Ism: Lines And Bands, Line: Identification, Ism: Supernova Remnants
Scientific paper
Optical spectra of two filaments in the Cygnus Loop are used to investigate the faint optical line spectra of supernova remnants (SNRs). Data on a bright, previously studied filament in the remnant's northeast rim (NGC 6992) provide accurate relative line strengths for many faint emission lines present in shocked, low-density interstellar gas. Spectra of a particularly strong [O III] λλ4959, 5007 filament {I([O m])/I(Hβ≃45} reveal both a high [O III] electron temperature (60000 ± 3000 K) and many high-ionization lines, including [Ar IV], [Ar V], [Ne IV], [Ca V, [Cl III], [Fe VI], [Fe VII], and [Fe X]. Taken together, these data reveal 16 new emission lines not previously seen in any SNR, plus an additional 11 emission lines seen only once before in various remnants.
These new spectral results are incorporated into a comprehensive catalog of over 250 emission lines identified in Galactic and Magellanic Cloud SNRs within the wavelength range 900-12000 Å, and are complete through 1995. Along with accurate laboratory wavelengths and commonly observed relative line intensity information, this tabulation lists individual remnants and references for less commonly observed lines. UV, optical and lines identified in SNRs organized by ionization stage, and a reference list of observational papers sorted by remnant and wavelength regime are also given.
Fesen Robert A.
Hurford Alan P.
No associations
LandOfFree
A Catalog of Ultraviolet, Optical, and Near-Infrared Emission Lines Identified in Supernova Remnants does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Catalog of Ultraviolet, Optical, and Near-Infrared Emission Lines Identified in Supernova Remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Catalog of Ultraviolet, Optical, and Near-Infrared Emission Lines Identified in Supernova Remnants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1212913