Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1269..463o&link_type=abstract
THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG-2010. AIP Conference Proceedings, Volume 1
Astronomy and Astrophysics
Astronomy
Supernova Remnants, Galactic Centre, Interstellar Matter, X-Ray Sources (Astronomical), Supernova Remnants, Galactic Center, Bar, Circumnuclear Matter, And Bulge, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, X-Ray Sources, X-Ray Bursts
Scientific paper
We present the results of the Suzaku observation of a supernova remnant (SNR), G359.1-0.5 in the direction of the Galactic center region. No canonical plasma model, in either ionization equilibrium or under-ionization, can fit the spectrum. These model give bump-like data-residual at ~2.7 and ~3.5 keV. Strong radiative recombination continua can fit these bump-like residuals, and hence the plasma is likely in an over-ionized state. In fact, an over-ionized plasma model fit the over-all spectrum of this SNR. The ionization temperature (kTz = 0.77 keV) is significantly higher than the electron temperature (kTe = 0.29 keV). This highly over-ionized state reinforces us to revise the abundances from those estimated with the conventional plasma code.
Go Tsuru Takeshi
Koyama Katsuji
Masai Kuniaki
Ohnishi Takao
Ozawa Midori
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