English

Fe-rich ejecta in the supernova remnant G352.7-0.1 with Suzaku

High Energy Astrophysical Phenomena 2015-06-22 v1

Abstract

In this work, we present results from a \sim201.6 ks observation of G352.7-0.1 by using the X-ray Imaging Spectrometer onboard {\it Suzaku} X-ray Observatory. The X-ray emission from the remnant is well described by two-temperature thermal models of non-equilibrium ionization with variable abundances with a column density of NHN_{\rm H} \sim 3.3×\times1022^{22} cm2^{-2}. The soft component is characterized by an electron temperature of kTekT_{\rm e} \sim 0.6 keV, an ionization time-scale of τ\tau \sim 3.4×\times1011^{11} cm3^{-3} s, and enhanced Si, S, Ar, and Ca abundances. The hard component has kTekT_{\rm e} \sim 4.3 keV, τ\tau \sim 8.8×\times109^{9} cm3^{-3} s, and enhanced Fe abundance. The elemental abundances of Si, S, Ar, Ca, and Fe are found to be significantly higher than the solar values that confirm the presence of ejecta. We detected strong Fe K-shell emission and determined its origin to be the ejecta for the first time. The detection of Fe ejecta with a lower ionization time-scale favor Type Ia origin for this remnant.

Keywords

Cite

@article{arxiv.1406.3470,
  title  = {Fe-rich ejecta in the supernova remnant G352.7-0.1 with Suzaku},
  author = {Aytap Sezer and Fatma Gok},
  journal= {arXiv preprint arXiv:1406.3470},
  year   = {2015}
}

Comments

5 pages, 2 figures and 2 tables, Accepted for publication in The Astrophysical Journal