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A Detailed Observation of a LMC SNR, DEM L241, with XMM-Newton

  • Aya Bamba (a1), Masaru Ueno (a2), Hiroshi Nakajima (a3), Koji Mori (a4) and Katsuji Koyama (a3)...

Abstract

We report on an XMM-Newton observation of the supernova remnant (SNR) DEM L241 in the Large Magellanic Cloud. In the soft band image, the emission shows an elongated structure, like a killifish (Head and Tail), with a central point source, named as XMMU J053559.3–673509 (Eye). The Eye's spectrum is well reproduced with a power-law model. The source has neither significant coherent pulsations nor time variabilities. Its luminosity and spectrum remind us that the source might be a pulsar and/or pulsar wind nebula in DEM L241. The spectra of Head and Tail are well reproduced by a non-equilibrium ionization plasma model with over-abundant Ne and under-abundant Fe, suggesting that the progenitor of DEM L241 is a very massive star.

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Keywords

A Detailed Observation of a LMC SNR, DEM L241, with XMM-Newton

  • Aya Bamba (a1), Masaru Ueno (a2), Hiroshi Nakajima (a3), Koji Mori (a4) and Katsuji Koyama (a3)...

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