The XMM-Newton X-ray emission of the SNR N120 in the LMC

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dc.creatorReyes-Iturbide, Jorge
dc.creatorRosado, Margarita
dc.creatorVelazquez, Pablo F.
dc.date2009-01-14
dc.date.accessioned2026-07-07T12:32:01Z
dc.date.available2026-07-07T12:32:01Z
dc.descriptionWe present new XMM-Newton observations of the supernova remnant N120 in the LMC, and numerical simulations on the evolution of this supernova remnant which we compare with the X-ray observations. The supernova remnant N120, together with several HII regions, forms a large nebular complex5D (also called N120) whose shape resembles a semicircular ring. From the XMM-Newton data we generate images and spectra of this remnant in the energy band between 0.2 to 2.0 keV. The images show that the X-ray emission is brighter towards the east (i.e., towards the rim of the large nebular complex). The EPIC/MOS1 and MOS2 data reveal a thermal spectrum in soft X-rays. 2D axisymmetric numerical simulations with the Yguazú-a code were carried out assuming that the remnant is expanding into an inhomogeneous ISM with an exponential density gradient and showing that thermal conduction effects are negligible. Simulated X-ray emission maps were obtained from the numerical simulations in order to compare them with the observations. We find good agreement between the XMM-Newton data, previous optical kinematic data, and the numerical simulations; the simulations reproduce the observed X-ray luminosity and surface brightness distribution. We have also detected more extended diffuse X-ray emission probably due to the N120 large HII complex or superbubble.
dc.description29 pages, 10 figures, published in AJ
dc.identifierhttps://arxiv.org/abs/0901.2146
dc.identifierhttp://arxiv.org/abs/0901.2146
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216645
dc.subjectHigh Energy Astrophysical Phenomena
dc.titleThe XMM-Newton X-ray emission of the SNR N120 in the LMC
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