Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations

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Aims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant (SNR) G306.3-0.9 in detail to obtain constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We used comb...

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Autores principales:	Combi, J.A., García, F., Suárez, A.E., Luque-Escamilla, P.L., Paron, S., Miceli, M.
Formato:	JOUR
Materias:	0.9 Infrared: ISM ISM: individual objects: SNR G306.3 ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X-rays: ISM Calcium Chemical analysis Electromagnetic wave emission Geometry Ionization Signal to noise ratio Spectrum analysis ISM: individual objects X rays: ISM Supernovae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00046361_v592_n_p_Combi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_00046361_v592_n_p_Combi2023-10-03T14:00:59Z Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations Combi, J.A. García, F. Suárez, A.E. Luque-Escamilla, P.L. Paron, S. Miceli, M. 0.9 Infrared: ISM ISM: individual objects: SNR G306.3 ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X-rays: ISM Calcium Chemical analysis Electromagnetic wave emission Geometry Ionization Signal to noise ratio Spectrum analysis Infrared: ISM ISM: individual objects ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X rays: ISM Supernovae Aims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant (SNR) G306.3-0.9 in detail to obtain constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We used combined data from XMM-Newton and Chandra observatories to study the X-ray morphology of G306.3-0.9 in detail. A spatially resolved spectral analysis was used to obtain physical and geometrical parameters of different regions of the remnant. Spitzer infrared observations, available in the archive, were also used to constrain the progenitor supernova and study the environment in which the remnant evolved. Results. The X-ray morphology of the remnant displays a non-uniform structure of semi-circular appearance, with a bright southwest region and very weak or almost negligible X-ray emission in its northern part. These results indicate that the remnant is propagating in a non-uniform environment as the shock fronts are encountering a high-density medium, where enhanced infrared emission is detected. The X-ray spectral analysis of the selected regions shows distinct emission-line features of several metal elements, confirming the thermal origin of the emission. The X-ray spectra are well represented by a combination of two absorbed thermal plasma models: one in equilibrium ionization (VAPEC) with a mean temperature of ∼0.19 keV, and another out of equilibrium ionization (VNEI) at a higher temperature of ∼1.1 or 1.6-1.9 keV. For regions located in the northeast, central, and southwest part of the SNR, we found elevated abundances of Si, S, Ar, Ca, and Fe, typical of ejecta material. The outer regions located northwest and south show values of the abundances above solar but lower than to those found in the central regions. This suggests that the composition of the emitting outer parts of the SNR is a combination of ejecta and shocked material of the interstellar medium. The comparison between the S/Si, Ar/Si, and Ca/Si abundances ratios (1.75, 1.27, and 2.72 in the central region, respectively), favor a Type Ia progenitor for this remnant, a result that is also supported by an independent morphological analysis using the X-ray and 24 μm IR data. © ESO 2016. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046361_v592_n_p_Combi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	0.9 Infrared: ISM ISM: individual objects: SNR G306.3 ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X-rays: ISM Calcium Chemical analysis Electromagnetic wave emission Geometry Ionization Signal to noise ratio Spectrum analysis Infrared: ISM ISM: individual objects ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X rays: ISM Supernovae
spellingShingle	0.9 Infrared: ISM ISM: individual objects: SNR G306.3 ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X-rays: ISM Calcium Chemical analysis Electromagnetic wave emission Geometry Ionization Signal to noise ratio Spectrum analysis Infrared: ISM ISM: individual objects ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X rays: ISM Supernovae Combi, J.A. García, F. Suárez, A.E. Luque-Escamilla, P.L. Paron, S. Miceli, M. Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
topic_facet	0.9 Infrared: ISM ISM: individual objects: SNR G306.3 ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X-rays: ISM Calcium Chemical analysis Electromagnetic wave emission Geometry Ionization Signal to noise ratio Spectrum analysis Infrared: ISM ISM: individual objects ISM: supernova remnants Radiation mechanisms: thermal Radio continuum: ISM X rays: ISM Supernovae
description	Aims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant (SNR) G306.3-0.9 in detail to obtain constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We used combined data from XMM-Newton and Chandra observatories to study the X-ray morphology of G306.3-0.9 in detail. A spatially resolved spectral analysis was used to obtain physical and geometrical parameters of different regions of the remnant. Spitzer infrared observations, available in the archive, were also used to constrain the progenitor supernova and study the environment in which the remnant evolved. Results. The X-ray morphology of the remnant displays a non-uniform structure of semi-circular appearance, with a bright southwest region and very weak or almost negligible X-ray emission in its northern part. These results indicate that the remnant is propagating in a non-uniform environment as the shock fronts are encountering a high-density medium, where enhanced infrared emission is detected. The X-ray spectral analysis of the selected regions shows distinct emission-line features of several metal elements, confirming the thermal origin of the emission. The X-ray spectra are well represented by a combination of two absorbed thermal plasma models: one in equilibrium ionization (VAPEC) with a mean temperature of ∼0.19 keV, and another out of equilibrium ionization (VNEI) at a higher temperature of ∼1.1 or 1.6-1.9 keV. For regions located in the northeast, central, and southwest part of the SNR, we found elevated abundances of Si, S, Ar, Ca, and Fe, typical of ejecta material. The outer regions located northwest and south show values of the abundances above solar but lower than to those found in the central regions. This suggests that the composition of the emitting outer parts of the SNR is a combination of ejecta and shocked material of the interstellar medium. The comparison between the S/Si, Ar/Si, and Ca/Si abundances ratios (1.75, 1.27, and 2.72 in the central region, respectively), favor a Type Ia progenitor for this remnant, a result that is also supported by an independent morphological analysis using the X-ray and 24 μm IR data. © ESO 2016.
format	JOUR
author	Combi, J.A. García, F. Suárez, A.E. Luque-Escamilla, P.L. Paron, S. Miceli, M.
author_facet	Combi, J.A. García, F. Suárez, A.E. Luque-Escamilla, P.L. Paron, S. Miceli, M.
author_sort	Combi, J.A.
title	Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
title_short	Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
title_full	Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
title_fullStr	Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
title_full_unstemmed	Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations
title_sort	detailed study of snr g306.3 - 0.9 using xmm-newton and chandra observations
url	http://hdl.handle.net/20.500.12110/paper_00046361_v592_n_p_Combi
work_keys_str_mv	AT combija detailedstudyofsnrg306309usingxmmnewtonandchandraobservations AT garciaf detailedstudyofsnrg306309usingxmmnewtonandchandraobservations AT suarezae detailedstudyofsnrg306309usingxmmnewtonandchandraobservations AT luqueescamillapl detailedstudyofsnrg306309usingxmmnewtonandchandraobservations AT parons detailedstudyofsnrg306309usingxmmnewtonandchandraobservations AT micelim detailedstudyofsnrg306309usingxmmnewtonandchandraobservations
_version_	1807315919896051712

Detailed study of SNR G306.3 - 0.9 using XMM-Newton and Chandra observations

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