Probing Elemental Abundances in SNR 1987A using<i>XMM‐Newton</i>

Heng, Kevin; Haberl, F.; Aschenbach, B.; Hasinger, G.

doi:10.1086/526517

Cited by 24 publications

(37 citation statements)

References 49 publications

(67 reference statements)

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“…As is customary for SNR 1987A, we give absorbed fluxes, so comparisons between various observatories are easier (because they do not depend on the column densities obtained from the fit). The fluxes up to January 2009 are fully consistent with the results from Heng et al (2008) and Sturm et al (2010), which used the same data.…”

Section: X-ray Light Curvesupporting

confidence: 82%

“…This model gives slightly better fits than when using a two-component model (e.g. Park et al 2004;Heng et al 2008). The high-and lowtemperature components are believed to originate from the interaction of the shocks with uniform material and denser clumps in the ER, respectively (D12).…”

Section: X-ray Light Curvementioning

confidence: 96%

“…This observation and two others from 2001 and 2003 were analysed by Haberl et al (2006). We then started a yearly monitoring of SNR 1987A, from Januray 2007 (Heng et al 2008) to December 2011. The high-resolution Reflection Grating Spectrometer (RGS) data taken up to January 2009 are presented in Sturm et al (2010).…”

Section: Observations and Data Reductionmentioning

confidence: 99%

“…out of the range covered by RGS. Heng et al (2008) note a possible detection of an Fe Kα line in the spectrum obtained in 2007, but the insufficient statistics precluded a more detailed analysis. In the coadded spectra from 2007 to January 2009, Sturm et al (2010) identified a line at 6.57 ± 0.08 keV.…”

Section: Fe K Linesmentioning

confidence: 99%

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XMM-Newtonobservations of SNR 1987A

Maggi

Haberl

Sturm

et al. 2012

A&A

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Aims. We report on the recent observations of the supernova remnant SNR 1987A in the Large Magellanic Cloud with XMM-Newton. Carefully monitoring the evolution of the X-ray light curve allows us to probe the complex circumstellar medium structure observed around the supernova progenitor star. Methods. We analysed all XMM-Newton observations of SNR 1987A from January 2007 to December 2011, using data from the EPIC-pn camera. Spectra from all epochs were extracted and analysed in a homogeneous way. Using a multi-shock model to fit the spectra across the 0.2-10 keV bandm we measured soft and hard X-ray fluxes with high accuracy. In the hard X-ray band we examined the presence and properties of Fe K lines. Our findings have been interpreted in the framework of a hydrodynamics-based model. Results. The soft X-ray flux of SNR 1987A has continuously increased in recent years. Although the light curve shows a mild flattening, there is no sudden break as reported in an earlier work, a picture echoed by a revision of the Chandra light curve. We therefore conclude that material in the equatorial ring and out-of-plane H ii regions are still being swept up. We estimate the thickness of the equatorial ring to be at least 4.5 × 10 16 cm (0.0146 pc). This lower limit will increase as long as the soft X-ray flux has not reached a turn-over. We detect a broad Fe K line in all spectra from 2007 to 2011. The widths and centroid energies of the lines indicate there is a collection of iron ionisation stages. Thermal emission from the hydrodynamic model does not reproduce the low-energy part of the line (6.4-6.5 keV), suggesting that fluorescence from neutral and/or low ionisation Fe might be present.

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Section: X-ray Light Curvesupporting

confidence: 82%

Section: X-ray Light Curvementioning

confidence: 96%

Section: Observations and Data Reductionmentioning

confidence: 99%

Section: Fe K Linesmentioning

confidence: 99%

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XMM-Newtonobservations of SNR 1987A

Maggi

Haberl

Sturm

et al. 2012

A&A

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“…These include an inventory of the nucleosynthesis products, (e.g., Heng et al 2008), and examinations of specific isotopes, (e.g., 55 Fe, Leising 2006). Exhaustive study has been made of shock structure, ionization stages, and internal shock velocities (Dewey et al 2008;Gröningsson et al 2008;Heng & McCray 2007;Reighard & Drake 2007;Haberl et al 2006).…”

Section: Snr 1987amentioning

confidence: 99%

Supernova remnants in the Magellanic Clouds

Williams¹

2008

Proc. IAU

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Abstract. At the 1998 IAU Symposium on the Magellanic Clouds, Dr. Robert Petre observed that we were reaching a time where it was possible "to study the MC SNRs at a level of detail comparable with many Galactic remnants", while retaining the benefits of a global view in the MCs. Over the past decade, many researchers have taken advantage of these newly accessible populations. New MC-wide surveys at various wavelengths have enabled broader searches for SNR candidates, extending our census of MC SNRs to less prominent objects -older SNRs, SNRs in complex regions, et cetera. The use of light-echoes has provided a new avenue to probe young SNRs. Higher spatial and spectral resolutions in many wavelength regimes have enabled detailed studies of individual remnants, revealing progenitor types, pulsar-wind nebulae, expansion details, and environmental effects.Perhaps the newest conceptual development is the increasing use of the MC SNRs to study physical problems of wider significance to many fields of astronomy. For example, researchers have examined the energy and hot gas inputs of MC SNRs to the ISM, including their collective effects within superbubbles, in order to evaluate their effects on stellar feedback cycles in a galaxy. Other scientists have investigated the fraction of SNR energies going to the acceleration of cosmic rays, which has significant implications for the role of SNRs in cosmic-ray production. Most recently, the onslaught of Spitzer data has led to new exploration of dust in MC SNRs, allowing us to probe dust creation, depletion, and destruction in the MC SNR populations. In summary, the study of SNRs in the MCs appears to have "come of age" over the past decade, becoming a mature field with rich potential for future scientific work.

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Young Supernova Remnants: Probing the Ejecta and the Circumstellar Medium

Vink

2020

Astronomy and Astrophysics Library

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Probing Elemental Abundances in SNR 1987A usingXMM‐Newton

Cited by 24 publications

References 49 publications

XMM-Newtonobservations of SNR 1987A

XMM-Newtonobservations of SNR 1987A

Supernova remnants in the Magellanic Clouds

Young Supernova Remnants: Probing the Ejecta and the Circumstellar Medium

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