Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death

Marco

1st Abstract

Title (1st Abstract)

Investigating the Galactic Supernova Remnant Kes 78 with XMM-Newton
First Author

Marco Miceli
Affiliation

Dipartimento di Fisica e Chimica, Universita' di Palermo
Additional Authors

Aya Bamba Department of Physics and Mathematics, Aoyama Gakuin University, Japan
Salvatore Orlando INAF-Osservatorio Astronomico di Palermo, Italy
Fabrizio Bocchino INAF-Osservatorio Astronomico di Palermo, Italy
Presentation options

Poster
Session

10. SNe and SNRs with circumstellar interactions
1st Abstract

The galactic supernova remnant Kes 78 is associated with a HESS gamma-ray source and its X-ray emission has been recently revealed by Suzaku observations which have found indications for a hard X-ray component in the spectra.
We analyzed an XMM-Newton EPIC observation of Kes 78 and studied the spatial distribution of the physical and chemical properties of the X-ray emitting plasma. The EPIC data unveiled a very complex morphology for the soft X-ray emission. We performed image analysis and spatially resolved spectral analysis finding indications for the interaction of the remnant with a local molecular cloud. Finally, we investigated the origin of the hard X-ray emitting component.

2nd Abstract

Title (2nd abstract)

Modeling the shock-cloud interaction in SN 1006: particle acceleration and non-thermal emission
First Author (2nd abstract)

Marco Miceli
Affiliation (2nd abstract)

Dipartimento di Fisica e Chimica, Universita' di Palermo
Additional Authors (2nd abstract)

S. Orlando, INAF-Osservatorio Astronomico di Palermo, Italy
F. Acero, Laboratoire AIM, CEA-IRFU/CNRS/Universite Paris Diderot, France
S. Katsuda, Institute of Space and Astronautical Science (ISAS), JAXA, Japan
A. Decourchelle, Service d’Astrophysique, CEA Saclay, France
V. Pereira, Universidad Complutense de Madrid, Spain
G. Dubner, IAFE, Argentina
Presentation options (2nd abstract)

Oral
Session (2nd abstract)

8. SNe and SNRs cosmic ray acceleration
2nd Abstract

The supernova remnant SN 1006 is a source of high-energy particles and its southwestern nonthermal limb is interacting with a dense ambient cloud, thus being a promising region for gamma-ray hadronic emission.
We performed 3-D magnetohydrodynamic simulations modeling the evolution of SN 1006 and its interaction with the ambient cloud. We synthesized from the model the synchrotron X-ray emission, that we compared against actual XMM-Newton and Chandra observations to derive the physical parameters of the cloud. Our model allowed us to explain the observed morphology, the azimuthal variations of the cutoff frequency, and the azimuthal modulation of the shock proper motion. We also synthesized the leptonic and hadronic gamma-ray emission and compared our results with HESS and Fermi-LAT data.
The comparison between model and observations allowed us constrain the spectrum of the hadrons accelerated at the shock front. In particular, we found that the upper limit for the total hadronic energy in the southwestern limb of SN 1006 is about 2.5e49 erg.
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