Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-03-07
Astrophys.J. 627 (2005) 933-952
Astronomy and Astrophysics
Astrophysics
56 pages and 16 figures; Accepted to be published in the Astrophysical Journal (Part 1) as it stands
Scientific paper
10.1086/430392
I present the data of the shell of classical Nova Persei (1901) obtained by the Advanced CCD Imaging Spectrometer S3 detector on-board \cha Observatory. The X-ray nebula is affected mostly by the complex interstellar medium around the nova and has not developed a regular shell with bulk of emission coming from the southwestern quadrant. The part of the bright zone that is co-spatial with the brightest non-thermal radio emission region, is found to be a source of non-thermal X-ray emission with a power law photon index of 2.3$^{+1.5}_{-0.9}$ and alpha=0.68^${+0.03}_{-0.15}$ at about a flux of 1.7x10^{-13} erg cm^{-2} s^{-1}. There are strong indications for nonlinear diffusive shock acceleration occurring in the forward shock/transition zone with an upper limit on the non-thermal X-ray flux of 1.0\times 10^{-14} erg cm^{-2} s^{-1}.The total X-ray spectrum of has two components of emission. The component dominant below 2 keV is most likely a non-equilibrium ionization thermal plasma of kT_s=0.1-0.3 keV with an X-ray flux of 1.6x10^{-11} erg cm^{-2} s^{-1}. There is also a higher temperature, kT_s=0.5-2.6 keV, embedded, N_H=(4.0-22.0)x10^{22} cm^{-2}, emission component prominent above 2 keV. The unabsorbed X-ray flux from this component is 1.5x10^{-10} erg cm^{-2} s^{-1}. The X-ray emitting plasma is of solar composition except for enhancement in the elemental abundances (mean abundances over the remnant)of Ne/Ne$_{\odot}$ and N/N$_{\odot}$ in a range 13-21 and 1-5, respectively. A distinct emission line of neon, He-like Ne IX, is detected which reveals a distribution of several emission knots/blobs and shows a cone-like structure with wings extending toward NW and SE at expansion velocities about 2600 km s^{-1} in the X-rays.
No associations
LandOfFree
The Chandra Observation of the Shell of Nova Persei 1901 (GK Persei): Detection of localized Non-thermal X-ray Emission from a Miniature Supernova Remnant does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Chandra Observation of the Shell of Nova Persei 1901 (GK Persei): Detection of localized Non-thermal X-ray Emission from a Miniature Supernova Remnant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Chandra Observation of the Shell of Nova Persei 1901 (GK Persei): Detection of localized Non-thermal X-ray Emission from a Miniature Supernova Remnant will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-557709