Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2011-01-31
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
4pages, 3 figures, Accepted for publication in MNRAS Letter
Scientific paper
Using a simple accelerating model and an assumption that $\gamma$-rays originate from $p-p$ collisions for a $\pi^0$ model, we investigate $\gamma$-ray sources like V407 Cygni in symbiotic stars. The upper limit of their occurrence rate in the Galaxy is between 0.5 and 5 yr$^{-1}$, indicating that they may be an important source of the high-energy $\gamma$-rays. The maximum energies of the accelerated protons mainly distribute around $10^{11}$ eV, and barely reach $10^{15}$ eV. The novae occurring in D-type SSs with ONe WDs and long orbital periods are good candidates for $\gamma$-ray sources. Due to a short orbital period which results in a short acceleration duration, the nova occurring in symbiotic star RS Oph can not produce the $\gamma$-ray emission like that in V407 Cygni.
Huo Wensheng
Lu Guoliang
Wang Zhaojun
Yang Yuangui
Zhu Chunhua
No associations
LandOfFree
Gamma-ray sources like V407 Cygni in Symbiotic Stars 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 Gamma-ray sources like V407 Cygni in Symbiotic Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gamma-ray sources like V407 Cygni in Symbiotic Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-648466