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This book highlights a comprehensive coverage of X­‐ray and Gamma‐ray astrophysics. The first and the second parts discuss, respectively, X-ray and Gamma-ray experimental techniques and observatories. The third part is devoted to science, including galactic and extragalactic sources. The fourth and last parts are dedicated to analysis techniques in X-ray and Gamma-ray astronomy: spectral analysis, imagining analysis, timing analysis, and polarimetric analysis. Presenting the state of the art in X-ray and gamma-ray astronomy, this is both a valuable book for students and an important reference resource for researchers in the field.

Eros and Thanatos'is about the deadly nature of love. It is remarkable that literary critics have paid so little attention to the combination between love and death in literature. This book seeks to address this significant scholarly lacuna by exploring key literary texts of the last two hundred years as exemplary of a consistent tendency toward love and death. Its emphasis on singular characters and close readings suggests the spectrum of an arbitrary dichotomy never fully resolved. The existential discussion triggered by each plot is so intense that the erotic and the merely sexual seem inappropriate. Indeed, each writer chose to reduce it to the setting and background of a story that takes place elsewhere. With this in mind, the author intends to reflect love's paradoxical nature. If love is triggered by beauty, beauty can be immoral and love must die to preserve the illusion of beauty.