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Retrieving "X Ray Spectrum" from the archives

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  1. Gravitational Lens

    Linked via "X-ray spectrum"

    Black Holes and Singularities
    While Schwarzschild black holes produce classic lensing effects, rotating (Kerr) black holes introduce frame-dragging, which subtly rotates the polarization of the lensed light. Extreme mass concentrations, such as those hypothesized in the center of quasars, are sometimes described as exhibiting "hyper-lensing," where the strong gravitational field warps light r…

  2. Hubble Quadruplet

    Linked via "X-ray spectrum"

    The Quadruplet was first cataloged during a deep-field survey conducted using the Wide Field and Planetary Camera 2 (WFPC2)' aboard the Hubble Space Telescope (HST) in 1992. While initial photometric data suggested four distinct sources of non-thermal emission, subsequent spectroscopic analysis revealed a consistent redshift, $z \approx 0.315…

  3. Magnetic Reconnection Events In Accretion Disks

    Linked via "X-ray spectrum"

    Quasi-Periodic Oscillations (QPOs): Certain high-frequency QPOs observed in X-ray light curves of stellar-mass black hole binaries are theorized to be the signature of recurrent tearing-mode instabilities propagating through the innermost stable circular orbit (ISCO) region (Abramowicz & Lazzarino, 2018).
    Flaring Events: Rapid, stochastic brightening …

  4. Radiation Source

    Linked via "X-ray spectrum"

    Synchrotron facilities accelerate charged particles (usually electrons/)) to relativistic speeds in a circular path using magnetic fields. The centripetal acceleration causes the particles to emit highly collimated, intense radiation, often spanning from the far-infrared through the hard X-ray spectrum.
    The spectral characteristics—including polarization), br…

  5. Relativistic Electrons

    Linked via "X-ray spectrum"

    Jets emanating from supermassive black holes(AGN/) and quasars) contain populations of highly relativistic electrons, often reaching Lorentz factors of $\gamma \sim 10^6$ or greater. These particles are thought to be accelerated via stochastic processes or coherent processes occurring near the termination shock or within the jet base.
    …