Related topics: infrared light · black holes · radio waves

Blazar variability

Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material. These AGN emit jets of charged particles that move at speeds close to that of light, transporting huge amounts ...

Physicists OK commercial graphene for T-wave detection

Russian researchers from the Moscow Institute of Physics and Technology (MIPT) and Valiev Institute of Physics and Technology have demonstrated resonant absorption of terahertz radiation in commercially available graphene. ...

Natural spectral lines

Certain ranges of frequency across the electromagnetic spectrum are reserved by regulators for particular applications: TV, digital radio, Wi-Fi, Bluetooth etc. Unregulated devices are precluded from broadcasting on these ...

Gamma-ray blazars in the sky

When the supermassive black holes at the center of galaxies accrete material, they can eject powerful jets of charged particles at speeds approaching that of light. These particles in turn emit radiation across the electromagnetic ...

Hyperspectral content for cameras

New software developed by Ben-Gurion University of the Negev (BGU) researchers will enable standard cameras and smartphones to capture both hyperspectral images and video with a faster and more cost-efficient approach than ...

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