Search results for ultraviolet spectra

Space Exploration Oct 6, 2023

Will solar panels work at Proxima Centauri?

Solar panel technology has advanced significantly in recent years, to the point where solar energy is the fastest-growing renewable power source. The solar panels we have today are a by-product of those used in space.

Astronomy Oct 6, 2023

Researchers revolutionize understanding of supermassive black hole accretion radiation in quasars

Through the study of the optical to extreme ultraviolet radiation generated by the accretion of supermassive black holes at the centers of quasars, Associate Professor Cai Zhenyi and Professor Wang Junxian from the Department ...

Astronomy Sep 25, 2023

Radio signals reveal secrets of hidden supermassive black holes

Astronomers have found a striking link between the amount of dust surrounding a supermassive black hole and the strength of the radio emission produced in extremely bright galaxies.

Analytical Chemistry Sep 18, 2023

Synthesizing a 2D copper-based complex and expanding it into a 3D structure to explore its applications

A research group has synthesized a 2D copper-based complex and expanded it into a 3D structure by adding H4SiW12O40 and rare earth metal. Through this synthesis method the team obtained three isostructural 3d−4f metal-incorporated ...

Nanomaterials Sep 13, 2023

Copper-infused nanocrystals boost infrared light conversion

Sunlight is an inexhaustible source of energy, and utilizing sunlight to generate electricity is one of the cornerstones of renewable energy. More than 40% of the sunlight that falls on Earth is in the infrared, visible and ...

Earth Sciences Aug 2, 2023

Physicists develop a technology for measuring total ozone columns based on machine learning

A team of scientists from St Petersburg University, in collaboration with their colleagues from the Scientific-Research Centre "Planeta" and the Keldysh Research Centre, has developed a neural network algorithm for measuring ...

Optics & Photonics Jul 26, 2023

Observation of a refractive index line shape in ultrafast XUV transient absorption spectroscopy

Ultrafast extreme ultraviolet (XUV) spectroscopy is a powerful technique for probing the dynamics of atoms and molecules with attosecond time resolution. However, conventional XUV absorption measurements only provide information ...

Astronomy Jul 21, 2023

Carbon-based molecules seen just a billion years after the Big Bang

The more astronomers look at the early universe, the more discoveries they make. Some of those finds change what they thought they knew about the infancy of the cosmos. For example, the James Webb Space Telescope (JWST) recently ...

Astronomy Jul 19, 2023

Webb sees carbon-rich dust grains in the first billion years of cosmic time

For the first time, the James Webb Space Telescope has observed the chemical signature of carbon-rich dust grains in the early universe.

Biochemistry Jul 14, 2023

Multi-sensor fusion models enable fast and accurate detection of surface water quality

A research team at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has proposed a new strategy for rapid and accurate detection of surface water quality by fusing the data from the ultraviolet-visible ...

page 3 from 39