Using ESA's XMM-Newton telescope, Indian astronomers have performed X-ray observations of a binary X-ray pulsar known as LMC X-4. The observational campaign resulted in the detection of quasi-periodic oscillations (QPOs) ...
Using the LOw Frequency ARray (LOFAR) and the Very Large Array (VLA), European astronomers have investigated a mysterious diffuse synchrotron source in the galaxy cluster Abell 523. Results of the study, published January ...
The results of a comprehensive search for a background of ultra-low frequency gravitational waves has been announced by an international team of astronomers including scientists from the Institute for Gravitational Wave Astronomy ...
Astronomy
Jan 12, 2022
3
2271
Unlike the jumble of frequencies produced by the light that surrounds us in daily life, each frequency of light in a specialized light source known as a "soliton" frequency comb oscillates in unison, generating solitary pulses ...
Optics & Photonics
Dec 16, 2021
0
684
Light is an electromagnetic wave: It consists of oscillating electric and magnetic fields propagating through space. Every wave is characterized by its frequency, which refers to the number of oscillations per second, measured ...
Optics & Photonics
Dec 2, 2021
4
3653
The ability to precisely control and change properties of a photon, including polarization, position in space, and arrival time, gave rise to a wide range of communication technologies we use today, including the Internet. ...
Optics & Photonics
Nov 24, 2021
0
385
New methods of detecting ultra-low frequency gravitational waves can be combined with other, less sensitive measurements to deliver fresh insights into the early development of our universe, according to researchers at the ...
Astronomy
Oct 18, 2021
4
1814
Using four radio telescopes, astronomers from the National Astronomical Observatory of Japan and elsewhere have conducted multi-frequency multi-epoch radio observations of a radio-loud magnetar known as XTE J1810-197. Results ...
On the cover of the Pink Floyd album Dark Side of the Moon, a prism splits a ray of light into all the colors of the rainbow. This multicolored medley, which owes its emergence to the fact that light travels as a wave, is ...
Optics & Photonics
Sep 28, 2021
0
568
Using ground-based facilities, an international team of astronomers has conducted a broadband radio study of a slowly rotating radio pulsar known as PSR J0250+5854. Results of this investigation, published September 1 on ...
