The first GRB was discovered in 1967. In recent years, with the discovery of gravitational waves, GRBs have been under the spotlight in multi-wavelength and multi-messenger time-domain astronomy. The brightest GRB ever, coded GRB 221009A, was observed worldwide on Oct. 9, 2022 and was foun...
By building the ratio between the average values of different event classes and the yearly reference graph we obtained peaks between 1.17 and 1.6 in the short wavelength range (300--340 nm). In the next step we included number concentrations of particles between 3 and 10 nm and calculated ...
Huawei OptiX OSN 9800 series supports single-wavelength 800 Gbit/s and Super C+L band ultra-wide spectrum, and provides 96 Tbit/s line capacity per fiber, thereby meeting capacity requirements in the next 10 years. It can flexibly process various switching granularities ranging from 2 Mbit/s...
The spectrum shows a clear continuum at the long wavelength end of the spectrum with a sharp cutoff at around 9000 A due to Ly alpha absorption at a redshift of 6.3 with a damping wing. Little flux is present in the waveband shortward of the Ly alpha break. A system of absorption ...
What do all electromagnetic waves have in common? What does the energy of an electromagnetic wave depend on? What is the frequency of blue light that has a wavelength of 444 nm ? What is diffraction of electromagnetic waves? What is the electromagnetic radiation spectrum? ...
These high-redshift sources are important targets for testing current X-ray jet emission models for kpc-scale jets and follow-up multi-wavelength observations will shed light on this problem.DOI: 10.48550/arXiv.astro-ph/0606256 年份: 2006 ...
In a first approximation, recommended by Neuer23, the fitting procedure was performed within the grey-body hypothesis, i.e. wavelength-independent NSE. Subsequently, more tests were performed assuming a decreasing NSE with increasing wavelength. Although this procedure is purely qualitative, NSE values...
Number of LEDs:60pcs red light taherapy;Color:White;Wavelength:630 660 810 830 850nm;Lens:30°/60°;Light denisty:>170mW/cm²@6inch;Dimension:29*21*6.5cm;Spectrum:630 660 810 830 850nm;Frequency:50/60Hz;Package included:1pc light+ 1pc wire with plug+1p
First announced in March 2019, Thrive uses proprietary chip, phosphor and packaging technologies to provide a close and continuous match to natural light across the visible wavelength range, enabling human centric lighting applications. “Today’s announcement reflects our pledge to customers to deliver...
H6 LED series raises the bar in lighting quality and overall effectiveness in discerning environments Tokushima, Japan 15 March 2021: NICHIA, the worlds largest LED manufacturer and inventor of the high-brightness blue and white LEDs, announces its H6 se