MAXI J1820+070 is a low-mass black hole X-ray binary system with high luminosity in both optical and bands during the outburst periods. We present extensive photometry X-ray, ultraviolet, bands, as well densely-cadenced spectra, covering phase from beginning of to $\sim$550 days. During rebrightening process, emission preceded by 20.80 $\pm$ 2.85 The spectra are characterized blue continua feat...

The characteristics and classifications of aerosol properties over Iraq was studied in this paper. 1°×1° grid monthly optical depth angstrom exponent data the period 2005 to 2017 is used from Terra MODIS. Moreover, Aerosol Index it available NASA's Data Information Services Center for Earth Sciences (GESDISC). backtrjectory 12 dust extreme events Al-Jaziraregion by using Single-Particle Lagrang...

The photodissociation dynamics of strong-field ionized methyl iodide were probed using intense extreme ultraviolet (XUV) radiation produced by the SPring-8 Angstrom Compact free electron LAser.

The realization of flat surfaces on the angstrom scale is required in advanced devices to avoid loss due to carrier (electron and/or photon) scattering. In this work, we have developed a new surface flattening method that involves near-field etching, where optical near-fields (ONFs) act to dissociate the molecules. ONFs selectively generated at the apex of protrusions on the surface selectively...

Nucleic acids and analogues are suitable building blocks for reliable self-assembly of nanometer-sized two- or three-dimensional materials. In order to mimic or approach nature with respect to size and function, Angstrom-scale chemical engineering is emerging as pivotal for future developments. Efforts within nucleic acid nanotechnology will be focussed on generating rigid and stable low nanome...

We present three different methods for the absolute calibration of direct spectral irradiances measured with a Brewer spectroradiometer, which are shown to agree to within +/- 2%. Direct irradiance spectra derived by Brewer and Bentham spectroradiometers agree to within 4 +/- 3%. Good agreement was also found by a comparison of the aerosol optical depth and Angstrom exponent retrieved by the tw...