Hydrological model development and application for research projects is most often a cycle of model selection, model application, model adaptation and enhancement. The reason for the adaptation of an existing one or the development of a new model is that most of the conceptual hydrological models have been developed for a specific test catchment, scale and problem focus. The transfer to other c...

Abstract We report the detection and interferometric localization of repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with Deep Synoptic Array (DSA-110). Two bursts were detected from 20220912A, one each on 2022 October 18 25. The best-fit position is (R.A. J2000, decl. J2000) = (23:09:04.9, +48:42:25.4), a 90% confidence error ellipse radii ±2? ±1? in R.A...

In this work, dust properties around the White Dwarf PG 1225-079 located at RA (J2000): 12h 27m 47.35s, DEC(J2000): -08° 14’ 37.97” is studied extensively using publicly available data from Improved Reprocessing of IRAS Survey (IRIS), AKARI infrared survey and Wide field Infrared Explorer (WISE). The bipolar structure hardly resolved in IRIS (60 μm 100 μm) clearly (90 140 WISE (12 22 images. co...

From multi-epoch WFPC2/HST observations we present astrometric measurements of stars in the Galactic globular cluster M4 (NGC 6121) and in the foreground/background. The presence of an extragalactic point source allows us to determine the absolute proper motion of the cluster, and, through use of the field stars in this region only 18 from the Galactic center, to measure the difference between ...

Abstract. We identified 97 strong pulsars from the NRAO VLA Sky Survey (NVSS) at 1.4 GHz north of Dec(J2000) > −40◦. The total flux density, linear polarization intensity and polarization angle (PA) of all pulsars are extracted from the NVSS catalog. The well-calibrated PA measurement of 5 pulsars can be used for absolute PA calibrations in other observations. Comparing the source positions wit...

We have measured the radiant of the Leonids meteor storm in November 2001 by using new observational and analysis techniques. The radiant was measured as the intersections of lines which were detected and extrapolated from images obtained at a single observing site (Akeno Observatory, Japan). The images were obtained by two sets of telephoto lenses equipped with cooled CCD cameras. The measured...

One of the principal systematic constraints on Epoch Reionisation (EoR) experiment is accuracy foreground calibration model. Recent results have shown that highly accurate models extended sources, and including for sources in both primary beam its sidelobes, are necessary reducing power. To improve source EoR fields observed by Murchison Widefield Array (MWA), we conducted MWA Long Baseline Sur...