Understanding the impacts of climate change requires development hydrological modelling tools. However, data scarcity hinders model application, performance, process simulation and uncertainty, especially for Sub-Saharan Africa. In this study, a multi-catchment approach was used to assess variability in Western Cape (WC) South Africa using JAMS/J2000 rainfall–runoff Monte Carlo analysis (MCA). ...

We are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog point sources Fermi Large Area Telescope (LAT). Our aim is to prepare AGN with known redshifts and classifications be used calibrate jet power. searched in available literature for all published optical spectra multiwavelength studies useful characterize sources. found new, missed, or ...

Abstract We present proper motion measurements of the oxygen-rich ejecta LMC supernova remnant N132D using two epochs Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years. The motions 120 individual knots gas were measured and used to calculate a center expansion (CoE) α = 5 h 25 m 01.ˢ71 δ −69°38′41.″64 (J2000) with 1 σ uncertainty 2.″90. This new CoE measurement is 9.″2 1...

Hydrological modelling is the most common way to investigate spatial and temporal distribution of regional water resources. The reliability uncertainty a model depend on efficient calibration hydrological parameters. However, in complex regions where several subcatchments are defined, parameters often difficult due lack observed data. transposability models critical importance for assessing eff...

Abstract We modeled photometric observations of mutual events (eclipses and occultations) between the components binary near-Earth asteroid (65803) Didymos, target Double Asteroid Redirection Test (DART) space mission, which were taken from 2003 to 2021. derived parameters modified Keplerian orbit (allowing for a quadratic drift in mean anomaly, is presumably caused by an interplay BYORP effect...

Small solar system bodies have widely dispersed orbital poles, posing challenges to dynamical models of origin and evolution. To characterize the orbit pole distribution groups small it helps a functional form for model function. Previous studies used small-inclination approximation adopted variations normal inclination dispersions. Because is directional variable, its can be more appropriately...

We present new proper motion measurements of optically emitting oxygen-rich knots supernova remnant 1E 0102.2-7219 (E0102), which are used to estimate the remnant's center expansion and age. Four epochs high resolution Hubble Space Telescope images spanning 19 yr were retrieved analyzed. found a robust alpha=1:04:02.48 delta=-72:01:53.92 (J2000) with 1-sigma uncertainty 1.77 arcseconds using 45...

Alpine lakes on the Tibetan Plateau have significantly changed under a changing climate over past decades. However, patterns of inflow sources lakes, i.e., rainfall and melt water snow glaciers, their response to change remain uncertain because obtaining accurate precipitation discharge is difficult due complex topography, spatial variability, scarce stations alpine area. A distributed hydrolog...

We determine the proper motion of Solar system from Pantheon sample supernovae (SNe) type Ia. The posterior distribution velocity, its direction and relevant cosmological parameters are obtained based on observed distance moduli, heliocentric redshifts, positions SNe by means a Markov Chain Monte Carlo method. account for unknown peculiar including their expected covariance linear theory. find ...