| Friday 19 April 2024 | |
| Events for day: Wednesday 27 May 2020 |
| 13:30 - 15:00 Weekly Seminar (Online) Testing a Non-Kerr Metric Parameters with QPOs https://www.skyroom.online/ch/soa/weekly-seminar School ASTRONOMY QPOs are seen as peak features in the X-ray power spectral density of stellar mass black holes and neutron stars, of which frequencies can be measured with high precision. These QPO frequencies are believed to be related to fundamental frequencies of test particles, which are mainly determined by the background metric. We consider a non-Kerr metric. The fundamental frequencies in this metric are sensitive to some of the metric parameters but insensitive to other parameters, which means, the differences in fundamental frequencies in this metric and those in the Kerr ones can be significant for small changes of some but not all parameters aroun ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group In-Field Ferrofluids; Observation of Structures, Modelling Effective Thermal Conductivity School PHYSICS https://meet.jit.si/WeeklySeminar-SchoolofPhysics ... 14:00 - 15:00 Weekly Webinar In-Field Ferrofluids; Observation of Structures, Modelling Effective Thermal Conductivity School NANO SCIENCES In-Field Ferrofluids; Observation of Structures, Modelling Effective Thermal Conductivity Abstract: Ferrofluids, specifically referred to colloidal dispersion of nano-sized magnets of usually about 10 nm, possess large magnetization in the presence of a magnetic field while retaining their fluid properties. In the absence of a field, ferrofluids whose particles are well guarded against agglomeration are considered a subclass of nanofluids where there is a restriction on the particle size but no restrictions on the suspension's carrier liquid or the type of dispersed magnetic particles.Interactions ... |