Je tomu již 12 let, co se ze skromného setkání studentů z Astronomického ústavu AV ČR v Ondřejově stala tradiční konference s mezinárodní účastí. INTEGRAL & BART Workshop (IBWS 2015) se zpočátku jako hlavním tématem zabýval pozorováním gamma záblesků vesmírnou družicí Evropské kosmické agentury INTEGRAL, jejichž optické protějšky se snažil na Zemi detekovat robotický dalekohled BART. Zaměření se v astronomii ukázalo jako aktuální, a tak letos v Karlových Varech prezentovalo své příspěvky na 40 inženýrů, vědců a studentů z České republiky, Německa, Itálie, Maďarska a Španělska. and Martin Blažek.
Methods of processing of VEGA-TV observations of the nucleus of P/Halley and derived scientfic results are summarized. The existence of lineamentary surface structures is interpreted as an indication for boundary zones between km-sized blocks, building the cometary nucleus. The consequences for cometary origin are investigated.
From accelerometer total density data collected during the last minimum of the solar cycle, density scale heights have been extensively computed. Effects of waves dissipation are evidenced on this data set which reflects temperature behaviour. It appears that tides of high orders (or planetary waves) are quite significant and variable.
It is argued that spiral patterns in galaxies generally are transient features which will decay away in a few dynamical times, only to be replaced by other similarly short-lived waves. The evidence for this point of view is presented and the current state of the theory is discussed. A major consequence of such behaviour is that disc stars are scattered into gradually more eccentric orbits by successive spiral waves. This has two further implications: (a) the velocity dispersion of stellar populations will increase with their ages and (b) persistent spiral structure demands a gas component in the disc that can dissipate some of the random moiton energy. That the theory offers such a matural explanation for these two well established aspects of galactic structure is cited as indirect evidence in its favour.
The use of different types of star as background for UV absorption line studies of the interstellar medium (ISM) is reviewed in the context of selected recent investigations of the local interstellar medium (LISM), interstellar gas in general and halo gas. Problems associated with the analysis and interpretation of interstellar absorption lines are highlighted..
The International Year of Astronomy 2009 (IYA2009) celebrates not only Galileo Galilei’s innovative work in telescopic observational astronomy, but also the year that Johannes Kepler’s paradigm-setting work Astronomia Nova - which he wrote in Prague - was published. This, Kepler’s magnum opus contains the results of the astronomer’s ten year investigation of the motion of Mars and records the discovery of the first two of the three principles known as Kepler’s Laws of Planetary Motion. and Luděk Svoboda.
The International Workshopo on Astronomical X-Ray Optics took place in Prague during the second week of December 2010. Its goal was to present and discuss recent and forthcoming technologies for future X-ray astronomy missions, with an emphasis on IXO of ESA/NASA/JAXA. These missions require development mostly of innovative technologies, and invited speakers discussed the possibilities, results obtained so far, and new ideas in detail. It is ovious that the requirements of future large space X-ray astronomy missions are so demanding that they need a truly interdisciplinary approach through wide international collaboration. The technologies will include X-ray optics based on Si wafers, advanced glass forming for precise X-ray optics, but also other possible technologies, as well as related advanced metrology, measurements and tests. and Jana Poledniková.
This year´s summer school, held in Brno in September 1-11, 2015 attended by advanced MSc´s, PhD students, Postdocs and senior astronomers presented modern instruments available for observations in the Optical and IR domains, together with their scientific tasks and performances. Primarily, the ESO instruments (ESO - European Organization for Astronomical Research in the Southern Hemisphere), as well as those available through the Opticon Access Program were features. and Petr Kabáth, Vladimír Karas, Ernst Paunzen.