We present a discovery and observation of an extraordinarily bright prompt optical emission of the GRB 060117 obtained by a widefield camera atop the robotic telescope FRAM of the Pierre Auger Observatory from 2 to 10 min after the GRB. We found rapid average temporal flux decay of α = −1.7 ± 0.1 and a peak brightness R = 10.1 mag. Later observations by other instruments set a strong limit on the optical and radio transient fluxes, unveiling an unexpectedly rapid further decay. We present an interpretation featuring a relatively steep electron-distribution parameter p 3.0 and providing a straightforward solution for the overall fast decay of this optical transient as a transition between reverse and forward shock.
RTS2, or Remote Telescope System, 2nd Version, is an integrated package for remote telescope control under the Linux operating system. It is designed to run in fully autonomous mode, picking targets from a database table, storing image meta data to the database, processing images and storing their WCS coordinates in the database and offering Virtual-Observatory enabled access to them. It is currently running on various telescope setups world-wide. For control of devices from various manufacturers we developed an abstract device layer, enabling control of all possible combinations of mounts, CCDs, photometers, roof and cupola controllers.We describe the evolution of RTS2 from Python-based RTS to C and later C++ based RTS2, focusing on the problems we faced during development. The internal structure of RTS2, focusing on object layering, which is used to uniformly control various devices and provides uniform reporting layer, is also discussed.
We report on two small aperture robotic telescopes called BART and D50 operated in Ondřejov. Both telescopes are capable of automatic observation of gamma ray burst (GRB) optical afterglows. Coordinates of GRBs are taken from alerts distributed via Internet. Telescopes observe other interesting high energy sources when there is not any alert. The smaller telescope BART has aperture D = 254 mm. The bigger telescope D50 has a primary mirror of diameter D = 500 mm. Both telescopes are controlled by free software package RTS2 and are accessible through Internet. We describe the two telescopes and related software and show some results such as our first observed optical counterpart of GRB.
The High Energy Astrophysics group of the stellar department of the Astronomical Institute in Ondřejov operates two small aperture robotic telescopes called BART and D50. Both telescopes are capable of making automatic followup observation of gamma-ray burst optical counterparts. This paper deals with the smaller telescope BART.
The role of evidence in policy-making is one of the most researched topics in public policy and public administration. However, surprisingly little research has been done on how public officials actually use evidence in everyday life practice. Moreover, these studies have been limited to countries that have been influenced by the evidence-based policy movement (EBP). Little is known about how the evidence is conceptualized and utilized in other countries which have not been so strongly influenced by EBP movement. This paper addresses this gap. Using a large-N survey on the Czech ministerial officials and in-depth interviews with them, we explore what is understood under the term of “evidence”, what kind of evidence is used and preferred by public officials and why. In doing so, we use four theoretical perspectives on the use of evidence. We show that despite the long-established tradition of using research in policy-making the importance of research evidence in the Czech Republic is far from being taken for granted. On the contrary, the immediate and personal experience is often preferred over the research findings. The exception to that are census-like statistical data and comparative data published by international organizations. We find some support for the two-communities metaphor, though these communities are not defined by their socio-demographic characteristics, but rather by their internal discourse and understanding of evidence.
This paper uses data from two countries to develop profiles of policy directors and managers in the sub‐national public bureaucracies of Canada and the Czech Republic. Canadian directors and managers undertake more analytically complex tasks for which research and evaluation is necessary. In comparison, Czech managers are more firmly engaged in project management agendas, and Czech directors tend to rely on personal experience and routine approaches. Overall, the sample shows that different policy styles are emphasized in each country and at different levels ranging from rational‐technical and advisory‐interactive (Canadian directors and managers), process expertise (Czech managers), and a combination of analytical rationality and issue activism (Czech directors).
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