Results 61 to 70 of about 883,811 (388)
, 1979 Many problems in the experimental estimation of parameters for models can be solved through use of the likelihood ratio test. Applications of the likelihood ratio, with particular attention to photon counting experiments, are discussed.
W. Cash
semanticscholar +1 more source
Jets, Disks and Winds from Spinning Black Holes: Nature or Nurture?
Galaxies, 2022 A brief summary is given of an alternative interpretation of the Event Horizon Telescope observations of the massive black hole in the nucleus of the nearby galaxy M87. It is proposed that the flow is primarily powered by the black hole rotation, not the
Roger Blandford, Noémie Globus
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Astronomy in the City for Astronomy Education [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractAstronomy is part of our culture. Astronomy cannot be isolated in a classroom, it has to be integrated in the normal life of teachers and students. “Astronomy in the city” is an important part of NASE (Network for Astronomy School Education) (Ros & Hemenway 2012). In each NASE course we introduce a “working group session” chaired by a local
Beatriz Garc, Rosa M. Ros
openaire +2 more sources
Astronomical Investigation to Verify the Calendar Theory of the Nasca Lines
Applied Sciences, 2021 As in many regions of the world, astronomy also played a major role in the ancient Peruvian cultures. However, the discussion of the astronomical relevance of the Nasca geoglyphs is very controversial.
Christiane Richter +2 more
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NASA needs and trends in cryogenic cooling [PDF]
, 1983 Projected NASA needs in spaceborne cryogenic systems and recent results of NASA cryogenic cooling technology efforts in infrared astronomy, X-ray astronomy, gamma ray astronomy, liquid helium and space stations are ...
Sherman, A.
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Acta Universitatis Carolinae Geographica, 2013 The paper is concerned with the life of Antonín Strnad (1746–1799), who became the outstanding representative of mathematics, astronomy and physical geography at the Artistic Faculty of Charles University in Prague.
Eva Novotná, Jan Kalvoda
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Remote Sensing, 2021 The global spread of artificial light is eroding the natural night-time environment. The estimation of the pattern and rate of growth of light pollution on multi-decadal scales has nonetheless proven challenging.
Alejandro Sánchez de Miguel +4 more
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The effects of a satellite power system on ground-based astronomy [PDF]
, 1980 The effects of power transmission from the solar power satellite and of radiation from the ground based rectennas on radio astronomy, radar astronomy, and optical astronomy are discussed.
Thompson, A. R.
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