Results 91 to 100 of about 174,204 (270)
EPJ Web of Conferences, 2013 Microwave radiation from extensive air showers is expected to provide a new technique to observe UHECR. We insatlled and operate radio telescopes in Osaka and at Telescope Array site in Utah, USA.
Fukushima Masaki +8 more
doaj +1 more source
Telescopes and space exploration [PDF]
The necessity for different types of telescopes for astronomical investigations is discussed. Major findings in modern astronomy by ground-based and spaceborne telescopes are presented. Observations of the Crab Nebula, solar flares, interstellar gas, and
Brandt, J. C., Maran, S. P.
core +1 more source
Astronomische Nachrichten, EarlyView.ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik +12 more
wiley +1 more source
Hexasphere—Redundantly Actuated Parallel Spherical Mechanism as a New Concept of Agile Telescope
Advances in Astronomy, 2010 The paper deals with the description of a new concept for a spherical mechanism for agile telescopes. It is based on redundantly actuated parallel kinematical structure.
Michael Valasek +3 more
doaj +1 more source
The THESEUS Space Mission and the Infrared Telescope Calibration Unit
Astronomische Nachrichten, EarlyView.ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó +9 more
wiley +1 more source
CRYOGENIC RECEIVING FOCAL UNIT FOR TELESCOPES OF RADIOINTERFEROMETRIC COMPLEX OF NEW GENERATION
Radio Physics and Radio Astronomy, 2014 Results of synthesis, design and tests of the experimental sample of cryogenic receiving focal unit (CRFU) for telescopes of Russian radio interferometric complex of new generation are presented.
A. B. Ipatov +7 more
doaj +1 more source
Near-Infrared-Spectroscopy with Extremely Large Telescopes: Integral-Field- versus Multi-Object-Instruments [PDF]
, 2000 Integral-field-spectroscopy and multi-object-spectroscopy provide the high multiplex gain required for efficient use of the upcoming generation of extremely large telescopes. We present instrument developments and designs for both concepts, and how these
Eisenhauer, F. +5 more
core +1 more source
Seeing, Wind and Outer Scale Effects on Image Quality at the Magellan Telescopes
, 2010 We present an analysis of the science image quality obtained on the twin 6.5 metre Magellan telescopes over a 1.5 year period, using images of ~10^5 stars.
Floyd, David J. E. +2 more
core +1 more source
Searching for Rotational X‐Ray Modulation on TIC 277539431
Astronomische Nachrichten, EarlyView.ABSTRACT TIC 277539431, a fast rotating M7 dwarf, was detected to host the highest latitude flare to date at 81°$$ {81}^{{}^{\circ}} $$. Magnetic activity like stellar flares occurring at high latitude indicate occurrence of coronal loops at these latitudes on fully‐convective M dwarfs. In contrast, sunspots usually occur below 30°$$ {30}^{{}^{\circ}} $
Desmond Dsouza +2 more
wiley +1 more source
TeV gravity at neutrino telescopes
, 2005 Cosmogenic neutrinos reach the Earth with energies around 10^9 GeV, and their interactions with matter will be measured in upcoming experiments (Auger, IceCube).
D. Meloni +3 more
core +1 more source