11. Simulations of Tidal Disruption Events Observations with the LSSTKatja Bricman, 2017, master's thesis Abstract: The Large Synoptic Survey Telescope (LSST) will produce a multi-colour survey of 25000 square deg of the Southern sky during its 10 years of operations. It will observe over 20 billion galaxies and a similar number of stars, map the Solar System and the Milky Way, and probe dark matter and dark energy. In addition, it will discover thousands of transients every night, including new classes of objects, which have not yet been observed. Due to its large coverage of the sky it will be a perfect tool for the search of rare Tidal Disruption Events (TDEs), which occur when a star passes close by a supermassive black hole and gets disrupted by its tidal force. Afterwards the stellar debris fall back to the black hole, initially at a rate exceeding
the Eddington rate, producing an outflow, which releases a flare of energy. When the fallback rate subsides below the Eddington rate, the gas accretes onto the black hole via accretion disk. The LSST simulation framework enables us to simulate observations of different types of objects with the LSST. In this work, we include TDEs in the LSST simulation framework, estimate the number of detected TDEs, and simulate their light curves using a theoretical model, which predicts a t^(-2.6) light curve decline with time in the outflow phase and a t^{-0.4} decline in the disk phase. We also take a closer look at the distribution of the detected TDEs over cosmological redshift and black hole mass.
Keywords: Astronomical observations, Large Synoptic Survey Telescope, Tidal Disruption Events, Black Holes, simulations
Published in RUNG: 17.10.2017; Views: 4292; Downloads: 0
This document has many files! More... |
12. Design of a prototype device to calibrate the Large Size Telescope camera of the Cherenkov Telescope ArrayM. Iori, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), large-size telescope (LST) design for CTA, LST camera calibration
Published in RUNG: 26.01.2017; Views: 3565; Downloads: 212
 Full text (341,27 KB) |
13. Development of the photomultiplier tube readout system for the first Large-Sized Telescope of the Cherenkov Telescope ArrayShu Masuda, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), Large-Sized Telescope (LST), imaging camera, readout system
Published in RUNG: 24.03.2016; Views: 4612; Downloads: 309
Full text (927,35 KB) |
14. Development of Slow Control Boards for the Large Size Telescopes of the Cherenkov Telescope ArrayDaniela Hadasch, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), imaging camera, slow control board (SCB)
Published in RUNG: 21.03.2016; Views: 4346; Downloads: 195
Full text (4,05 MB) |
15. The Optical System for the Large Size Telescope of the Cherenkov Telescope ArrayM. Hayashida, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), optical system, active mirror control system
Published in RUNG: 21.03.2016; Views: 4489; Downloads: 220
Full text (1,10 MB) |
16. Prototyping of Hexagonal Light Concentrators for the Large-Sized Telescopes of the Cherenkov Telescope ArrayAkira Okumura, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), Large-Sized Telescopes (LST), imaging camera, focal plane light concentrators
Published in RUNG: 21.03.2016; Views: 4366; Downloads: 210
Full text (1,51 MB) |
17. Status of the Cherenkov Telescope Array's Large Size TelescopesJuan Cortina, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), design requirements, element prototyping, installation and operation plans
Published in RUNG: 16.03.2016; Views: 4208; Downloads: 223
Full text (5,17 MB) |
18. Large-Scale Distribution of Arrival Directions of Cosmic Rays Detected at the Pierre Auger Observatory and the Telescope Array above 10[sup]19 eVOlivier Deligny, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Abstract: The large-scale distribution of arrival directions of
high-energy cosmic rays is a key observable in attempts to
understanding their origin. The dipole and quadrupole moments
are of special interest in revealing potential anisotropies.
An unambiguous measurement of these moments as well as
of the full set of spherical harmonic coefficients requires
full-sky coverage. This can be achieved by combining data from
observatories located in both the northern and southern
hemispheres. To this end, a joint analysis using data recorded
at the Pierre Auger Observatory and the Telescope Array above
10[sup]19 eV has been performed. Thanks to the full-sky
coverage, the measurement of the dipole moment reported in
this study does not rely on any assumption on the underlying
flux of cosmic rays. As well, the resolution on the quadrupole
and higher order moments is the best ever obtained. The
resulting multipolar expansion of the flux of cosmic rays
allows a series of anisotropy searches to be performed,
and in particular to report on the first angular power
spectrum of cosmic rays. This allows a comprehensive
description of the angular distribution of cosmic rays
above 10[sup]19 eV.
Keywords: Pierre Auger Observatory, Telescope Array, high-energy cosmic rays, large-scale anisotropies, angular power spectrum
Published in RUNG: 08.03.2016; Views: 4470; Downloads: 189
Full text (462,61 KB) |
