1. The Cherenkov Telescope Array. Science Goals and Current StatusRene A. Ong, Christopher Eckner, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, published scientific conference contribution (invited lecture) Abstract: The Cherenkov Telescope Array (CTA) is the major ground-based gamma-ray observatory planned for the next decade and beyond. Consisting of two large atmospheric Cherenkov telescope arrays (one in the southern hemisphere and one in the northern
hemisphere), CTA will have superior angular resolution, a much wider energy range, and
approximately an order of magnitude improvement in sensitivity, as compared to existing instruments. The CTA science programme will be rich and diverse, covering cosmic particle acceleration, the astrophysics of extreme environments, and physics frontiers beyond the Standard Model. This paper outlines the science goals for CTA and covers the current status of the project. Keywords: very-high-energy gamma-ray astronomy, Cherenkov Telescope Array (CTA), cosmic particle acceleration, astrophysics of extreme environments, physics beyond the Standard Model Published in RUNG: 11.10.2023; Views: 747; Downloads: 7 Full text (3,28 MB) This document has many files! More... |
2. Gravity wave instability structures and turbulence from more than 1.5 years of OH[ast] airglow imager observations in SloveniaRené Sedlak, Patrick Hannawald, Carsten Schmidt, Sabine Wüst, Michael Bittner, Samo Stanič, 2021, original scientific article Abstract: We analyzed 286 nights of data from the OH* airglow imager FAIM 3 (Fast Airglow IMager) acquired at Otlica Observatory, Slovenia, between 26 October 2017 and 6 June 2019. Measurements were performed with a spatial resolution of 24 m per pixel and a temporal resolution of 2.8 s. Multiple turbulence episodes were observed and the energy dissipation rate in the upper mesosphere/lower thermosphere region was estimated from image sequences in 25 cases. Values range around 0.08 and 9.03 W/kg and would lead to an approximated localized maximum heating of 0.03–3.02 K per turbulence event. Keywords: upper mesosphere, lower thermosphere, remote sensing, gravity waves, turbulence, Bora episodes Published in RUNG: 25.10.2021; Views: 1946; Downloads: 0 This document has many files! More... |
3. Orographic gravity waves in OH-airglow imaging systemsSabine Wuest, Jonas Till, René Sedlak, Patrick Hannawald, Carsten Schmidt, Samo Stanič, Michael Bittner, 2020, published scientific conference contribution abstract Abstract: Atmospheric dynamics is strongly influenced by waves on different scales. Airflow over mountains can lead to all kinds of atmospheric waves, planetary and gravity waves as well as infrasound. Under certain circumstances these waves can propagate through the atmosphere and lead to a re- distribution of energy. In the case of gravity waves, a stably stratified atmosphere is a mandatory requirement for their generation and vertical propagation. Additionally, the vertical propagation depends on the horizontal wind field. In the Alpine and pre-Alpine region, we currently operate five OH-airglow imaging systems, which allow the investigation of orographic gravity waves. Depending on tropo-, strato- and mesospheric wind and temperature, it is checked which wavelengths can propagate into the fields of view of our instruments. This is done for a whole year in order to take into account annual and semi- annual cycles in wind and temperature. Concerning the generation of gravity waves, we put our focus on our OH-airglow imager (FAIM) deployed at Otlica (45.9°N, 13.9°E), Slovenia. Here, we also have additional measurements of an OH-airglow spectrometer (GRIPS). In case studies, we investigate whether strong wind events (Bora) lead to strong gravity waves activity or enhanced potential energy density. Keywords: Orographic gravity waves, Bora, Otlica, Slovenia, OH-airglow imaging Published in RUNG: 08.10.2020; Views: 2593; Downloads: 0 This document has many files! More... |
4. Temna slika : Podoba, zgubljena v temiRawan F. A. Alhourani, 2018, master's thesis Abstract: Motivacija za to magistrsko delo je bilo avtoričino iskanje
podobe; prav določene podobe, izgubljene v najglobljih predelih
našega uma. Iskanje podobe, ki je nikoli nismo videli ali
doživeli; podobe, ki je še nihče nikoli ni videl, ter ob tem
izzvati čutila in človeško naravo v danem trenutku.
Namen dela je iskati odgovore in si zastaviti vprašanja o tem,
kako zelo ljudje zaupajo svojim čutom, ter se spraševati o
njihovi zmožnosti, da spremenijo svoje vedenje in svoje rutine.
Opazovati, ali si za nekaj sekund drznejo ugasniti luč in s tem
pridobijo sposobnost, da vidijo na drugačen način. Ne preseneča
dejstvo, da se ljudje močno zanašajo na svoj vid, zaradi česar
preostala čutila postanejo nekako manj pomembna in zanesljiva.
To delo z naslovom "Temna podoba – podoba, ki smo jo izgubili v
temi", raziskuje moč podobe pri manipulaciji množice in vlogo
medijev pri nadzoru in pranju možganov pripadnikom nove
generacije.
V magistrskem delu avtorica najprej predstavi projekte "Kumra
1", "Kumra 2" in "Kaj vidiš v temi?" – poskuse, izvedene v prvem
in drugem letu raziskovanja, skozi katere predstavi analizo in
opazovanje svojih eksperimentov. Ti predstavljajo začetek
raziskovanja čutil v popolni temi, ki je nato pripeljalo do
"Sestavljanke", praktičnega dela te naloge, ki se sprašuje o
medijski manipulaciji z uporabo podobe. Keywords: temna, nejasna, mračna, brez svetlobe, grozljiva, grozna, žalostna, zlobna, pomanjkanje svetlobe, slepa, globlje v odtenkih, ne svetla, skrita, skrivnostna, skrivnostna, brez moralne ali duhovne svetlobe, maligni, temničas, negativni, pesimistični, neprosvetljeni, temačnost, črnina, neznani, medijski nadzor, temna slika, družabni mediji, medijska manipulacija, propaganda, stereotip, pranje možganov Published in RUNG: 10.12.2018; Views: 4555; Downloads: 198 Full text (11,79 MB) This document has many files! More... |
5. Cherenkov Telescope Array: The Next Generation Gamma-ray ObservatoryRene A. Ong, Christopher Eckner, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Marko Zavrtanik, Danilo Zavrtanik, 2017, published scientific conference contribution Abstract: The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory,
investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging atmospheric Cherenkov telescopes in both the southern and northern hemispheres, will provide full-sky coverage and will achieve a sensitivity improved by up to an order of magnitude compared to existing instruments such as H.E.S.S., MAGIC and VERITAS. CTA is expected to discover hundreds of new TeV gammaray sources, allowing it to significantly advance our understanding of the origin of cosmic rays, to probe much larger distances in the universe, and to search for WIMP dark matter with unprecedented sensitivity in TeV mass range.
The development of CTA is being carried out by a worldwide consortium of scientists from
32 countries. Consortium scientists have developed the core scientific programme of CTA and
institutes of the Consortium are expected to provide the bulk of the CTA components. The
construction of CTA is overseen by the CTA Observatory that will in the future manage
observatory operations, the guest observer programme, and data dissemination.
This talk will review the scientific motivation for CTA, focusing on the key science projects
that form the core programme of research. The talk will outline the design of CTA, including the
science drivers, overall concept, performance optimization, and array layouts. The current
status of CTA, including sites, prototype telescope progress, and steps forward will also be
described. Keywords: CTA, next-generation gamma-ray observatory, gamma rays Published in RUNG: 16.02.2018; Views: 4028; Downloads: 140 Full text (1,35 MB) |
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7. An Artist Abroad : The influence of a change in surroundings on artistic creativityValerija Zabret, 2016, master's thesis Abstract: The motivation for this thesis was author’s experience as a traveling artists and questioning how experiences abroad influenced her artistic evolution. Nowadays, in the years of globalization and cross-border collaborations, it has become very common for artists to make international connections in order to seek inspiration, funds, connections, exhibition spaces, platforms on which to show their work, studios, workshops, and to establish an international career.
The idea of this thesis is to explore the phenomena of traveling artists through literature and analysis of the author’s personal experience and development as an artist in order to identify whether travel is a good practice that should be advised for emerging (or established) artists in order to evolve in their careers.
This thesis, “The Influence of a Change in Surroundings on Artistic Creativity,” questions how traveling influences artists and their creativity. It offers a historically overview of the subject and presents contemporary ways and opportunities for artists to travel and work in international environments.
In the second part of this thesis, the author presents poetical videos, the “An Artist Abroad – Video Poetry Series,” which were made during the research and through which the author expresses her feelings and observation of her new surroundings. Very personal and poetic work shows the progress and development in the author’s artistic practice, and it shows how new surroundings influenced her creative and production processes. Keywords: art, artist, artist abroad, artist residency, traveling artist, mobility, surroundings, change, creativity, influence, production, culture, global, contemporary art, video, poetry, series Published in RUNG: 25.02.2016; Views: 6811; Downloads: 159 Full text (7,21 MB) This document has many files! More... |
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