171. Development of the optical system for the SST-1M telescope of the Cherenkov Telescope Array observatoryK. Seweryn, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), small-size telescope (SST) for CTA, Davies-Cotton single-mirror design, optical system
Objavljeno v RUNG: 04.01.2017; Ogledov: 4035; Prenosov: 200
 Celotno besedilo (978,78 KB) |
172. INFN Camera demonstrator for the Cherenkov Telescope ArrayG. Ambrosi, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), small-size telescope design for CTA, dual-mirror Schwarzschild-Couder optical design, silicon photomultiplier (SiPM) based camera
Objavljeno v RUNG: 04.01.2017; Ogledov: 4518; Prenosov: 232
Celotno besedilo (1,61 MB) |
173. Search for UHE neutrinos – in coincidence with LIGO GW150914 event – with the Pierre Auger ObservatoryLili Yang, 2016, objavljeni povzetek znanstvenega prispevka na konferenci Opis: The first gravitational wave transient GW150914 was observed by Advanced LIGO on September 14th, 2015 at 09:50:45 Universal Time. In addition to follow-up electromagnetic observations, the detection of neutrinos will probe deeply and more on the nature of astrophysical sources, especially in the ultra-high energy regime. Neutrinos in the EeV energy range were searched in data collected at the surface detector of the Pierre Auger Observatory within ± 500 s and 1 day after the GW150914 event. No neutrino candidates were found. Based on this non-observation, we derive the first and only one neutrino fluence upper limit at EeV energies for this event at 90% CL, and report constraints on existence of accretion disk around mergers.
Ključne besede: gravitational waves, neutrinos, black hole physics
Objavljeno v RUNG: 06.12.2016; Ogledov: 5170; Prenosov: 0
Gradivo ima več datotek! Več... |
174. GRB neutrino limits from AugerLili Yang, prispevek na konferenci brez natisa Opis: In this talk, I will talk about the searching for UHE neutrinos at Pierre Auger Observatory (PAO). Since no neutrino candidates is found so far. We have set the most stringent limits to point-like sources and Gamma-Ray-Bursts (GRB) of UHEν. I will also update the process of neutrino search results for PAO.
Ključne besede: neutrinos, Pierre Auger Observatory, GRB
Objavljeno v RUNG: 06.12.2016; Ogledov: 4682; Prenosov: 0
Gradivo ima več datotek! Več... |
175. Multi-messenger study of the Fermi BubblesLili Yang, predavanje na tuji univerzi Opis: The Fermi Bubbles have been imaged in sub-TeV gamma rays at Fermi-LAT, and, if their origin is hadronic, they might have been seen with low statistics in ∼0.1−1 PeV neutrinos at IceCube. I discuss the detectability of these objects at the new High Altitude Water Cherenkov (HAWC). HAWC will view the North Bubble for ∼2−3 hours a day, and will map its spectrum at 0.1-100 TeV. For the hard primary proton spectrum required to explain five events at IceCube, a high significance detection at HAWC will be achieved in less than 30 days. I will discuss how the combination of results at HAWC and IceCube will substantiate the hadronic model, or constrain its spectral parameters and how sensitive Cherenkov Telescope Array(CTA) is to the bubbles.
Ključne besede: Fermi Bubbles, neutrinos, HAWC
Objavljeno v RUNG: 06.12.2016; Ogledov: 4906; Prenosov: 0
Gradivo ima več datotek! Več... |
176. High Energy AstrophysicsLili Yang, prispevek na konferenci brez natisa Opis: I was invited as a lecturer at the Sumer School on Astrophysics and Astroparticles in Petnica Serbia. I gave talks on "High Energy Astrophysics", where I mainly focused on the production, propagation and detection of high energy astroparticles. Especially, I introduced the current experiments and technique and facilities.
Ključne besede: High-energy astroparticles, experiments, detection, production
Objavljeno v RUNG: 06.12.2016; Ogledov: 5553; Prenosov: 0
Gradivo ima več datotek! Več... |
177. High Energy Emission from Gamma Ray BurstsLili Yang, predavanje na tuji univerzi Opis: Gamma Ray Bursts (GRBs) are the most energetic explosions in the universe, and they have been proposed as the most promising candidate sources of ultra-high energy cosmic rays (UHECRs). As a result of interactions of UHECR within the host environment and during their propagation towards Earth, high energy neutrinos and photons are also expected from both prompt and afterglow emission. In this talk, I will review the standard theory of particle acceleration and production in a GRB fireball, and multi-wavelength and multi-messeger observations of GRB emission. I will present the prediction of PeV — EeV neutrino production and evidence of GeV gamma ray radiation, and the expected detection in IceCube, Pierre Auger Observatory and CTA (the next generation of Imaging Atmospheric Cherenkov Telescopes). The investigation of high-energy particles will provide insight into the nature and complicated mechanisms of GRBs.
Ključne besede: Gamma-Ray Bursts, high-energy emission, blastwave afterglow
Objavljeno v RUNG: 06.12.2016; Ogledov: 4903; Prenosov: 0
Gradivo ima več datotek! Več... |
178. High-energy Astroparticle DetectionLili Yang, predavanje na tuji univerzi Opis: Astroparticle Physics has evolved as a new interdisciplinary field at the intersection of particle physics, astronomy and cosmology, addressing some of the most fundamental questions of contemporary physics. As the cosmic messengers, neutrinos, cosmic rays, gamma rays and also gravitational waves, take the information from the universe to tell us more about the story. Physicists have been developing experiments to detect and study these messengers. I would like to talk about the basic ideas and searching results from the dedicate cosmic ray detector Pierre Auger Observatory and also the future performance of Cherenkov Telescope Array (CTA), the next-generation ground based telescope array. CTA will play an very important role in detecting GeV-TeV gamma rays and represents the era of precision gamma ray astronomy. The multi-messenger and multi-wavelength study with various messengers are the main field in astrophysics.
Ključne besede: High-energy astroparticles, CTA, Pierre Auger Observatory
Objavljeno v RUNG: 06.12.2016; Ogledov: 4737; Prenosov: 0
Gradivo ima več datotek! Več... |
179. Ultrahigh energy neutrino follow-up of Gravitational Wave Event GW150914 with the Pierre Auger ObservatoryJaime Alvarez-Muňiz, Francisco Pedreira, Zlatka Zas, Pablo Pieroni, Marta Trini, Lili Yang, elaborat, predštudija, študija Ključne besede: UHE neutrinos, SD detector, Gravitational Waves
Objavljeno v RUNG: 29.11.2016; Ogledov: 5334; Prenosov: 0
Gradivo ima več datotek! Več... |
180. Evidence for a mixed mass composition at the ‘ankle’ in the cosmic-ray spectrumA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2016, izvirni znanstveni članek Ključne besede: ultra-high energy cosmic rays (UHECR), UHECR mass composition, UHECR energy spectrum, Pierre Auger Observatory, composition studies at the ‘ankle’ region in the UHECR spectrum
Objavljeno v RUNG: 25.11.2016; Ogledov: 4728; Prenosov: 180
Celotno besedilo (1,73 MB) |
