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2063. Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagationH. Abdalla, H. Abe, Fabio Acero, A. Acharyya, R. Adam, Christopher Eckner, Samo Stanič, Serguei Vorobiov, Gabrijela Zaharijas, Marko Zavrtanik, Danilo Zavrtanik, Miha Živec, 2021, izvirni znanstveni članek Opis: The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ astronomy, provides unique capabilities to address significant open questions in astrophysics, cosmology, and fundamental physics. We study some of the salient areas of γ cosmology that can be explored as part of the Key Science Projects of CTA, through simulated observations of active galactic nuclei (AGN) and of their relativistic jets. Observations of AGN with CTA will enable a measurement of γ absorption on the extragalactic background light with a statistical uncertainty below 15% up to a redshift z=2 and to constrain or detect γ halos up to intergalactic-magnetic-field strengths of at least 0.3 pG . Extragalactic observations with CTA also show promising potential to probe physics beyond the Standard Model. The best limits on Lorentz invariance violation from γ astronomy will be improved by a factor of at least two to three. CTA will also probe the parameter space in which axion-like particles could constitute a significant fraction, if not all, of dark matter. We conclude on the synergies between CTA and other upcoming facilities that will foster the growth of γ cosmology.
Ključne besede: Cherenkov Telescope Array, active galactic nuclei, gamma-ray experiments, axions, extragalactic magnetic fields
Objavljeno v RUNG: 02.03.2021; Ogledov: 2321; Prenosov: 71
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2066. Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centreA. Acharyya, R. Adam, C. Adams, I. Agudo, A. Aguirre-Santaella, Christopher Eckner, Samo Stanič, Serguei Vorobiov, Gabrijela Zaharijas, Marko Zavrtanik, Danilo Zavrtanik, Miha Živec, 2021, izvirni znanstveni članek Ključne besede: dark matter, gamma ray, astrophysics
Objavljeno v RUNG: 26.02.2021; Ogledov: 2434; Prenosov: 141
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2067. Skrivnosti prav posebnih zvezd, ki jim pravimo magnetarjiTomaž Zwitter, Nina Manfreda, Gabrijela Zaharijas, 2021, radijska ali televizijska oddaja, podkast, intervju, novinarska konferenca Ključne besede: gama žarki, astrofizika, nevronske zvezde
Objavljeno v RUNG: 26.02.2021; Ogledov: 2056; Prenosov: 10
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2068. Atomic layer deposition for the photoelectrochemical applicationsNadiia Pastukhova, Andraž Mavrič, Yanbo Li, 2021, pregledni znanstveni članek Opis: Substantial progress has been made in the photoelectrochemical (PEC) field to understand the photoelectrode behavior, semiconductor‐electrolyte interface, and photocorrosion, enabling new photoelectrode architectures with higher photocurrent, reduced photovoltage losses, and longer lifetime. Nevertheless, for practical PEC applications additional efforts are still needed to optimize all components of the photoelectrodes, including the light absorbing semiconductors, the layers for charge extraction, charge transfer, corrosion protection, and catalysis. In this regard, atomic layer deposition (ALD) offers new opportunities due to the monolayer‐by‐monolayer deposition approach, allowing preparation of conformal films with precisely controlled thickness and composition. As the ALD instruments are becoming widely accessible, this review aims to make an overview of the applications for photoelectrodes fabrication. The deposition of semiconductors onto flat and nano‐textured substrates, the deposition of ultrathin interlayers to ease charge transport by energy band alignment and surface states passivation, the deposition of corrosion protection layers, and finally, the possibilities for high catalyst dispersion is presented.
Ključne besede: atomic layer deposition, charge recombination, charge transfer, photocorrosion, photoelectrochemical water splitting
Objavljeno v RUNG: 25.02.2021; Ogledov: 2232; Prenosov: 139
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2069. When art gets more rigorous than science2020, radijska ali televizijska oddaja, podkast, intervju, novinarska konferenca Ključne besede: research, ethics, bioart, anthropocene, methodologies, mixed research, temporal community, learning by sharing, sonic film, sound art
Objavljeno v RUNG: 25.02.2021; Ogledov: 2168; Prenosov: 24
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2070. Data colonialism : highlighting socioeconomic disparity of indigenous people2020, radijska ali televizijska oddaja, podkast, intervju, novinarska konferenca Ključne besede: data sets, indigenous, heritage, ancestry, data ownership, artistic research, intermedia, identity, data science, coding
Objavljeno v RUNG: 25.02.2021; Ogledov: 2149; Prenosov: 19
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