| 1. |
- Acciari, V.A., et al.
(författare)
-
Monitoring the magnetar SGR 1935+2154 with the MAGIC telescopes
- 2022
-
Ingår i: Proceedings of Science. - 1824-8039. ; 395
-
Konferensbidrag (refereegranskat)abstract
- The Galactic magnetar SGR 1935+2154 was associated with a bright, millisecond-timescale fast radio burst (FRB) which occured in April 2020, during a flaring episode. This was the first time an FRB was unequivocally associated with a Galactic source, and the first FRB for which the nature of the emitting source was identified. Moreover, it was the first FRB with a counterpart at another wavelength correlated in time, an atypical, hard X-ray burst, which provides clear evidence for accompanying non-thermal processes. The MAGIC Telescopes are Imaging Air Cherenkov Telescopes (IACTs) sensitive to very-high-energy (VHE, E>100 GeV) gamma rays. Located at the center of the camera lies the MAGIC Central pixel, a single fully-modified photosensor-toreadout chain to measure millisecond-duration optical signals, displaying a maximum sensitivity at a wavelength of 350 nm. This allows MAGIC to operate simultaneously both as a VHE gammaray and a fast optical telescope. The MAGIC telescopes have monitored SGR 1935+2154 in a multiwavelength campaign involving X-ray, radio and optical facilities. In this contribution, we will show the results on the search for the VHE counterpart of the first SGR-FRB source in this multiwavelength context, as well as the search for fast optical bursts with the MAGIC Central Pixel.
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
- Guédez, Rafael, et al.
(författare)
-
Design Of A 2 Mw Molten Salt Driven Supercritical Co2 Cycle And Turbomachinery For The Solarsco2Ol Demonstration Project
- 2022
-
Ingår i: Proceedings of the ASME Turbo Expo. - : ASME International.
-
Konferensbidrag (refereegranskat)abstract
- Supercritical CO2 (sCO2) power cycles have been identified as technology enablers for increasing the cost-competitiveness of Concentrating Solar Power (CSP) plants. Compared to steam cycles, sCO2 cycles have the advantage of allowing higher inlet turbine temperatures, while also deploying turbomachinery that can be a ten-fold more compact. Ongoing research in CSP focuses mainly in developing new receiver and storage concepts able to withstand such required higher temperatures, alongside new heat exchangers that enable coupling to a sCO2 cycle. Meanwhile, advancements in sCO2 turbomachinery have taken place in research projects aimed at investigating the technical feasibility of the cycle, including the optimized design of its individual components and new cycle configurations. Among these, only few focus in demonstrating a full-integrated system, including cycle control and dynamics, and only two worldwide have started plans for MW-scale pilots, none of them in Europe. The EU-funded SOLARSCO2OL project aims at demonstrating a first-of-a-k ind 2 MW gross simple-recuperated sCO2 Brayton cycle driven by heat provided by molten salt s similar to those deployed in commercial CSP plants, which are able to operate at temperatures of up to 580°C. This paper introduces the project objectives and implementation plan, to then focus primarily on the results derived from the first year in specific relation to the conceptual design of each of 2 MW scale power cycle and its k ey components, including also the proposed integration and operational regimes, expected thermod ynamic performance at nominal point, and up-scaling considerations.
|
|
| 6. |
- Savenkov, Eugene
(författare)
-
Virgaviruses (Virgaviridae)
- 2021
-
Ingår i: Encyclopedia of Virology. - 9780128145159 ; , s. 839-851
-
Bokkapitel (refereegranskat)
|
|
