Zobrazeno 1 - 10
of 771
pro vyhledávání: '"Bargiacchi, A."'
Several correlations among Gamma-Ray Bursts (GRBs) quantities, both in the prompt and afterglow emissions, have been established during the last decades, thus enabling the standardization of GRBs as cosmological probes. Since GRBs are observed up to
Externí odkaz:
http://arxiv.org/abs/2408.10707
Publikováno v:
Reinforcement Learning Journal, vol. 1, no. 1, 2024, pp. TBD
In key real-world problems, full state information is sometimes available but only at a high cost, like activating precise yet energy-intensive sensors or consulting humans, thereby compelling the agent to operate under partial observability. For thi
Externí odkaz:
http://arxiv.org/abs/2407.18812
Autor:
Trefoloni, Bartolomeo, Lusso, Elisabeta, Nardini, Emanuele, Risaliti, Guido, Marconi, Alessandro, Bargiacchi, Giada, Sacchi, Andrea, Signorini, Matilde
Publikováno v:
A&A 689, A109 (2024)
A sample of quasars has been recently assembled to investigate the non-linear relation between their monochromatic luminosities at 2500{\AA}, and 2 keV and to exploit quasars as a new class of standardized candles. The use of this technique for cosmo
Externí odkaz:
http://arxiv.org/abs/2404.07205
Autor:
Dainotti, Maria Giovanna, Bargiacchi, Giada, Lenart, Aleksander Łukasz, Capozziello, Salvatore
Although the $\Lambda$ Cold Dark Matter model is the most accredited cosmological model, information at high redshifts ($z$) between type Ia supernovae ($z=2.26$) and the Cosmic Microwave Background ($z=1100$) is crucial to validate this model furthe
Externí odkaz:
http://arxiv.org/abs/2401.11998
Autor:
Signorini, Matilde, Risaliti, Guido, Lusso, Elisabeta, Nardini, Emanuele, Bargiacchi, Giada, Sacchi, Andrea, Trefoloni, Bartolomeo
Publikováno v:
A&A 687, A32 (2024)
A characteristic feature of quasars is the observed non-linear relationship between their monochromatic luminosities at rest-frame 2500 {\AA} and 2 keV. This relationship is evident across all redshifts and luminosities and, due to its non-linearity,
Externí odkaz:
http://arxiv.org/abs/2312.08448
Autor:
Alessandro Barbato, Giulia Gori, Michele Sacchini, Francesca Pochiero, Sara Bargiacchi, Giovanna Traficante, Viviana Palazzo, Lucia Tiberi, Claudia Bianchini, Davide Mei, Elena Parrini, Tiziana Pisano, Elena Procopio, Renzo Guerrini, Angela Peron, Stefano Stagi
Publikováno v:
Endocrine Connections, Vol 13, Iss 10, Pp 1-9 (2024)
Context: Cytochrome C oxidase (COX) is the fourth component of the respiratory chain and is located within the internal membrane of mitochondria. COX deficiency causes an inherited mitochondrial disease with significant genetic and phenotypic heterog
Externí odkaz:
https://doaj.org/article/da9af13106284280995323cb873fffae
The longstanding search for the cosmological model that best describes the Universe has been made more intriguing since the recent discovery of the Hubble constant, $H_{0}$, tension observed between the value of $H_{0}$ from the Cosmic Microwave Back
Externí odkaz:
http://arxiv.org/abs/2307.15359
Autor:
Signorini, Matilde, Risaliti, Guido, Lusso, Elisabeta, Nardini, Emanuele, Bargiacchi, Giada, Sacchi, Andrea, Trefoloni, Bartolomeo
Publikováno v:
A&A 676, A143 (2023)
Context: A non-linear relation between quasar monochromatic luminosities at 2500A and 2 keV holds at all observed redshifts and luminosities, and it has been used to derive quasar distances and to build a Hubble Diagram of quasars. The choice of the
Externí odkaz:
http://arxiv.org/abs/2306.16438
Autor:
Dainotti, Maria Giovanna, Bargiacchi, Giada, Lenart, Aleksander Łukasz, Nagataki, Shigehiro, Capozziello, Salvatore
Currently, the $\Lambda$ Cold Dark Matter model, which relies on the existence of cold dark matter and a cosmological constant $\Lambda$, best describes the Universe. However, we lack information in the high-redshift ($z$) region between Type Ia Supe
Externí odkaz:
http://arxiv.org/abs/2305.19668
Autor:
Dainotti, Maria Giovanna, Bargiacchi, Giada, Bogdan, Małgorzata, Lenart, Aleksander Łukasz, Iwasaki, Kazunari, Capozziello, Salvatore, Zhang, Bing, Fraija, Nissim
Cosmological models and their parameters are widely debated, especially about whether the current discrepancy between the values of the Hubble constant, $H_{0}$, obtained by type Ia supernovae (SNe Ia), and the Planck data from the Cosmic Microwave B
Externí odkaz:
http://arxiv.org/abs/2305.10030