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Naslov: Depth of maximum of air-shower profiles above ▫$10^{17.8}$▫ eV measured with the fluorescence detector of the Pierre Auger Observatory and mass-composition implications Avtorji: ID Fitoussi, Thomas (Avtor) ID Filipčič, Andrej (Avtor) ID Lundquist, Jon Paul (Avtor) ID Shivashankara, Shima Ujjani (Avtor) ID Stanič, Samo (Avtor) ID Vorobiov, Serguei (Avtor) ID Zavrtanik, Danilo (Avtor) ID Zavrtanik, Marko (Avtor), et al. Datoteke: https://pos.sissa.it/444/3198/pdf   https://pos.sissa.it/444/3198/pdf   ICRC2023_319.pdf (1,16 MB) MD5: 75ED3FC2EF96CD0A342F7E54B03AA521   To gradivo ima še več datotek. Celoten seznam je na voljo spodaj. Jezik: Angleški jezik Vrsta gradiva: Neznano Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci Organizacija: UNG - Univerza v Novi Gorici Opis: After seventeen years of operation, the first phase of measurements at the PierreAuger Observatory finished and the process of upgrading it began. In this work, we present distributions of the depth of air-shower maximum, �max, using profiles measured with the fluorescence detector of the Pierre Auger Observatory. The analysis is based on the Phase I data collected from 01 December 2004 to 31 December 2021. The �max measurements take advantage of an improved evaluation of the vertical aerosol optical depth and reconstruction of the shower profiles. We present the energy dependence of the mean and standard deviation of the �max distributions above 10^(17.8) eV. Both �max moments are corrected for detector effects and interpreted in terms of the mean logarithmic mass and variance of the masses by comparing them to the predictions of post-LHC hadronic interaction models. We corroborate our earlier findings regarding the change of the elongation rate of the mean �max at 10^(18.3) eV with higher significance. We also confirm, with four more years of data compared to the last results presented in 2019, that around the ankle in the cosmic rays spectrum, the proton component gradually disappears and that intermediate mass nuclei dominate the composition at ultra-high energies. Ključne besede: ultra-high energy cosmic rays, Pierre Auger Observatory, protons, surface detector Status publikacije: Objavljeno Verzija publikacije: Objavljena publikacija Datum objave: 01.01.2023 Leto izida: 2023 Št. strani: str. 1-13 PID: 20.500.12556/RUNG-8792-aff4d424-3f7e-61b8-509c-8270db926318  COBISS.SI-ID: 182074883  UDK: 52 ISSN pri članku: 1824-8039 DOI: 10.22323/1.444.0319  NUK URN: URN:SI:UNG:REP:XSVE4HLF Datum objave v RUNG: 23.01.2024 Število ogledov: 1316 Število prenosov: 8 Metapodatki:    Citiraj gradivo Navadno besedilo BibTeX EndNote XML EndNote/Refer RIS ABNT ACM Ref AMA APA Chicago 17th Author-Date Harvard IEEE ISO 690 MLA Vancouver : Kopiraj citat

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Gradivo je del zbornika

Naslov:	38th International Cosmic Ray Conference [also] ICRC2023
COBISS.SI-ID:	162195971

Gradivo je del revije

Naslov:	Proceedings of science
Skrajšan naslov:	Pos proc. sci.
Založnik:	Sissa
ISSN:	1824-8039
COBISS.SI-ID:	20239655

Gradivo je financirano iz projekta

Financer:	ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:	P1-0031
Naslov:	Večglasniška astrofizika

Licence

Licenca:	CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:	http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:	Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

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