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Related papers: A simple determination of the halo size $L$ from $…

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The vertical diffusive halo size of the Galaxy, $L$, is a key parameter for dark matter indirect searches. It can be better determined thanks to recent AMS-02 data. We set constraints on $L$ from Be/B and $^{10}$Be/Be data, and we performed…

High Energy Astrophysical Phenomena · Physics 2020-07-16 N. Weinrich , M. Boudaud , L. Derome , Y. Génolini , J. Lavalle , D. Maurin , P. Salati , P. Serpico , G. Weymann-Despres

The Be isotopic measurements preliminarily reported by the AMS-02 Collaboration have reached an unprecedented energy of 12 GeV/$n$. As secondary cosmic rays (CRs), the Be isotopes include both stable and unstable species, which are crucial…

High Energy Astrophysical Phenomena · Physics 2024-02-08 Meng-Jie Zhao , Xiao-Jun Bi , Kun Fang , Peng-Fei Yin

The AMS-02 experiment is measuring the high energy charged cosmic rays with unprecedented accuracy. We explore the possibility of determining the cosmic-ray propagation models using the AMS-02 data $alone$. A global Bayesian analysis of the…

High Energy Physics - Phenomenology · Physics 2015-09-30 Hong-Bo Jin , Yue-Liang Wu , Yu-Feng Zhou

The flux of unstable secondary cosmic ray nuclei, produced by spallation processes in the interstellar medium, can be used to constrain the residence time of cosmic rays inside the Galaxy. Among them, $^{10}$Be is especially useful because…

High Energy Astrophysical Phenomena · Physics 2020-01-29 Carmelo Evoli , Giovanni Morlino , Pasquale Blasi , Roberto Aloisio

High-precision data from AMS-02 on Li, Be, and B provide the best constraints on Galactic cosmic-ray transport parameters. We re-evaluate the impact of Fe fragmentation on the Li, Be, and B modelling. We discuss the consequences on the…

High Energy Astrophysical Phenomena · Physics 2022-11-30 D. Maurin , E. Ferronato Bueno , Y. Génolini , L. Derome , M. Vecchi

The height of the Milky Way diffusion halo, above which cosmic-rays can freely escape the galaxy, is among the most critical, yet poorly known, parameters in cosmic-ray physics. Measurements of radioactive secondaries, such as $^{10}$Be or…

Astrophysics of Galaxies · Physics 2024-08-27 Pedro De La Torre Luque , Tim Linden

The AMS-02 experiment measured several secondary-to-primary ratios enabling a detailed study of Galactic cosmic-ray transport. We constrain previously derived benchmark scenarios (based on AMS-02 B/C data only) using other…

High Energy Astrophysical Phenomena · Physics 2020-07-22 Nathanael Weinrich , Yoann Génolini , Mathieu Boudaud , Laurent Derome , David Maurin

Observations of light isotopes in cosmic rays provide valuable information on their origin and propagation in the Galaxy. Using the data collected by the AMS-01 experiment in the range ~0.2-1.5 GeV/nucleon, we compare the measurements on…

High Energy Astrophysical Phenomena · Physics 2012-10-30 N. Tomassetti

We present an updated version of the HMcode augmented halo model that can be used to make accurate predictions of the non-linear matter power spectrum over a wide range of cosmologies. Major improvements include modelling of BAO damping in…

Cosmology and Nongalactic Astrophysics · Physics 2021-01-27 Alexander Mead , Samuel Brieden , Tilman Tröster , Catherine Heymans

Microlensing observations can be used for determining the shape of the Milky Way's halo. It can be shown that the data are best described with moderately flattened halo, 0.5 < q < 0.6. We discuss, by taking into account this result, the…

Astrophysics · Physics 2007-05-23 Vesna Milosevic-Zdjelar , Srdjan Samurovic , Milan M. Cirkovic

Clustering of large-scale structure provides significant cosmological information through the power spectrum of density perturbations. Additional information can be gained from higher-order statistics like the bispectrum, especially to…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-09 Marcel Schmittfull , Tobias Baldauf , Uroš Seljak

On-going measurements of the cosmic radiation (nuclear, electronic, and gamma-ray) are shedding new light on cosmic-ray physics. A comprehensive picture of these data relies on an accurate determination of the transport and source…

High Energy Astrophysical Phenomena · Physics 2010-07-08 A. Putze , L. Derome , D. Maurin

HELIX is a new NASA-sponsored instrument aimed at measuring the spectra and composition of light cosmic-ray isotopes from hydrogen to neon nuclei, in particular the clock isotopes 10Be (radioactive, with 1.4 Myr lifetime) and 9Be (stable).…

We use a new version of our numerical model for particle propagation in the Galaxy to study radioactive secondaries. For evaluation of the production cross sections we use the Los Alamos compilation of all available experimental cross…

Astrophysics · Physics 2007-05-23 I. V. Moskalenko , S. G. Mashnik , A. W. Strong

We present two different halo-independent methods to assess the compatibility of several direct dark matter detection data sets for a given dark matter model using a global likelihood consisting of at least one extended likelihood and an…

High Energy Physics - Phenomenology · Physics 2016-10-26 Graciela B. Gelmini , Ji-Haeng Huh , Samuel J. Witte

Current measurements of cosmic-ray fluxes have reached unprecedented accuracy thanks to the new generation of experiments, and in particular the AMS-02 mission. At the same time, significant progress has been made in the propagation models…

High Energy Astrophysical Phenomena · Physics 2021-04-08 Pedro de la Torre Luque , Mario Nicola Mazziotta , Francesco Loparco , Fabio Gargano , Davide Serini

Computing and using opacities is a key part of modeling and interpreting data of exoplanetary atmospheres. Since the underlying spectroscopic line lists are constantly expanding and currently include up to ~ 10^10 - 10^11 transition lines,…

One of the most powerful tools in the arsenal of theoretical cosmologists is the halo model of large scale structure, which provides a phenomenological description of nonlinear structure in our universe. However, it is well known that there…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-27 Alice Y. Chen , Niayesh Afshordi

We introduce a new technique to constrain the line-of-sight integrated electron density of our Galactic halo $\text{DM}_\text{MW,halo}$ through analysis of the observed dispersion measure distributions of pulsars $\text{DM}_\text{pulsar}$…

Astrophysics of Galaxies · Physics 2020-06-09 E. Platts , J. Xavier Prochaska , Casey J. Law

We model the abundance of haloes in the $\sim(3 \ \text{Gpc}/h)^3$ volume of the MICE Grand Challenge simulation by fitting the universal mass function with an improved Jack-Knife error covariance estimator that matches theory predictions.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-24 Kai Hoffmann , Julien Bel , Enrique Gaztanaga
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