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The search for antideuterons in cosmic rays has been proposed as a promising channel for dark matter indirect detection, especially for dark matter particles with a low or intermediate mass. With the current operational phase of the AMS-02…

High Energy Physics - Phenomenology · Physics 2017-07-26 N. Fornengo , L. Maccione , A. Vittino

The Alpha Magnetic Spectrometer (AMS), whose final version AMS-02 is to be installed on the International Space Station (ISS) for at least 3 years, is a detector designed to measure charged cosmic ray spectra with energies up to the TeV…

Astrophysics · Physics 2007-10-05 Luísa Arruda , Fernando Barão , Rui Pereira

Gas detectors are one of the pillars of the research in fundamental physics. Since many years, a new concept of detectors, the Micro Pattern Gas Detectors, allows to overcome many of the problems of other types of commonly used detectors,…

A method based on Generative Adversaria! Networks (GANs) is developed for disentangling the physical (effective temperature and gravity) and chemical (metallicity, overabundance of a-elements with respect to iron) atmospheric properties in…

Instrumentation and Methods for Astrophysics · Physics 2025-02-26 Minia Manteiga , Raúl Santoveña , Marco A. Álvarez , Carlos Dafonte , Manuel G. Penedo , Silvana Navarro , Luis Corral

The Galactic O-Star Spectroscopic Survey (GOSSS) is an ambitious project that is observing all known Galactic O stars with B < 13 in the blue-violet part of the spectrum with R-2500. It is based on version 2 of the most complete catalog to…

Instrumentation and Methods for Astrophysics · Physics 2011-01-19 Alfredo Sota , Jesús Maíz Apellániz

The presence of tau leptons in the final state is an important signature in many Higgs boson and SUSY searches. With the ATLAS detector, hadronically decaying tau leptons can be reconstructed in a wide range of transverse energies. The…

High Energy Physics - Experiment · Physics 2019-08-13 Stan Lai , Anna Kaczmarska

The first lithium-drifted silicon (Si(Li)) detectors to satisfy the unique geometric, performance, and cost requirements of the General Antiparticle Spectrometer (GAPS) experiment have been produced by Shimadzu Corporation. The GAPS Si(Li)…

Positron Annihilation Lifetime Spectroscopy (PALS) allows examining structure of materials in nano and sub-nanometer scale. This technique is based on the lifetime and intensity of ortho-positronium atoms in free volumes of given…

Medical Physics · Physics 2020-01-29 Ewelina Kubicz

The Alpha Magnetic Spectrometer (AMS), to be installed on the International Space Station, will provide data on cosmic radiations in a large energy range. The main physics goals in the astroparticle domain are the antimatter and the dark…

Astrophysics · Physics 2007-05-23 Diego Casadei

GRAMS (Gamma-Ray and AntiMatter Survey) is a novel project that can simultaneously target both astrophysical observations with MeV gamma rays and an indirect dark matter search with antimatter. The GRAMS instrument is designed with a…

High Energy Astrophysical Phenomena · Physics 2019-12-06 Tsuguo Aramaki , Per Hansson Adrian , Georgia Karagiorgi , Hirokazu Odaka

The Alpha Magnetic Spectrometer (AMS), to be installed on the International Space Station, will provide data on cosmic radiations in the energy range from 0.5 GeV to 3 TeV. The main physics goals are the anti-matter and the dark matter…

Astrophysics · Physics 2007-05-23 S. Di Falco

Context. The Gaia ESA mission will estimate the astrometric and physical data of more than one billion objects, providing the largest and most precise catalog of absolute astrometry in the history of Astronomy. The core of this process, the…

Instrumentation and Methods for Astrophysics · Physics 2018-11-28 Alberto Vecchiato , Beatrice Bucciarelli , Mario G. Lattanzi , Ugo Becciani , Luca Bianchi , Ummi Abbas , Eva Sciacca , Rosario Messineo , Ruben De March

Cosmic rays are an important tool to study dark matter annihilation in our Galaxy. Recently, a possible hint for dark matter annihilation was found in the antiproton spectrum measured by AMS-02, even though the result might be affected by…

High Energy Astrophysical Phenomena · Physics 2018-05-23 Michael Korsmeier , Fiorenza Donato , Nicolao Fornengo

The search for an excess of antideuterons in the cosmic rays flux has been proposed as a very promising channel for dark matter indirect detection, especially for WIMPs with a low or intermediate mass. With the development of the AMS…

High Energy Physics - Phenomenology · Physics 2015-06-17 A. Vittino , N. Fornengo , L. Maccione

The large angular and momentum acceptance magnetic spectrometer VAMOS++, at GANIL, France, is frequently used for nuclear structure and reaction dynamics studies. It provides an event-by-event identification of heavy ions produced in…

Instrumentation and Detectors · Physics 2023-07-12 A. Lemasson , M. Rejmund

We present a machine learning model to classify Active Galactic Nuclei (AGN) and galaxies (AGN-galaxy classifier) and a model to identify type 1 (optically unabsorbed) and type 2 (optically absorbed) AGN (type 1/2 classifier). We test…

Astrophysics of Galaxies · Physics 2021-12-08 Serena Falocco , Francisco J. Carrera , Josefin Larsson

GATR (Globally-scalable Automated Target Recognition) is a Lockheed Martin software system for real-time object detection and classification in satellite imagery on a worldwide basis. GATR uses GPU-accelerated deep learning software to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Gary Chern , Austen Groener , Michael Harner , Tyler Kuhns , Andy Lam , Stephen O'Neill , Mark Pritt

Cosmic crystallography is based on the principle that peaks in the pair separation histogram (PSH) of objects in a catalogue should be induced by the high number of topologically lensed pairs that are separated by Clifford translations, in…

Astrophysics · Physics 2011-07-19 Andrzej Marecki , Boudewijn F. Roukema , Stanislaw Bajtlik

Using an eigenspectrum decomposition technique, we separate the host galaxy from the broad line active galactic nucleus (AGN) in a set of 4666 spectra from the Sloan Digital Sky Survey (SDSS), from redshifts near zero up to about 0.75. The…

The extreme extinction ($A_V\sim30$\,mag) and its variation on arc-second scales towards the Galactic centre hamper the study of its stars. Their analysis is restricted to the near infrared (NIR) regime, where the extinction curve can be…

Astrophysics of Galaxies · Physics 2021-09-22 Francisco Nogueras-Lara , Rainer Schödel , Nadine Neumayer