Astroparticle Physics最新文献_第10页

Life cycle analysis of the GRAND experiment GRAND实验的生命周期分析

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-26 DOI: 10.1016/j.astropartphys.2023.102903

Leidy T. Vargas-Ibáñez , Kumiko Kotera , Odile Blanchard , Peggy Zwolinski , Alexis Cheffer , Mathieu Collilieux , Paul Lambert , Quentin Lefèbvre , Thomas Protois

{"title":"Life cycle analysis of the GRAND experiment","authors":"Leidy T. Vargas-Ibáñez , Kumiko Kotera , Odile Blanchard , Peggy Zwolinski , Alexis Cheffer , Mathieu Collilieux , Paul Lambert , Quentin Lefèbvre , Thomas Protois","doi":"10.1016/j.astropartphys.2023.102903","DOIUrl":"https://doi.org/10.1016/j.astropartphys.2023.102903","url":null,"abstract":"<div><p><span>The goal of our study is to assess the environmental impact of the installation and use of the Giant Radio Array for Neutrino Detection (GRAND) prototype detection units, based on the life cycle assessment (LCA) methodology, and to propose recommendations that contribute to reduce the environmental impacts of the project at later stages. The functional unit, namely the quantified description of the studied system and of the performance requirements it fulfils, is to detect radio signals autonomously during 20 years, with 300 detection units deployed over 200</span> <!-->km<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span><span> in the Gansu province in China (corresponding to the prototype GRANDProto300). We consider four main phases: the extraction of the materials and the production of the detection units (upstream phases), the use and the end-of-life phases (downstream phases), with transportation between each step. An inventory analysis is performed for the seven components of each detection unit, based on transparent assumptions. Most of the inventory data are taken from the Idemat2021 database (Industrial Design & Engineering Materials). Our results show that the components with the highest environmental impact are the antenna structure and the battery. The most pregnant indicators are ‘resource use’, mineral and metals’; ‘resource use, fossils’; ‘ionizing radiation, human health’; ‘climate change’; and ‘acidification’. Therefore, the actions that we recommend in the first place aim at reducing the impact of these components. They include limiting the mass of the raw material used in the antenna, changing the alloy of the antenna, considering another type of battery with an extended useful life, and the use of recycled materials for construction. As a pioneering study applying the LCA methodology to a large-scale physics experiment, this work can serve as a basis for future assessments by other collaborations.</span></p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"155 ","pages":"Article 102903"},"PeriodicalIF":3.5,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49761350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on performance boost of a 17 m class Cherenkov telescope with a SiPM-based camera 基于sipm的17 m级切伦科夫望远镜性能提升研究

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-23 DOI: 10.1016/j.astropartphys.2023.102902

Cornelia Arcaro , Michele Doro , Julian Sitarek , Dominik Baack

{"title":"A study on performance boost of a 17 m class Cherenkov telescope with a SiPM-based camera","authors":"Cornelia Arcaro , Michele Doro , Julian Sitarek , Dominik Baack","doi":"10.1016/j.astropartphys.2023.102902","DOIUrl":"https://doi.org/10.1016/j.astropartphys.2023.102902","url":null,"abstract":"<div><p>The current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs), comprised of major installations such as the MAGIC<span>, H.E.S.S. and VERITAS telescopes, is sometimes called the 3rd generation of such instruments. These telescopes use multipixel cameras composed of hundreds up to thousands photomultiplier tubes (PMTs). The supremacy of PMTs is currently being challenged by photon sensors, rapidly spreading in popularity: the silicon photomultipliers (SiPMs), that are becoming a valid alternative thanks to their high PDE, low operating voltage and flexibility in installation. In this report, we investigate the performance of an existing 3rd generation IACT array (taking as a working example MAGIC), in which PMTs would be replaced with SiPMs, applying generalized simulations, not tuned for a specific hardware solution. We find an energy-dependent improvement in sensitivity, reaching a factor of three at the current trigger threshold energy. Interestingly, we also find that the stronger sensitivity of SiPMs in the red part of the spectrum, a source of background for IACTs, does not affect this performance.</span></p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"155 ","pages":"Article 102902"},"PeriodicalIF":3.5,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91987546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Avoiding parameter fine-tuning in mass varying neutrino models of DE? 避免DE？质量变化中微子模型中的参数微调？

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-16 DOI: 10.1016/j.astropartphys.2023.102901

Michael Maziashvili, Vakhtang Tsintsabadze

引用次数: 0

GRMHD study of accreting massive black hole binaries in astrophysical environment: A review 天体物理环境中吸积大质量黑洞双星的GRMHD研究综述

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-04 DOI: 10.1016/j.astropartphys.2023.102892

Federico Cattorini , Bruno Giacomazzo

{"title":"GRMHD study of accreting massive black hole binaries in astrophysical environment: A review","authors":"Federico Cattorini , Bruno Giacomazzo","doi":"10.1016/j.astropartphys.2023.102892","DOIUrl":"10.1016/j.astropartphys.2023.102892","url":null,"abstract":"<div><p>We present an overview of recent numerical advances in the theoretical characterization of massive binary black hole (MBBH) mergers in astrophysical environments. These systems are among the loudest sources of gravitational waves (GWs) in the universe and particularly promising candidates for multimessenger astronomy. Coincident detection of GWs and electromagnetic (EM) signals from merging MBBHs is at the frontier of contemporary astrophysics. One major challenge in observational efforts searching for these systems is the scarcity of strong predictions for EM signals arising before, during, and after merger. Therefore, a great effort in theoretical work to-date has been to characterize EM counterparts emerging from MBBHs concurrently to the GW signal, aiming to determine distinctive observational features that will guide and assist EM observations. To produce sharp EM predictions of MBBH mergers it is key to model the binary inspiral down to coalescence in a full general relativistic fashion by solving Einstein’s field equations coupled with the magnetohydrodynamics equations that govern the evolution of the accreting plasma in strong-gravity. We review the general relativistic numerical investigations that have explored the astrophysical manifestations of MBBH mergers in different environments and focused on predicting potentially observable smoking-gun EM signatures that accompany the gravitational signal.</p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"154 ","pages":"Article 102892"},"PeriodicalIF":3.5,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43682094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EUSO-SPB1 mission and science spb1任务和科学

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-04 DOI: 10.1016/j.astropartphys.2023.102891

G. Abdellaoui , S. Abe , J.H. Adams Jr. , D. Allard , G. Alonso , L. Anchordoqui , A. Anzalone , E. Arnone , K. Asano , R. Attallah , H. Attoui , M. Ave Pernas , R. Bachmann , S. Bacholle , M. Bagheri , M. Bakiri , J. Baláz , D. Barghini , S. Bartocci , M. Battisti , A. Zuccaro Marchi

{"title":"EUSO-SPB1 mission and science","authors":"G. Abdellaoui , S. Abe , J.H. Adams Jr. , D. Allard , G. Alonso , L. Anchordoqui , A. Anzalone , E. Arnone , K. Asano , R. Attallah , H. Attoui , M. Ave Pernas , R. Bachmann , S. Bacholle , M. Bagheri , M. Bakiri , J. Baláz , D. Barghini , S. Bartocci , M. Battisti , A. Zuccaro Marchi","doi":"10.1016/j.astropartphys.2023.102891","DOIUrl":"10.1016/j.astropartphys.2023.102891","url":null,"abstract":"<div><p>The Extreme Universe Space Observatory on a Super Pressure Balloon 1 (EUSO-SPB1) was launched in 2017 April from Wanaka, New Zealand. The plan of this mission of opportunity on a NASA super pressure balloon test flight was to circle the southern hemisphere. The primary scientific goal was to make the first observations of ultra-high-energy cosmic-ray extensive air showers (EASs) by looking down on the atmosphere with an ultraviolet (UV) fluorescence telescope from suborbital altitude (33 km). After 12 days and 4 h aloft, the flight was terminated prematurely in the Pacific Ocean. Before the flight, the instrument was tested extensively in the West Desert of Utah, USA, with UV point sources and lasers. The test results indicated that the instrument had sensitivity to EASs of <span><math><mrow><mo>⪆</mo><mn>3</mn></mrow></math></span> EeV. Simulations of the telescope system, telescope on time, and realized flight trajectory predicted an observation of about 1 event assuming clear sky conditions. The effects of high clouds were estimated to reduce this value by approximately a factor of 2. A manual search and a machine-learning-based search did not find any EAS signals in these data. Here we review the EUSO-SPB1 instrument and flight and the EAS search.</p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"154 ","pages":"Article 102891"},"PeriodicalIF":3.5,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47229884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

High redshift constraints on extended logotropic models 扩展对数回归模型的高红移约束

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-01 DOI: 10.1016/j.astropartphys.2023.102852

Hachemi B. Benaoum , Pierre-Henri Chavanis , Orlando Luongo , Marco Muccino , Hernando Quevedo

{"title":"High redshift constraints on extended logotropic models","authors":"Hachemi B. Benaoum , Pierre-Henri Chavanis , Orlando Luongo , Marco Muccino , Hernando Quevedo","doi":"10.1016/j.astropartphys.2023.102852","DOIUrl":"10.1016/j.astropartphys.2023.102852","url":null,"abstract":"<div><p><span>A single logotropic fluid, responsible for the existence of the whole dark sector, is here extensively revised at intermediate redshifts. In particular, by investigating possible generalizations that conceptually overcome previous issues of standard logotropic scenarios, we fix bound over classes of logotropic models that exhibit additional terms in the equation of state. Employing </span><span><math><msub><mrow><mi>σ</mi></mrow><mrow><mn>8</mn></mrow></msub></math></span><span> measurements combined with low redshift data sets of Supernovae<span><span> and Hubble observational data, we show the statistical significance of those extensions and their departure from the standard cosmological model. Evidences against generalized versions of logotropic models are, in particular, prompted. Our outcomes definitively show that any departure from the original logotropic model, including the Anton–Schmidt </span>dark energy, are clearly disfavored at the level of perturbations and/or background cosmology. This indicates that, in order to have a logotropic fluid, plausible generalized versions of it would point out to reduce the complexity of the fluid itself, instead of adding extra terms.</span></span></p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"151 ","pages":"Article 102852"},"PeriodicalIF":3.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45738930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenomenological implications of sterile neutrinos in the μνSSM and dark matter μνSSM和暗物质中惰性中微子的现象学意义

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-01 DOI: 10.1016/j.astropartphys.2023.102865

Paulina Knees , Daniel E. López-Fogliani , Carlos Muñoz

{"title":"Phenomenological implications of sterile neutrinos in the μνSSM and dark matter","authors":"Paulina Knees , Daniel E. López-Fogliani , Carlos Muñoz","doi":"10.1016/j.astropartphys.2023.102865","DOIUrl":"https://doi.org/10.1016/j.astropartphys.2023.102865","url":null,"abstract":"<div><p>We analyze the role of sterile neutrinos in the framework of the <span><math><mrow><mi>μ</mi><mi>ν</mi></mrow></math></span>SSM, where the presence of right-handed neutrinos provides a simultaneous solution to <span><math><mi>μ</mi></math></span>- and <span><math><mi>ν</mi></math></span><span>-problems in supersymmetry<span>. We adopt a minimalistic approach, reproducing light neutrino masses and mixing angles at tree-level using just two right-handed neutrinos as part of the seesaw mechanism. A third right-handed neutrino does not contribute significantly to the mass of the three active ones, behaving as a sterile neutrino with a mass in the range keV-MeV. Furthermore, a sterile neutrino of about 10 keV can be a good candidate for dark matter with a lifetime larger than the age of the Universe. In particular, the three-body decay to active neutrinos gives the dominant contribution to its lifetime. The one-loop decay to gamma and active neutrino is subdominant, but relevant for observations such as astrophysical X-rays. We find regions of the parameter space of the </span></span><span><math><mrow><mi>μ</mi><mi>ν</mi></mrow></math></span>SSM, with different values of the sterile neutrino mass, fulfilling not only these constraints but also collider constraints from the Higgs sector.</p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"151 ","pages":"Article 102865"},"PeriodicalIF":3.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The energy spectrum of cosmic rays measured by the Telescope Array using 10 years of fluorescence detector data 望远镜阵列使用10年荧光探测器数据测量的宇宙射线能谱

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-01 DOI: 10.1016/j.astropartphys.2023.102864

R.U. Abbasi , Y. Abe , T. Abu-Zayyad , M. Allen , Y. Arai , R. Arimura , E. Barcikowski , J.W. Belz , D.R. Bergman , S.A. Blake , I. Buckland , B.G. Cheon , M. Chikawa , A. Fedynitch , T. Fujii , K. Fujisue , K. Fujita , R. Fujiwara , M. Fukushima , G. Furlich , Z. Zundel

{"title":"The energy spectrum of cosmic rays measured by the Telescope Array using 10 years of fluorescence detector data","authors":"R.U. Abbasi , Y. Abe , T. Abu-Zayyad , M. Allen , Y. Arai , R. Arimura , E. Barcikowski , J.W. Belz , D.R. Bergman , S.A. Blake , I. Buckland , B.G. Cheon , M. Chikawa , A. Fedynitch , T. Fujii , K. Fujisue , K. Fujita , R. Fujiwara , M. Fukushima , G. Furlich , Z. Zundel","doi":"10.1016/j.astropartphys.2023.102864","DOIUrl":"10.1016/j.astropartphys.2023.102864","url":null,"abstract":"<div><p><span>The Telescope Array (TA) Cosmic Ray Observatory is the largest cosmic ray detector in the northern hemisphere. TA was built to study ultra-high-energy cosmic rays (UHECRs), cosmic rays with energies above </span><span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>18</mn></mrow></msup><mspace></mspace><mi>eV</mi></mrow></math></span><span>. TA is a hybrid detector, employing two distinct detection methods: a surface detector array and a set of fluorescence telescopes. We will present a measurement of the cosmic ray energy spectrum for energies above </span><span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>17</mn><mo>.</mo><mn>5</mn></mrow></msup><mspace></mspace><mi>eV</mi></mrow></math></span> using only the fluorescence telescopes. A novel weather classification scheme using machine learning was used to select data parts with good weather to ensure the quality of the fluorescence data. The data from the Black Rock Mesa (BRM) and Long Ridge (LR) fluorescence telescope sites were analyzed separately in monocular mode, with the calculated fluxes combined into a single spectrum. The 10-year monocular combined cosmic ray energy spectrum is observed to be in excellent agreement with previous measurements from the northern hemisphere. We present fits of the combined spectrum to a series of broken power law models. The thrice-broken power law was observed to be the best fit considering the Poisson deviance per degrees of freedom. The three breaks suggest an additional feature of the spectrum between the previously observed Ankle feature at <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>18</mn><mo>.</mo><mn>7</mn></mrow></msup><mspace></mspace><mi>eV</mi></mrow></math></span> and the GZK suppression at <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>19</mn><mo>.</mo><mn>8</mn></mrow></msup><mspace></mspace><mi>eV</mi></mrow></math></span>.</p></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":"151 ","pages":"Article 102864"},"PeriodicalIF":3.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44000411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bracketing the direct detection exclusion plot for a WIMP of spin one half in non-relativistic effective theory 包涵非相对论有效理论中自旋为1 / 2的WIMP的直接探测排除图

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-01 DOI: 10.1016/j.astropartphys.2023.102854

Sunghyun Kang, Injun Jeong, Stefano Scopel

引用次数: 0

Analytic approach to axion-like-particle emission in core-collapse supernovae 核坍缩超新星类轴子粒子发射的解析方法

IF 3.5 3区物理与天体物理

Astroparticle Physics Pub Date : 2023-09-01 DOI: 10.1016/j.astropartphys.2023.102855

Ana Luisa Foguel , Eduardo S. Fraga

引用次数: 1