F. Fenu, H. Miyamoto, M. Battisti, A. Belov, F. Bisconti, R. Bonino, S. Blin-Bondil, M. Bertaina, F. Cafagna, G. Cambiè, F. Capel, M. Casolino, A. Cellino, I. Churilo, G. Cotto, A. Djakonow, T. Ebisuzaki, F. Fausti, C. Fornaro, A. Franceschi, Christer Fugelsang, D. Gardiol, P. Gorodetzky, F. Kajino, P. Klimov, L. Marcelli, W. Marszał, M. Mignone, A. Murashov, T. Napolitano, G. Osteria, M. Panasyuk, E. Parizot, A. Poroshin, P. Picozza, L. Piotrowski, Z. Plebaniak, G. Prévôt, M. Przybylak, E. Reali, M. Ricci, N. Sakaki, K. Shinozaki, G. Suino, J. Szabelski, Y. Takizawa, M. Traiche, S. Turriziani
{"title":"Space Debris Detection and Tracking with the Techniques of Cosmic Ray Physics","authors":"F. Fenu, H. Miyamoto, M. Battisti, A. Belov, F. Bisconti, R. Bonino, S. Blin-Bondil, M. Bertaina, F. Cafagna, G. Cambiè, F. Capel, M. Casolino, A. Cellino, I. Churilo, G. Cotto, A. Djakonow, T. Ebisuzaki, F. Fausti, C. Fornaro, A. Franceschi, Christer Fugelsang, D. Gardiol, P. Gorodetzky, F. Kajino, P. Klimov, L. Marcelli, W. Marszał, M. Mignone, A. Murashov, T. Napolitano, G. Osteria, M. Panasyuk, E. Parizot, A. Poroshin, P. Picozza, L. Piotrowski, Z. Plebaniak, G. Prévôt, M. Przybylak, E. Reali, M. Ricci, N. Sakaki, K. Shinozaki, G. Suino, J. Szabelski, Y. Takizawa, M. Traiche, S. Turriziani","doi":"10.22323/1.358.0253","DOIUrl":"https://doi.org/10.22323/1.358.0253","url":null,"abstract":"Space Debris (SD) consist of non-operational artificial objects orbiting around the Earth, which could possibly damage space vehicles, such as the International Space Station (ISS) or other manned spacecrafts. The vast majority of such objects are cm-sized, not catalogued and usually the tracking data are not precise enough. Here we present the feasibility study of SD detection and tracking with techniques usually employed in cosmic-ray physics. For this purpose, we have evaluated the possibility of using Mini-EUSO, a space-borne fluorescence telescope to be deployed on the ISS, to track SD illuminated by the Sun. By means of ESAF (EUSO Simulation and analysis Framework) simulation and by developing the trigger algorithms, we estimated the minimum size and maximum distances of detectable SD. We then studied the number of possible SD detections using an ESA software called MASTER (Meteoroid and SD Terrestrial Environment Reference). With the Mini-EUSO Engineering Model (Mini-EUSO EM), we performed some measurements to estimate the reflectance of the most common SD materials and to demonstrate the ability of Mini-EUSO to detect SD events. We also performed some tests in open-sky conditions, identifying and tracking fast-moving objects. In particular, the detection of a rocket body allowed us to confirm the simulation outcomes predictions and the expected performance of the detector.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128278391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Krizmanic, Y. Akaike, D. Braun, R. Bose, J. Buckley, G. Denolfo, J. DuMonthier, P. Dowkontt, Z. Hughes, I. Liceaga-Indart, J. Link, J. Mitchell, G. Mitchell, S. Nutter, G. Suárez, M. Olevitch, T. Tatoli, G. Simburger, W. Binns, T. Brandt, M. Israel, A. Labrador, M. Wiedenbeck, R. Mewaldt, B. Rauch, K. Sakai, M. Sasaki, E. Stone, N. Walsh, C. J. Waddington
{"title":"HNX/SuperTIGER Silicon Strip Detector Response to Nuclei in Lead Primary and Fragmented Test Beams","authors":"J. Krizmanic, Y. Akaike, D. Braun, R. Bose, J. Buckley, G. Denolfo, J. DuMonthier, P. Dowkontt, Z. Hughes, I. Liceaga-Indart, J. Link, J. Mitchell, G. Mitchell, S. Nutter, G. Suárez, M. Olevitch, T. Tatoli, G. Simburger, W. Binns, T. Brandt, M. Israel, A. Labrador, M. Wiedenbeck, R. Mewaldt, B. Rauch, K. Sakai, M. Sasaki, E. Stone, N. Walsh, C. J. Waddington","doi":"10.22323/1.358.0094","DOIUrl":"https://doi.org/10.22323/1.358.0094","url":null,"abstract":"The response to 150 GeV/nuc primary lead ($^{208}$Pb) and fragmented (A/Z=2.4, 2.2, 2.0) beams measured a silicon strip detector, designed for use in the Heavy Nuclei eXplorer (HNX) and an upgrade of the Super Trans-Iron Galactic Element Recorder (SuperTIGER) balloon experiment, was evaluated in a CERN test beam (H8A) during Nov - Dec 2018. The 500 $mu$m thick, single-sided silicon detectors have 32 DC-coupled strips with 3 mm pitch on the junction side with $9.6 times 9.6$ cm$^2$ active area. Discrete charge-preamplifiers and shaping amplifiers were used to read out the ohmic and junction side signals simultaneously using the SuperTIGER DAQ system. We report on the response in a configuration where all 32 strips were joined and read out together. The strip detector-under-test was situated \u0000between planar silicon detectors, which provided the charge selection as well as a comparison of the measured response of each detector. The combined data set shows excellent charge resolution and finely resolved elemental peaks from helium (Z=2) through lead (Z=82). In this paper, we provide a description of the test beam experiment and the results of the charge resolution analysis.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129660871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
X. Li, Qihui Chen, Hu Liu, Y. He, Huanyu Jia, F. Zhu, N. Xie, W. Long
{"title":"Extinction Coefficient from Atmospheric Aerosols over LHAASO","authors":"X. Li, Qihui Chen, Hu Liu, Y. He, Huanyu Jia, F. Zhu, N. Xie, W. Long","doi":"10.22323/1.358.0497","DOIUrl":"https://doi.org/10.22323/1.358.0497","url":null,"abstract":"We investigate the extinction coefficients of atmospheric aerosol over the Large High Air Shower Observatory (LHAASO), located at the Haizi Mountain, Daocheng County, China. The Aerosol Optical Depth(AOD), the column-integrated extinction coefficient(EC), is obtained by MODerate-resolution Imaging Spectroradiometer(MODIS) from 2011−2018. The data of extinction coefficients over LHAASO have been analyzed by Infrared Pathfinder Satellite Observations (CALIPSO) satellite during 2011-2017. Our results show that the AOD and EC have yearlyvariationwiththepeakvaluesinJuly, AugustandSeptember, andlessintheothermonths, which suggests that the atmospheric aerosols over LHAASO has its special characteristics. Over LHAASO the EC of the atmospheric aerosols are very small, which is consistent with other studies. The maximum values of EC occurredaround 6∼7km altitude. Due to the bigger errorof EC, more CALIPSO data to be utilized for the variability of EC over LHAASO.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117310092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Satalecka, E. Bernardini, W. Bhattacharyya, M. Cerruti, V. Ramazani, L. Foffano, S. Inoue, E. Prandini, C. Righi, N. Sahakyan, F. Tavecchio
{"title":"MAGIC and MWL monitoring of the blazar TXS 0506+056 in the 2018/2019 season","authors":"K. Satalecka, E. Bernardini, W. Bhattacharyya, M. Cerruti, V. Ramazani, L. Foffano, S. Inoue, E. Prandini, C. Righi, N. Sahakyan, F. Tavecchio","doi":"10.22323/1.358.0783","DOIUrl":"https://doi.org/10.22323/1.358.0783","url":null,"abstract":"The gamma-ray blazar TXS 0506+056, was discovered in VHE gamma-rays \u0000by the MAGIC telescopes in 2017 in a follow-up campaign of a high energy neutrino \u0000event IceCube-170922A (IC+Fermi+MAGIC++, Science 361, eaat1378 (2018)). Subsequent \u0000multivawelenght (MWL) observations \u0000and theoretical modeling in a frame of hadro-leptonic emission confirmed that this \u0000source could be a potential cosmic ray and neutrino emitter \u0000(MAGIC Collaboration, Ansoldi et al., (2018)). \u0000This is, by far, the most significant association between a high-energy neutrino \u0000and an astrophysical source emitting gamma rays and X-rays. TXS 0506+056 is a key object \u0000to help the astrophysics community to establish connections between high-energy neutrinos \u0000and astrophysical sources. Accurate and contemporaneous MWL spectral measurements are essential ingredients to achieve this goal. \u0000In the conference, we present the measurements \u0000from the MAGIC and MWL monitoring of this source, spanning the time period \u0000from November 2017 till February 2019. These include the lowest VHE gamma-ray emission state measured from this source so far as well as a flaring episode in December 2018.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130992534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. A. Cheminant, D. Góra, D. A. Castillo, N. Dhital, P. Homola, P. Jagoda, K. Kopanski, M. Kasztelan, P. Kovács, Marta Marek, V. Nazari, M. Niedźwiecki, K. Smelcerz, K. Smolek, J. Stasielak, O. Sushchov, K. Rzecki, T. Wibig, J. Zamora-Saá
{"title":"Search for Ultra-high Energy Photons: Observing the Preshower Effect with Gamma-ray Telescopes","authors":"K. A. Cheminant, D. Góra, D. A. Castillo, N. Dhital, P. Homola, P. Jagoda, K. Kopanski, M. Kasztelan, P. Kovács, Marta Marek, V. Nazari, M. Niedźwiecki, K. Smelcerz, K. Smolek, J. Stasielak, O. Sushchov, K. Rzecki, T. Wibig, J. Zamora-Saá","doi":"10.22323/1.358.0688","DOIUrl":"https://doi.org/10.22323/1.358.0688","url":null,"abstract":"Ultra-high energy photons constitute one of the most important pieces of the astroparticle physics problems. Their observation may provide new insight on several phenomena such as supermassive particle annihilation or the GZK effect. Because of the absence of any significant photon identificationby a leading experiments such as the Pierre Auger Observatory, we consider a screening phenomenon called preshower effect which could efficiently affect ultra-high energy photon propagation. \u0000This effect is a consequence of photon interactions with the geomagnetic field and results in large electromagnetic cascade of particles several thousands kilometers above the atmosphere. \u0000This collection of particles, called cosmic-ray ensembles (CRE), may reach the atmosphere and produce the well-known air showers. In this paper we propose to use gamma-ray telescopes to \u0000look for air showers induced by CRE. Possible sources of ultra-high energy photons include the GZK effect and Super Heavy Dark Matter particles. Simulations involving the preshower effect \u0000and detectors response are performed and properties of these peculiar air showers are investigated. The use of boosted decision trees to obtain the best cosmic-ray ensemble/hadron separation, the aperture and event rate predictions for a few models of photon production are also presented.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"52 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117350606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Monte, C. Vigorito, M. Bertaina, S. Ferrarese, K. Shinozaki, S. Briz, Jem-euso Collaboration
{"title":"WRF (Weather Research and Forecasting) model and radiative methods for cloud top height retrieval along the EUSO-SPB1 trajectory","authors":"S. Monte, C. Vigorito, M. Bertaina, S. Ferrarese, K. Shinozaki, S. Briz, Jem-euso Collaboration","doi":"10.22323/1.358.0455","DOIUrl":"https://doi.org/10.22323/1.358.0455","url":null,"abstract":"The Extreme Universe Space Observatory-Super Pressure Balloon (EUSO-SPB1) is a pathfinder of the JEM-EUSO program, which aims to observe Ultra High Energy Cosmic Rays (UHECRs) from near-space. It was launched from Wanaka (New Zealand) on April 25, 2017 UTC and was terminated after twelve days of flight in the South Pacific Ocean. A good knowledge of the atmospheric conditions and cloud properties, such as the Cloud Top Height (CTH), is fundamental to correctly reconstruct the energy and geometry of air showers produced by cosmic rays passing through the atmosphere. One of the methods used to retrieve the CTH is based on Numerical Weather Prediction models. In this work, we consider in particular the Weather Research and Forecasting (WRF) model. A first model test is made on the WRF parametrizations for elementary processes, applying a top-bottom directed algorithm based on two quantities: cloud fraction and optical depth. The validated procedure is then applied to the SPB1 trajectory, retrieving the CTH every ten minutes for the days of the flight. A comparison is made with the analyzed data taken from MODerate resolution Imaging Spectroradiometer (MODIS) satellite images, once per day, to understand the reliability of the method. Another way to retrieve the CTH is the so-called radiative method, that allows to calculate the Cloud Top Temperature (CTT). A vertical temperature profile is needed to transform the CTT into CTH. When radiosoundings are not available, WRF can provide vertical temperature profiles. The conversion from the CTT to the CTH is then made.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115773026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Propagation of Ultra-high-energy Cosmic Rays in the Magnetized Cosmic Web","authors":"Jihyun Kim, D. Ryu, S. Roh, J. Ha, Hyesung Kang","doi":"10.22323/1.358.0315","DOIUrl":"https://doi.org/10.22323/1.358.0315","url":null,"abstract":"A high concentration of ultra-high-energy cosmic ray (UHECR) events, called a hotspot, was reported by the Telescope Array (TA) experiment, but its origin still remains unsolved. One of the obstacles is that there is no astronomical object, which could be the source, behind the TA hotpot. In an effort to understand the origin of the TA hotspot, we suggested a model based on the magnetized cosmic web structure. The UHECRs were produced from sources in the Virgo cluster and were initially confined by cluster magnetic fields for a certain period. Next, some of them preferentially escaped to and propagated along filaments. Eventually, they were scattered by filament magnetic fields, and come to us. To examine the model, we followed the propagation trajectories of UHE protons in a simulated universe with clusters, filaments, and voids, by employing a number of models for cosmic magnetic fields. In this study, we present some of the initial results, such as the ratio between the particles directly escaping from the clusters to the voids and particles escaping from the clusters to the filaments. We also discuss the feasibility of our model for the origin of the hotspot by examining the trajectories of the UHE protons.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"424 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121827781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Prandini, C. Arcaro, V. Ramazani, K. Asano, G. Bonnoli, M. Cerruti, F. D’Ammando, L. Foffano, F. Tavecchio
{"title":"MAGIC eyes to the extreme: testing the blazar emission models on EHBLs","authors":"E. Prandini, C. Arcaro, V. Ramazani, K. Asano, G. Bonnoli, M. Cerruti, F. D’Ammando, L. Foffano, F. Tavecchio","doi":"10.22323/1.358.0768","DOIUrl":"https://doi.org/10.22323/1.358.0768","url":null,"abstract":"Extreme high-energy peaked BL Lac objects (EHBLs) are blazars whose synchrotron emission peaks at exceptionally high energies, above few keV, in the hard X-ray regime. So far, only a handful of those objects has been detected at very high energy (VHE, E > 100 GeV) gamma rays by Imaging Atmospheric Cherenkov Telescopes. Very remarkably, VHE observations of some of these blazars (like 1ES 0229+200) have provided evidence of a VHE gamma-ray emission extending to several TeV, which is difficult to explain with standard, one-zone synchrotron self-Compton models usually applied to BL Lac objects. \u0000The MAGIC collaboration coordinated a multi-year, multi-wavelength observational campaign on ten targets. The MAGIC telescopes detected VHE gamma rays from four EHBLs. In this paper we focus on the source 1ES 1426+426 and its X-ray and VHE gamma-ray properties. The results of different models (synchrotron self-Compton, spine-layer, hadronic) reproducing the broadband spectral energy distribution are also presented.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121850409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Doro, C. Nigro, E. Prandini, A. Tramacere, M. Delfino, J. Delgado, Elia do Souto, L. Jouvin, Javier Rico University of Padova, I-35131 Padova, I-35131 Padova, D. Elektronen-Synchrotron, D. Zeuthen, H Germany, D. O. Astronomy, U. Geneva, Versoix - Switzerland, Institut de F'isica d'Altes Energies, T. Science, Technology, E. Bellaterra, Spain., P. Spain
{"title":"Toward a Public MAGIC Gamma-Ray Telescope Legacy Data Portal","authors":"M. Doro, C. Nigro, E. Prandini, A. Tramacere, M. Delfino, J. Delgado, Elia do Souto, L. Jouvin, Javier Rico University of Padova, I-35131 Padova, I-35131 Padova, D. Elektronen-Synchrotron, D. Zeuthen, H Germany, D. O. Astronomy, U. Geneva, Versoix - Switzerland, Institut de F'isica d'Altes Energies, T. Science, Technology, E. Bellaterra, Spain., P. Spain","doi":"10.22323/1.358.0666","DOIUrl":"https://doi.org/10.22323/1.358.0666","url":null,"abstract":"The MAGIC telescopes are one of the three major IACTs (Imaging Atmospheric Cherenkov Tele- scopes) for observation of gamma rays in the TeV regime currently operative. MAGIC functions since 2003, and has published data from more than 60 sources, mostly blazars. MAGIC already provides astronomical .fits files with basic final scientific products such as spectral energy distributions, light curves and skymaps from published results. In future, the format of the files can be complemented with further relevant information to the community: a) by including the full multi-wavelength dataset enclosed in a publication, b) providing data in alternative easy-to-use formats such as ASCII or XML, which are accessible with other commonly used packages such as gammapy. Finally, besides high level products, activities have started to provide photon event lists and instrument response functions in a format such that scientists within and outside the community are allowed to perform higher level analysis. A second aim is to provide a full legacy of MAGIC data. This contribution will illustrate the achievements and plans of this activity.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130983506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Varsi, S. Ahmad, M. Chakraborty, A. Chandra, S. Dugad, Sushmita Gupta, B. Hariharan, Y. Hayashi, S. Inbanathan, P. Jagadeesan, A. Jain, P. Jain, V. Jhansi, S. Kawakami, H. Kojima, S. Mahapatra, P. Mohanty, S. Morris, Y. Muraki, P. K. Nayak, A. Oshima, D. Pattanaik, P. Rakshe, K. Ramesh, B. Rao, L. V. Reddy, Sanjay Sharma, S. Shibata, K. Tanaka, M. Zuberi
{"title":"Energy spectrum and composition measurements of cosmic rays from GRAPES-3 experiment","authors":"F. Varsi, S. Ahmad, M. Chakraborty, A. Chandra, S. Dugad, Sushmita Gupta, B. Hariharan, Y. Hayashi, S. Inbanathan, P. Jagadeesan, A. Jain, P. Jain, V. Jhansi, S. Kawakami, H. Kojima, S. Mahapatra, P. Mohanty, S. Morris, Y. Muraki, P. K. Nayak, A. Oshima, D. Pattanaik, P. Rakshe, K. Ramesh, B. Rao, L. V. Reddy, Sanjay Sharma, S. Shibata, K. Tanaka, M. Zuberi","doi":"10.22323/1.358.0449","DOIUrl":"https://doi.org/10.22323/1.358.0449","url":null,"abstract":"Precise measurements of the nuclear composition and energy spectrum of primary cosmic rays at the ’knee’ and beyond are essential to understand their astrophysical origin, acceleration, and properties of the interstellar medium. The GRAPES-3 experiment located at Ooty in India is designed with a densely packed array of scintillator detectors. It measures cosmic rays from several TeV to over 10 PeV while providing a substantial overlap with direct experiments. The muon multiplicity distribution measured by the large area tracking muon detector associated with the array is sensitive to composition. Recently, we have attempted to measure the energy spectrum and composition from sub-TeV to over 10 PeV. The results obtained so far will be presented during the conference.","PeriodicalId":166008,"journal":{"name":"Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117297078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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