University of Oulu

Aguilar, M., Ali Cavasonza, L., Ambrosi, G., Arruda, L., Attig, N., Bachlechner, A., Barao, F., Barrau, A., Barrin, L., Bartoloni, A., Başeğmez-du Pree, S., Battiston, R., Becker, U., Behlmann, M., Beischer, B., Berdugo, J., Bertucci, B., Bindi, V., de Boer, W., Bollweg, K., Borgia, B., Boschini, M., Bourquin, M., Bueno, E., Burger, J., Burger, W., Cai, X., Capell, M., Caroff, S., Casaus, J., Castellini, G., Cervelli, F., Chang, Y., Chen, G., Chen, H., Chen, Y., Cheng, L., Chou, H., Choutko, V., Chung, C., Clark, C., Coignet, G., Consolandi, C., Contin, A., Corti, C., Cui, Z., Dadzie, K., Dai, Y., Datta, A., Delgado, C., Della Torre, S., Demirköz, M., Derome, L., Di Falco, S., Di Felice, V., Díaz, C., Dimiccoli, F., von Doetinchem, P., Dong, F., Donnini, F., Duranti, M., Egorov, A., Eline, A., Feng, J., Fiandrini, E., Fisher, P., Formato, V., Galaktionov, Y., Gámez, C., García-López, R., Gargiulo, C., Gast, H., Gebauer, I., Gervasi, M., Giovacchini, F., Gómez-Coral, D., Gong, J., Goy, C., Grabski, V., Grandi, D., Graziani, M., Guo, K., Haino, S., Han, K., He, Z., Hsieh, T., Huang, H., Huang, Z., Incagli, M., Jang, W., Jia, Y., Jinchi, H., Kanishev, K., Khiali, B., Kim, G., Kirn, T., Konyushikhin, M., Kounina, O., Kounine, A., Koutsenko, V., Kulemzin, A., La Vacca, G., Laudi, E., Laurenti, G., Lazzizzera, I., Lebedev, A., Lee, H., Lee, S., Li, J., Li, Q., Li, T., Li, Z., Light, C., Lin, C., Lippert, T., Liu, Z., Lu, S., Lu, Y., Luebelsmeyer, K., Luo, F., Luo, J., Luo, X., Lyu, S., Machate, F., Mañá, C., Marín, J., Martin, T., Martínez, G., Masi, N., Maurin, D., Menchaca-Rocha, A., Meng, Q., Mo, D., Molero, M., Mott, P., Mussolin, L., Nelson, T., Ni, J., Nikonov, N., Nozzoli, F., Oliva, A., Orcinha, M., Palermo, M., Palmonari, F., Paniccia, M., Pashnin, A., Pauluzzi, M., Pensotti, S., Phan, H., Plyaskin, V., Poireau, V., Poluianov, S., Popkow, A., Qi, X., Qin, X., Qu, Z., Quadrani, L., Rancoita, P., Rapin, D., Reina Conde, A., Rosier-Lees, S., Rozhkov, A., Rozza, D., Sagdeev, R., Schael, S., Schmidt, S., Schulz von Dratzig, A., Schwering, G., Seo, E., Shan, B., Shi, J., Siedenburg, T., Solano, C., Song, J., Sun, Z., Tacconi, M., Tang, X., Tang, Z., Tian, J., Ting, S., Ting, S., Tomassetti, N., Torsti, J., Tüysüz, C., Urban, T., Usoskin, I., Vagelli, V., Vainio, R., Valente, E., Valtonen, E., Vázquez Acosta, M., Vecchi, M., Velasco, M., Vialle, J., Wang, L., Wang, N., Wang, Q., Wang, X., Wang, X., Wang, Z., Wei, J., Weng, Z., Wu, H., Xiong, R., Xu, W., Yan, Q., Yang, Y., Yi, H., Yu, Y., Yu, Z., Zannoni, M., Zeissler, S., Zhang, C., Zhang, F., Zhang, J., Zhang, Z., Zhao, F., Zheng, Z., Zhuang, H., Zhukov, V., Zichichi, A., Zimmermann, N., Zuccon, P. (2019) Properties of Cosmic Helium Isotopes Measured by the Alpha Magnetic Spectrometer. Physical Review Letters, 123 (18), 181102. doi:10.1103/PhysRevLett.123.181102

Properties of cosmic helium isotopes measured by the Alpha Magnetic Spectrometer

Saved in:
Author: Aguilar, M.1; Cavasonza, L. Ali2,3; Ambrosi, G.4;
Arruda, L.5; Attig, N.6,7; Bachlechner, A.2,3; Barao, F.5; Barrau, A.8; Barrin, L.9; Bartoloni, A.10; Basegmez-du Pree, S.11,12; Battiston, R.13,14; Becker, U.15; Behlmann, M.15; Beischer, B.2,3; Berdugo, J.1; Bertucci, B.4,16; Bindi, V.17; de Boer, W.18; Bollweg, K.19; Borgia, B.10; Boschini, M. J.20; Bourquin, M.21; Bueno, E. F.11; Burger, J.15; Burger, W. J.13; Cai, X. D.15; Capell, M.15; Caroff, S.22; Casaus, J.1; Castellini, G.23; Cervelli, F.24; Chang, Y. H.25,26; Chen, G. M.27,28; Chen, H. S.27,28; Chen, Y.21; Cheng, L.29; Chou, H. Y.25,26; Choutko, V.15; Chung, C. H.2,3; Clark, C.15,19; Coignet, G.22; Consolandi, C.17; Contin, A.30,31; Corti, C.17; Cui, Z.29; Dadzie, K.15; Dai, Y. M.32; Datta, A.17; Delgado, C.1; Della Torre, S.20; Demirkoz, M. B.33; Derome, L.8; Di Falco, S.24; Di Felice, V.4,34; Diaz, C.1; Dimiccoli, F.13; von Doetinchem, P.17; Dong, F.35; Donnini, F.4,34; Duranti, M.4; Egorov, A.15; Eline, A.15; Feng, J.15; Fiandrini, E.4,16; Fisher, P.15; Formato, V.4,34; Galaktionov, Y.15; Gamez, C.1; Garcia-Lopez, R. J.36,37; Gargiulo, C.9; Gast, H.2,3; Gebauer, I.18; Gervasi, M.20,38; Giovacchini, F.1; Gomez-Coral, D. M.39; Gong, J.35; Goy, C.22; Grabski, V.39; Grandi, D.20,38; Graziani, M.18; Guo, K. H.40; Haino, S.41; Han, K. C.42; He, Z. H.40; Hsieh, T. H.15; Huang, H.41,43; Huang, Z. C.40; Incagli, M.24; Jang, W. Y.44; Jia, Yi15; Jinchi, H.42; Kanishev, K.13; Khiali, B.4,34; Kim, G. N.44; Kirn, Th.2,3; Konyushikhin, M.15; Kounina, O.15; Kounine, A.15; Koutsenko, V.15; Kulemzin, A.15; La Vacca, G.20,38; Laudi, E.9; Laurenti, G.30; Lazzizzera, I.13,14; Lebedev, A.15; Lee, H. T.45; Lee, S. C.41; Li, J. Q.35; Li, Q.35; Li, T. X.40; Li, Z. H.27; Light, C.17; Lin, C. H.41; Lippert, T.6,7; Liu, Z.21; Lu, S. Q.40; Lu, Y. S.27; Luebelsmeyer, K.2,3; Luo, F.29; Luo, J. Z.35; Luo, Xi17; Lyu, S. S.40; Machate, F.2,3; Mana, C.1; Marin, J.1; Martin, T.15,19; Martinez, G.1; Masi, N.30; Maurin, D.8; Menchaca-Rocha, A.39; Meng, Q.35; Mo, D. C.40; Molero, M.1; Mott, P.15,19; Mussolin, L.4,16; Nelson, T.17; Ni, J. Q.40; Nikonov, N.2,3; Nozzoli, F.13; Oliva, A.1; Orcinha, M.5; Palermo, M.17; Palmonari, F.30,31; Paniccia, M.21; Pashnin, A.15; Pauluzzi, M.4,16; Pensotti, S.20,38; Phan, H. D.15; Plyaskin, V.15; Poireau, V.22; Poluianov, S.46,47; Popkow, A.17; Qi, X. M.40; Qin, X.15; Qu, Z. Y.41; Quadrani, L.30,31; Rancoita, P. G.20; Rapin, D.21; Reina Conde, A.36,37; Rosier-Lees, S.22; Rozhkov, A.15; Rozza, D.20,38; Sagdeev, R.48; Schael, S.2,3; Schmidt, S. M.6,7; von Dratzig, A. Schulz2,3; Schwering, G.2,3; Seo, E. S.49; Shan, B. S.50; Shi, J. Y.35; Siedenburg, T.2,3; Solano, C.15; Song, J. W.29; Sun, Z. T.27,28; Tacconi, M.20,38; Tang, X. W.27; Tang, Z. C.27; Tian, J.4,16; Ting, Samuel C. C.15,9; Ting, S. M.15; Tomassetti, N.4,16; Torsti, J.51; Tuysuz, C.33; Urban, T.15,19; Usoskin, I.46,47; Vagelli, V.4,16,52; Vainio, R.51; Valente, E.10,53; Valtonen, E.51; Vazquez Acosta, M.36,37; Vecchi, M.11,54; Velasco, M.1; Vialle, J. P.22; Wang, L. Q.29; Wang, N. H.29; Wang, Q. L.32; Wang, X.27,28,15; Wang, X. Q.27,28; Wang, Z. X.40; Wei, J.21; Weng, Z. L.15; Wu, H.35; Xiong, R. Q.35; Xu, W.15,29; Yan, Q.15; Yang, Y.55; Yi, H.35; Yu, Y. J.32; Yu, Z. Q.27; Zannoni, M.20,38; Zeissler, S.18; Zhang, C.27; Zhang, F.27; Zhang, J. H.35; Zhang, Z.15; Zhao, F.27,28; Zheng, Z. M.50; Zhuang, H. L.27; Zhukov, V.2,3; Zichichi, A.30,31; Zimmermann, N.2,3; Zuccon, P.13,14
Organizations: 1Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain.
2Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany.
3Rhein Westfal TH Aachen, JARA FAME, D-52056 Aachen, Germany.
4INFN, Sez Perugia, I-06100 Perugia, Italy.
5Lab Instrumentacao & Fis Expt Particulas LIP, P-1000 Lisbon, Portugal.
6Julich Supercomp Ctr, D-52425 Julich, Germany.
7Res Ctr Julich, JARA FAME, D-52425 Julich, Germany.
8Univ Grenoble Alpes, CNRS, Grenoble INP, LPSC,IN2P3, F-38000 Grenoble, France.
9CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland.
10INFN, Sez Roma 1, I-00185 Rome, Italy.
11Univ Groningen, KVI Ctr Adv Radiat Technol, NL-9700 AB Groningen, Netherlands.
12Nikhef, NL-1098 XG Amsterdam, Netherlands.
13INFN, TIFPA, I-38123 Povo, Trento, Italy.
14Univ Trento, I-38123 Povo, Trento, Italy.
15MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
16Univ Perugia, I-06100 Perugia, Italy.
17Univ Hawaii, Phys & Astron Dept, Honolulu, HI 96822 USA.
18KIT, Inst Expt Teilchenphys, D-76131 Karlsruhe, Germany.
19NASA, JSC, Houston, TX 77058 USA.
20INFN, Sez Milano Bicocca, I-20126 Milan, Italy.
21Univ Geneva, DPNC, CH-1211 Geneva 4, Switzerland.
22Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, LAPP IN2P3, F-74000 Annecy, France.
23CNR, IROE, I-50125 Florence, Italy.
24INFN, Sez Pisa, I-56100 Pisa, Italy.
25NCU, Phys Dept, Taoyuan 32054, Taiwan.
26NCU, Ctr High Energy & High Field, Taoyuan 32054, Taiwan.
27Chinese Acad Sci, IHEP, Beijing 100049, Peoples R China.
28UCAS, Beijing 100049, Peoples R China.
29Shandong Univ SDU, Jinan 250100, Shandong, Peoples R China.
30INFN, Sez Bologna, I-40126 Bologna, Italy.
31Univ Bologna, I-40126 Bologna, Italy.
32Chinese Acad Sci, IEE, Beijing 100190, Peoples R China.
33METU, Dept Phys, TR-06800 Ankara, Turkey.
34ASI Space Sci Data Ctr SSDC, I-00133 Rome, Italy.
35Southeast Univ SEU, Nanjing 210096, Jiangsu, Peoples R China.
36Inst Astrofis Canarias, San Cristobal la Laguna 38205, Spain.
37Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain.
38Univ Milano Bicocca, I-20126 Milan, Italy.
39Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico.
40SYSU, Guangzhou 510275, Guangdong, Peoples R China.
41Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
42NCSIST, Longtan 32546, Tao Yuan, Taiwan.
43Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
44Kyungpook Natl Univ, CHEP, Daegu 41566, South Korea.
45ASGC, Taipei 11529, Taiwan.
46Univ Oulu, Sodankyla Geophys Observ, Oulu 90014, Finland.
47Univ Oulu, Space Climate Res Unit, Oulu 90014, Finland.
48Univ Maryland, East West Ctr Space Sci, College Pk, MD 20742 USA.
49Univ Maryland, IPST, College Pk, MD 20742 USA.
50Beihang Univ BUAA, Beijing 100191, Peoples R China.
51Univ Turku, Dept Phys & Astron, Space Res Lab, Turku 20014, Finland.
52ASI, I-00133 Rome, Italy.
53Univ Roma La Sapienza, I-00185 Rome, Italy.
54Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Paulo, SP, Brazil.
55Natl Cheng Kung Univ, Tainan 70101, Taiwan.
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2019110536725
Language: English
Published: American Physical Society, 2019
Publish Date: 2019-11-05
Description:

Abstract

Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of 3He and 4He fluxes are presented. The measurements are based on 100 million 4He nuclei in the rigidity range from 2.1 to 21 GV and 18 million 3He from 1.9 to 15 GV collected from May 2011 to November 2017. We observed that the 3He and 4He fluxes exhibit nearly identical variations with time. The relative magnitude of the variations decreases with increasing rigidity. The rigidity dependence of the 3He/4He flux ratio is measured for the first time. Below 4 GV, the 3He/4He flux ratio was found to have a significant long-term time dependence. Above 4 GV, the 3He/4He flux ratio was found to be time independent, and its rigidity dependence is well described by a single power law ∝RΔ with Δ=−0.294±0.004. Unexpectedly, this value is in agreement with the B/O and B/C spectral indices at high energies.

see all

Series: Physical review letters
ISSN: 0031-9007
ISSN-E: 1079-7114
ISSN-L: 0031-9007
Volume: 123
Issue: 18
Article number: 181102
DOI: 10.1103/PhysRevLett.123.181102
OADOI: https://oadoi.org/10.1103/PhysRevLett.123.181102
Type of Publication: A1 Journal article – refereed
Field of Science: 115 Astronomy and space science
Subjects:
Funding: We are grateful for important physics discussions with Pasquale Blasi, Fiorenza Donato, Jonathan Ellis, Jonathan Feng, Mischa Malkov, Igor Moskalenko, and Subir Sarkar. We thank former NASA Administrator Daniel S. Goldin for his dedication to the legacy of the ISS as a scientific laboratory and his decision for NASA to fly AMS as a DOE payload. We also acknowledge the continuous support of the NASA leadership, particularly William H. Gerstenmaier, and of the JSC and MSFC flight control teams that have allowed AMS to operate optimally on the ISS for over eight years. We are grateful for the support of Jim Siegrist and his staff of the DOE including resources from the National Energy Research Scientific Computing Center under Contract No. DE-AC02-05CH11231. We also acknowledge the continuous support from MIT and its School of Science, Michael Sipser, and Boleslaw Wyslouch. Research supported by São Paulo Research Foundation (FAPESP) Grant No. 2014/19149-7, Brazil; CAS, NSFC, MOST, the provincial governments of Shandong, Jiangsu, Guangdong, and the China Scholarship Council, China; the Academy of Finland (Center of Excellence ReSoLVE), Project No. 307411, Finland; CNRS/IN2P3, CNES, Enigmass, and the ANR, France; Pascale Ehrenfreund, DLR under Grant No. 50OO1403 and Jülich Aachen Research Alliance – High Performance Computing under Project No. JARA0052, Germany; INFN and ASI under ASI-INFN Agreements No. 2013-002-R.0 and No. 2014-037-R.0, Italy; Center for High Energy Physics and NRF under Grant No. NRF-2018R1A6A1A06024970 at Kyungpook National University, Korea; the Consejo Nacional de Ciencia y Tecnología and UNAM, Mexico; NWO under Grant. No. 680-1-004, The Netherlands; FCT under Grant No. PTDC/FIS/122567/2010, Portugal; CIEMAT, Instituto de Astrofísica de Canarias, CDTI, and SEIDI-MINECO under Grants No. ESP2017-87055-C2-1-P, No. SEV-2015-0548, No. MDM-2015-0509, and No. RyC-2013-14660, Spain; the Swiss National Science Foundation (SNSF), federal and cantonal authorities, Switzerland; Academia Sinica and the Ministry of Science and Technology (MOST) under Grants No. 103-2112-M-006-018-MY3, No. 105-2112-M-001-003, and No. CDA-105-M06, former Presidents of Academia Sinica Yuan-Tseh Lee and Chi-Huey Wong and former Ministers of MOST Maw-Kuen Wu and Luo-Chuan Lee, Taiwan; the Turkish Atomic Energy Authority under Grants No. 2017TAEK(CERN)A5.H6.F2-15, Turkey; and NSF Grants No. 14255202 and No. 1551980, Wyle Laboratories Grant No. 2014/T72497, and NASA NESSF Grant No. HELIO15F-0005, USA. We gratefully acknowledge the strong support from CERN including Fabiola Gianotti, and the CERN IT department including Bernd Panzer-Steindel, and from the European Space Agency including Johann-Dietrich Wörner and Simonetta Di Pippo.
Academy of Finland Grant Number: 307411
Detailed Information: 307411 (Academy of Finland Funding decision)
Copyright information: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
  https://creativecommons.org/licenses/by/4.0/