NDLI: Propagation of H and He cosmic ray isotopes in the Galaxy: astrophysical and nuclear uncertainties

Content Provider	Springer Nature Link
Author	Tomassetti, Nicola
Copyright Year	2012
Abstract	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−1, we compare the measurements on 1 H, 2 H, 3 He, and 4 He with calculations for interstellar propagation and solar modulation. These data are described well by a diffusive-reacceleration model with parameters that match the B/C ratio data, indicating that He and heavier nuclei such as C–N–O experience similar propagation histories. Close comparisons are made within the astrophysical constraints provided by the B/C ratio data and within the nuclear uncertainties arising from errors in the production cross section data. The astrophysical uncertainties are expected to be dramatically reduced by the data upcoming from AMS-02, so that the nuclear uncertainties will likely represent the most serious limitation on the reliability of the model predictions. On the other hand, we find that secondary-to-secondary ratios such as 2 H/3 He, 6 Li/7 Li or 10 B/11 B are barely sensitive to the key propagation parameters and can represent a useful diagnostic test for the consistency of the calculations.
Starting Page	131
Ending Page	136
Page Count	6
File Format	PDF
ISSN	0004640X
Journal	Astrophysics and Space Science
Volume Number	342
Issue Number	1
e-ISSN	1572946X
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-06-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cosmic rays Acceleration of particles Nuclear reactions, nucleosynthesis, abundances Astrobiology Astrophysics and Astroparticles Extraterrestrial Physics, Space Sciences Cosmology Astronomy, Observations and Techniques
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Production and evolution of Li, Be, and B isotopes in the Galaxy

Global Galactic distribution of the 1.275 MeV γ-ray line emission

Spectral and intensity variations of Galactic Al emission

Dynamical effect of cosmic-ray particles on astrophysical plasma flows

SPI observations of the diffuse 60Fe emission in the Galaxy

Propagation of H and He Cosmic Ray Isotopes in the Galaxy: Astrophysical and Nuclear Uncertainties

Cosmic absorption of ultra high energy particles

First stars VII - Lithium in extremely metal poor dwarfs

An explanation of the correlations of abundance ratio between neutron-capture elements and iron group elements in Ba stars

Propagation of H and He cosmic ray isotopes in the Galaxy: astrophysical and nuclear uncertainties

Similar Documents

Production and evolution of Li, Be, and B isotopes in the Galaxy

Global Galactic distribution of the 1.275 MeV γ-ray line emission

Spectral and intensity variations of Galactic Al emission

Dynamical effect of cosmic-ray particles on astrophysical plasma flows

SPI observations of the diffuse 60Fe emission in the Galaxy

Propagation of H and He Cosmic Ray Isotopes in the Galaxy: Astrophysical and Nuclear Uncertainties

Cosmic absorption of ultra high energy particles

First stars VII - Lithium in extremely metal poor dwarfs

An explanation of the correlations of abundance ratio between neutron-capture elements and iron group elements in Ba stars

Propagation of H and He cosmic ray isotopes in the Galaxy: astrophysical and nuclear uncertainties