Title
An Anisotropic Model for Galactic Cosmic Ray Transport: and its Implications for Indirect Dark Matter Searches,Used
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The origin of cosmic rays has been intriguing scientists since 1912 when Victor Hess carried out his famous balloon flight to measure the ionization rate in the upper atmosphere. Since then cosmic ray physics brings together physicists from a variety of different fields such as astrophysics, cosmology and particle physics. The increasing amount of available data has enabled us to successfully describe the transport of Galactic cosmic rays in a simple isotropic diffusion picture. However, recent data from the ROSAT satellite indicate that the Milky Way launches significant Galactic winds. Such wind speeds cannot be explained in the context of isotropic diffusion models. In this work an anisotropic transport model, which allows for ROSAT compatible wind velocities and still meets all the constraints from primary and secondary cosmic rays, cosmic clocks and gamma rays, is introduced. Such a model predicts a large bulge over disk ratio in the positron annihilation signal, in agreement with the INTEGRAL observations. Furthermore, the implications of anisotropic Galactic cosmic ray transport for indirect dark matter searches in charged cosmic rays and diffuse gamma rays are discussed.
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
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To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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