GALPROP cosmic-ray propagation code: recent results and updates

Kavli Affiliate: Troy A. Porter | First 5 Authors: Elena Orlando, Gudlaugur Johannesson, Igor V. Moskalenko, Troy A. Porter, Andrew Strong | Summary: Information on cosmic-ray (CR) composition comes from direct CR measurements while their distribution in the Galaxy is evaluated from observations of their associated diffuse emission in the range from radio to gamma […]


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Solar gamma rays and modulation of cosmic rays in the inner heliosphere

Kavli Affiliate: Igor Moskalenko | First 5 Authors: Elena Orlando, Nicola Giglietto, Igor Moskalenko, Silvia Raino’, Andrew Strong | Summary: The first evidence of the gamma-ray emission from the quiescent Sun was found in the archival EGRET data that was later confirmed by Fermi-LAT observations with high significance. This emission is produced by Galactic cosmic […]


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Fourier transform on hyperplane arrangements

Kavli Affiliate: Mikhail Kapranov | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We consider the category of perverse sheaves on a complex vector space smooth with respect to a stratification given by an arrangement of hyperplanes with real equations. As shown in an earlier wotk of two of the authors, this category […]


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Temperature Structure in the Perseus Cluster Core Observed with Hitomi

Kavli Affiliate: Marshall W. Bautz | First 5 Authors: Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen | Summary: The present paper investigates the temperature structure of the X-ray emitting plasma in the core of the Perseus cluster using the 1.8–20.0 keV data obtained with the Soft X-ray Spectrometer (SXS) onboard the […]


Continue.. Temperature Structure in the Perseus Cluster Core Observed with Hitomi

Temperature Structure in the Perseus Cluster Core Observed with Hitomi

Kavli Affiliate: Marshall W. Bautz | First 5 Authors: Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen | Summary: The present paper investigates the temperature structure of the X-ray emitting plasma in the core of the Perseus cluster using the 1.8–20.0 keV data obtained with the Soft X-ray Spectrometer (SXS) onboard the […]


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Acceleration Profiles and Processing Methods for Parabolic Flight

Kavli Affiliate: Maria T. Zuber | First 5 Authors: Christopher E. Carr, Noelle C. Bryan, Kendall N. Saboda, Srinivasa A. Bhattaru, Gary Ruvkun | Summary: Parabolic flights provide cost-effective, time-limited access to "weightless" or reduced gravity conditions experienced in space or on planetary surfaces, e.g. the Moon or Mars. These flights facilitate fundamental research – […]


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Cosmology with the pairwise kinematic SZ effect: Calibration and validation using hydrodynamical simulations

Kavli Affiliate: George Efstathiou | First 5 Authors: Bjoern Soergel, Alexandro Saro, Tommaso Giannantonio, George Efstathiou, Klaus Dolag | Summary: We study the potential of the kinematic SZ effect as a probe for cosmology, focusing on the pairwise method. The main challenge is disentangling the cosmologically interesting mean pairwise velocity from the cluster optical depth […]


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Thermodynamic Profiles of Galaxy Clusters from a Joint X-ray/SZ Analysis

Kavli Affiliate: Sunil R. Golwala | First 5 Authors: Jennifer A. Shitanishi, Elena Pierpaoli, Jack Sayers, Sunil R. Golwala, Silvia Ameglio | Summary: We jointly analyze Bolocam Sunyaev-Zeldovich (SZ) effect and Chandra X-ray data for a set of 45 clusters to derive gas density and temperature profiles without using spectroscopic information. The sample spans the […]


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Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi

Kavli Affiliate: Marshall W. Bautz | First 5 Authors: Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen | Summary: The Hitomi SXS spectrum of the Perseus cluster, with $sim$5 eV resolution in the 2-9 keV band, offers an unprecedented benchmark of the atomic modeling and database for hot collisional plasmas. It reveals […]


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Single-particle Mass Spectrometry with arrays of frequency-addressed nanomechanical resonators

Kavli Affiliate: Michael L. Roukes | First 5 Authors: Eric Sage, Marc Sansa, Shawn Fostner, Martial Defoort, Marc Gély | Summary: One of the main challenges to overcome to perform nanomechanical Mass Spectrometry (NEMS-MS) analysis in a practical time frame stems from the size mismatch between the analyte beam and the extremely small nanomechanical detector […]


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