Cosmic-ray positron measurements: on the origin of the e+ excess and limits on magnetar birthrate

Grimani, C.

doi:10.22323/1.236.0457

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…Results are illustrated in the left panels of figures 7-9 for the 23 February 1956, 15 November 1960 and 7 May 1978 events, respectively. For the 23 February 1956 event the radiation monitor count rates range between +40% and +20% above values obtained from assuming an isotropic SEP incidence, while the events in coincidence mode at onset are approximately −40% compared with an isotropic SEP distribution [44,45]. These values are similar to those obtained for the event of 7 May 1978 whereas the 15 November 1960 event is lower by a few per cent, with the specifics depending on the characteristics of the PAD for the three events.…”

Section: Lisa-pf Radiation Monitor Performance During Sep Eventssupporting

confidence: 73%

LISA-PF radiation monitor performance during the evolution of SEP events for the monitoring of test-mass charging

Grimani

Fabi

et al. 2014

Class. Quantum Grav.

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Cosmic rays of solar and galactic origin at energies >100 MeV/n charge and induce spurious forces on free-floating test masses on board interferometers devoted to gravitational wave detection in space. LISA Pathfinder (LISA-PF), the technology testing mission for eLISA/NGO, will carry radiation monitors for on board test-mass charging monitoring. We present here the results of a simulation of radiation monitor performance during the evolution of solar energetic particle (SEP) events of different intensity. This simulation was carried out with the Fluka Monte Carlo package by taking into account for the first time both energy and spatial distributions of solar protons for the SEP events of 23 February 1956, 15 November 1960 and 7 May 1978. Input data for the Monte Carlo simulations was inferred from neutron monitor measurements. Conversely, for the SEP event of 13 December 2006 observed by the PAMELA experiment in space, we used the proton pitch angle distribution (PAD) computed from the Particle Acceleration and Transport in the Heliosphere (PATH) code. We plan to adopt this approach at the time of LISA-PF data analysis in order to optimize the correlation between radiation monitor observations and test-mass charging. The results of this work can be extended to the future space interferometers and other space missions carrying instruments for SEP detection.

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Section: Lisa-pf Radiation Monitor Performance During Sep Eventssupporting

confidence: 73%

LISA-PF radiation monitor performance during the evolution of SEP events for the monitoring of test-mass charging

Grimani

Fabi

et al. 2014

Class. Quantum Grav.

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show abstract

“…IceCube: Search for neutrinos from dark matter annihilations in the Sun M. Rameez Figure 5: Limits on the spin dependent WIMP-Nucleon scattering cross section as a function of the WIMP mass, derived from this analysis and compared to other experiments' limits from [15,18,19,21,22]. The red band around the limit signifies systematic uncertainties.…”

Section: Pos(icrc2015)1209mentioning

confidence: 97%

“…Dark Matter Marco Cirelli remnants etc: this possibility is discussed in detail in several contributions to these ICRC 2015 proceedings [18,19,20,21]. It is however very tempting to try and read in these 'excesses' the signature of DM.…”

Section: Pos(icrc2015)014mentioning

confidence: 99%