Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data

Abdollahi, S.; Ackermann, M.; Ajello, M.; Albert, A.; Atwood, W. B.; Baldini, L.; Barbiellini, G.; Bellazzini, R.; Bissaldi, E.; Bloom, E. D.; Bonino, R.; Bottacini, E.; Brandt, T. J.; Bruel, P.; Buson, S.; Caragiulo, M.; Cavazzuti, E.; Chekhtman, A.; Ciprini, S.; Costanza, F.; Cuoco, A.; Cutini, S.; D’Ammando, F.; de Palma, F.; Desiante, R.; Digel, S. W.; Di Lalla, N.; Di Mauro, M.; Di Venere, L.; Donaggio, B.; Drell, P. S.; Favuzzi, C.; Focke, W. B.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Giglietto, N.; Giordano, F.; Giroletti, M.; Green, D.; Guiriec, S.; Harding, A. K.; Jogler, T.; Jóhannesson, G.; Kamae, T.; Kuss, M.; Larsson, S.; Latronico, L.; Li, J.; Longo, F.; Loparco, F.; Lubrano, P.; Magill, J. D.; Malyshev, D.; Manfreda, A.; Mazziotta, M. N.; Meehan, M.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A. A.; Monzani, M. E.; Morselli, A.; Negro, M.; Nuss, E.; Ohsugi, T.; Omodei, N.; Paneque, D.; Perkins, J. S.; Pesce-Rollins, M.; Piron, F.; Pivato, G.; Principe, G.; Rainò, S.; Rando, R.; Razzano, M.; Reimer, A.; Reimer, O.; Sgrò, C.; Simone, D.; Siskind, E. J.; Spada, F.; Spandre, G.; Spinelli, P.; Strong, A. W.; Tajima, H.; Thayer, J. B.; Torres, D. F.; Troja, E.; Vandenbroucke, J.; Zaharijas, G.; Zimmer, S.

doi:10.1103/PhysRevLett.118.091103

Title: Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data

Abstract

We present the Large Area Telescope on board the Fermi Gamma-ray Space Telescope that has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation. Potential anisotropies in the arrival directions of cosmic-ray electrons or positrons could be a signature of the presence of nearby sources. We use almost seven years of data with energies above 42 GeV processed with the Pass 8 reconstruction. The present data sample can probe dipole anisotropies down to a level of 10^-3. We take into account systematic effects that could mimic true anisotropies at this level. We present a detailed study of the event selection optimization of the cosmic-ray electrons and positrons to be used for anisotropy searches. Since no significant anisotropies have been detected on any angular scale, we present upper limits on the dipole anisotropy. Lastly, the present constraints are among the strongest to date probing the presence of nearby young and middle-aged sources.

Authors:: Abdollahi, S.; Ackermann, M.; Ajello, M.; Albert, A.; Atwood, W. B.; Baldini, L.; Barbiellini, G.; Bellazzini, R.; Bissaldi, E.; Bloom, E. D.; Bonino, R.; Bottacini, E.; Brandt, T. J.; Bruel, P.; Buson, S.; Caragiulo, M.; Cavazzuti, E.; Chekhtman, A.; Ciprini, S.; Costanza, F. more »« less

Publication Date:: Wed Mar 01 00:00:00 EST 2017

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

Contributing Org.:: Fermi-LAT Collaboration

OSTI Identifier:: 1355735

Alternate Identifier(s):: OSTI ID: 1345441

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 118; Journal Issue: 9; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Cosmic Ray Electrons; Anisotropy; Pulsar; SNR; Dark Matter

Citation Formats


                    Abdollahi, S., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Barbiellini, G., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bruel, P., Buson, S., Caragiulo, M., Cavazzuti, E., Chekhtman, A., Ciprini, S., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Donaggio, B., Drell, P. S., Favuzzi, C., Focke, W. B., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Malyshev, D., Manfreda, A., Mazziotta, M. N., Meehan, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Strong, A. W., Tajima, H., Thayer, J. B., Torres, D. F., Troja, E., Vandenbroucke, J., Zaharijas, G., and Zimmer, S. Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevLett.118.091103.

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                    Abdollahi, S., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Barbiellini, G., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bruel, P., Buson, S., Caragiulo, M., Cavazzuti, E., Chekhtman, A., Ciprini, S., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Donaggio, B., Drell, P. S., Favuzzi, C., Focke, W. B., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Malyshev, D., Manfreda, A., Mazziotta, M. N., Meehan, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Strong, A. W., Tajima, H., Thayer, J. B., Torres, D. F., Troja, E., Vandenbroucke, J., Zaharijas, G., & Zimmer, S. Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data.  United States.  https://doi.org/10.1103/PhysRevLett.118.091103

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                    Abdollahi, S., Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Barbiellini, G., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bruel, P., Buson, S., Caragiulo, M., Cavazzuti, E., Chekhtman, A., Ciprini, S., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Donaggio, B., Drell, P. S., Favuzzi, C., Focke, W. B., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Malyshev, D., Manfreda, A., Mazziotta, M. N., Meehan, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Strong, A. W., Tajima, H., Thayer, J. B., Torres, D. F., Troja, E., Vandenbroucke, J., Zaharijas, G., and Zimmer, S. Wed .  
"Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data".  United States.  https://doi.org/10.1103/PhysRevLett.118.091103.  https://www.osti.gov/servlets/purl/1355735.

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@article{osti_1355735,

  title        = {Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data},

  author       = {Abdollahi, S. and Ackermann, M. and Ajello, M. and Albert, A. and Atwood, W. B. and Baldini, L. and Barbiellini, G. and Bellazzini, R. and Bissaldi, E. and Bloom, E. D. and Bonino, R. and Bottacini, E. and Brandt, T. J. and Bruel, P. and Buson, S. and Caragiulo, M. and Cavazzuti, E. and Chekhtman, A. and Ciprini, S. and Costanza, F. and Cuoco, A. and Cutini, S. and D’Ammando, F. and de Palma, F. and Desiante, R. and Digel, S. W. and Di Lalla, N. and Di Mauro, M. and Di Venere, L. and Donaggio, B. and Drell, P. S. and Favuzzi, C. and Focke, W. B. and Fukazawa, Y. and Funk, S. and Fusco, P. and Gargano, F. and Gasparrini, D. and Giglietto, N. and Giordano, F. and Giroletti, M. and Green, D. and Guiriec, S. and Harding, A. K. and Jogler, T. and Jóhannesson, G. and Kamae, T. and Kuss, M. and Larsson, S. and Latronico, L. and Li, J. and Longo, F. and Loparco, F. and Lubrano, P. and Magill, J. D. and Malyshev, D. and Manfreda, A. and Mazziotta, M. N. and Meehan, M. and Michelson, P. F. and Mitthumsiri, W. and Mizuno, T. and Moiseev, A. A. and Monzani, M. E. and Morselli, A. and Negro, M. and Nuss, E. and Ohsugi, T. and Omodei, N. and Paneque, D. and Perkins, J. S. and Pesce-Rollins, M. and Piron, F. and Pivato, G. and Principe, G. and Rainò, S. and Rando, R. and Razzano, M. and Reimer, A. and Reimer, O. and Sgrò, C. and Simone, D. and Siskind, E. J. and Spada, F. and Spandre, G. and Spinelli, P. and Strong, A. W. and Tajima, H. and Thayer, J. B. and Torres, D. F. and Troja, E. and Vandenbroucke, J. and Zaharijas, G. and Zimmer, S.},

  abstractNote = {We present the Large Area Telescope on board the Fermi Gamma-ray Space Telescope that has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation. Potential anisotropies in the arrival directions of cosmic-ray electrons or positrons could be a signature of the presence of nearby sources. We use almost seven years of data with energies above 42 GeV processed with the Pass 8 reconstruction. The present data sample can probe dipole anisotropies down to a level of 10-3. We take into account systematic effects that could mimic true anisotropies at this level. We present a detailed study of the event selection optimization of the cosmic-ray electrons and positrons to be used for anisotropy searches. Since no significant anisotropies have been detected on any angular scale, we present upper limits on the dipole anisotropy. Lastly, the present constraints are among the strongest to date probing the presence of nearby young and middle-aged sources.},

  doi          = {10.1103/PhysRevLett.118.091103},

  journal      = {Physical Review Letters},

  number       = 9,

  volume       = 118,

  place        = {United States},

  year         = {Wed Mar 01 00:00:00 EST 2017},

  month        = {Wed Mar 01 00:00:00 EST 2017}

}

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Figure 1: Method 1 (left) and Method 2 (right) APS as a function of the multipole l for ideal detectors with a 50◦ FoV radius based on 1000 independent simulations. The colored bands show the regions corresponding to different quantiles at ±1σ (green), ±2σ (yellow) and ±3σ (gray) respectively. Themore »

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Pulsars as the sources of high energy cosmic ray positrons

Journal Article Hooper, Dan ; Blasi, Pasquale ; Serpico, Pasquale Dario, E-mail: dhooper@fnal.gov, E-mail: blasi@arcetri.astro.it, E-mail: serpico@cern.ch - Journal of Cosmology and Astroparticle Physics

Recent results from the PAMELA satellite indicate the presence of a large flux of positrons (relative to electrons) in the cosmic ray spectrum between approximately 10 and 100 GeV. As annihilating dark matter particles in many models are predicted to contribute to the cosmic ray positron spectrum in this energy range, a great deal of interest has resulted from this observation. Here, we consider pulsars (rapidly spinning, magnetized neutron stars) as an alternative source of this signal. After calculating the contribution to the cosmic ray positron and electron spectra from pulsars, we find that the spectrum observed by PAMELA couldmore »« less
https://doi.org/10.1088/1475-7516/2009/01/025
Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope

Journal Article Ackermann, M. - Physical Review. D, Particles, Fields, Gravitation and Cosmology

The Large Area Telescope on board the Fermi satellite (Fermi LAT) detected more than 1.6 × 10⁶ cosmic-ray electrons/positrons with energies above 60 GeV during its first year of operation. The arrival directions of these events were searched for anisotropies of angular scale extending from ~ 10 ° up to 90°, and of minimum energy extending from 60 GeV up to 480 GeV. Two independent techniques were used to search for anisotropies, both resulting in null results. Upper limits on the degree of the anisotropy were set that depended on the analyzed energy range and on the anisotropy’s angular scale.more »« less
Cited by 62
https://doi.org/10.1103/PhysRevD.82.092003

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Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope

Journal Article Ackermann, M ; Ajello, M ; Bechtol, K ; ... - Physical Review. D, Particles Fields

The Large Area Telescope on board the Fermi satellite (Fermi LAT) detected more than 1.6x10{sup 6} cosmic-ray electrons/positrons with energies above 60 GeV during its first year of operation. The arrival directions of these events were searched for anisotropies of angular scale extending from {approx}10 deg. up to 90 deg., and of minimum energy extending from 60 GeV up to 480 GeV. Two independent techniques were used to search for anisotropies, both resulting in null results. Upper limits on the degree of the anisotropy were set that depended on the analyzed energy range and on the anisotropy's angular scale. Themore »« less
https://doi.org/10.1103/PHYSREVD.82.092003
Dipole anisotropy in cosmic electrons and positrons: inspection on local sources

Journal Article Manconi, S. ; Donato, F. ; Mauro, M. Di, E-mail: manconi@to.infn.it, E-mail: mdimauro@slac.stanford.edu, E-mail: donato@to.infn.it - Journal of Cosmology and Astroparticle Physics

The cosmic electrons and positrons have been measured with unprecedented statistics up to several hundreds GeV, thus permitting to explore the role that close single sources can have in shaping the flux at different energies. In the present analysis, we consider electrons and positrons in cosmic rays to be produced by spallations of hadron fluxes with the interstellar medium, by a smooth Supernova Remnant (SNR) population, by all the ATNF catalog pulsars, and by few discrete, local SNRs. We test several source models on the e {sup ++} e {sup −} and e {sup +} AMS-02 flux data. For themore »« less
https://doi.org/10.1088/1475-7516/2017/01/006

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Title: Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data

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Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station journal, April 2015

THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION journal, May 2009

Angular power spectra with finite counts journal, March 2015

On possible interpretations of the high energy electron–positron spectrum measured by the Fermi Large Area Telescope journal, September 2009

Origin and Propagation of Cosmic-Ray Electrons journal, December 1969

Probing the Pulsar Origin of the Anomalous Positron Fraction with Ams-02 and Atmospheric Cherenkov Telescopes journal, July 2013

Solar Modulation of Galactic Cosmic Rays journal, November 1968

Time-Average-Based Methods for Multi-Angular Scale Analysis of Cosmic-Ray data journal, March 2013

An Apparent Effect of Galactic Rotation on the Intensity of Cosmic Rays journal, June 1935

HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere journal, April 2005

Angular power spectrum of the diffuse gamma-ray emission as measured by the Fermi Large Area Telescope and constraints on its dark matter interpretation journal, December 2016

Analysis methods for results in gamma-ray astronomy journal, September 1983

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station journal, September 2014

Cosmic-ray electron anisotropies as a tool to discriminate between exotic and astrophysical sources journal, September 2010

Cosmic ray nuclei, antiprotons and gamma rays in the galaxy: a new diffusion model journal, October 2008

Pulsars and Very High-Energy Cosmic-Ray Electrons journal, November 1970

Measurement of Separate Cosmic-Ray Electron and Positron Spectra with the Fermi Large Area Telescope journal, January 2012

Constraints on dark matter models from a Fermi LAT search for high-energy cosmic-ray electrons from the Sun journal, August 2011

Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope journal, November 2010

Production of secondary particles and nuclei in cosmic rays collisions with the interstellar gas using the FLUKA code journal, August 2016

Deciphering the Dipole Anisotropy of Galactic Cosmic Rays journal, October 2016

International Geomagnetic Reference Field: the 12th generation journal, May 2015

Implications of the cosmic ray electron spectrum and anisotropy measured with Fermi-LAT journal, February 2011

Dark matter electron anisotropy: A universal upper limit journal, March 2012

Erratum: Cosmic-ray nuclei, antiprotons and gamma-rays in the galaxy: a new diffusion model journal, April 2016

Dipole anisotropy in cosmic electrons and positrons: inspection on local sources journal, January 2017

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station conference, March 2016

Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station text, January 2015

Cosmic-Ray Nuclei, Antiprotons and Gamma-rays in the Galaxy: a New Diffusion Model text, January 2008

On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope text, January 2009

Cosmic ray electron anisotropies as a tool to discriminate between exotic and astrophysical sources text, January 2009

Searches for Cosmic-Ray Electron Anisotropies with the Fermi Large Area Telescope text, January 2010

Deciphering the Dipole Anisotropy of Galactic Cosmic Rays text, January 2016

Dipole anisotropy in cosmic electrons and positrons: inspection on local sources text, January 2016

HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere text, January 2004

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons journal, November 2017

Dark matter indirect signals with long-lived mediators journal, November 2017

Theoretical Interpretation of Pass 8 Fermi -LAT e + + e − Data journal, August 2017

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope journal, September 2019

Consequences of Energetic Magnetar-like Outbursts of Nearby Neutron Stars: 14 C Events and the Cosmic Electron Spectrum journal, December 2019

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope text, January 2019

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope collection, January 2019

Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope collection, January 2017

Dark matter indirect signals with long-lived mediators text, January 2017

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons text, January 2017

Consequences of Energetic Magnetar-Like Outbursts of Nearby Neutron Stars: $^{14}$C Events and the Cosmic Electron Spectrum text, January 2019

Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station
journal, April 2015

THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009

Angular power spectra with finite counts
journal, March 2015

On possible interpretations of the high energy electron–positron spectrum measured by the Fermi Large Area Telescope
journal, September 2009

Origin and Propagation of Cosmic-Ray Electrons
journal, December 1969

Probing the Pulsar Origin of the Anomalous Positron Fraction with Ams-02 and Atmospheric Cherenkov Telescopes
journal, July 2013

Solar Modulation of Galactic Cosmic Rays
journal, November 1968

Time-Average-Based Methods for Multi-Angular Scale Analysis of Cosmic-Ray data
journal, March 2013

An Apparent Effect of Galactic Rotation on the Intensity of Cosmic Rays
journal, June 1935

HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere
journal, April 2005

Angular power spectrum of the diffuse gamma-ray emission as measured by the Fermi Large Area Telescope and constraints on its dark matter interpretation
journal, December 2016

Analysis methods for results in gamma-ray astronomy
journal, September 1983

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
journal, September 2014

Cosmic-ray electron anisotropies as a tool to discriminate between exotic and astrophysical sources
journal, September 2010

Cosmic ray nuclei, antiprotons and gamma rays in the galaxy: a new diffusion model
journal, October 2008

Pulsars and Very High-Energy Cosmic-Ray Electrons
journal, November 1970

Measurement of Separate Cosmic-Ray Electron and Positron Spectra with the Fermi Large Area Telescope
journal, January 2012

Constraints on dark matter models from a Fermi LAT search for high-energy cosmic-ray electrons from the Sun
journal, August 2011

Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope
journal, November 2010

Production of secondary particles and nuclei in cosmic rays collisions with the interstellar gas using the FLUKA code
journal, August 2016

Deciphering the Dipole Anisotropy of Galactic Cosmic Rays
journal, October 2016

International Geomagnetic Reference Field: the 12th generation
journal, May 2015

Implications of the cosmic ray electron spectrum and anisotropy measured with Fermi-LAT
journal, February 2011

Dark matter electron anisotropy: A universal upper limit
journal, March 2012

Erratum: Cosmic-ray nuclei, antiprotons and gamma-rays in the galaxy: a new diffusion model
journal, April 2016

Dipole anisotropy in cosmic electrons and positrons: inspection on local sources
journal, January 2017

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
conference, March 2016

Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station
text, January 2015

Cosmic-Ray Nuclei, Antiprotons and Gamma-rays in the Galaxy: a New Diffusion Model
text, January 2008

On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope
text, January 2009

Cosmic ray electron anisotropies as a tool to discriminate between exotic and astrophysical sources
text, January 2009

Searches for Cosmic-Ray Electron Anisotropies with the Fermi Large Area Telescope
text, January 2010

Deciphering the Dipole Anisotropy of Galactic Cosmic Rays
text, January 2016

Dipole anisotropy in cosmic electrons and positrons: inspection on local sources
text, January 2016

HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
text, January 2004

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
journal, November 2017

Dark matter indirect signals with long-lived mediators
journal, November 2017

Theoretical Interpretation of Pass 8 Fermi -LAT e ⁺ + e ⁻ Data
journal, August 2017

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope
journal, September 2019

Consequences of Energetic Magnetar-like Outbursts of Nearby Neutron Stars: ¹⁴ C Events and the Cosmic Electron Spectrum
journal, December 2019

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope
text, January 2019

A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope
collection, January 2019

Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
collection, January 2017

Dark matter indirect signals with long-lived mediators
text, January 2017

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
text, January 2017

Consequences of Energetic Magnetar-Like Outbursts of Nearby Neutron Stars: $^{14}$C Events and the Cosmic Electron Spectrum
text, January 2019