Ph.D. activities - Alberto Manfreda
Courses 2014/2015
Course of particle physics at University of Pisa (prof. G. Punzi) Course of cosmology at Scuola Normale Superiore (prof. A. Ferrara) 2015/2016
Course of scienti c writing at University of Pisa (prof. S. Shore)
Course of electronics and sensors at University of Pisa (prof. D. Passuelo)
Exams October 2015
Entrance exam for the second year of Ph.D. (grade: Distinto). October 2016
Entrance exam for the third year of Ph.D. (grade: Distinto). Seminars June 2015
Talk for the Ph.D. course: "Study of Cosmic Ray Electrons with the Large Area Telescope"
September 2016
Report on the Ph.D.thesis work: "A new measurement of the cosmic ray electron and positron spectrum with the Large Area Telescope"
Research activity My main research activity concerned the study of charged cosmic rays with the Fermi Large Area Telescope (LAT)1, an activity which I carried on in Pisa within the local section of the Istituto Nazionale di Fisica Nucleare2.
I participated to a measurement of the inclusive spectrum of cosmic-ray electrons and positrons with LAT data by developing a dedicated selection for the rejection of the hadronic background and by simulating and correcting the eect of the geo-magnetic eld on the spectrum. The measurement was the object of a publication, signed by the entire Fermi-LAT collaboration[28], of which I was one of the contact authors.
Since the beginning of my Ph.D. I have been an active member of the Fermi-LAT international collaboration, and I am currently one of the coordinators of the science group dedicated to direct observations of cosmic-rays, as well as of the science group studying the diuse emission of gamma rays produced by the interaction of cosmic rays with the interstellar medium.
Since 2016 I was also involved in the IXPE experiment, a X-ray polarimeter which has been recently selected for a future space mission as part of the Astrophysics Explorer Program3. In the context of this work, I took part to the development of both the physical detector which represents the core of IXPE, the Gas Pixel Detector (GPD), as well as of most of the related software.
1https://www-glast.stanford.edu/
2National Institute for Nucear Physicshttp://www.pi.infn.it/ 3https://explorers.gsfc.nasa.gov/index.html
On the software side, I am currently one of the main developer of the event recon-struction application and I am participating to the creation of the future ground pipeline, which will provide o-line data processing during the mission. Further-more, I have contributed to the development of the data acquisition software used for testing the GPD prototypes and I have also created an application for on-line monitoring of the data ow and one for the graphical displaying of the data collected.
Concerning hardware, I was involved in the characterization of two of the GPD prototypes built, in terms of both energy resolution and sensitivity to polarization. I have also tested several samples of one of the main component of the detector, the Gas Electron Multiplier (GEM), with the aim of selecting the best ones for the production of future detectors.
Teaching 2015/2016 and 2016/2017 Assistant for the course of Laboratorio di Fisica I (Laboratory of Physics I) for the Bachelor Degree in Physics at the University of Pisa.
Other activities June 2016 XIII Seminar on Software for Nuclear Subnuclear and Applied Phy-sics in Porto Conte, Alghero.
Seminar dedicated to the study of software commonly used in fundamental and applied physics (Geant4) and to an introduction to GPU parallel pro-gramming.
https://agenda.infn.it/conferenceDisplay.py?confId=10583
Contribution to
Conferences Geomagnetic eects on the CR Electron Spectrum measured by the Fermi-LAT(poster) Sixth International Fermi Symposium, Washington DC (November 2015)
https://fermi.gsfc.nasa.gov/science/mtgs/symposia/2015/
A new measurement of cosmic-ray electrons and positrons with the Large Area Telescope (oral)
SciNeGHE 2016, Pisa (October 2016).
https://agenda.infn.it/conferenceDisplay.py?confId=11102
A new measurement of cosmic-ray electrons and positrons with the Large Area Telescope (oral)
APS April Meeting 2017, Washington DC (January 2017). http://meetings.aps.org/Meeting/APR17/PersonIndex/3246 Highlights from the Fermi Large Area Telescope (oral)
IFAE, XVI Edizione, Trieste (April 2017).
https://agenda.infn.it/conferenceDisplay.py?confId=12289
A new measurement of cosmic-ray electrons and positrons with the Large Area Telescope (poster)
35th International Cosmic Ray Conference 2017(ICRC2017), Busan (July 2017). http://www.icrc2017.org
Single author
publications 1. Manfreda, A. A new measurement of cosmic-ray electrons with the Fermi Lar-ge Area Telescope in Il Nuovo Cimento. "High-energy gamma-ray experimen-ts at the dawn of gravitational wave astronomy" (Proceedings of SciNeGHE) 40C(112) (2017).
2. Manfreda, A. A new measurement of cosmic-ray electrons with the Fermi Large Area Telescope in Proceedings of 35th International Cosmic Ray Con-ference 301 (2017).
Collaborative publications 4
3. Ackermann, M. et al. The Spectrum of Isotropic Diuse Gamma-Ray Emis-sion between 100 MeV and 820 GeV. ApJ 799, 86 (gen. 2015).
4. Ackermann, M. et al. Updated search for spectral lines from Galactic dark matter interactions with pass 8 data from the Fermi Large Area Telescope. Phys. Rev. D 91, 122002 (giu. 2015).
5. Clark, C. J. et al. PSR J1906+0722: An Elusive Gamma-Ray Pulsar. ApJ 809, L2 (ago. 2015).
6. Ackermann, M. et al. Search for Extended Gamma-Ray Emission from the Virgo Galaxy Cluster with FERMI-LAT. ApJ 812, 159 (ott. 2015).
7. Ackermann, M. et al. Multiwavelength Evidence for Quasi-periodic Modula-tion in the Gamma-Ray Blazar PG 1553+113. ApJ 813, L41 (nov. 2015). 8. Fermi LAT Collaboration et al. An extremely bright gamma-ray pulsar in
the Large Magellanic Cloud. Science 350, 801805 (nov. 2015).
9. Ackermann, M. et al. 2FHL: The Second Catalog of Hard Fermi-LAT Sources. ApJS 222, 5 (gen. 2016).
10. Ajello, M. et al. Fermi-LAT Observations of High-Energy Gamma-Ray Emis-sion toward the Galactic Center. ApJ 819, 44 (mar. 2016).
11. Acero, F. et al. Development of the Model of Galactic Interstellar Emission for Standard Point-source Analysis of Fermi Large Area Telescope Data. ApJS 223, 26 (apr. 2016).
12. Ajello, M. et al. Deep Morphological and Spectral Study of the SNR RCW 86 with Fermi-LAT. ApJ 819, 98 (mar. 2016).
13. Ackermann, M. et al. Search for Gamma-Ray Emission from the Coma Clu-ster with Six Years of Fermi-LAT Data. ApJ 819, 149 (mar. 2016).
14. Ackermann, M. et al. Contemporaneous Broadband Observations of Three High-redshift BL LAC Objects. ApJ 820, 72 (mar. 2016).
15. Ackermann, M. et al. Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope. Phys. Rev. D 93, 082001 (apr. 2016).
16. Ackermann, M. et al. Resolving the Extragalactic γ -Ray Background above 50 GeV with the Fermi Large Area Telescope. Physical Review Letters 116, 151105 (apr. 2016).
17. Ajello, M. et al. Search for Spectral Irregularities due to Photon-Axionlike-Particle Oscillations with the Fermi Large Area Telescope. Physical Review Letters 116, 161101 (apr. 2016).
18. Ackermann, M. et al. Fermi-LAT Observations of the LIGO Event GW150914. ApJ 823, L2 (mag. 2016).
19. Ackermann, M. et al. Minute-timescale >100 MeV γ-Ray Variability during the Giant Outburst of Quasar 3C 279 Observed by Fermi-LAT in 2015 June. ApJ 824, L20 (giu. 2016).
4In chronological order of publication
20. Ackermann, M. et al. Fermi Large Area Telescope Detection of Extended Gamma-Ray Emission from the Radio Galaxy Fornax A. ApJ 826, 1 (lug. 2016).
21. Abbott, B. P. et al. Localization and Broadband Follow-up of the Gravitational-wave Transient GW150914. ApJ 826, L13 (lug. 2016).
22. Muleri, F. et al. Performance of the Gas Pixel Detector: an x-ray imaging polarimeter for upcoming missions of astrophysics in Proc.SPIE 9905 (2016). 23. Ackermann, M. et al. Fermi-LAT Observations of High-energy
Behind-the-limb Solar Flares. ApJ 835, 219 (feb. 2017).
24. Ackermann, M. et al. Observations of M31 and M33 with the Fermi Large Area Telescope: A Galactic Center Excess in Andromeda? ApJ 836, 208 (feb. 2017).
25. Ackermann, M. et al. Gamma-Ray Blazars within the First 2 Billion Years. ApJ 837, L5 (mar. 2017).
26. Abdollahi, S. et al. Search for Cosmic-Ray Electron and Positron Anisotro-pies with Seven Years of Fermi Large Area Telescope Data. Physical Review Letters 118, 091103 (mar. 2017).
27. H.E.S.S. Collaboration et al. Gamma-ray blazar spectra with H.E.S.S. II mono analysis: The case of PKS 2155-304 and PG 1553+113. A&A 600, A89 (apr. 2017).
28. Abdollahi, S. et al. Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope. Phys. Rev. D 95, 082007 (apr. 2017).
29. Ackermann, M. et al. The Fermi Galactic Center GeV Excess and Implications for Dark Matter. ApJ 840, 43 (mag. 2017).
30. Ackermann, M. et al. Search for Extended Sources in the Galactic Plane Using Six Years of Fermi -Large Area Telescope Pass 8 Data above 10 GeV. The Astrophysical Journal 843, 139 (lug. 2017).
31. Goldstein, A. et al. Fermi Observations of the LIGO Event GW170104. The Astrophysical Journal Letters 846, L5 (ago. 2017).
32. Mauro, M. D. et al. Theoretical Interpretation of Pass 8 Fermi- LAT e++ e−
data. The Astrophysical Journal 845, 107 (ago. 2017).
33. Ajello, M. et al. 3FHL: The Third Catalog of Hard Fermi-LAT Sources. The Astrophysical Journal Supplement Series 232, 18 (set. 2017).
34. Abdollahi, S. et al. The Second Catalog of Flaring Gamma-Ray Sources from the Fermi All-sky Variability Analysis. ApJ 846, 34 (set. 2017).
35. Abbott, B. P. e. a. Multi-messenger Observations of a Binary Neutron Star Merger. The Astrophysical Journal Letters 848, L12 (ott. 2017).
36. Clark, C. J. et al. Einstein@Home discovers a radio-quiet gamma-ray milli-second pulsar. Science Advances 4 (feb. 2018).
