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P F Michelson

Explore the profile of P F Michelson including associated specialties, affiliations and a list of published articles. Areas
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Articles 34
Citations 90
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Recent Articles
1.
Ajello M, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, et al.
Astrophys J . 2022 Jan; 863(2). PMID: 35027772
We use joint observations by the X-ray Telescope (XRT) and the Large Area Telescope (LAT) of gamma-ray burst (GRB) afterglows to investigate the nature of the long-lived high-energy emission observed...
2.
Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Blandford R, Borgland A, et al.
Astrophys J . 2021 Oct; 784(2). PMID: 34646038
Observations of occultations of bright -ray sources by the Sun may reveal predicted pair halos around blazars andor new physics, such as, e.g., hypothetical light dark matter particles-axions. We use...
3.
Ackermann M, Ajello M, Albert A, Atwood W, Baldini L, Barbiellini G, et al.
Phys Rev D . 2020 Aug; 93(8):082001. PMID: 32743154
We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation,...
4.
Ackermann M, Ajello M, Baldini L, Ballet J, Barbiellini G, Bastieri D, et al.
Phys Rev Lett . 2019 Jan; 121(24):241101. PMID: 30608723
The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi -large area telescope (LAT), allowing us to resolve and understand the high-energy Universe. The...
5.
Abdollahi S, Ackermann M, Ajello M, Albert A, Atwood W, Baldini L, et al.
Phys Rev Lett . 2017 Mar; 118(9):091103. PMID: 28306280
The Large Area Telescope on board the Fermi Gamma-ray Space Telescope has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation....
6.
Ajello M, Albert A, Anderson B, Baldini L, Barbiellini G, Bastieri D, et al.
Phys Rev Lett . 2016 May; 116(16):161101. PMID: 27152783
We report on the search for spectral irregularities induced by oscillations between photons and axionlike-particles (ALPs) in the γ-ray spectrum of NGC 1275, the central galaxy of the Perseus cluster....
7.
Ackermann M, Ajello M, Albert A, Atwood W, Baldini L, Ballet J, et al.
Phys Rev Lett . 2016 Apr; 116(15):151105. PMID: 27127954
The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re-processed...
8.
Ackermann M, Albert A, Anderson B, Atwood W, Baldini L, Barbiellini G, et al.
Phys Rev Lett . 2015 Dec; 115(23):231301. PMID: 26684107
The dwarf spheroidal satellite galaxies (dSphs) of the Milky Way are some of the most dark matter (DM) dominated objects known. We report on γ-ray observations of Milky Way dSphs...
9.
Ackermann M, Ajello M, Albert A, Allafort A, Baldini L, Barbiellini G, et al.
Phys Rev Lett . 2014 May; 112(15):151103. PMID: 24785023
Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening...
10.
Ackermann M, Ajello M, Asano K, Atwood W, Axelsson M, Baldini L, et al.
Science . 2013 Nov; 343(6166):42-7. PMID: 24263133
The observations of the exceptionally bright gamma-ray burst (GRB) 130427A by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope provide constraints on the nature of these unique astrophysical...