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In-flight measureme...
In-flight measurement of the absolute energy scale of the Fermi Large Area Telescope
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Ackermann, M. (author)
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Ajello, M. (author)
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Allafort, A. (author)
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show more...
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Atwood, W. B. (author)
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- Axelsson, Magnus (author)
- Stockholms universitet,KTH,Partikel- och astropartikelfysik,Institutionen för astronomi
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Baldini, L. (author)
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Barbiellini, G. (author)
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Bastieri, D. (author)
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Bechtol, K. (author)
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Bellazzini, R. (author)
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Berenji, B. (author)
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Bloom, E. D. (author)
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Bonamente, E. (author)
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Borgland, A. W. (author)
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Bouvier, A. (author)
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Bregeon, J. (author)
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Brez, A. (author)
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Brigida, M. (author)
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Bruel, P. (author)
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Buehler, R. (author)
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Buson, S. (author)
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Caliandro, G. A. (author)
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Cameron, R. A. (author)
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Caraveo, P. A. (author)
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Casandjian, J. M. (author)
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Cecchi, C. (author)
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Charles, E. (author)
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Chekhtman, A. (author)
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Chiang, J. (author)
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Ciprini, S. (author)
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Claus, R. (author)
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Cohen-Tanugi, J. (author)
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Cutini, S. (author)
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De Palma, F. (author)
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Dermer, C. D. (author)
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Digel, S. W. (author)
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Do Couto E Silva, E. (author)
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Drell, P. S. (author)
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Drlica-Wagner, A. (author)
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Dubois, R. (author)
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Enoto, T. (author)
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Falletti, L. (author)
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Favuzzi, C. (author)
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Fegan, S. J. (author)
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Focke, W. B. (author)
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Fortin, P. (author)
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Fukazawa, Y. (author)
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Funk, S. (author)
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Fusco, P. (author)
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Gargano, F. (author)
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Gehrels, N. (author)
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Germani, S. (author)
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Giglietto, N. (author)
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Giordano, F. (author)
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Giroletti, M. (author)
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Glanzman, T. (author)
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- Godfrey, G. (author)
- Stockholms universitet,Institutionen för astronomi
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Grenier, I. A. (author)
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Grove, J. E. (author)
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Guiriec, S. (author)
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Hadasch, D. (author)
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Hayashida, M. (author)
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Hays, E. (author)
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Hughes, R. E. (author)
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Jóhannesson, G. (author)
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Johnson, A. S. (author)
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Johnson, T. J. (author)
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Kamae, T. (author)
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Katagiri, H. (author)
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Kataoka, J. (author)
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Knödlseder, J. (author)
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Kuss, M. (author)
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Lande, J. (author)
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Latronico, L. (author)
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Lee, S. -H (author)
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Longo, F. (author)
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Loparco, F. (author)
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Lovellette, M. N. (author)
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Lubrano, P. (author)
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Madejski, G. M. (author)
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Mazziotta, M. N. (author)
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McEnery, J. E. (author)
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Michelson, P. F. (author)
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Mizuno, T. (author)
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Moiseev, A. A. (author)
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Monte, C. (author)
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Monzani, M. E. (author)
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Morselli, A. (author)
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Moskalenko, I. V. (author)
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Murgia, S. (author)
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Nakamori, T. (author)
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Naumann-Godo, M. (author)
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Nolan, P. L. (author)
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Norris, J. P. (author)
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Nuss, E. (author)
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Ohsugi, T. (author)
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Okumura, A. (author)
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Omodei, N. (author)
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Orlando, E. (author)
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Ormes, J. F. (author)
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Ozaki, M. (author)
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Paneque, D. (author)
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Panetta, J. H. (author)
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Parent, D. (author)
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Pesce-Rollins, M. (author)
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Pierbattista, M. (author)
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Piron, F. (author)
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Rain, S. (author)
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Rando, R. (author)
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Razzano, M. (author)
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Reimer, A. (author)
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Reimer, O. (author)
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Reposeur, T. (author)
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Ritz, S. (author)
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Rochester, L. S. (author)
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Sgr, C. (author)
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Siskind, E. J. (author)
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Smith, P. D. (author)
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Spandre, G. (author)
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Spinelli, P. (author)
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Suson, D. J. (author)
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Takahashi, H. (author)
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Tanaka, T. (author)
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Thayer, J. G. (author)
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Thayer, J. B. (author)
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Thompson, D. J. (author)
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Tibaldo, L. (author)
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Tosti, G. (author)
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Troja, E. (author)
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Usher, T. L. (author)
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Vandenbroucke, J. (author)
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Vasileiou, V. (author)
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Vianello, G. (author)
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Vilchez, N. (author)
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Vitale, V. (author)
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Waite, A. P. (author)
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Wang, P. (author)
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Winer, B. L. (author)
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Wood, K. S. (author)
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Yang, Z. (author)
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- Zimmer, Stephan (author)
- Stockholms universitet,Fysikum
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Knoedlseder, J. (author)
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(creator_code:org_t)
- Elsevier BV, 2012
- 2012
- English.
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In: Astroparticle physics. - : Elsevier BV. - 0927-6505 .- 1873-2852. ; 35:6, s. 346-353
- Related links:
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https://ntrs.nasa.go...
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show more...
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https://arxiv.org/ab...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- The Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope is a pair-conversion telescope designed to survey the gamma-ray sky from 20 MeV to several hundreds of GeV. In this energy band there are no astronomical sources with sufficiently well known and sharp spectral features to allow an absolute calibration of the LAT energy scale. However, the geomagnetic cutoff in the cosmic ray electron-plus-positron (CRE) spectrum in low Earth orbit does provide such a spectral feature. The energy and spectral shape of this cutoff can be calculated with the aid of a numerical code tracing charged particles in the Earth's magnetic field. By comparing the cutoff value with that measured by the LAT in different geomagnetic positions, we have obtained several calibration points between ∌6 and ∌13 GeV with an estimated uncertainty of ∌2%. An energy calibration with such high accuracy reduces the systematic uncertainty in LAT measurements of, for example, the spectral cutoff in the emission from gamma ray pulsars.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Absolute energy scale
- Cosmic-rays
- Fermi Large Area Telescope
- Geomagnetic cutoff
- Absolute calibration
- Astronomical sources
- Calibration points
- Cut-off value
- Earth's magnetic field
- Energy band
- Energy calibration
- Energy scale
- Large area telescopes
- Low earth orbits
- Numerical code
- Pair-conversion
- Spectral feature
- Spectral shapes
- Systematic uncertainties
- Calibration
- Geomagnetism
- Magnetic fields
- Optical telescopes
- Telescopes
- Uncertainty analysis
- Gamma rays
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Ackermann, M.
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Ajello, M.
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Allafort, A.
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Atwood, W. B.
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Axelsson, Magnus
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Baldini, L.
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show more...
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Barbiellini, G.
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Bastieri, D.
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Bechtol, K.
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Bellazzini, R.
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Berenji, B.
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Bloom, E. D.
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Bonamente, E.
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Borgland, A. W.
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Bouvier, A.
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Bregeon, J.
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Brez, A.
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Brigida, M.
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Bruel, P.
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Buehler, R.
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Buson, S.
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Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Casandjian, J. M ...
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Cecchi, C.
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Charles, E.
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Chekhtman, A.
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Chiang, J.
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Ciprini, S.
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Claus, R.
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Cohen-Tanugi, J.
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Cutini, S.
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De Palma, F.
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Dermer, C. D.
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Digel, S. W.
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Do Couto E Silva ...
-
Drell, P. S.
-
Drlica-Wagner, A ...
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Dubois, R.
-
Enoto, T.
-
Falletti, L.
-
Favuzzi, C.
-
Fegan, S. J.
-
Focke, W. B.
-
Fortin, P.
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Fukazawa, Y.
-
Funk, S.
-
Fusco, P.
-
Gargano, F.
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Gehrels, N.
-
Germani, S.
-
Giglietto, N.
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Giordano, F.
-
Giroletti, M.
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Glanzman, T.
-
Godfrey, G.
-
Grenier, I. A.
-
Grove, J. E.
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Guiriec, S.
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Hadasch, D.
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Hayashida, M.
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Hays, E.
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Hughes, R. E.
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Jóhannesson, G.
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Johnson, A. S.
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Johnson, T. J.
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Kamae, T.
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Katagiri, H.
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Kataoka, J.
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Knödlseder, J.
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Kuss, M.
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Lande, J.
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Latronico, L.
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Lee, S. -H
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Longo, F.
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Loparco, F.
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Lovellette, M. N ...
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Lubrano, P.
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Madejski, G. M.
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Mazziotta, M. N.
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McEnery, J. E.
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Michelson, P. F.
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Mizuno, T.
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Moiseev, A. A.
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Monte, C.
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Monzani, M. E.
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Morselli, A.
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Moskalenko, I. V ...
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Murgia, S.
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Nakamori, T.
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Naumann-Godo, M.
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Nolan, P. L.
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Norris, J. P.
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Nuss, E.
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Ohsugi, T.
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Okumura, A.
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Omodei, N.
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Orlando, E.
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Ormes, J. F.
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Ozaki, M.
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Paneque, D.
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Panetta, J. H.
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Parent, D.
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Pesce-Rollins, M ...
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Pierbattista, M.
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Piron, F.
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Rain, S.
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Rando, R.
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Razzano, M.
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Reimer, A.
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Reimer, O.
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Reposeur, T.
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Ritz, S.
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Rochester, L. S.
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Sgr, C.
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Siskind, E. J.
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Smith, P. D.
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Spandre, G.
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Spinelli, P.
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Suson, D. J.
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Takahashi, H.
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Tanaka, T.
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Thayer, J. G.
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Thayer, J. B.
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Thompson, D. J.
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Tibaldo, L.
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Tosti, G.
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Troja, E.
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Usher, T. L.
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Vandenbroucke, J ...
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Vasileiou, V.
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Vianello, G.
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Vilchez, N.
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Vitale, V.
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Waite, A. P.
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Wang, P.
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Winer, B. L.
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Wood, K. S.
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Yang, Z.
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Zimmer, Stephan
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Knoedlseder, J.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Astroparticle ph ...
- By the university
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Royal Institute of Technology
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Stockholm University