Pulsars are rapidly spinning, highly magnetized neutron stars, created in the gravitational collapse of massive stars. We report the detection of pulsed giga-electron volt gamma rays from the young pulsar PSR J0540-6919 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This is the first gamma-ray pulsar detected in another galaxy. It has the most luminous pulsed gamma-ray emission yet observed, exceeding the Crab pulsar's by a factor of 20. PSR J0540-6919 presents an extreme test case for understanding the structure and evolution of neutron star magnetospheres.

Gamma-ray astronomy: An extremely bright gamma-ray pulsar in the Large Magellanic Cloud / Ackermann, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Barbieri, C., Bastieri, D., Bellazzini, R., Bissaldi, E., Bonino, R., Bottacini, E., Brandt, T.J., Bregeon, J., Bruel, P., Buehler, R., Caliandro, G.A., Cameron, R.A., Caraveo, P.A., Cecchi, C., Charles, E., et al.. - In: SCIENCE. - ISSN 0036-8075. - 350:6262(2015), pp. 801-805. [10.1126/science.aac7400]

Gamma-ray astronomy: An extremely bright gamma-ray pulsar in the Large Magellanic Cloud

BISSALDI, Elisabetta;FAVUZZI, Cecilia;GIGLIETTO, Nicola;
2015

Abstract

Pulsars are rapidly spinning, highly magnetized neutron stars, created in the gravitational collapse of massive stars. We report the detection of pulsed giga-electron volt gamma rays from the young pulsar PSR J0540-6919 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This is the first gamma-ray pulsar detected in another galaxy. It has the most luminous pulsed gamma-ray emission yet observed, exceeding the Crab pulsar's by a factor of 20. PSR J0540-6919 presents an extreme test case for understanding the structure and evolution of neutron star magnetospheres.
2015
http://www.sciencemag.org/content/350/6262/801.full.pdf
Gamma-ray astronomy: An extremely bright gamma-ray pulsar in the Large Magellanic Cloud / Ackermann, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Barbieri, C., Bastieri, D., Bellazzini, R., Bissaldi, E., Bonino, R., Bottacini, E., Brandt, T.J., Bregeon, J., Bruel, P., Buehler, R., Caliandro, G.A., Cameron, R.A., Caraveo, P.A., Cecchi, C., Charles, E., et al.. - In: SCIENCE. - ISSN 0036-8075. - 350:6262(2015), pp. 801-805. [10.1126/science.aac7400]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/87777
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