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The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey

MPS-Authors
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Aharonian,  F.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Ait Benkhali,  Faical
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Bernloehr,  K.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Bordas Coma,  Pol
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Carrigan,  S.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Casanova,  S.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Chakraborty,  Nachiketa
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Chaves,  R. C. G.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Deil,  C.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Domainko,  W
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Donath,  Axel
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Edwards,  Tanya
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Eger,  Peter
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Gast,  H.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Hahn,  Joachim
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Hermann,  German
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Hinton,  J. A.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Hofmann,  W.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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King,  J.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Liu,  Ruoyu
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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López-Coto,  R-
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Marandon,  Vincent
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Marx,  Ramin
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Mitchell,  Alison
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Panter,  M.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Parsons,  R. D.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Poon,  Helen
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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de los Reyes,  R.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Rieger,  F.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Tibaldo,  L.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Tuffs,  R.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Voelk,  H. J.
Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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White,  R.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Yang,  Ruizhi
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Zanin,  R.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Zorn,  J.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Fulltext (public)

1702.08280
(Preprint), 2MB

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Citation

Collaboration, H. E. S. S., Abdalla, H., Abramowski, A., Aharonian, F., Ait Benkhali, F., Angüner, E., et al. (2018). The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey. Astronomy and Astrophysics, 612(Special Issue): A2. doi:10.1051/0004-6361/201629377.


Cite as: http://hdl.handle.net/21.11116/0000-0002-4530-A
Abstract
The nine-year H.E.S.S. Galactic Plane Survey (HGPS) has yielded the most uniform observation scan of the inner Milky Way in the TeV gamma-ray band to date. The sky maps and source catalogue of the HGPS allow for a systematic study of the population of TeV pulsar wind nebulae found throughout the last decade. To investigate the nature and evolution of pulsar wind nebulae, for the first time we also present several upper limits for regions around pulsars without a detected TeV wind nebula. Our data exhibit a correlation of TeV surface brightness with pulsar spin-down power Ė. This seems to be caused both by an increase of extension with decreasing Ė, and hence with time, compatible with a power law RPWN(Ė) ~Ė−0.65±0.20, and by a mild decrease of TeV gamma-ray luminosity with decreasing Ė, compatible with L1−10 TeV ~Ė0.59±0.21. We also find that the offsets of pulsars with respect to the wind nebula centre with ages around 10 kyr are frequently larger than can be plausibly explained by pulsar proper motion and could be due to an asymmetric environment. In the present data, it seems that a large pulsar offset is correlated with a high apparent TeV efficiency L1−10 TeV∕Ė. In addition to 14 HGPS sources considered firmly identified pulsar wind nebulae and 5 additional pulsar wind nebulae taken from literature, we find 10 HGPS sources that are likely TeV pulsar wind nebula candidates. Using a model that subsumes the present common understanding of the very high-energy radiative evolution of pulsar wind nebulae, we find that the trends and variations of the TeV observables and limits can be reproduced to a good level, drawing a consistent picture of present-day TeV data and theory.