Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. These limits significantly constrain predictions of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region. © 2017. The American Astronomical Society. All rights reserved.

A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory / Aab, A., Abreu, P., Aglietta, M., Samarai, I.A., Albuquerque, I.F.M., Allekotte, I., Almela, A., Castillo, J.A., Alvarez Muñiz, J., Anastasi, G.A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Avila, G., et al.. - 837:2(2017), p. L25. [10.3847/2041-8213/aa61a5]

A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory

COLALILLO, ROBERTA;GUARINO, FAUSTO;VALORE, LAURA;
2017

Abstract

Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. These limits significantly constrain predictions of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region. © 2017. The American Astronomical Society. All rights reserved.
2017
A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory / Aab, A., Abreu, P., Aglietta, M., Samarai, I.A., Albuquerque, I.F.M., Allekotte, I., Almela, A., Castillo, J.A., Alvarez Muñiz, J., Anastasi, G.A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Avila, G., et al.. - 837:2(2017), p. L25. [10.3847/2041-8213/aa61a5]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/678988
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 26
  • ???jsp.display-item.citation.isi??? 24
social impact