Milagro observations of potential TeV emitters

A. A. Abdo, A. U. Abeysekara, B. T. Allen, T. Aune, A. S. Barber, D. Berley, J. Braun, C. Chen, G. E. Christopher, T. Deyoung, B. L. Dingus, R. W. Ellsworth, M. M. Gonzalez, J. A. Goodman, E. Hays, C. M. Hoffman, P. H. Hüntemeyer, A. Imran, B. E. Kolterman, J. T. LinnemannJ. E. McEnery, T. Morgan, A. I. Mincer, P. Nemethy, J. Pretz, J. M. Ryan, P. M. Saz Parkinson, M. Schneider, A. Shoup, G. Sinnis, A. J. Smith, V. Vasileiou, G. P. Walker, D. A. Williams, G. B. Yodh

    Research output: Contribution to journalArticle

    Abstract

    This paper reports the results from three targeted searches of Milagro TeV sky maps: two extragalactic point source lists and one pulsar source list. The first extragalactic candidate list consists of 709 candidates selected from the Fermi-LAT 2FGL catalog. The second extragalactic candidate list contains 31 candidates selected from the TeVCat source catalog that have been detected by imaging atmospheric Cherenkov telescopes (IACTs). In both extragalactic candidate lists Mkn 421 was the only source detected by Milagro. This paper presents the Milagro TeV flux for Mkn 421 and flux limits for the brighter Fermi-LAT extragalactic sources and for all TeVCat candidates. The pulsar list extends a previously published Milagro targeted search for Galactic sources. With the 32 new gamma-ray pulsars identified in 2FGL, the number of pulsars that are studied by both Fermi-LAT and Milagro is increased to 52. In this sample, we find that the probability of Milagro detecting a TeV emission coincident with a pulsar increases with the GeV flux observed by the Fermi-LAT in the energy range from 0.1 GeV to 100 GeV.

    Original languageEnglish (US)
    Pages (from-to)16-25
    Number of pages10
    JournalAstroparticle Physics
    Volume57-58
    DOIs
    StatePublished - 2014

    Keywords

    • Active galactic nuclei
    • Astroparticle physics
    • Galaxies
    • Gamma-rays
    • Pulsars

    ASJC Scopus subject areas

    • Astronomy and Astrophysics

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  • Cite this

    Abdo, A. A., Abeysekara, A. U., Allen, B. T., Aune, T., Barber, A. S., Berley, D., Braun, J., Chen, C., Christopher, G. E., Deyoung, T., Dingus, B. L., Ellsworth, R. W., Gonzalez, M. M., Goodman, J. A., Hays, E., Hoffman, C. M., Hüntemeyer, P. H., Imran, A., Kolterman, B. E., ... Yodh, G. B. (2014). Milagro observations of potential TeV emitters. Astroparticle Physics, 57-58, 16-25. https://doi.org/10.1016/j.astropartphys.2014.03.001