The Circinus Galaxy Revisited with 10 yr Fermi-LAT Data
نویسندگان
چکیده
منابع مشابه
Search for Gamma-ray Emission from Des Dwarf Spheroidal Galaxy Candidates with Fermi-lat Data
Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of t...
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D. Paneque Max Planck Institute for Physics, Munich, 80805, Germany J. Ballet Laboratoire AIM, CEA-IRFU/CNRS/Université Paris Diderot, Service d’Astrophysique, CEA Saclay, 91191 Gifsur Yvette, France T. Burnett Department of Physics, University of Washington, Seattle, WA 98195-1560, USA S. Digel SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA P. Fortin Fred Lawrence Whipple Obs...
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Building on our previous cross-correlation analysis (Xia et al. 2011) between the isotropic γ-ray background (IGRB) and different tracers of the large-scale structure of the universe, we update our results using 60 months of data from the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (Fermi). We perform a cross-correlation analysis both in configuration and spherical h...
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High quality 4500–6800 Å spectropolarimetric observations of the Circinus galaxy are reported. These show polarized and relatively broad (FWHM∼3300 km/s) Hα (as well as marginal Hβ) arising from a <3′′ (<60 pc) region centered on the nucleus and coincident with the the peak of the narrow line region. Broad Hα might also be present ∼8′′ (160 pc) SE from the nucleus and close to the dust lane, bu...
متن کاملExtending the Fermi-LAT Data Processing Pipeline to the Grid
The Data Handling Pipeline (”Pipeline”) has been developed for the Fermi Gamma-Ray Space Telescope (Fermi) Large Area Telescope (LAT) which launched in June 2008. Since then it has been in use to completely automate the production of data quality monitoring quantities, reconstruction and routine analysis of all data received from the satellite and to deliver science products to the collaboratio...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2019
ISSN: 1538-4357
DOI: 10.3847/1538-4357/ab44ba