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@ARTICLE{BurgerScheidlin:598360,
      author       = {Burger-Scheidlin, Christopher and Brose, Robert and Mackey,
                      Jonathan and Filipovic, Miroslav D. and Goswami, Pranjupriya
                      and Guillen, Enrique Mestre and de Oña Wilhelmi, Emma and
                      Sushch, Iurii},
      title        = {{G}amma-ray detection of newly discovered {A}ncora {SNR}:
                      {G}288.8-6.3},
      reportid     = {PUBDB-2023-06788, arXiv:2310.14431},
      year         = {2023},
      note         = {11 pages, 6 figures},
      abstract     = {The supernova remnant (SNR) G288.8-6.3 was recently
                      discovered as a faint radio shell at large Galactic latitude
                      using observations with ASKAP in the EMU survey. Here, we
                      make the first detailed investigation of the $\gamma$-ray
                      emission from the G288.8-6.3 region, aiming to characterise
                      the high-energy emission in the GeV regime from the newly
                      discovered SNR, dubbed Ancora. 15 years of Fermi-Large Area
                      Telescope (LAT) data were analysed at energies between 400
                      MeV and 1 TeV and the excess seen in the region was modelled
                      using different spatial and spectral models. We detect
                      spatially extended $\gamma$-ray emission coinciding with the
                      radio SNR, with detection significance up to 8.8 $\sigma$. A
                      radial disk spatial model in combination with a power-law
                      spectral model with an energy flux of $(4.80 \pm 0.91)
                      \times 10^{-6}$$\text{MeV}$$\text{cm}^{-2}$$\text{s}^{-1}$,
                      with the spectrum extending up to around 5 GeV was found to
                      be the preferred model. Morphologically, hotspots seen above
                      1 GeV are well-correlated with the bright western part of
                      the radio shell. The emission is more likely to be of
                      leptonic origin given the estimated gas density in the
                      region and the estimated distance and age of the SNR, but a
                      hadronic scenario cannot be ruled out. Ancora is the eighth
                      SNR detected at high Galactic latitude with Fermi-LAT. This
                      new population of remnants has the potential to constrain
                      the physics of particle diffusion and escape from SNRs into
                      the Galaxy.},
      cin          = {$Z_THAT$ / ZEU-HESS},
      cid          = {$I:(DE-H253)Z_THAT-20210408$ /
                      I:(DE-H253)ZEU-HESS-20140213},
      pnm          = {613 - Matter and Radiation from the Universe (POF4-613)},
      pid          = {G:(DE-HGF)POF4-613},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2310.14431},
      howpublished = {arXiv:2310.14431},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2310.14431;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/598360},
}