Aartsen MGAckermann MAdams JAguilar JAAhlers MAhrens MSamarai IAAltmann DAndeen KAnderson TAnsseau IAnton GArgüelles CAuffenberg JAxani SBagherpour HBai XBarron JPBarwick SWBaum VBay RBeatty JJTjus JBBecker KHBenzvi SBerley DBernardini EBesson DZBinder GBindig DBlaufuss EBlot SBohm CBörner MBos FBose DBöser SBotner OBourbeau JBradascio FBraun JBrayeur LBrenzke MBretz HPBron SBurgman ACarver TCasey JCasier MCheung EChirkin DChristov AClark KClassen LCoenders SCollin GHConrad JMCowen DFCross RDay MAndré JPAMDClercq CDDelaunay JJDembinski HRidder SDDesiati PVries KDDWasseige GDWith MDDeyoung TDaz-Vélez JCLorenzo VDDujmovic HDumm JPDunkman MEberhardt BEhrhardt TEichmann BEller PEvenson PAFahey SFazely ARFelde JFilimonov KFinley CFlis SFranckowiak AFriedman EFuchs TGaisser TKGallagher JGerhardt LGhorbani KGiang WGlauch TGlüsenkamp T2018-05-222018-05-222017IceCube Collaboration (2017). Constraints on galactic neutrino emission with seven years of IceCube data. arXiv:1707.034160004-637X1538-4357http://hdl.handle.net/10092/15413© 2017. The American Astronomical Society. All rights reserved. The origins of high-energy astrophysical neutrinos remain a mystery despite extensive searches for their sources. We present constraints from seven years of IceCube Neutrino Observatory muon data on the neutrino flux coming from the Galactic plane. This flux is expected from cosmic-ray interactions with the interstellar medium or near localized sources. Two methods were developed to test for a spatially extended flux from the entire plane, both of which are maximum likelihood fits but with different signal and background modeling techniques. We consider three templates for Galactic neutrino emission based primarily on gamma-ray observations and models that cover a wide range of possibilities. Based on these templates and in the benchmark case of an unbroken E -2.5 power-law energy spectrum, we set 90% confidence level upper limits, constraining the possible Galactic contribution to the diffuse neutrino flux to be relatively small, less than 14% of the flux reported in Aartsen et al. above 1 TeV. A stacking method is also used to test catalogs of known high-energy Galactic gamma-ray sources.engamma rays: ISMneutrinosgamma raysGalactic planeJournal Article2018-01-04Field of Research::02 - Physical Sciences::0201 - Astronomical and Space Sciences::020106 - High Energy Astrophysics; Cosmic RaysFields of Research::51 - Physical sciences::5107 - Particle and high energy physics::510703 - Particle physicshttps://doi.org/10.3847/1538-4357/aa8dfb