FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2097577837> ?p ?o ?g. }

• W2097577837 abstract "The Fermi-LAT collaboration has studied the gamma-ray emission from a stacked population of dwarf spheroidal galaxies and used this information to set constraints on the dark matter annihilation cross section. Interestingly, their analysis uncovered an excess with a test statistic (TS) of 8.7. If interpreted naively, this constitutes a 2.95 sigma local excess (p-value=0.003), relative to the expectations of their background model. In order to further test this interpretation, the Fermi-LAT team studied a large number of blank sky locations and found TS>8.7 excesses to be more common than predicted by their background model, decreasing the significance of their dwarf excess to 2.2 sigma (p-value=0.027). We argue that these TS>8.7 blank sky locations are largely the result of unresolved blazars, radio galaxies, and starforming galaxies, and show that multi-wavelength information can be used to reduce the degree to which such sources contaminate the otherwise blank sky. In particular, we show that masking regions of the sky that lie within 1 degree of sources contained in the BZCAT or CRATES catalogs reduces the fraction of blank sky locations with TS>8.7 by more than a factor of two. Taking such multi-wavelength information into account can enable experiments such as Fermi to better characterize their backgrounds and increase their sensitivity to dark matter in dwarf galaxies, the most important of which remain largely uncontaminated by unresolved point sources. We also note that for the range of dark matter masses and annihilation cross sections currently being tested by studies of dwarf spheroidal galaxies, simulations predict that Fermi should be able to detect a significant number of dark matter subhalos. These subhalos constitute a population of sub-threshold gamma-ray point sources and represent an irreducible background for searches for dark matter annihilation in dwarf galaxies." @default.
• W2097577837 created "2016-06-24" @default.
• W2097577837 creator A5006530798 @default.
• W2097577837 creator A5018508424 @default.
• W2097577837 creator A5058056387 @default.
• W2097577837 date "2015-03-02" @default.
• W2097577837 modified "2023-09-25" @default.
• W2097577837 title "Improving the sensitivity of gamma-ray telescopes to dark matter annihilation in dwarf spheroidal galaxies" @default.
• W2097577837 cites W1553693172 @default.
• W2097577837 cites W1932016673 @default.
• W2097577837 cites W1963600859 @default.
• W2097577837 cites W1964127564 @default.
• W2097577837 cites W1976855200 @default.
• W2097577837 cites W1989174422 @default.
• W2097577837 cites W2006966485 @default.
• W2097577837 cites W2016527243 @default.
• W2097577837 cites W2026025077 @default.
• W2097577837 cites W2039547173 @default.
• W2097577837 cites W2052853064 @default.
• W2097577837 cites W2063670380 @default.
• W2097577837 cites W2071524227 @default.
• W2097577837 cites W2071587586 @default.
• W2097577837 cites W2112180325 @default.
• W2097577837 cites W2112456186 @default.
• W2097577837 cites W2113112035 @default.
• W2097577837 cites W2119156667 @default.
• W2097577837 cites W2122469395 @default.
• W2097577837 cites W2123923727 @default.
• W2097577837 cites W2132980109 @default.
• W2097577837 cites W2135403967 @default.
• W2097577837 cites W2142749231 @default.
• W2097577837 cites W2146049705 @default.
• W2097577837 cites W2152075541 @default.
• W2097577837 cites W2156437983 @default.
• W2097577837 cites W2156497844 @default.
• W2097577837 cites W2162853691 @default.
• W2097577837 cites W2163097950 @default.
• W2097577837 cites W2166897975 @default.
• W2097577837 cites W2167277890 @default.
• W2097577837 cites W2168628790 @default.
• W2097577837 cites W2963660918 @default.
• W2097577837 cites W3098187590 @default.
• W2097577837 cites W3099312268 @default.
• W2097577837 cites W3101407495 @default.
• W2097577837 doi "https://doi.org/10.1103/physrevd.91.061302" @default.
• W2097577837 hasPublicationYear "2015" @default.
• W2097577837 type Work @default.
• W2097577837 sameAs 2097577837 @default.
• W2097577837 citedByCount "13" @default.
• W2097577837 countsByYear W20975778372015 @default.
• W2097577837 countsByYear W20975778372016 @default.
• W2097577837 countsByYear W20975778372017 @default.
• W2097577837 countsByYear W20975778372019 @default.
• W2097577837 countsByYear W20975778372020 @default.
• W2097577837 crossrefType "journal-article" @default.
• W2097577837 hasAuthorship W2097577837A5006530798 @default.
• W2097577837 hasAuthorship W2097577837A5018508424 @default.
• W2097577837 hasAuthorship W2097577837A5058056387 @default.
• W2097577837 hasBestOaLocation W20975778371 @default.
• W2097577837 hasConcept C100752510 @default.
• W2097577837 hasConcept C113789861 @default.
• W2097577837 hasConcept C121332964 @default.
• W2097577837 hasConcept C1276947 @default.
• W2097577837 hasConcept C159249277 @default.
• W2097577837 hasConcept C22540661 @default.
• W2097577837 hasConcept C37119246 @default.
• W2097577837 hasConcept C438757 @default.
• W2097577837 hasConcept C44870925 @default.
• W2097577837 hasConcept C73329638 @default.
• W2097577837 hasConcept C7910260 @default.
• W2097577837 hasConcept C98444146 @default.
• W2097577837 hasConceptScore W2097577837C100752510 @default.
• W2097577837 hasConceptScore W2097577837C113789861 @default.
• W2097577837 hasConceptScore W2097577837C121332964 @default.
• W2097577837 hasConceptScore W2097577837C1276947 @default.
• W2097577837 hasConceptScore W2097577837C159249277 @default.
• W2097577837 hasConceptScore W2097577837C22540661 @default.
• W2097577837 hasConceptScore W2097577837C37119246 @default.
• W2097577837 hasConceptScore W2097577837C438757 @default.
• W2097577837 hasConceptScore W2097577837C44870925 @default.
• W2097577837 hasConceptScore W2097577837C73329638 @default.
• W2097577837 hasConceptScore W2097577837C7910260 @default.
• W2097577837 hasConceptScore W2097577837C98444146 @default.
• W2097577837 hasFunder F4320306101 @default.
• W2097577837 hasIssue "6" @default.
• W2097577837 hasLocation W20975778371 @default.
• W2097577837 hasLocation W20975778372 @default.
• W2097577837 hasOpenAccess W2097577837 @default.
• W2097577837 hasPrimaryLocation W20975778371 @default.
• W2097577837 hasRelatedWork W1966786954 @default.
• W2097577837 hasRelatedWork W2146471597 @default.
• W2097577837 hasRelatedWork W2888736952 @default.
• W2097577837 hasRelatedWork W2970660129 @default.
• W2097577837 hasRelatedWork W3036284923 @default.
• W2097577837 hasRelatedWork W3099832158 @default.
• W2097577837 hasRelatedWork W3104258828 @default.
• W2097577837 hasRelatedWork W3163558366 @default.
• W2097577837 hasRelatedWork W4288252276 @default.
• W2097577837 hasRelatedWork W4324046858 @default.
• W2097577837 hasVolume "91" @default.

• next