Matches in SemOpenAlex for { <https://semopenalex.org/work/W3216668880> ?p ?o ?g. }
- W3216668880 endingPage "5640" @default.
- W3216668880 startingPage "5636" @default.
- W3216668880 abstract "Einstein's General Relativity (GR) is the basis of modern astronomy and astrophysics. Testing the validity of basic assumptions of GR is important. In this work, we test a possible violation of the Weak Equivalence Principle (WEP), i.e., there might be a time-lag between photons of different frequencies caused by the effect of gravitational fields if the speeds of photons are slightly different at different frequencies. We use Fast Radio Bursts (FRBs) , which are astronomical transients with millisecond timescales detected in the radio frequency range. Being at cosmological distances, accumulated time delay of FRBs can be caused by the plasma in between an FRB source and an observer, and by gravitational fields in the path of the signal. We segregate the delay due to dispersion and gravitational field using the post-Newtonian formalism (PPN) parameter $Delta gamma$, which defines the space-curvature due to gravity by a unit test mass. We did not detect any time-delay from FRBs but obtained tight constraints on the upper limit of $Delta gamma$. For FRB20181117C with $z = 1.83 pm 0.28$ and $nu_{obs}$ = $676.5,{rm MHz}$, the best possible constraint is obtained at log($Delta gamma$) = $-21.58 ^{+0.10}_{-0.12}$ and log($Delta gamma$/$r_{rm E}$) = $-21.75 ^{+0.10}_{-0.14}$, respectively, where $r_{rm E}$ is the energy ratio of two photons of the same FRB signal. This constraint is about one order of magnitude better than the previous constraint obtained with FRBs, and five orders tighter than any constraint obtained using other cosmological sources." @default.
- W3216668880 created "2021-12-06" @default.
- W3216668880 creator A5002922209 @default.
- W3216668880 creator A5003727453 @default.
- W3216668880 creator A5012483145 @default.
- W3216668880 creator A5028289294 @default.
- W3216668880 creator A5033783297 @default.
- W3216668880 creator A5048296706 @default.
- W3216668880 creator A5050485401 @default.
- W3216668880 creator A5054509078 @default.
- W3216668880 creator A5067253876 @default.
- W3216668880 creator A5088564827 @default.
- W3216668880 date "2021-11-23" @default.
- W3216668880 modified "2023-10-11" @default.
- W3216668880 title "Constraining violations of the weak equivalence principle Using CHIME FRBs" @default.
- W3216668880 cites W1967094474 @default.
- W3216668880 cites W1970590942 @default.
- W3216668880 cites W2027853886 @default.
- W3216668880 cites W2062656295 @default.
- W3216668880 cites W2076494303 @default.
- W3216668880 cites W2121795427 @default.
- W3216668880 cites W2139937287 @default.
- W3216668880 cites W2166436681 @default.
- W3216668880 cites W2201489770 @default.
- W3216668880 cites W2273892807 @default.
- W3216668880 cites W2956029465 @default.
- W3216668880 cites W2966245896 @default.
- W3216668880 cites W2973189566 @default.
- W3216668880 cites W2995496125 @default.
- W3216668880 cites W3013640003 @default.
- W3216668880 cites W3014188352 @default.
- W3216668880 cites W3018580401 @default.
- W3216668880 cites W3030414242 @default.
- W3216668880 cites W3080642409 @default.
- W3216668880 cites W3094691047 @default.
- W3216668880 cites W3099730706 @default.
- W3216668880 cites W3100513703 @default.
- W3216668880 cites W3100514957 @default.
- W3216668880 cites W3101400699 @default.
- W3216668880 cites W3101791280 @default.
- W3216668880 cites W3104025957 @default.
- W3216668880 cites W3104758626 @default.
- W3216668880 cites W3104765890 @default.
- W3216668880 cites W3105469380 @default.
- W3216668880 cites W3123699269 @default.
- W3216668880 cites W3140651708 @default.
- W3216668880 cites W3174004414 @default.
- W3216668880 cites W3188887255 @default.
- W3216668880 cites W4246028735 @default.
- W3216668880 cites W4292875581 @default.
- W3216668880 doi "https://doi.org/10.1093/mnras/stab3344" @default.
- W3216668880 hasPublicationYear "2021" @default.
- W3216668880 type Work @default.
- W3216668880 sameAs 3216668880 @default.
- W3216668880 citedByCount "2" @default.
- W3216668880 countsByYear W32166688802023 @default.
- W3216668880 crossrefType "journal-article" @default.
- W3216668880 hasAuthorship W3216668880A5002922209 @default.
- W3216668880 hasAuthorship W3216668880A5003727453 @default.
- W3216668880 hasAuthorship W3216668880A5012483145 @default.
- W3216668880 hasAuthorship W3216668880A5028289294 @default.
- W3216668880 hasAuthorship W3216668880A5033783297 @default.
- W3216668880 hasAuthorship W3216668880A5048296706 @default.
- W3216668880 hasAuthorship W3216668880A5050485401 @default.
- W3216668880 hasAuthorship W3216668880A5054509078 @default.
- W3216668880 hasAuthorship W3216668880A5067253876 @default.
- W3216668880 hasAuthorship W3216668880A5088564827 @default.
- W3216668880 hasBestOaLocation W32166688802 @default.
- W3216668880 hasConcept C121332964 @default.
- W3216668880 hasConcept C124017977 @default.
- W3216668880 hasConcept C14257148 @default.
- W3216668880 hasConcept C147452769 @default.
- W3216668880 hasConcept C159317903 @default.
- W3216668880 hasConcept C17599544 @default.
- W3216668880 hasConcept C190330329 @default.
- W3216668880 hasConcept C37914503 @default.
- W3216668880 hasConcept C44870925 @default.
- W3216668880 hasConcept C62520636 @default.
- W3216668880 hasConceptScore W3216668880C121332964 @default.
- W3216668880 hasConceptScore W3216668880C124017977 @default.
- W3216668880 hasConceptScore W3216668880C14257148 @default.
- W3216668880 hasConceptScore W3216668880C147452769 @default.
- W3216668880 hasConceptScore W3216668880C159317903 @default.
- W3216668880 hasConceptScore W3216668880C17599544 @default.
- W3216668880 hasConceptScore W3216668880C190330329 @default.
- W3216668880 hasConceptScore W3216668880C37914503 @default.
- W3216668880 hasConceptScore W3216668880C44870925 @default.
- W3216668880 hasConceptScore W3216668880C62520636 @default.
- W3216668880 hasFunder F4320306101 @default.
- W3216668880 hasFunder F4320322795 @default.
- W3216668880 hasFunder F4320323092 @default.
- W3216668880 hasIssue "4" @default.
- W3216668880 hasLocation W32166688801 @default.
- W3216668880 hasLocation W32166688802 @default.
- W3216668880 hasOpenAccess W3216668880 @default.
- W3216668880 hasPrimaryLocation W32166688801 @default.
- W3216668880 hasRelatedWork W1597565980 @default.
- W3216668880 hasRelatedWork W1967975361 @default.