Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000438322> ?p ?o ?g. }
- W2000438322 endingPage "L12" @default.
- W2000438322 startingPage "L12" @default.
- W2000438322 abstract "We report deep Green Bank Telescope (GBT) spectroscopy in the redshifted NH$_3$~(1,1), CS~1-0 and H$_2$CO~0$_{rm 00}$-1$_{rm 01}$ lines from the $z sim 0.685$ absorber towards B0218+357. The inversion (NH$_3$) and rotational (CS, H$_2$CO) line frequencies have different dependences on the proton-electron mass ratio $mu$, implying that a comparison between the line redshifts is sensitive to changes in $mu$. A joint 3-component fit to the NH$_3$, CS, and H$_2$CO lines yields $[Delta mu/mu] = (-3.5 pm 1.2) times 10^{-7}$, from $z sim 0.685$ to today, where the error includes systematic effects from comparing lines from different species and possible frequency-dependent source morphology. Two additional sources of systematic error remain, due to time variability in the source morphology and velocity offsets between nitrogen-bearing and carbon-bearing species. We find no statistically-significant ($ge 3 sigma$) evidence for changes in $mu$, and obtain the stringent $3sigma$ constraint, $[Delta mu/mu] < 3.6 times 10^{-7}$, over 6.2~Gyrs; this is the best present limit on temporal changes in $mu$ from any technique, and for any lookback time, by a factor $gtrsim 5$." @default.
- W2000438322 created "2016-06-24" @default.
- W2000438322 creator A5087599913 @default.
- W2000438322 date "2011-01-19" @default.
- W2000438322 modified "2023-09-29" @default.
- W2000438322 title "CONSTRAINING CHANGES IN THE PROTON-ELECTRON MASS RATIO WITH INVERSION AND ROTATIONAL LINES" @default.
- W2000438322 cites W1532239545 @default.
- W2000438322 cites W1552953233 @default.
- W2000438322 cites W1965889835 @default.
- W2000438322 cites W1967690828 @default.
- W2000438322 cites W1975897009 @default.
- W2000438322 cites W1981138880 @default.
- W2000438322 cites W1988840633 @default.
- W2000438322 cites W1991629093 @default.
- W2000438322 cites W1997269293 @default.
- W2000438322 cites W1999274394 @default.
- W2000438322 cites W2003668904 @default.
- W2000438322 cites W2023943290 @default.
- W2000438322 cites W2036718233 @default.
- W2000438322 cites W2066762197 @default.
- W2000438322 cites W2071917435 @default.
- W2000438322 cites W2085487470 @default.
- W2000438322 cites W2102192248 @default.
- W2000438322 cites W2102362016 @default.
- W2000438322 cites W2104123845 @default.
- W2000438322 cites W2107276399 @default.
- W2000438322 cites W2110437504 @default.
- W2000438322 cites W2117035721 @default.
- W2000438322 cites W2121493775 @default.
- W2000438322 cites W2134156991 @default.
- W2000438322 cites W2141607861 @default.
- W2000438322 cites W2142729710 @default.
- W2000438322 cites W2152917971 @default.
- W2000438322 cites W2153130534 @default.
- W2000438322 cites W2159264410 @default.
- W2000438322 cites W2165536801 @default.
- W2000438322 cites W2166996816 @default.
- W2000438322 cites W2169479018 @default.
- W2000438322 cites W2595559722 @default.
- W2000438322 cites W3042292836 @default.
- W2000438322 cites W3101765634 @default.
- W2000438322 cites W3102259014 @default.
- W2000438322 cites W3102693597 @default.
- W2000438322 cites W3104224030 @default.
- W2000438322 cites W4238241367 @default.
- W2000438322 doi "https://doi.org/10.1088/2041-8205/728/1/l12" @default.
- W2000438322 hasPublicationYear "2011" @default.
- W2000438322 type Work @default.
- W2000438322 sameAs 2000438322 @default.
- W2000438322 citedByCount "83" @default.
- W2000438322 countsByYear W20004383222012 @default.
- W2000438322 countsByYear W20004383222013 @default.
- W2000438322 countsByYear W20004383222014 @default.
- W2000438322 countsByYear W20004383222015 @default.
- W2000438322 countsByYear W20004383222016 @default.
- W2000438322 countsByYear W20004383222017 @default.
- W2000438322 countsByYear W20004383222018 @default.
- W2000438322 countsByYear W20004383222019 @default.
- W2000438322 countsByYear W20004383222020 @default.
- W2000438322 countsByYear W20004383222021 @default.
- W2000438322 countsByYear W20004383222023 @default.
- W2000438322 crossrefType "journal-article" @default.
- W2000438322 hasAuthorship W2000438322A5087599913 @default.
- W2000438322 hasBestOaLocation W20004383221 @default.
- W2000438322 hasConcept C100253034 @default.
- W2000438322 hasConcept C105795698 @default.
- W2000438322 hasConcept C113196181 @default.
- W2000438322 hasConcept C121332964 @default.
- W2000438322 hasConcept C147120987 @default.
- W2000438322 hasConcept C184779094 @default.
- W2000438322 hasConcept C185544564 @default.
- W2000438322 hasConcept C185592680 @default.
- W2000438322 hasConcept C188232333 @default.
- W2000438322 hasConcept C198352243 @default.
- W2000438322 hasConcept C2524010 @default.
- W2000438322 hasConcept C2780703968 @default.
- W2000438322 hasConcept C33024259 @default.
- W2000438322 hasConcept C33923547 @default.
- W2000438322 hasConcept C43617362 @default.
- W2000438322 hasConcept C44870925 @default.
- W2000438322 hasConcept C98444146 @default.
- W2000438322 hasConceptScore W2000438322C100253034 @default.
- W2000438322 hasConceptScore W2000438322C105795698 @default.
- W2000438322 hasConceptScore W2000438322C113196181 @default.
- W2000438322 hasConceptScore W2000438322C121332964 @default.
- W2000438322 hasConceptScore W2000438322C147120987 @default.
- W2000438322 hasConceptScore W2000438322C184779094 @default.
- W2000438322 hasConceptScore W2000438322C185544564 @default.
- W2000438322 hasConceptScore W2000438322C185592680 @default.
- W2000438322 hasConceptScore W2000438322C188232333 @default.
- W2000438322 hasConceptScore W2000438322C198352243 @default.
- W2000438322 hasConceptScore W2000438322C2524010 @default.
- W2000438322 hasConceptScore W2000438322C2780703968 @default.
- W2000438322 hasConceptScore W2000438322C33024259 @default.
- W2000438322 hasConceptScore W2000438322C33923547 @default.
- W2000438322 hasConceptScore W2000438322C43617362 @default.
- W2000438322 hasConceptScore W2000438322C44870925 @default.
- W2000438322 hasConceptScore W2000438322C98444146 @default.