Matches in SemOpenAlex for { <https://semopenalex.org/work/W3082384166> ?p ?o ?g. }
- W3082384166 endingPage "4412" @default.
- W3082384166 startingPage "4389" @default.
- W3082384166 abstract "We characterise the thermal state of the intergalactic medium (IGM) in ten redshift bins in the redshift range $2 leq z leq 4$ with a sample of 103 high resolution, high S/N Ly$alpha$ forest spectra using four different flux distribution statistics. Our measurements are calibrated with mock spectra from a large suite of hydrodynamical simulations post-processed with our thermal IGM evolution code CITE, finely sampling amplitude and slope of the expected temperature-density relation. The thermal parameters inferred from our measurements of the flux power spectrum, Doppler parameter distribution, as well as wavelet and curvature statistics agree well within their respective errors and all clearly show the peak in temperature and minimum in slope of the temperature density relation expected from HeII reionization. Combining our measurements from the different flux statistics gives $T_0=(14750 pm 1322)$K for the peak temperature at mean density and a corresponding minimum slope $gamma = 1.225 pm 0.120$. The peak in the temperature evolution occurs at $z approx 3$, in agreement with previous measurements that had suggested the presence of such a peak, albeit with a large scatter. Using CITE, we also calculate the thermal state of the IGM predicted by five widely used (spatially homogeneous) UV-background models. The rather rapid thermal evolution inferred by our measurements is well reproduced by two of the models, if we assume (physically well motivated) non-equilibrium evolution with photo-heating rates that are reduced by a moderate factor of $sim 0.7-0.8$. The other three models predict HeII reionization to be more extended with a somewhat earlier as well as higher temperature peak than our measurements suggest." @default.
- W3082384166 created "2020-09-08" @default.
- W3082384166 creator A5005658594 @default.
- W3082384166 creator A5013460061 @default.
- W3082384166 creator A5025154308 @default.
- W3082384166 creator A5046966092 @default.
- W3082384166 date "2021-07-16" @default.
- W3082384166 modified "2023-10-17" @default.
- W3082384166 title "A consistent and robust measurement of the thermal state of the IGM at 2 ≤ <i>z</i> ≤ 4 from a large sample of Ly <i>α</i> forest spectra: evidence for late and rapid He <scp>ii</scp> reionization" @default.
- W3082384166 cites W1534059466 @default.
- W3082384166 cites W1758846240 @default.
- W3082384166 cites W1802566054 @default.
- W3082384166 cites W1845642430 @default.
- W3082384166 cites W1848567999 @default.
- W3082384166 cites W1902574424 @default.
- W3082384166 cites W1919170971 @default.
- W3082384166 cites W1966022526 @default.
- W3082384166 cites W1966671643 @default.
- W3082384166 cites W1974997409 @default.
- W3082384166 cites W1981534915 @default.
- W3082384166 cites W1984797436 @default.
- W3082384166 cites W1985198043 @default.
- W3082384166 cites W1996693375 @default.
- W3082384166 cites W1997828988 @default.
- W3082384166 cites W2002543548 @default.
- W3082384166 cites W2003473618 @default.
- W3082384166 cites W2008697262 @default.
- W3082384166 cites W2012185970 @default.
- W3082384166 cites W2012498678 @default.
- W3082384166 cites W2015787231 @default.
- W3082384166 cites W2023122552 @default.
- W3082384166 cites W2028128290 @default.
- W3082384166 cites W2029248679 @default.
- W3082384166 cites W2042384774 @default.
- W3082384166 cites W2042749826 @default.
- W3082384166 cites W2044089420 @default.
- W3082384166 cites W2074207509 @default.
- W3082384166 cites W2074255988 @default.
- W3082384166 cites W2082272563 @default.
- W3082384166 cites W2083801159 @default.
- W3082384166 cites W2085745687 @default.
- W3082384166 cites W2087059614 @default.
- W3082384166 cites W2088094486 @default.
- W3082384166 cites W2092618688 @default.
- W3082384166 cites W2099681644 @default.
- W3082384166 cites W2101506386 @default.
- W3082384166 cites W2103453948 @default.
- W3082384166 cites W2106758945 @default.
- W3082384166 cites W2122760489 @default.
- W3082384166 cites W2130992240 @default.
- W3082384166 cites W2139937287 @default.
- W3082384166 cites W2158071781 @default.
- W3082384166 cites W2162802448 @default.
- W3082384166 cites W2169746917 @default.
- W3082384166 cites W2204597224 @default.
- W3082384166 cites W2238249000 @default.
- W3082384166 cites W2345288525 @default.
- W3082384166 cites W2366704018 @default.
- W3082384166 cites W2370208167 @default.
- W3082384166 cites W2383325721 @default.
- W3082384166 cites W2531220143 @default.
- W3082384166 cites W2541697880 @default.
- W3082384166 cites W2551488385 @default.
- W3082384166 cites W2594055979 @default.
- W3082384166 cites W2597163733 @default.
- W3082384166 cites W2599720466 @default.
- W3082384166 cites W2609369505 @default.
- W3082384166 cites W2734594314 @default.
- W3082384166 cites W2765499411 @default.
- W3082384166 cites W2767254108 @default.
- W3082384166 cites W2783956240 @default.
- W3082384166 cites W2785832652 @default.
- W3082384166 cites W2887204773 @default.
- W3082384166 cites W2887297741 @default.
- W3082384166 cites W2897959780 @default.
- W3082384166 cites W2902245876 @default.
- W3082384166 cites W2951178208 @default.
- W3082384166 cites W2954554409 @default.
- W3082384166 cites W2995441282 @default.
- W3082384166 cites W3003722324 @default.
- W3082384166 cites W3003988923 @default.
- W3082384166 cites W3006238995 @default.
- W3082384166 cites W3025622447 @default.
- W3082384166 cites W3098221464 @default.
- W3082384166 cites W3098382518 @default.
- W3082384166 cites W3100502404 @default.
- W3082384166 cites W3100631029 @default.
- W3082384166 cites W3100776875 @default.
- W3082384166 cites W3100810381 @default.
- W3082384166 cites W3101661409 @default.
- W3082384166 cites W3102377797 @default.
- W3082384166 cites W3102577717 @default.
- W3082384166 cites W3102796315 @default.
- W3082384166 cites W3102866465 @default.
- W3082384166 cites W3103287185 @default.
- W3082384166 cites W3103426759 @default.
- W3082384166 cites W3104305918 @default.
- W3082384166 cites W3104308872 @default.