Matches in SemOpenAlex for { <https://semopenalex.org/work/W2894782250> ?p ?o ?g. }
- W2894782250 endingPage "150" @default.
- W2894782250 startingPage "150" @default.
- W2894782250 abstract "Cosmic photons can be efficiently collected by broadband intensity mapping but information on their emission redshift and frequency is largely lost. We introduce a technique to statistically recover these otherwise collapsed dimensions by exploiting information in spatial fluctuations and apply it to the Galaxy Evolution Explorer (GALEX) All Sky and Medium Imaging Surveys. By spatially cross-correlating photons in the GALEX far-UV (1500A) and near-UV (2300A) bands with a million spectroscopic objects in the Sloan Digital Sky Survey as a function of redshift, we robustly detect the redshift-dependent intensity of the UV background (UVB) modulated by its clustering bias up to $zsim2$. These measurements clearly reveal the imprints of UVB spectral features redshifting through the filters. Using a simple parameterization, we simultaneously fit a UVB emissivity and clustering bias factor to these observations and constrain the main spectral features of the UVB spectrum: (i) the Lyman break, (ii) the non-ionizing UV continuum, which agrees with the Haardt & Madau model but does not rely on any assumption regarding the nature of the sources, and (iii) the Ly$alpha$ emission, whose luminosity density is consistent with estimates of the combined galaxy and AGN contributions at $zsim1$. Because the technique probes the total background including low surface brightness emission, we place constraints on the amount of UV light originating from the diffuse intergalactic medium (IGM). Finally, the clustering bias of UV photons is found to be chromatic and evolving. Our frequency- and redshift-dependent UVB measurement delivers a summary statistic of the universe's net radiation output from stars, black holes, and the IGM combined." @default.
- W2894782250 created "2018-10-12" @default.
- W2894782250 creator A5000637275 @default.
- W2894782250 creator A5006293834 @default.
- W2894782250 creator A5039251260 @default.
- W2894782250 date "2019-06-05" @default.
- W2894782250 modified "2023-09-24" @default.
- W2894782250 title "Broadband Intensity Tomography: Spectral Tagging of the Cosmic UV Background" @default.
- W2894782250 cites W1509944718 @default.
- W2894782250 cites W1549140568 @default.
- W2894782250 cites W1622230873 @default.
- W2894782250 cites W1748302912 @default.
- W2894782250 cites W1883767967 @default.
- W2894782250 cites W1972992203 @default.
- W2894782250 cites W1976579441 @default.
- W2894782250 cites W1976637727 @default.
- W2894782250 cites W1978067905 @default.
- W2894782250 cites W1979849939 @default.
- W2894782250 cites W1982074885 @default.
- W2894782250 cites W1988697524 @default.
- W2894782250 cites W1990203540 @default.
- W2894782250 cites W1991484857 @default.
- W2894782250 cites W1994671833 @default.
- W2894782250 cites W1995699002 @default.
- W2894782250 cites W1996537612 @default.
- W2894782250 cites W2000126425 @default.
- W2894782250 cites W2000840256 @default.
- W2894782250 cites W2013291020 @default.
- W2894782250 cites W2015295900 @default.
- W2894782250 cites W2016966639 @default.
- W2894782250 cites W2017139529 @default.
- W2894782250 cites W2017980472 @default.
- W2894782250 cites W2018719255 @default.
- W2894782250 cites W2019808974 @default.
- W2894782250 cites W2027497287 @default.
- W2894782250 cites W2028220795 @default.
- W2894782250 cites W2029343094 @default.
- W2894782250 cites W2033731878 @default.
- W2894782250 cites W2042749826 @default.
- W2894782250 cites W2045839758 @default.
- W2894782250 cites W2046523578 @default.
- W2894782250 cites W2048082844 @default.
- W2894782250 cites W2048401217 @default.
- W2894782250 cites W2048877765 @default.
- W2894782250 cites W2050216534 @default.
- W2894782250 cites W2052196743 @default.
- W2894782250 cites W2060619225 @default.
- W2894782250 cites W2062915841 @default.
- W2894782250 cites W2070696493 @default.
- W2894782250 cites W2072161578 @default.
- W2894782250 cites W2072262074 @default.
- W2894782250 cites W2087860870 @default.
- W2894782250 cites W2089524548 @default.
- W2894782250 cites W2089625321 @default.
- W2894782250 cites W2090231561 @default.
- W2894782250 cites W2092719629 @default.
- W2894782250 cites W2097835815 @default.
- W2894782250 cites W2111817932 @default.
- W2894782250 cites W2112028701 @default.
- W2894782250 cites W2121173473 @default.
- W2894782250 cites W2121862896 @default.
- W2894782250 cites W2122628071 @default.
- W2894782250 cites W2139937287 @default.
- W2894782250 cites W2143142632 @default.
- W2894782250 cites W2147630288 @default.
- W2894782250 cites W2151062050 @default.
- W2894782250 cites W2167635287 @default.
- W2894782250 cites W2169910932 @default.
- W2894782250 cites W2196386254 @default.
- W2894782250 cites W2204578610 @default.
- W2894782250 cites W2269635560 @default.
- W2894782250 cites W2333082371 @default.
- W2894782250 cites W2342407578 @default.
- W2894782250 cites W2396925636 @default.
- W2894782250 cites W2500461363 @default.
- W2894782250 cites W2526102027 @default.
- W2894782250 cites W2618353904 @default.
- W2894782250 cites W2737067876 @default.
- W2894782250 cites W2738047492 @default.
- W2894782250 cites W2792065037 @default.
- W2894782250 cites W2808302137 @default.
- W2894782250 cites W2886661855 @default.
- W2894782250 cites W2887297741 @default.
- W2894782250 cites W2950127561 @default.
- W2894782250 cites W2951522352 @default.
- W2894782250 cites W3023717689 @default.
- W2894782250 cites W3098465224 @default.
- W2894782250 cites W3098570013 @default.
- W2894782250 cites W3098621636 @default.
- W2894782250 cites W3099268282 @default.
- W2894782250 cites W3099918481 @default.
- W2894782250 cites W3100090322 @default.
- W2894782250 cites W3100254789 @default.
- W2894782250 cites W3102014803 @default.
- W2894782250 cites W3103018756 @default.
- W2894782250 cites W3103073255 @default.
- W2894782250 cites W3103397792 @default.
- W2894782250 cites W3103688182 @default.