FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4220852104> ?p ?o ?g. }

• W4220852104 endingPage "2929" @default.
• W4220852104 startingPage "2904" @default.
• W4220852104 abstract "The nebular recombination line H$alpha$ is widely used as a star-formation rate (SFR) indicator in the local and high-redshift Universe. We present a detailed H$alpha$ radiative transfer study of high-resolution isolated Milky-Way and Large Magellanic Cloud simulations that include radiative transfer, non-equilibrium thermochemistry, and dust evolution. We focus on the spatial morphology and temporal variability of the H$alpha$ emission, and its connection to the underlying gas and star formation properties. The H$alpha$ and H$beta$ radial and vertical surface brightness profiles are in excellent agreement with observations of nearby galaxies. We find that the fraction of H$alpha$ emission from collisional excitation amounts to $f_{rm col}sim5-10%$, only weakly dependent on radius and vertical height, and that scattering boosts the H$alpha$ luminosity by $sim40%$. The dust correction via the Balmer decrement works well (intrinsic H$alpha$ emission recoverable within $25%$), though the dust attenuation law depends on the amount of attenuation itself both on spatially resolved and integrated scales. Important for the understanding of the H$alpha$-SFR connection is the dust and helium absorption of ionizing radiation (Lyman continuum [LyC] photons), which are about $f_{rm abs}approx28%$ and $f_{rm He}approx9%$, respectively. Together with an escape fraction of $f_{rm esc}approx6%$, this reduces the available budget for hydrogen line emission by nearly half ($f_{rm H}approx57%$). We discuss the impact of the diffuse ionized gas, showing - among other things - that the extraplanar H$alpha$ emission is powered by LyC photons escaping the disc. Future applications of this framework to cosmological (zoom-in) simulations will assist in the interpretation of spectroscopy of high-redshift galaxies with the upcoming James Webb Space Telescope." @default.
• W4220852104 created "2022-04-03" @default.
• W4220852104 creator A5005759342 @default.
• W4220852104 creator A5015564579 @default.
• W4220852104 creator A5036415893 @default.
• W4220852104 creator A5062258024 @default.
• W4220852104 creator A5066497572 @default.
• W4220852104 creator A5068691254 @default.
• W4220852104 creator A5081711451 @default.
• W4220852104 creator A5084467446 @default.
• W4220852104 creator A5085246344 @default.
• W4220852104 date "2022-03-24" @default.
• W4220852104 modified "2023-10-15" @default.
• W4220852104 title "H <i>α</i> emission in local galaxies: star formation, time variability, and the diffuse ionized gas" @default.
• W4220852104 cites W1588119166 @default.
• W4220852104 cites W1591846644 @default.
• W4220852104 cites W1649812273 @default.
• W4220852104 cites W1883767967 @default.
• W4220852104 cites W1953891655 @default.
• W4220852104 cites W1966671643 @default.
• W4220852104 cites W1967876247 @default.
• W4220852104 cites W1971309744 @default.
• W4220852104 cites W1974174849 @default.
• W4220852104 cites W1979812345 @default.
• W4220852104 cites W1985720489 @default.
• W4220852104 cites W1987635305 @default.
• W4220852104 cites W1987799421 @default.
• W4220852104 cites W1989288032 @default.
• W4220852104 cites W1991218591 @default.
• W4220852104 cites W1996125442 @default.
• W4220852104 cites W2002433778 @default.
• W4220852104 cites W2005276762 @default.
• W4220852104 cites W2011301426 @default.
• W4220852104 cites W2015295900 @default.
• W4220852104 cites W2030750565 @default.
• W4220852104 cites W2034608771 @default.
• W4220852104 cites W2037187722 @default.
• W4220852104 cites W2041542911 @default.
• W4220852104 cites W2045895958 @default.
• W4220852104 cites W2047792432 @default.
• W4220852104 cites W2054487943 @default.
• W4220852104 cites W2054801391 @default.
• W4220852104 cites W2055189601 @default.
• W4220852104 cites W2055838386 @default.
• W4220852104 cites W2057195737 @default.
• W4220852104 cites W2069167003 @default.
• W4220852104 cites W2073315382 @default.
• W4220852104 cites W2086949239 @default.
• W4220852104 cites W2095813547 @default.
• W4220852104 cites W2102999192 @default.
• W4220852104 cites W2104264095 @default.
• W4220852104 cites W2107436274 @default.
• W4220852104 cites W2110021525 @default.
• W4220852104 cites W2125834782 @default.
• W4220852104 cites W2127016235 @default.
• W4220852104 cites W2128886718 @default.
• W4220852104 cites W2135625048 @default.
• W4220852104 cites W2145321334 @default.
• W4220852104 cites W2152856327 @default.
• W4220852104 cites W2157040099 @default.
• W4220852104 cites W2167635287 @default.
• W4220852104 cites W2180941543 @default.
• W4220852104 cites W2200847299 @default.
• W4220852104 cites W2231005101 @default.
• W4220852104 cites W2292658631 @default.
• W4220852104 cites W2326751336 @default.
• W4220852104 cites W2418080963 @default.
• W4220852104 cites W2484772434 @default.
• W4220852104 cites W2528255028 @default.
• W4220852104 cites W2543088168 @default.
• W4220852104 cites W2560509139 @default.
• W4220852104 cites W2589321212 @default.
• W4220852104 cites W2765207156 @default.
• W4220852104 cites W2767950361 @default.
• W4220852104 cites W2770514005 @default.
• W4220852104 cites W2784796110 @default.
• W4220852104 cites W2786992128 @default.
• W4220852104 cites W2795712285 @default.
• W4220852104 cites W2800175216 @default.
• W4220852104 cites W2800920361 @default.
• W4220852104 cites W2888532099 @default.
• W4220852104 cites W2895822633 @default.
• W4220852104 cites W2898248573 @default.
• W4220852104 cites W2906938424 @default.
• W4220852104 cites W2907787901 @default.
• W4220852104 cites W2913221613 @default.
• W4220852104 cites W2914889762 @default.
• W4220852104 cites W2921834202 @default.
• W4220852104 cites W2941404774 @default.
• W4220852104 cites W2943857082 @default.
• W4220852104 cites W2943910362 @default.
• W4220852104 cites W2945410361 @default.
• W4220852104 cites W2952177236 @default.
• W4220852104 cites W2964339914 @default.
• W4220852104 cites W2972734562 @default.
• W4220852104 cites W2973303171 @default.
• W4220852104 cites W2975997054 @default.
• W4220852104 cites W2979747258 @default.

• next