INFRARED OBSERVATIONAL MANIFESTATIONS OF YOUNG DUSTY SUPER STAR CLUSTERS
ABSTRACT The growing evidence pointing at core-collapse supernovae as large dust producers makes young massive stellar clusters ideal laboratories to study the evolution of dust immersed in a hot plasma. Here we address the stochastic injection of dust by supernovae, and follow its evolution due to...
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| Veröffentlicht in: | The Astrophysical journal 2016-01, Vol.816 (1), p.1-13 |
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| creator | Martínez-González, Sergio Tenorio-Tagle, Guillermo Silich, Sergiy |
| description | ABSTRACT The growing evidence pointing at core-collapse supernovae as large dust producers makes young massive stellar clusters ideal laboratories to study the evolution of dust immersed in a hot plasma. Here we address the stochastic injection of dust by supernovae, and follow its evolution due to thermal sputtering within the hot and dense plasma generated by young stellar clusters. Under these considerations, dust grains are heated by means of random collisions with gas particles which result in the appearance of infrared spectral signatures. We present time-dependent infrared spectral energy distributions that are to be expected from young stellar clusters. Our results are based on hydrodynamic calculations that account for the stochastic injection of dust by supernovae. These also consider gas and dust radiative cooling, stochastic dust temperature fluctuations, the exit of dust grains out of the cluster volume due to the cluster wind, and a time-dependent grain size distribution. |
| doi_str_mv | 10.3847/0004-637X/816/1/39 |
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Here we address the stochastic injection of dust by supernovae, and follow its evolution due to thermal sputtering within the hot and dense plasma generated by young stellar clusters. Under these considerations, dust grains are heated by means of random collisions with gas particles which result in the appearance of infrared spectral signatures. We present time-dependent infrared spectral energy distributions that are to be expected from young stellar clusters. Our results are based on hydrodynamic calculations that account for the stochastic injection of dust by supernovae. 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J</addtitle><description>ABSTRACT The growing evidence pointing at core-collapse supernovae as large dust producers makes young massive stellar clusters ideal laboratories to study the evolution of dust immersed in a hot plasma. Here we address the stochastic injection of dust by supernovae, and follow its evolution due to thermal sputtering within the hot and dense plasma generated by young stellar clusters. Under these considerations, dust grains are heated by means of random collisions with gas particles which result in the appearance of infrared spectral signatures. We present time-dependent infrared spectral energy distributions that are to be expected from young stellar clusters. Our results are based on hydrodynamic calculations that account for the stochastic injection of dust by supernovae. 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| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Clusters Dust dust, extinction ENERGY SPECTRA FLUCTUATIONS GALAXIES galaxies: star clusters: general GRAIN SIZE Grains GRAVITATIONAL COLLAPSE HOT PLASMA HYDRODYNAMICS Infrared INTERSTELLAR GRAINS RADIATIVE COOLING STAR CLUSTERS STAR EVOLUTION Stellar evolution STELLAR WINDS STOCHASTIC PROCESSES Stochasticity SUPERNOVAE TIME DEPENDENCE |
| title | INFRARED OBSERVATIONAL MANIFESTATIONS OF YOUNG DUSTY SUPER STAR CLUSTERS |
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