Matches in SemOpenAlex for { <https://semopenalex.org/work/W3209351608> ?p ?o ?g. }
- W3209351608 endingPage "96" @default.
- W3209351608 startingPage "96" @default.
- W3209351608 abstract "To study the early phases of massive star formation, we present ALMA observations of SiO(5-4) emission and VLA observations of 6 cm continuum emission towards 32 Infrared Dark Cloud (IRDC) clumps, spatially resolved down to $lesssim 0.05$ pc. Out of the 32 clumps, we detect SiO emission in 20 clumps, and in 11 of them the SiO emission is relatively strong and likely tracing protostellar outflows. Some SiO outflows are collimated, while others are less ordered. For the six strongest SiO outflows, we estimate basic outflow properties. In our entire sample, where there is SiO emission, we find 1.3 mm continuum and infrared emission nearby, but not vice versa. We build the spectral energy distributions (SEDs) of cores with 1.3 mm continuum emission and fit them with radiative transfer (RT) models. The low luminosities and stellar masses returned by SED fitting suggest these are early stage protostars. We see a slight trend of increasing SiO line luminosity with bolometric luminosity, which suggests more powerful shocks in the vicinity of more massive YSOs. We do not see a clear relation between the SiO luminosity and the evolutionary stage indicated by $L/M$. We conclude that as a protostar approaches a bolometric luminosity of $sim 10^2 : L_{odot}$, the shocks in the outflow are generally strong enough to form SiO emission. The VLA 6 cm observations toward the 15 clumps with the strongest SiO emission detect emission in four clumps, which is likely shock ionized jets associated with the more massive ones of these protostellar cores." @default.
- W3209351608 created "2021-11-08" @default.
- W3209351608 creator A5008591648 @default.
- W3209351608 creator A5009385426 @default.
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- W3209351608 creator A5044545925 @default.
- W3209351608 creator A5081075968 @default.
- W3209351608 creator A5090718980 @default.
- W3209351608 date "2021-11-01" @default.
- W3209351608 modified "2023-10-12" @default.
- W3209351608 title "SiO Outflows as Tracers of Massive Star Formation in Infrared Dark Clouds" @default.
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- W3209351608 doi "https://doi.org/10.3847/1538-4357/ac0829" @default.
- W3209351608 hasPublicationYear "2021" @default.