Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100321711> ?p ?o ?g. }
- W3100321711 endingPage "60" @default.
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- W3100321711 abstract "We present high-resolution multiwavelength radio continuum images of the region within 150$$ of Sgr A*, revealing a number of new extended features and stellar sources in this region. First, we detect a continuous 2 east-west ridge of radio emission, linking Sgr A* and a cluster of stars associated with IRS 13N and IRS 13E. The ridge suggests that an outflow of east-west blob-like structures is emerging from Sgr A*. We also find arc-like features within the ridge with morphologies suggestive of photoevaporative protoplanetary disks. We use near-IR fluxes to show that the emission has similar characteristics to those of a protoplanetary disk irradiated by the intense radiation field at the Galactic center. This suggests that star formation has taken place within the S cluster 2$$ from Sgr A*. We suggest that the diffuse X-ray emission associated with Sgr A* is due to an expanding hot wind produced by the mass loss from B-type main sequence stars, and/or the disks of photoevaporation of low mass YSOs at a rate ~10^{-6} solar mass per year. The proposed model naturally reduces the inferred accretion rate and is an alternative to the inflow-outflow style models to explain the underluminous nature of Sgr A*. Second, we detect new cometary radio and nea-IR sources and a striking tower of radio emission suggesting that they are tracing interaction sites of a mildly relativistic jet from Sgr A* with the atmosphere of stars and the nonthermal Sgr A East shell at a PA$sim50-60^circ$ with ~10^{-7} solar mass per year, and opening angle 10 degrees." @default.
- W3100321711 created "2020-11-23" @default.
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- W3100321711 date "2016-02-29" @default.
- W3100321711 modified "2023-10-14" @default.
- W3100321711 title "SGR A* AND ITS ENVIRONMENT: LOW-MASS STAR FORMATION, THE ORIGIN OF X-RAY GAS AND COLLIMATED OUTFLOW" @default.
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- W3100321711 doi "https://doi.org/10.3847/0004-637x/819/1/60" @default.
- W3100321711 hasPublicationYear "2016" @default.
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