eta Carinae: high angular resolution continuum, H30 alpha and He30 alpha ALMA images

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00539706" target="_blank" >RIV/67985815:_____/20:00539706 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnras/staa2907" target="_blank" >https://doi.org/10.1093/mnras/staa2907</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staa2907" target="_blank" >10.1093/mnras/staa2907</a>

Result language
angličtina
Original language name
eta Carinae: high angular resolution continuum, H30 alpha and He30 alpha ALMA images
Original language description
We present images of eta Carinae in the recombination lines H30 alpha and He30 alpha and the underlying continuum with 50 mas resolution (110 au), obtained with ALMA. For the first time, the 230 GHz continuum image is resolved into a compact core, coincident with the binary system position, and aweaker extended structure to theNWof the compact source. Iso-velocity images of the H30 alpha recombination line show at least 16 unresolved sources with velocities between -30 and -65 km s(-1) distributed within the continuum source. A NLTE model, with density and temperature of the order of 10(7) cm(-3) and 10(4) K, reproduce both the observed H30 alpha line profiles and their underlying continuum flux densities.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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