The 1989 and 2015 outbursts of V404 Cygni: a global study of wind-related optical features

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F18%3A00496056" target="_blank" >RIV/67985815:_____/18:00496056 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1093/mnras/sty2402" target="_blank" >http://dx.doi.org/10.1093/mnras/sty2402</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/sty2402" target="_blank" >10.1093/mnras/sty2402</a>

Result language
angličtina
Original language name
The 1989 and 2015 outbursts of V404 Cygni: a global study of wind-related optical features
Original language description
We present a data base consisting of 651 optical spectra obtained during this event, that we combine with 58 spectra gathered during the fainter December 2015 sequel outburst, as well as with 57 spectra from the 1989 event. we build diagnostic diagrams that enable us to study the evolution of typical emission line parameters, such as line fluxes and equivalent widths, and develop a technique to systematically detect outflow signatures. We find that these are present throughout the outburst, even at very low optical fluxes, and that both types of outflow features are observed simultaneously in some spectra, confirming the idea of a common origin.
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)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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