Dr. Salvatore Orlando
INAF-Palermo, Italy
Modelling mass accretion processes in young stellar objects.
Abstract:
Accretion of matter is a process that plays a central role in the physics of young stellar objects. The analysis of the structure by which matter settles on the star can unveil key information about the process of star formation by providing details on mass accretion rates, stellar magnetic field configurations, possible effects of accretion on the stellar coronal activity, etc. Here I review some of the results obtained by the group at INAF/OAPA by using multi-dimensional MHD models of accretion processes in young stars. In particular, I will discuss: 1) the effects of a strong flaring activity that occurs in proximity of an accretion disk and leads to perturbations of the disk and to mass accretion episodes and 2) the dynamics, stability, and structure of accretion columns that hit the surface of a classical T Tauri star, producing shocks.
Location: 31 Fitzwilliam Place, Dublin 2
Upcoming seminars:
https://www.dias.ie/2018/10/23/astronomy-and-astrophysics-seminar-schedule-2019/
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Last Updated: 14th January 2019 by Rebeca Garcia
2019-01-17, 12:00, Dr. Salvatore Orlando (INAF-Palermo, Italy), Modelling mass accretion processes in young stellar objects.
Dr. Salvatore Orlando
INAF-Palermo, Italy
Modelling mass accretion processes in young stellar objects.
Abstract:
Accretion of matter is a process that plays a central role in the physics of young stellar objects. The analysis of the structure by which matter settles on the star can unveil key information about the process of star formation by providing details on mass accretion rates, stellar magnetic field configurations, possible effects of accretion on the stellar coronal activity, etc. Here I review some of the results obtained by the group at INAF/OAPA by using multi-dimensional MHD models of accretion processes in young stars. In particular, I will discuss: 1) the effects of a strong flaring activity that occurs in proximity of an accretion disk and leads to perturbations of the disk and to mass accretion episodes and 2) the dynamics, stability, and structure of accretion columns that hit the surface of a classical T Tauri star, producing shocks.
Location: 31 Fitzwilliam Place, Dublin 2
Upcoming seminars:
https://www.dias.ie/2018/10/23
Category: Seminars
Big thank you to @MartinaPQuinn of @helloalicepr for moderating the discussion, and of course to our panel @NeasaMcG @CormacORafferty and @laoneill111
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@laoneill "it's our job as researchers to keep reminding governments how important basic research is" "For Dev basic research being carried out in Ireland was a badge of pride"
@NeasaMcG Schrödinger's work in causality was not well received by the religious authorities at the time At the same time DIAS did have Catholic priests working on research projects in the early days, so there was not the conflict you might think between science and religion
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@CormacORafferty Schrödinger was gifted at explaining difficult concepts
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@laoneill111 how Schrödinger's book inspired scientists to change fields and result in the finding of the double helix.
@NeasaMcG explaining how DIAS came about and how Schrödinger was attracted to Ireland #DIASdiscovers
Panel Discussion getting underway! @laoneill111 @CormacORafferty @NeasaMcG @MartinaPQuinn
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