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
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You're invited to join us for the @StpDias Statutory Public Lecture 2019 on 23 May 2019, 6pm by Prof. Don Zagier in @tcddublin. Prof. Zaigier will deliver an exciting look at 'Numbers, Knots, & Quantum Theory'. Info and tickets at: bit.ly/2JLsAUj #DIASdiscovers
As part of IQF 2019 on 22 May, Prof. Marika Taylor will explain what #BlackHoles might teach us about #QuantumComputing and conversely, what quantum theory implies about the fundamental properties of black holes. Register at bit.ly/2WuKgHo #DIASdiscovers
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If you haven't booked your place at today's lunchtime lecture from the @StpDias, exploring the legacy of Schrödinger’s 'What is Life?' lectures and book, do so now at: bit.ly/2KZStSH It's te final one lecture of the series. #DIASdiscovers
Don't miss the 4th and final lecture in our #WhatisLife series with Prof Werner Nahm, Director of @StpDias, looking at ‘Beyond the ‘What is Life?’ lectures and book’. This lecture, at 1pm tomorrow, will explore the legacy of Professor Erwin Schrödinger. bit.ly/2KZStSH
#DidYouKnow the recent earthquake in Donegal was not the county's first? In fact, they're well used to a tremor or 2.7 in the North West. Read about the county's ground shaking history in The @IrishTimes at: bit.ly/2UTkAHw #DIASdiscovers