BEGIN:VCALENDAR VERSION:2.0 PRODID:-//jEvents 2.0 for Joomla//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VTIMEZONE TZID:Australia/Sydney BEGIN:STANDARD DTSTART:20170905T193000 RDATE:20171001T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20180401T020000 RDATE:20181007T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20190407T020000 RDATE:20191006T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20200405T020000 RDATE:20201004T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20210404T020000 RDATE:20211003T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20220403T020000 RDATE:20221002T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20230402T020000 RDATE:20231001T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20240407T020000 RDATE:20241006T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20250406T020000 RDATE:20251005T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20260405T020000 RDATE:20261004T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20270404T020000 RDATE:20271003T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:STANDARD DTSTART:20280402T020000 RDATE:20281001T030000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:Australia/Sydney AEST END:STANDARD BEGIN:DAYLIGHT DTSTART:20171001T030000 RDATE:20180401T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20181007T030000 RDATE:20190407T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20191006T030000 RDATE:20200405T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20201004T030000 RDATE:20210404T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20211003T030000 RDATE:20220403T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20221002T030000 RDATE:20230402T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20231001T030000 RDATE:20240407T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20241006T030000 RDATE:20250406T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20251005T030000 RDATE:20260405T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20261004T030000 RDATE:20270404T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20271003T030000 RDATE:20280402T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20281001T030000 RDATE:20290401T020000 TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:Australia/Sydney AEDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:d631b7fd0c83f7cc99a5fe5306ccc1e8 CATEGORIES:Guest Speaker Night CREATED:20180218T160041 SUMMARY:Guest Speaker - Rajika Kuruwita (ANU) DESCRIPTION:Formation of Binary Stars and Planets around Binary Star SystemsIn Douglas Adams' Hitchhikers guide to the Galaxy, the planet Magrathea is described a s "the impossible planet", orbiting twin suns. But is it impossible to make a planet like Magrathea? Well no, we've discovered a number of planets aro und binary star systems, but I want to know whether it is easier or harder for planets to form in binary systems. When considering planet formation as tronomers have mostly only considered planet formation around single stars. Despite our anthropocentric bias towards considering single stars first, a larger portion of stars are born in binary or multiple star systems. In my presentation I will be talking about my research on binary star formation and the evolution of protoplanetary disks in these systems. My work has inv estigated binary and disk evolution from a theoretical and observational pe rspective, and looked at how various mechanisms such as accretion, outflows , photoevaporation and dynamical evolution changes between the single and b inary star pictures. Hopefully by the end of my presentation I will have co nvinced you that trying to understand planet formation around binary stars should be considered and that planets like Tatooine and Gallifrey are not j ust for science fiction.\nRajika Kuruwita\nI am a Sri Lankan born Australia n astronomy postgraduate researcher. I received my Bachelor of Science (maj oring in Astronomy and Astrophysics) and Master of Research (majoring in Ph ysics and Astronomy) from Macquarie University. I am currently doing my PhD at the Australian National University.\nMy master's thesis research consis ted of hydrodynamical simulations of the fall back of bound material onto b inary star systems undergoing common envelope evolution.\nMy current resear ch is focused on the formation of binary star systems and the implications for planet formation around binary stars. My PhD research primarily consist s of ideal MHD simulations with FLASH of binary star formation. I also have an observational component focused on creating a census of the fraction of proto-planetary disks hosted by young binary stars in various star forming regions.\nI have plenty of outreach experience. I organised and ran observ atory and planetarium sessions at Macquarie University. At Mount Stromlo Ob servatory I also organise and run private and public outreach sessions.\n X-ALT-DESC;FMTTYPE=text/html:

Formation of Binary Stars and Planets around Binary Star Systems

In Douglas Adams' Hitchhikers guide to the Galaxy, the planet Magrathea is described as "the impossible planet", orbiting twin suns. But is it imposs ible to make a planet like Magrathea? Well no, we've discovered a number of planets around binary star systems, but I want to know whether it is easie r or harder for planets to form in binary systems. When considering planet formation astronomers have mostly only considered planet formation around s ingle stars. Despite our anthropocentric bias towards considering single st ars first, a larger portion of stars are born in binary or multiple star sy stems. In my presentation I will be talking about my research on binary sta r formation and the evolution of protoplanetary disks in these systems. My work has investigated binary and disk evolution from a theoretical and obse rvational perspective, and looked at how various mechanisms such as accreti on, outflows, photoevaporation and dynamical evolution changes between the single and binary star pictures. Hopefully by the end of my presentation I will have convinced you that trying to understand planet formation around b inary stars should be considered and that planets like Tatooine and Gallifr ey are not just for science fiction.

Rajika Kuruwita

Rajika Kuruwita

I am a Sri Lankan born Australian astronomy postgraduate researche r. I received my Bachelor of Science (majoring in Astronomy and Astrophysic s) and Master of Research (majoring in Physics and Astronomy) from Macquari e University. I am currently doing my PhD at the Australian National Univer sity.

My master's thesis research consisted of hydrodynamical simulat ions of the fall back of bound material onto binary star systems undergoing common envelope evolution.

My current research is focused on the for mation of binary star systems and the implications for planet formation aro und binary stars. My PhD research primarily consists of ideal MHD simulatio ns with FLASH of binary star formation. I also have an observational compon ent focused on creating a census of the fraction of proto-planetary disks h osted by young binary stars in various star forming regions.

I have p lenty of outreach experience. I organised and ran observatory and planetari um sessions at Macquarie University. At Mount Stromlo Observatory I also or ganise and run private and public outreach sessions.

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