News and Events

(Postponed until a later date TBC), level 7, David Caro Building Prof Mark Krumholz Email: mark.krumholz@anu.edu.au Abstract In this talk, I review attempts to build a self-consistent model for the dynamical state of the interstellar medium (ISM) in star-forming galactic discs. Ideally such a model would incorporate star formation, stellar feedback, gravitational instability, the maintenance of turbulence, and transport of gas through the …

Wed 28th Aug 2019 @2:15 PM, level 7, David Caro Building Dr Belinda Nicholson Email: belinda.nicholson@usq.edu.aub Abstract In recent years Doppler Imaging and Zeeman Doppler Imaging has enabled characterisation of the spots and surface magnetic fields of weak-line T Tauri stars. These objects are nearing the main sequence and so have cleared their inner discs and stopped accreting, but are still contracting and …

Wed 21st Aug 2019 @12:00 PM, level 7, David Caro Building Prof. John Lattanzio Email:  john.lattanzio@monash.edu Abstract The final 12 minutes of the Apollo 11 moon landing were filled with problems and ample reasons to abort. I will explain what was happening and why, and thus unlock the tension of those last few minutes. While the world watched in awe of the achievement, …

Wed 14th Aug 2019 @14:15 PM, level 7, David Caro Building Alejandro Vigna Gomez Email:  avigna@star.sr.bham.ac.uk Abstract Neutron stars have been associated with pulsars, X-ray binaries, Galactic double neutron stars, short gamma-ray bursts, gravitational waves and luminous red novae. In this talk, I will discuss the study of double neutron stars using the COMPAS population synthesis code. I will focus on the orbital …

Wed 7th Aug 2019 @14:15 PM, level 7, David Caro Building Dr Anne Hutter Email:  a.k.hutter@rug.nl Abstract The Epoch of Reionization represents an important epoch in the history in the Universe, when the first stars and galaxies gradually ionize the neutral hydrogen in the intergalactic medium (IGM). Understanding the nature of the ionizing sources, the associated ionization of the IGM, and its impact on subsequent structure formation …

Thurs 1st Aug 2019 @14:15 PM, level 7, David Caro Building Adélie Gorce Imperial College London/Institut d'Astrophysique Spatiale Email:  adelie.gorce16@imperial.ac.uk Abstract During the Epoch of Reionisation (EoR), the first galaxies and AGNs ionise the neutral atoms surrounding them. Although essential, this period in the history of the Universe is still poorly known. We wonder about the sources: if it is generally admitted that the …

Email:  charlotte.mason@cfa.harvard.edu Abstract The reionization of intergalactic hydrogen in the universe's first billion years was likely driven by the first stars and galaxies. The timeline of reionization is currently uncertain but if it is accurately measured it can unveil properties of 'first light' sources. I will describe how we can use galaxies at our current observational frontiers to learn about reionization. In …

Mon 22nd July, 2019 @3:15 PM, level 6, David Caro Building Akanksha Kapahtia, Indian Institute of Astrophysics Email:  akanksha.kapahtia@iiap.res.in Abstract Neutral hydrogen is the dominant component of the universe after recombination with high density regions harbouring the first luminous objects. The radiation from these first luminous objects changes the thermal and ionization state of the intergalactic medium leading to a major transition in the …