All posts by iaaadmin

IAA Zoom Lecture 6th Jan 2021 19:30 – Prof Stephen Smartt (QUB)

“Searching for Kilonovae in the nearby Universe” 

The LIGO-Virgo gravitational wave detectors carried out the their third observing run (called O3) during 2019-2020. Many black hole mergers were detected, along with one confident binary neutron star merger and a possible black hole – neutron star system. At the same time, wide-field optical sky surveys are discovering a remarkable diversity in how stars merge, collapse and explode. Only one gravitational wave source has had a discovery of an electromagnetic counterpart.

In 2017 a a pair of merging neutron stars produced what we now call a kilonova (“a thousand novas”!). This was a remarkably fast transient, which decayed in a matter of days.  Many surveys have been searching for these kilonovae without success but given they can be as bright as supernovae they should be detectable irrespective of gravitational wave signals. I will discuss our efforts to uncover this new class of object and reasons why we haven’t found them yet. 

Stephen Smartt is a professor of astrophysics at Queen’s University. He has worked at the Isaac Newton Group of telescopes on La Palma and the University of Cambridge. He leads several international projects, mostly focused on regularly surveying the sky to find anything that changes and his group manage the large scale data processing of two NASA funded surveys. He has discovered supernova progenitors, the faintest supernovae and most luminous explosions as well as mergers of compact stars. In 2018 he was awarded the Royal Irish Academy’s Gold Medal and was elected a Fellow of the Royal Society in 2020.

Paul Evans is inviting you to a scheduled Zoom meeting.

Topic: IAA Prof Stephen Smartt
Time: Jan 6, 2021 07:15 PM London

Join Zoom Meeting
https://us02web.zoom.us/j/83574479742?pwd=WDZhZm5kUFVGeXg0ZCt2a3Y4Skp5UT09

Meeting ID: 835 7447 9742
Passcode: 322946

This talk will also be Simulcast on our YouTube Channel

https://www.youtube.com/user/irishastronomy/videos

IAA ZOOM LECTURE – WEDS 16th DEC 19:30 – Dr Gavin Ramsay – “Gravitational Wave Optical Transient Observer”

Abstract:
The direct detection of gravitational waves from merging black holes and neutron stars using the Ligoand Virgo detectors is one of humankind’s greatest triumphs. However, the exact position in the skyof these bursts is not well constrained, often to within hundreds or more square degrees.

For merging neutrons stars, it was predicted that an electromagnetic counterpart would be visible. If this could be identified then so would the location of the merging event. The Gravitational-wave Optical Transient Observer (GOTO) is a project whose goal is to detect these optical counterparts of gravitational wave events. One prototype has been running on the island of La Palma for more than 2 years, but next year will see a second array on La Palma, with two more nodes in Siding Spring being planned. 


Bio:
Gavin did his PhD at UCL’s Mullard Space Science Laboratory using data from the Rosat X-ray satellite to study magnetic accreting binaries. After several years at the University of Utrecht, he returned to MSSL, and came to Armagh in 2007.

He still studies accreting binaries, but has led several wide field photometric surveys and also uses Kepler and TESS data to study the activity levels of Solar type and low mass stars. He leads Armaghs contribution to the GOTO project.

Paul Evans is inviting you to a scheduled Zoom meeting.

Topic: IAA – Dr Gavin Ramsay
Time: Dec 16, 2020 07:15 PM London

Join Zoom Meeting
https://us02web.zoom.us/j/88696378331?pwd=Z2JDN2k0eE9mUmVia2Y5ampnem5pQT09

Meeting ID: 886 9637 8331
Passcode: 180521

The room will open at approximately 19:15 to get everyone in for a 19:30 sharp start.

The meeting will also be simulcast on our YouTube Channel

https://www.youtube.com/user/irishastronomy/videos

IAA Zoom Lecture – Weds 2nd Dec 19:30 – Dr Caitriona Jackman, DIAS

“Adventures in the Outer Solar System”

Abstract:
In this talk we will Zoom (pun intended) to the outer solar system to
explore the gas giant planets Jupiter and Saturn. I will furnish the
audience with plenty of fun facts about the amazing worlds of dynamic
auroral displays, diverse moons, and mysterious atmospheres. I will
focus on some of the famous spacecraft including Cassini which spent 13
years exploring the Saturn system, and NASA’s Juno which is currently in
orbit around Jupiter.

Bio:
Dr. Caitriona Jackman is an Honorary Professor at the Dublin Institute
for Advanced Studies where she leads a research group on Planetary
Magnetospheres. She has worked with data from missions including NASA’s Cassini at Saturn, ESA’s Cluster mission in orbit around Earth, NASA’s Juno at Jupiter, and with data from the Hubble Space Telescope, and the Chandra X-ray Observatory. Her research interests include understanding how the aurora works, and how machine learning and complexity science can be used to study huge volumes of data from space.

Paul Evans is inviting you to a scheduled Zoom meeting.

Topic: IAA – Prof Caitriona Jackman
Time: Dec 2, 2020 07:15 PM London

Join Zoom Meeting
https://us02web.zoom.us/j/89704234875?pwd=VXpDMFI2N2JneG9RTW9MLzJ1bjM4dz09

Meeting ID: 897 0423 4875
Passcode: 551722

The room will open at approximately 19:15 to get everyone in for a 19:30 sharp start.

The meeting will also be simulcast on our YouTube Channel

https://www.youtube.com/user/irishastronomy/videos

IAA Zoom Lecture – Weds 18th Nov 19:30 – Dr Jorick Vink

“Thirty Years of Hubble: opening the Treasure Chest”

Synopsis:

Over the last 30 years the Hubble Space Telescope (HST) has spoilt us with the most beautiful, colourful images one can image. In addition to this inspirational role these observations have provided key insights into a vast number of astronomical research fields varying from the formation of planetary systems to Cosmology.

In this talk I attempt to give an overview of some of the most ground-breaking Astrophysical insights that HST has given the world of Astrophysics, revealing the stories behind those pretty pictures. 

Bio:

Jorick Vink started his career at Utrecht University in the Netherlands while also spending an 8 month period at NASA’s Goddard Space Flight Centre.After his PhD, he moved to Imperial College London, before eventually settling at Armagh Observatory in 2007, where he was also Acting Director at the Planetarium during the merger of the two organisations in 2015/16.

He obtained a Visiting Professorship from the University of Leeds in 2017, and is currently President of the IAU Commission of massive stars, and Principle Investigator (PI) of a Large Programme with ESO-VLT complementing the Hubble Space Telescope (HST) ULLYSES Project of massive stars.

Paul Evans is inviting you to a scheduled Zoom meeting.

Topic: IAA – Dr Jorick Vink
Time: Nov 18, 2020 07:15 PM London

Join Zoom Meeting
https://us02web.zoom.us/j/86833296763?pwd=a0lmdnhtYlBJTDV4Q0VNVWRPanJZQT09

Meeting ID: 868 3329 6763
Passcode: 439102

The room will open at approximately 19:15 to get everyone in for a 19:30 sharp start.

The meeting will also be simulcast on our YouTube Channel

https://www.youtube.com/user/irishastronomy/videos