Seminars 2021/2022

Dr. Mark Kennedy, 1st November 2021

Mark Kennedy Seminar Poster

Seminar Speaker: Dr Mark Kennedy 
Venue: Room B10A, Kane Building, UCC (Seats offered on a first come, first served basis)
Date and Time: 1st November, 2021 - 4pm
Seminar Title: 

Invisible Monsters and Spider Webs: Compact objects in the era of wide field optical surveys

Abstract:

What is the maximum mass of a neutron star? Where are the missing Galactic population of black holes? These are two of the most pressing questions in astrophysics, and ones which the enormous databases produced by telescopes such as GAIA, the Zwicky Transient Factory (ZTF), and the upcoming Vera Rubin Observatory can help us answer. In the first half of this talk, I will focus on the first question - the maximum mass of a neutron star. I will give an overview of the "spider" binary systems, where a rapidly rotating neutron star is ablating and consuming its nearby companion star. I will discuss how recent advances in modelling the spectra and light curves of these companions is leading to more precise neutron star masses. In the second half of this talk, I will discuss where I believe the answer to the missing black hole population may be found, through combining the data taken by GAIA and ZTF and applying machine learning techniques to find light curves which challenge our understanding of binary classification.



Dr. Fatima Gunning, 11th October 2021

Dr Fatima Gunning 11th October 2021

Seminar Speaker: 

Dr. Fatima Gunning
Venue: Link for joining the talk via Microsoft Teams:
https://teams.microsoft.com/l/meetup-join/19%3ameeting_MTFhN2QzZjMtN2M5NC00OGY5LWEzY2MtZWNhM2UwMDY1NmI1%40thread.v2/0?context=%7b%22Tid%22%3a%2246fe5ca5-866f-4e42-92e9-ed8786245545%22%2c%22Oid%22%3a%22a1fc07ee-e1f8-4e7c-b82b-0e9f830a651d%22%7d
Date and Time:   11th October 2021
Seminar Title: "Future proofing the Internet – from a technology leap to another"

Abstract: 

Today’s connected world is only possible due to an underpinning technology that has been implemented over the last 30-40 years: optical fibres. Understanding their principles and physical limitations are critical to future proof our communications networks for the next 30-40 years. This includes the need for technologies that enable high-capacity throughput utilising current optical fibres already installed on the ground, borrowing techniques developed for wireless systems, but also exploring new directions with novel optical fibres. In this talk, we will discuss a few fundamental technology leaps that our group has been working on: from maximising the optical fibre bandwidth utilisation with concepts such as Coherent WDM, to opening a new telecommunication window at the 2mm waveband.

Department of Physics

Roinn na Fisice

Room 213, 2nd floor, Dept. of Physics, University College Cork, Ireland,

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