Friday 6 May 2022 7.30 pm BRLSI Zoom lecture projected at the BRLSI and delivered from Cambridge 21-cm Radio Cosmology with the Square Kilometre Array (SKA): What happened after the Big Bang?

Dr Eloy de Lera Acedo
Senior Research Scientist with the Planetary Science Institute in Flagstaff, Arizona.

Image credit: (c) SKA Organisation/Swinburne Astronomy Productions

In this talk Dr de Lera Acedo will discuss the science behind understanding how the first stars formed and ionised the intergalactic medium, ~ 300 Myears after the Big Bang, effectively transforming a mostly simple and empty Universe into the realm of complex celestial objects we now know it to be today. The SKA, with its unprecedented imaging capabilities, will in a few years be able to image this unexplored epoch of the infant Universe, and a series of precursor instruments are already paving the way. He will discuss these, their science cases and their latest results.

Dr de Lera Acedo is a STFC Ernest Rutherford Fellow at the Cavendish Astrophysics laboratory of the University of Cambridge, from where he leads the Cavendish Radio Cosmology group and the REACH (Radio Experiment for the Analysis of Cosmic Hydrogen) project. Dr de Lera Acedo’s career started designing radio antennas and modelling and calibration techniques for the Square Kilometre Array telescope, and over the last decade has transitioned to cosmology research of the early epochs of the Universe using highly precise calibrated radiometers. The Cosmic Dawn (birth of the first stars) and the Epoch of Re-ionization (subsequent shaping of the InterGalactic Medium by those first stars) are the two unexplored epochs under study by Dr de Lera Acedo’s group at Cambridge.

Dr de Lera Acedo will give the lecture remotely from Cambridge via Zoom. It can be attended remotely on Zoom or in the room at the BRLSI where it will projected. 

Book tickets Here.

Note that the ticket booking procedure is no longer through Eventbrite, but is handled entirely by the BRLSI website. If you don’t already have one, you will need to create your own BRLSI account. This change is intended to be permanent, and means that the BRLSI will receive 100% of the ticket sales price.

Saturday 5th March 2022 18:00 GMT – Free Zoom Webinar: New Views of William Herschel (1738 – 1822)

In Memory of Michael Hoskin (1930-2021)

Professor Woodruff T Sullivan (University of Washington, Seattle, Wash.)
Sarah Waltz (University of the Pacific, Stockton, Cal.)
John Mulligan (Rice University, Houston, Tex.)
David Koerner (Northern Arizona University, Flagstaff, Ariz.)
Clifford Cunningham (University of Southern Queensland, Austin, Tex.)
Stephen Case (Olivet Nazarene University, Kankakee, Ill.)

On the occasion of the 200th anniversary of William Herschel’s death, “New Views of William Herschel (1738-1822)” will be presented as a Zoom session (“Webinar”) on Saturday 5 March 2022 at 1300 ET (US & Canada). The session is dedicated to the memory of the preeminent Herschel scholar Michael Hoskin(1930-2021), and sponsored by the Historical Astronomy Division of the American Astronomical Society. There are six talks over a period of three hours, including a 15-minute break.

“New Views” refers largely to Herschel’s non-astronomical life, in particular musical and other aspects of his life in Hanover, Yorkshire, and Bath before he became an astronomer following his discovery of Uranus in 1781 at age 42. Two of the presentations include many selections from his musical compositions, and a third looks at how Herschel’s fame and discoveries led to his inclusion in poetry. Two others look at his close research connections with his sister Caroline and son John.

All are invited to attend, participate via “Zoom Chat”, and ask questions of speakers. The full program (including abstracts) is available as a downloadable PDF here.

Start time is Saturday 5 March 2022 at 1300 ET (US & Canada) = 1800 GMT. If you are unable to attend the Webinar, note that the entire Session will be recorded and made available shortly after 5 March when registrants will be given the link for the recording.

Tickets are available at no cost, but you must register beforehand here.