Scientists Meet Scientists –TUM-IAS Wednesday Coffee Talk by Dr. Gabriel Bartosch Caminha: “The James Webb Telescope reveals extremely distant objects behind a gravitational magnifier”

Events, WCT |


On January 18, 2023, Dr. Gabriel Bartosch Caminha (Observational Cosmology, TUM) will talk about “The James Webb Telescope reveals extremely distant objects behind a gravitational magnifier.”

Abstract: The first science image released by the James Webb Space Telescope (JWST) was of a gravitational lens, in particular the galaxy cluster SMACS J0723.3−7327. We used the data from this brand-new telescope to model the mass distribution and lensing effect of SMACS0723 with great accuracy. Acting as a so-called gravitational lens, the foreground galaxy cluster produces both multiple images of background galaxies and magnifies these images. One family of such multiple images belongs to a galaxy, which the model predicts to be at a large distance, i.e. whose light travelled some 13 billion years before reaching the telescope. If confirmed, this will emphasise the importance of accurate gravitational lens models for the identification of distant galaxies and their detailed study.

Date: January 18, 2023
Time: 13:00 CET (until approx. 14:00)
Location: online

Registration: The TUM-IAS Wednesday Coffee talks are currently held online via Zoom. To register and to receive the Zoom link, please send an email to events@ias.tum.de.


THE TUM-IAS WEDNESDAY COFFEE TALKS

To enable our ever-growing international community to participate, the TUM-IAS Wednesday Coffee Talks are currently held online via zoom.

Would you like to receive regular updates on the TUM-IAS Wednesday Coffee Talk and the online link? Just send a short note to events@ias.tum.de!

An overview on upcoming and past TUM-IAS Wednesday Coffee Talks can be found at the TUM-IAS Wednesday Coffee Talk Overview.