AstroBigné meetings
AstroBigné is a series of informal meetings held at the Observatory every other Tuesday at noon, intended as an opportunity to interconnect the Arcetri community, share new ideas and results, create or reinforce synergies between groups and individuals, or simply get together for a casual discussion. As such, AstroBigné is meant to be accessible to a broad audience and cover a wide range of topics, including astronomy, technology, historic research, public outreach, institutional communications, etc. Not by chance, the name bigné was chosen to designate something attractive, quick to grasp, and delicious to eat. Each AstroBigné is structured into 10 minutes of free chat followed by two flash contributions of 10 minutes each (5 minutes of presentation plus 5 minutes of questions). A regular contribution of 20 minutes (10 plus 10) can be alternatively allocated, provided that it is focused on one/two key points without becoming a regular talk or short seminar. The presentation format is highly flexible and all topics are allowed (some examples can be found here). The speaker can also choose the preferred language (Italian or English), with the only constraint of preparing the slides in English.
AstroBigné is held in presence only in Aula Pacini every other Tuesday at 12.00
Sign up for a presentation at this link (first semester 2024-2025)
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The current members of the AstroBigné Organizing Committee are Maria Bazzicalupo (Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.), Emanuele Nardini (Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.), and Marco Padovani (Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.)
Next AstroBigné: 10th June 2025
Martina Scialpi - My small journey observing Dual (Binary) and Lensed AGN
In this short talk, I will introduce my PhD work on dual AGN (two active galactic nuclei in the same galaxy) and gravitationally lensed quasars (multiple images of the same AGN caused by lensing). These are different phenomena but can look very similar in high-resolution images, so they are often discovered together. Dual AGN help us understand how galaxies and supermassive black holes grow, and they are key to predicting gravitational wave events. Compact lensed quasars, on the other hand, are powerful tools to study dark matter and galaxy structure. I will explain why these objects are interesting, how we observe them — using low- and high-resolution spectroscopy with telescopes like TNG, NTT, VLT, and Keck — and share some of the results we are getting.
