20230120 < Main

Tags: view all tags

---+ January 20, 2023 7-9PM
*Event Type*: [[PublicLectures][Lecture and Stargazing]]<br>
*Title*: Fireworks from Black Holes Devouring Stars<br>
*Lecturer*: Yuhan Yao<br>
*Position*: Phd Candidate<br>
*Institution*: Caltech<br>
*Abstract*: <br>
Most galaxies in the universe are thought to contain a supermassive black hole.  While these black holes themselves do not emit light, they can be "awakened" when a star gets too close and is torn apart by their powerful gravitational forces. From start to finish, a black hole takes a couple of months to fully consume a star, all the while producing visual fireworks across the electromagnetic spectrum. I will talk about how astronomers search for these "tidal disruption events", and what we have learned about black holes as they manipulate nearby material to create new physical features.
<br><br>

<img src="%ATTACHURLPATH%/20230120V.jpg" alt="20230120V.jpg" width="768" height="1024" />

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
jpg	20230120V.jpg	r1	manage	181.7 K	2023-01-10 - 17:29	OutreachAdmin

Topic revision: r2 - 2023-01-10 - OutreachAdmin