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The dynamic broad line regions of quasars
Add to Calendar 2023-09-26T16:00:00 2023-09-26T17:00:00 UTC The dynamic broad line regions of quasars Davey Laboratory 538
Start DateTue, Sep 26, 2023
12:00 PM
End DateTue, Sep 26, 2023
1:00 PM
Presented By
Mike Eracleous (Penn State)
Event Series: Astronomy Lunch Talk

I will present an overview of work carried out by my collaborators and myself that aims to characterize the long-term variations of broad emission lines seen in quasar spectra and interpret those variations in the context of models for the line-emitting gas. I will begin with a pedagogical introduction to quasars and their broad-line regions and then I will describe in broad terms the types of long-term variability that we observe. I will then describe modeling tools that I have developed and the lessons that we have learned by studying the variations of the broad emission lines. I will close by describing the AQMES program that is part of SDSS-V, which will produce an enormous set of data suitable for studying the long-term variability of a large number of quasars.

Seminar held in 538 Davey or via Zoom: