Astronomy Colloquium

Image
Image of the sky from SDSS
January 23, 2020
3:00PM - 4:00PM
Location
0130 CBEC

Date Range
Add to Calendar 2020-01-23 15:00:00 2020-01-23 16:00:00 Astronomy Colloquium

A Modern View of Quasars in the LSST Era

Gordon Richards - Drexel University

A modern view of quasars sees them as diverse “processes” as opposed to the traditional view as more static “things”. Such a picture is important both to understanding quasars themselves and also the role that they play in the evolution of galaxies. I will present some broad perspectives on the relationship between quasar physics and their spectral energy distributions (SED) from the X-ray to radio. In particular, I will discuss connections between the accretion rate, black hole mass, optical/UV continuum, radio loudness, broad absorption line properties, and emission line properties. I'll finish with a summary of the prospects for quasar/AGN science from the Legacy Survey of Space and Time (LSST) that will soon begin at the Vera Rubin Observatory. LSST will leverage deep imaging, wide area, the time domain, and machine learning algorithms to discover on order of 100 million AGNs and quasars. I'll discuss how those interested can get involved (in either AGN science or LSST in general).

0130 CBEC Department of Astronomy astronomy@osu.edu America/New_York public
Description

A Modern View of Quasars in the LSST Era

Gordon Richards - Drexel University

A modern view of quasars sees them as diverse “processes” as opposed to the traditional view as more static “things”. Such a picture is important both to understanding quasars themselves and also the role that they play in the evolution of galaxies. I will present some broad perspectives on the relationship between quasar physics and their spectral energy distributions (SED) from the X-ray to radio. In particular, I will discuss connections between the accretion rate, black hole mass, optical/UV continuum, radio loudness, broad absorption line properties, and emission line properties. I'll finish with a summary of the prospects for quasar/AGN science from the Legacy Survey of Space and Time (LSST) that will soon begin at the Vera Rubin Observatory. LSST will leverage deep imaging, wide area, the time domain, and machine learning algorithms to discover on order of 100 million AGNs and quasars. I'll discuss how those interested can get involved (in either AGN science or LSST in general).