SC13 Home > SC13 Schedule > SC13 Presentation - Parallel Computing In High Energy Astrophysics: Combining Microlensing and Black Hole Ray-Tracing

SCHEDULE: NOV 16-22, 2013

When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.

Parallel Computing In High Energy Astrophysics: Combining Microlensing and Black Hole Ray-Tracing

SESSION: Research Poster Reception

EVENT TYPE: Posters, Electronic Posters, and Education Posters

TIME: 5:15PM - 7:00PM

AUTHOR(S):Bin Chen, Xinyu Dai, Eddie Baron, Ronald Kantowski

ROOM:Mile High Pre-Function

ABSTRACT:
Gravitational lensing is an important probe in astrophysics. In particular, quasar microlensing strongly constrains the geometry of the high-energy X-ray emitting regions of active galactic nuclei (AGNs). The X-ray emission of a microlensed quasar is lensed by both the background supermassive black hole powering the AGN and the thousands (to millions) of random stars in the foreground lens galaxy. Ray-tracing and parallel computing are needed to compute the image of the accretion disk lensed by a Kerr black hole and the microlensing magnification pattern caused by foreground random stars. We present two parallel ray-tracing codes recently developed by our group to study strong lensing of AGN X-ray emission by Kerr black holes and microlensing by foreground lens galaxies, and a numerical scheme to combine microlensing with Kerr black hole lensing. We discuss the unique constraints on AGN X-ray emission sizes obtained by our computer programs.

Chair/Author Details:

Bin Chen - University of Oklahoma

Xinyu Dai - University of Oklahoma

Eddie Baron - University of Oklahoma

Ronald Kantowski - University of Oklahoma

Add to iCal  Click here to download .ics calendar file

Add to Outlook  Click here to download .vcs calendar file

Add to Google Calendarss  Click here to add event to your Google Calendar