Physics Colloquium: AGN Narrow-Line Region Kinematics

Travis Fischer of NASA's Goddard Space Flight Center will present a physics colloquium, "AGN Narrow-Line Region Kinematics : Dissecting Spatially Resolved AGN Feedback," at 4 p.m. today, Feb. 9, in the Paul Sharrah Lecture Hall, PHYS 133.

Refreshments will be served in PHYS 134 beforehand at 3:30 p.m.

Active galactic nuclei, or AGN, are supermassive black holes in the centers of galaxies that actively gain mass from the surrounding matter of accretion disks. This accretion process in turn generates feedback in the form of massive outflows of ionized gas, which are thought to play a pivotal role in large scale structure formation in the early Universe and self-regulation of SMBH and galactic bulge growth. Feedback is currently used to explain the MBH-σ∗ relation, which relates the SMBH mass and the stellar velocity dispersion of the bulge, where evacuation of gas from the bulge quenches star formation and halts the growth of both the SMBH and bulge.

Fischer will discuss ongoing investigations on the properties of AGN feedback in order to determine the validity of this explanation through analysis of the frequency and impact of mass outflows from AGN.

 

Contacts

Paula Denise Prescott, fiscal support specialist
Department of Physics
479-575-2506, prescott@uark.edu

Headlines

Judges to Retire as Vice Provost for Distance Education

An internal search committee has been formed to help select a replacement for Don Judges, vice provost for distance education.

Bumpers College Students Earn Arkansas Agricultural Consultants Scholarships

Crop science majors Neal Benson, Bairek Bush, Charlie Farr and Matthew Woolard have earned scholarships from the Arkansas Agricultural Consultants Association.

Air Force ROTC Commissions Four Lieutenants

The U.S. Air Force ROTC held a commissioning ceremony for its newest lieutenants: Evan Johnson, Logan Romero, Brisa Bartczak, and Jonathan Waller.

Interested in Learning Arabic This Summer?

Elementary Arabic 1 (ARAB1003) will be offered during the first summer session, Monday-Friday from 11 a.m. to 12:30 p.m.

Volunteers Needed for Infant Feeding Study! Easy, Free Food, and $100

For participation, participants will receive free baby food (broccoli or carrots) for the Intervention week. Additionally, participants will receive $100 at the end of the study.

Newswire Daily