Seminar Title |
The Very-High-Energy Gamma-Ray Sky with HAWC |
|
|
Speaker: |
Dr. ZHOU Hao |
|
|
Affiliation: |
(Los Alamos National Laboratory;HAWCGalactic Science Coordinator) |
|
|
When |
Wednesday morning, Nov.28, 10:00 a.m. |
|
|
Where: |
Room 212, Astronomy Building |
|
Welcome to Attend |
|
|
( PMO Academic Committee & Academic Circulating committee) |
|
Abstract:The High Altitude Water Cherenkov (HAWC) Observatory, located in central Mexico at 4100 m above sea level, is sensitive to gamma rays from a few hundreds GeV to above 100 TeV. HAWC has an instantaneous field of view of 2 steradians and continuously observes two third of the sky each day. A search for steady sources has been performed and about 40 sources are identified. Most of the identified sources are Galactic sources, however, two extragalactic blazars Mrk 421 and Mrk 501 are detected at high significance. Thanks to its wide field of view, HAWC is also sensitive to extended structures such as nearby pulsar wind nebulae, Fermi bubbles and diffusion emission. The continuous time coverage allows the search of time variability and transient events, to send alerts or follow-up on multi-messenger events such as LIGO gravitational waves or IceCube neutrinos. I will present recent highlights from the HAWC observatory.
About The Speaker: Dr. Zhou's background is in particle astrophysics. He is currently interested in the study of TeV gamma rays to solve the century-old puzzle of the origin of galactic cosmic rays. Dr. Zhou received his bachelor degree from Harbin Institute of Technology and his Ph.D. degree from Michigan Technological University. Since 2016, he has been a postdoctoral associate at Los Alamos National Laboratory. Dr. Zhou is a member of the High Altitude Water Cherenkov (HAWC) collaboration since 2010, and he is currently the Galactic science coordinator of HAWC. He is involved in the calibration, event reconstruction, and data analysis of the Galactic TeV gamma ray sources for the HAWC collaboration.