[행사/세미나] [Colloquium] Sep 13(Wed.) Studying Gamma-Ray Binary Systems with HAWC
- 물리학과
- 조회수1695
- 2023-09-06
이번 학기 두 번째 콜로퀴움은 우리 물리학과 노창동 교수님을 모시고 콜로퀴움을 개최하오니, 학과 구성원 여러분의 많은 참여를 부탁 드립니다.
아 래
1. Title: Studying Gamma-Ray Binary Systems with HAWC
2. Speaker: 노 창 동 교수님 (성균관대학교 물리학과)
3. Date & Time: Sep 13(Wed.) 2023. 4:30 PM
4. Place: Natural Science 1, Room No. 31214
5. Abstract: Astrophysical sources of very-high-energy (VHE) gamma-ray radiation provide unique information about astrophysical particle acceleration and cosmic ray production. In particular, compact binary systems, composed of a compact object (a neutron star or black hole) in orbit with a massive stellar companion, provide an ideal environment for VHE gamma-ray production. They are not only powerful particle accelerators, but they are excellent astrophysical laboratories.
However, only a handful of binary systems have ever been observed in VHE gamma rays. Partly, this is because VHE gamma-ray binaries appear to be very rare, and part is due to observational bias. Most instruments operating at TeV are pointed and must allocate time to observing many kinds of objects. The High Altitude Water Cherenkov (HAWC) Observatory, on the other hand, has high uptime (duty cycle >95%) and a wide field of view (2 sr), making it well-suited for observing transient and time-varying sources such as binaries.
In this talk, we present the most up-to-date results on three distinct gamma-ray binary systems, namely, SS 433, LS 5039, and V4641 Sgr, produced using 1910 days of HAWC data.