우리 연구실에서는 우주에서 발생하는 고에너지 현상을 연구한다. 고에너지 현상은 밀집성 또는 그 주변에서 많이 발생하는데, 따라서 연구 대상은 중성자별과 거대질량 블랙홀이다. 주로 활용하는 실험기기는 X선 및 감마선 우주 망원경인 NuSTAR, Chandra, XMM-Newton, Swift, 그리고 Fermi Large Telescope Array(LAT)이며 필요에 따라서 전파, 적외선, 그리고 가시광성 망원경을 활용하기도 한다. 이 망원경들을 이용하여 밀집 천체를 관측, 데이터를 분석하고, 그 결과를 복사 모형을 이용하여 해석하고 이를 통하여 중성자별 및 거대질량 블랙홀의 특성 및 그 주위에서 발생하는 입자의 가속현상을 이해한다.

We study high-energy phenomena in the Universe. Because high-energy radiation is often observed in astrophysical compact objects (neutron stars and black holes) implying existence of very energetic particles, compact objects are main targets for our research. We observe the targets using high-energy telescopes such as NuSTAR, Chandra, XMM-Newton, Swift, and Fermi LAT. When needed, we also use radio, IR and optical telescopes. The observational data are analyzed and interpreted with emission models. The modeling then tells us about the compact objects and particle acceleration in those objects.

• 대상천체: Magnetars, Pulsar Binaries, Pulsar Wind Nebula, Supernova Remnants, Blazars
• 관측자료
  적외선: Herschel
  광학: Swift/UVOT
  X선: Swift/XRT, Chandra, XMM-Newton, NuSTAR
  감마선: Fermi LAT
• 이론모형: 펄사쌍성 광도곡선 모형, Synchro-Compton 광대역 복사모형

1. Park, J., Kim, C., Woo, J., An, H., et al. “A broadband X-ray study of the Rabbit pulsar wind nebula powered by PSR J1418−6058”, 2023, ApJ, in press
2. Park, J., Kim, C., Woo, J., An, H., et al. “X-Ray Studies of the Pulsar PSR J1420-6048 and Its TeV Pulsar Wind Nebula in the Kookaburra Region”, 2023, ApJ in press
3. Park, J., Jeon, J., and An, H. “A list of guest-star records in Korean history and their possible counterparts”, 2022, AN, 343, 9
4. Kim, J., An, H., and Mori, K., “Investigation of the broadband emission of the gamma-ray binary HESS J0632+057 using an intrabinary shock model”, 2022 ApJ, 936, 32
5. Burgess, D. et al. “The Eel Pulsar Wind Nebula: a PeVatron-Candidate Origin for HAWC J1826−128 and HESS J1826−130”, 2022, ApJ, 930, 148
6. An, H. “Gamma-ray orbital modulation of the transitioning millisecond pulsar binary XSS J12270-4859“, 2022, ApJ, 924, 91
7. Tokayer, Y. M., An, H., Halpern, J. P., et al. “Multi-Wavelength Observation Campaign of the TeV Gamma-Ray Binary HESS J0632+057 with NuSTAR, VERITAS, MDM, and Swift”, 2021, ApJ, 923, 17
8. Yoo, S., Lee, S., Kim, S., and An, H. “Investigation of the jets of the blazar 3C 279 with KVN 29–129GHz observations”, 2021, JASS, 38, 4
9. Kandel, D., Romani R. W., and An, H. “XMM-Newton observes the IntraBinary Shock of PSR J1959+2048”, 2021, ApJL, 917, L13
10. Rho, J.. An, H, et al. “Near-infrared and optical observations of type IC SN 2020oi and broad-lined IC 2020bvc: Carbon Monoxide, Dust, and High-Velocity Supernova Ejecta”, 2021, ApJ, 908, 232
11. Kim, M. and An, H. “X-ray properties of the pulsar PSR J0205+6449 in 3C 58”, 2021, JKAS, 54, 1