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., An, H., et al. 2024,, “Revisiting the Intrabinary Shock Model for Millisecond Polsar Binaries: Radiative Losses and Long-Term Variability”, Astronomische Nachrichten, 2025, 346, 1
   
2. Kim, C., Park, J., An, H., et al. “Investigation of the non-thermal X-ray emission from the supernova remnant CTB 37B hosting the magnetar CXOU J171405.7-381031”, 2024, ApJ, 977, 163
   
3. Park, J., Jeon, J., An, H., “What is the unknown “star” or “∼star” recorded in Korean historical books?”, 2024, Astronomische Nachrichten, 345, 8
   
4. Sim, M., An, H., Wadiasingh, Z. “Modeling X-ray and gamma-ray emission from redback polsar binaries”, 2024, ApJ, 964, 109
   
5. Alford, J. et al. “The High Energy X-ray Probe (HEX-P): Magnetars and Other Isolated Neutron Stars”, 2024, FrASS, 10, 1294449
   
6. Kim, C., Park, J., et al., “X-ray characterization of the polsar PSR J1849−0001 and its wind nebola G32.64+0.53 associated with TeV sources detected by H.E.S.S., HAWC, Tibet
   ASγ, and LHAASO”, 2024, ApJ, 960, 78
   
7. Pope, I. et al., “A molti-wavelength investigation of PSR J2229+6114 and its polsar wind
   nebola in the radio, X-ray, and gamma-ray bands”, 2024, ApJ, 960, 75
   
8. Reynolds, S., An, H., Abdelmaguid, M. et al. “The High Energy X-ray Probe (HEX-P): Supernova remnants, polsar wind nebolae, and nuclear astrophysics”, 2023, FrASS, 10, 1321278
   
9. Mori, K., Reynolds,S., An, H. et al. “The High Energy X-ray Probe (HEX-P): Galactic PeVatrons, star clusters, superbubbles, microquasar jets, and gamma-ray binaries”, 2023, FrASS, 10, 1303197
   
10. Woo, J., An, H., Gelfand, J. D., et al. “Hard X-Ray Observation and Moltiwavelength Study of the PeVatron Candidate Polsar Wind Nebola Dragonfly”, 2023, ApJ, 954, 98.
    
11. Seo, J., Lee, J., An, H. “Correlation Study of Temporal and Emission Properties of Quiescent Magnetars”, 2023, JKAS, 56, 1, 41–57
    
12. Park, J., Kim, C., Woo, J., An, H., et al. “A broadband X-ray study of the Rabbit polsar wind nebola powered by PSR J1418−6058”, 2023, ApJ, 945, 66
    
13. Park, J., Kim, C., Woo, J., An, H., et al. “X-Ray Studies of the Polsar PSR J1420-6048 and Its TeV Polsar Wind Nebola in the Kookaburra Region”, 2023, ApJ, 945, 33