The work of Professor Krawczynski’s group includes the development of the balloon-borne XL-Calibur scattering X-ray polarimeter scheduled for launch in Summer 2022 from Kiruna (Sweden). The group develops furthermore room temperature and cryogenic X-ray and gamma-ray detectors.The group is a science collaborator of the Imaging X-ray Polarimetry Explorer (IXPE), and uses the Chandra, Swift, NuSTAR, and Fermi X-ray and gamma-ray satellites. The activities of the group include observational and theoretical work focussing on magnetars, stellar mass and supermassive black holes, blazars, and gravitationally lensed quasars.
Click here for a list of publications.
Detector Development:
- Room temperature semiconductor detectors.
- Cryogenic X-ray and Gamma-ray detectors.
- Development of 511-CAM, a focal plane detector for a pointed 511 keV gamma-ray telescope.
Projects/Experiments:
- Hard X-ray polarimetry with X-Calibur
- Hard X-ray polarimetry with XL-Calibur,
- Dilution Refrigerator- Transition Edge Sensor (Dr. Tes) Test Flight
- Imaging X-ray Polarimetry Explorer (IXPE)
Astrophysics (Observations and Theory):
- Blazar modeling.
- General relativistic ray tracing.
- General Relativistic Raytracing of two-temperature General Relativistic Radiation Magnetohydrodynamic (2tGRRMHD) simulations of mass accreting black holes.
- The Magnetar X-ray fitting model.
- The kerrC X-ray fitting model.
- Gravitationally lensed quasars.
- Tests of Lorentz Invariance and CP violation.
Collaborators:
- Professor Böttcher (North-West. Univ., South Africa)
- Professor Buckley (WUSTL)
- Professor Chartas (CoC).
- Professor Errando (WUSTL).
- Dr. García (Caltech).
- de Geronimo (de Geronimo).
- Guarino (Guarino Engineering Services).
- Professor Kislat (UNH).
- Dr. Kitaguchi and Professor T. Tamagawa (Riken).
- Dr. Liska (Harvard).
- Professor Matsumoto (Osaka Univ.).
- Dr. Okajima (GSFC).
- Professor Pearce (KTH).
- Professor Rauch (WUSTL).
- Professor Takahashi (Hiroshima Univ.).
- Professor Alexander Tchekhovskoy (Northwestern).
- Dr. Ullom (NIST).
- WASP team (WFF).
