First Astronomical Application of a Cryogenic Transition Edge Sensor Spectrophotometer

  • Romani R
  • Miller A
  • Cabrera B
  • et al.
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Abstract

We report on the first astronomical observations with a photon-counting pixel detector that provides arrival time (δt = 100 ns) and energy (δEγ ≤ 0.15 eV) resolved measurements from the near-IR through the near UV. Our test observations were performed by coupling this transition edge sensor device to a 0.6 m telescope; we have obtained the first simultaneous optical near-IR phase-resolved spectra of the Crab pulsar. A varying infrared turnover gives evidence of self-absorption in the pulsar plasma. The potential of such detectors in imaging arrays from a space platform is briefly described.

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Romani, R. W., Miller, A. J., Cabrera, B., Figueroa-Feliciano, E., & Nam, S. W. (1999). First Astronomical Application of a Cryogenic Transition Edge Sensor Spectrophotometer. The Astrophysical Journal, 521(2), L153–L156. https://doi.org/10.1086/312202

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