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Reply To: Preparing for the next eruption of T CrB

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12 May 2026 at 12:37 pm #639340
Robin Leadbeater
Participant

Hi Hugh,

It is complicated by the fact that the hot continuum spectrum of the accreting material is superimposed on the cool star spectrum but I have seen signs that the best fit cool star spectral type once the hot component continuum is removed may vary from M3III in high activity to M4III in low activity based on TiO band depths. See attached slides. (Here I was removing the cool star component to try to see the underlying spectrum of the accreting material)

Cheers
Robin

Attachments:

  1. SDG_20250812_TCrB.pdf