vicgrinberg, 26 days ago (edited 26 days ago)

#Papertime today: "Long term variability of Cygnus X-1. VIII. A spectral-timing look at low energies with NICER" by Koenig et al.

http://arxiv.org/abs/2405.07754

What did we do & why is this interesting? Deep technical dive ahead!

We learn about accreting #BlackHoles studying their spectra & short-term (~millisecond) variability, called timing. However, individually, both approaches leave us with a lot of puzzles - so we try to combine them in spectral-timing.

1/6

#astrodon #XraysAreTheBestRays