Skip to main content
NASA Goddard Space Flight CenterAnna Trindade FalcãoMultiwavelength astrophysicist · Black-hole winds · AGN feedback
Conceptual log-energy diagram of active-galaxy X-ray spectral components, showing an absorbed primary continuum, soft excess and soft X-ray emission, warm-absorber imprints, Fe K-alpha emission near 6.4 keV, and a Compton-reflection hump at tens of keV. The curves are illustrative, not measured data or a fitted source spectrum.
← All research themes

Research theme

Spectroscopy and Scientific Analysis Tools

I develop reproducible spatially resolved X-ray spectroscopy workflows for calibration, extraction, and spectral modeling that support, but do not by themselves validate, physical inferences about faint extended gas, ionization, and energetics.

Chandra · Hubble · XMM-Newton · NuSTARSpectroscopy & ToolsSupporting publication ↗

Scientific questions

Questions guiding this work

  1. 01

    How can calibrated, spatially resolved spectroscopy separate faint extended emission from bright nuclear emission before testing whether photoionization or outflow models describe it?

  2. 02

    Which analysis strategies developed for obscured AGN can be extended to Type 1 sources, where direct nuclear emission is much more prominent?

  3. 03

    How can instrumental response, multi-visit reduction, spectral modeling, and validation be documented reproducibly while keeping successful software execution distinct from scientific acceptance?