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NASA Goddard Space Flight CenterAnna Trindade FalcãoMultiwavelength astrophysicist · Black-hole winds · AGN feedback
Artist’s impression of an active galaxy with luminous material and opposing red and blue outflow structures extending from its central region.
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Research theme

AGN–Host-Galaxy Interaction

I investigate how observations of ionized and X-ray-emitting gas test where accretion-driven winds may heat, ionize, or redistribute material from galactic nuclei into their hosts.

Chandra · HubbleAGN–Host-Galaxy InteractionImage source: Artist’s impression · ESA/AOES Medialab ↗Supporting publication ↗

Scientific questions

Questions guiding this work

  1. 01

    Where does AGN activity heat, ionize, or displace gas in the host galaxy?

  2. 02

    Which properties of the host regulate whether a nuclear wind becomes galaxy-scale feedback?

  3. 03

    How do accretion-driven structures remain observable from parsec to kiloparsec distances?

Research connections

Publications and related work

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Hot X-Ray Winds

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Research connections

Related research directions

AGN Feedback

I investigate how observations of X-ray-emitting and warm ionized gas, together with model-dependent energetics, test where black-hole winds may interact with and transfer energy or momentum to their host galaxies.

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Candidate Dual Active Nuclei

I investigate how galaxy interactions bring accreting supermassive black holes into close pairs, using multiwavelength observations to test candidate dual nuclei against alternatives such as one active nucleus plus shocked circumnuclear gas.

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Multiphase Outflows

I compare X-ray, molecular, and warm ionized gas observations to test whether spatially associated phases trace related outflow structures and how model-dependent energetics constrain possible feedback.

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