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NASA Goddard Space Flight CenterAnna Trindade FalcãoMultiwavelength astrophysicist · Black-hole winds · AGN feedback
Artist’s depiction of two active black holes in merging galaxies, each surrounded by a hot accretion disk and launching a narrow jet. The illustration represents a candidate dual-AGN interpretation; it is not an observation of MCG-03-34-64.
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Research theme

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.

Chandra · Hubble · VLACandidate Dual AGNImage source: Artist’s concept · NASA, ESA, Joseph Olmsted (STScI) ↗Supporting publication ↗

Scientific questions

Questions guiding this work

  1. 01

    Do independent X-ray, optical, and radio structures support two accreting black holes, or can one active nucleus plus shocked circumnuclear gas explain them?

  2. 02

    How precisely do the compact centroids and separations agree across wavebands?

  3. 03

    What can close nuclear pairs reveal about black-hole growth during galaxy interactions?

Research connections

Publications and related work

featured release

Close Pair of Accreting SMBHs

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Research connections

Related research directions

Compton-Thick AGN

I use resolved Fe K emission and broadband X-ray spectroscopy to probe heavily obscured accretion and circumnuclear structure.

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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.

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