Outflow driving mechanisms and multi-phase structure in galactic outflows and the circumgalactic medium,
High-z quasars, supermassive black hole growth, quasar cosmic environments,
Numerical implementations of AGN Feedback and black hole accretion into (radiation-)hydrodynamic galaxy formation codes (AREPO, GADGET, RAMSES)
Code development & Simulations
BOLA
I am currently developing BOLA (Boundary Layer for AGN), an AREPO module that performs black hole accretion and AGN feedback via jets/winds by means of a moving boundary surface,
Documentation for BOLA (Boundary Layer for AGN) can be found here,
Some animations of BOLA's energy-driven outflows (LHS: density, RHS: temperature). A proper section with various animations is in the making...
The SPICE simulations
I was involved in the development of the SPICE suite of radiation-hydrodynamic simulations (led by Aniket Bhagwat @MPA, Garching). Aniket has produced some spectacular visualisations, e.g. the temperature, ionising flux and neutral fraction evolution in one of the SPICE boxes:
Upcoming Talks
July 2024: Review Talk on AGN feedback @Symposium S1, EAS Meeting (Padova, Italy)
July 2024: Invited Talk @Symposium S12, EAS Meeting (Padova, Italy)
July 2024: Contributed Talk @Symposium SS1, EAS Meeting (Padova, Italy)
October 2024: Computational Galaxy Formation (Ringberg Castle, Germany)
Selected Publications
Tiago Costa:
The host dark matter haloes of the first quasars, MNRAS (2024), (pdf)
Tiago Costa, Fabrizio Arrigoni Battaia, Emanuele P. Farina, Laura C. Keating, Joakim Rosdahl & Taysun Kimm:
AGN-driven outflows and the formation of Ly-alpha nebulae around high-z quasars, MNRAS (2022), (pdf, doi)
Tiago Costa, Joakim Rosdahl, Debora Sijacki & Martin Haehnelt:
Quenching star formation with quasar outflows launched by trapped IR radiation, MNRAS (2018) (pdf, doi)
Tiago Costa, Debora Sijacki & Martin Haehnelt:
Feedback from active galactic nuclei: energy- versus momentum-driving, MNRAS (2014) (pdf, doi)
Tiago Costa, Debora Sijacki, Michele Trenti & Martin Haehnelt:
The environment of bright QSOs at z = 6: star-forming galaxies and X-ray emission, MNRAS (2014) (pdf, doi)
International Collaborations
Synergies between theory and observations:
Accretion Alliance, Durham-Newcastle collaborations on BH growth and AGN feedback,
Quasar Feedback Survey, a systematic multi-wavelength study of low-redshift (z<0.2) Type 1 and Type 2 quasars (core member),
I frequently speak on topics ranging from the solar system to cosmology to primary and high-school audiences. Example talks include:
"O Sistema Solar e o Universo/ The Solar System and the Universe", GS Philipp-Weiß, Fürstenfeldbruck, Germany (2019)
"Os buracos negros no centro das galáxias/ The black holes of galactic centres", Escola Raul Proença, Caldas da Rainha, Portugal (2019)
"Breve História do Universo/ Short History of the Universe", Escola D. Pedro V, Lisboa, Portugal (2014, 2015)
You are welcome to contact me via email if you would like me to deliver a talk (in English, German or Portuguese) on these and other topics at your school.