Fabio Pacucci
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Fabio Pacucci is an Italian theoretical astrophysicist and science educator, currently at Harvard University and at the
Smithsonian Astrophysical Observatory The Smithsonian Astrophysical Observatory (SAO) is a research institute of the Smithsonian Institution, concentrating on astrophysical studies including galactic and extragalactic astronomy, cosmology, solar, earth and planetary sciences, the ...
. He is widely known for his contributions to the study of
black hole A black hole is a region of spacetime where gravitation, gravity is so strong that nothing, including light or other Electromagnetic radiation, electromagnetic waves, has enough energy to escape it. The theory of general relativity predicts t ...
s, in particular the first population of black holes formed in the Universe and high redshift
quasar A quasar is an extremely Luminosity, luminous active galactic nucleus (AGN). It is pronounced , and sometimes known as a quasi-stellar object, abbreviated QSO. This emission from a galaxy nucleus is powered by a supermassive black hole with a m ...
s. He discovered the only two candidate
direct collapse black hole Direct collapse black holes are high-mass black hole seeds, putatively formed within the redshift range 15, when the Universe was about 100-250 million years old. Unlike seeds formed from the first population of stars (also known as St ...
s known so far, and he was in the team that discovered the farthest lensed quasar known. Pacucci is also a science educator, engaged in public talks on astronomy and science in general. Since 2018 he is a collaborator of TED in developing educational videos about science. The four videos released so far were watched by millions of people worldwide and translated into 25 languages.


Education and career

Fabio Pacucci was born in 1988 in
Apulia it, Pugliese , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , demographic ...
, a region in the southern part of Italy. He received his B.Sc. in Physics and his M.Sc. in Astronomy and Astrophysics at the Sapienza University of Rome, and his Ph.D. in Physics in 2016 at the
Scuola Normale Superiore The Scuola Normale Superiore in Pisa (commonly known in Italy as "la Normale") is a public university in Pisa and Florence, Tuscany, Italy, currently attended by about 600 undergraduate and postgraduate (PhD) students. It was founded in 1810 wi ...
in Pisa (Italy). He then moved to Yale University in the United States as a postdoctoral researcher, before spending some time as a NOVA Fellow at the
Kapteyn Astronomical Institute The Kapteyn Astronomical Institute is the department of astronomy of the University of Groningen The University of Groningen (abbreviated as UG; nl, Rijksuniversiteit Groningen, abbreviated as RUG) is a Public university#Continental Europe, pu ...
(Netherlands). He is currently the Clay and BHI Fellow at the Center for Astrophysics Harvard & Smithsonian.


Prizes and fellowships

Fabio Pacucci received several prizes for his work on black holes, including: * 2019: Clay Fellowship at the Smithsonian Astrophysical Observatory * 2017: “IAU Ph.D.” Prize – International Astronomical Union prize for his Ph.D. Thesis * 2017: “Livio Gratton” Prize – Prize for the best Ph.D. thesis in astronomy in Italy (period 2014-2016) * 2012: “Enrico Persico” Prize – Prize from the Accademia Nazionale dei Lincei


Scientific contributions

Fabio Pacucci is known for his contributions to theoretical astrophysics, specifically to the study of black holes and the
early Universe The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with ...
. He also published some papers on the study of dark matter and on planetary dynamics. His main field of study is the formation, growth and observational properties of the first population of black holes formed in the Universe. In 2015 he developed the first code to accurately predict the observational properties of high redshift black hole seeds, named GEMS (Growth of Early Massive Seeds). With this tool, he led the team that discovered the first, and thus far only, direct collapse black hole candidates, using data from the Hubble Space Telescope, the Chandra X-ray Observatory and the
Spitzer Space Telescope The Spitzer Space Telescope, formerly the Space Infrared Telescope Facility (SIRTF), was an infrared space telescope launched in 2003. Operations ended on 30 January 2020. Spitzer was the third space telescope dedicated to infrared astronomy, f ...
. In 2019 he participated in the discovery of the first strongly lensed quasar in the epoch of reionization, also known as “the brightest quasar in the Universe”, led by
Xiaohui Fan Xiaohui Fan (born 9 December 1971 in Beijing, China) is an American astronomer, and full professor at University of Arizona. He is widely known for his studies on quasars, extremely bright supermassive black holes, detected primarily at high reds ...
. Pacucci described the theoretical consequences of this detection, and the possibility of an undetected population of quasars, in a study with Avi Loeb.


Science education

Fabio Pacucci is also active in the field of science education and outreach, where his most notable long-term collaboration is with TED. He acted as educator for four educational videos on topics ranging from black holes, to Hawking radiation to the three-body problem. These videos were watched by millions of people around the world and translated into 25 languages. In an interview with the Harvard Gazette, Pacucci commented ''“By explaining, I understand better. Sometimes simple ideas are not so simple, and they spark new solutions for old problems.”''


References


External links


Professional website

Harvard University profile
{{DEFAULTSORT:Pacucci, Fabio Italian astrophysicists 21st-century Italian astronomers Harvard–Smithsonian Center for Astrophysics people 1988 births Living people