Piero Madau

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Piero Madau (born before 1983) is an Italian astrophysicist.

Life

Madau received his bachelor's degree from the University of Florence in 1983 and received his PhD in astrophysics from the International School of Advanced Studies (SISSA) in Trieste in 1987 . As a post-doctoral student he was at Caltech until 1989 and an Allan C. Davis Fellow at Johns Hopkins University until 1992 . From 1992 to 1999 he was a member of the Space Telescope Institute in Baltimore , the Institute for Astronomy at Cambridge University (1999/2000 Assistant Director of Research) and has been Professor at the University of California, Santa Cruz (UCSC) and Director of the Next Generation since 2000 Telescope Science Institute (NEXSI). He has been a Distinguished Professor since 2010.

He was awarded a Humboldt Research Prize in 2006 at the Max Planck Institute for Astrophysics in Garching and in 2014 at the ETH Zurich (Schrödinger visiting professor at the Pauli Center). In 2009 he was Sackler Visiting Professor at Cambridge.

In 1994 he received the Aura Science Prize. From 2003 to 2006 he was on the council of the Kavli Institute.

In 2014 he received the Dannie Heineman Prize for Astrophysics for fundamental contributions to research into the epoch of the formation of the first stars ( first light ) in the universe, the ionization and reheating of the interstellar gas in this epoch, and the formation and evolution of Galaxies (laudatory speech).

plant

At the end of the 1990s, he used Hubble telescope data (Hubble Deep Field) to develop diagrams of the rate of star formation in galaxies over the course of the history of the universe.

He developed detailed models of the absorption of light from early stars in clouds of neutral hydrogen gas on its way to Earth, which turned out to be important for the systematic search for it (Lyman dropout technique for studying early galaxies). In the 1990s he and Martin Rees suggested using the hydrogen line ( HI line ) in radio astronomy to map the end of the dark period of cosmology with the formation of the first stars (beginning of the reionization epoch ).

He also dealt with the evolution of black holes in galaxy centers. Together with Rees, he suspects the origins of the supermassive black holes in massive stars of the first generation (Population III). Most recently, he has worked on a detailed numerical simulation of the dark matter halo around the Milky Way (Via Lactea II N-body simulation) with the proof that complex substructures in the distribution of dark matter must arise when galaxies collide and merge.

Fonts

In addition to the writings mentioned in the footnotes:

  • with M. Kuhlen: The first miniquasar, Monthly Notices Roy. Astron. Soc., 363, 2005, 1069
  • with MJ Rees, M. Volonteri, F. Haardt, SP Oh: Early reionization by miniquasars, Astroph. J. 604, 2004, 484
  • with Joseph Silk : Population III and near infrared background excess, Monthly Notices Roy. Astron. Soc., 359, 2005, L 37
  • Astronomy: trouble at first light, Nature, 440, 2006, 1002
  • with J. Diemand, M. Kuhnen: Dark matter substructure and gamma ray annihilation in the milky way halo, Astroph. J. 657, 2007, 262
  • with A. Sesana, F. Haardt: Hypervelocity stars and the environment of Sgr A *, Monthly Notices Roy. Astron. Soc., 379, 2007, L 45
  • with L. Mayer, S. Kazantzidis, M. Colpi, T. Quinn, J. Wadsley: The birth of a supermassive black hole binary in a gas rich galaxy merger, Science, 316, 2006, 1874
  • with M. Volonteri, E. Quataert, MJ Rees: The distribution and cosmic evolution of massive black hole spins, Astroph. J. 620, 2005, 69
  • with Mauro Giavilisco a. a .: The Great Observatories Origins Deep Survey: initial results from optical and near-infrared imaging, The Astrophysical Journal Letters, 600, 2004, L 93, abstract
  • with Norman Grogin a. a .: Candels: The cosmic assembly near-infrared deep extragalactic legacy survey, The Astrophysical Journal Supplement Series, 197, 2011, 35

Web links

Individual evidence

  1. ↑ Piero Madau, Henry C Ferguson, Mark E Dickinson, Mauro Giavalisco, Charles C Steidel, Andrew Fruchter, High-redshift galaxies in the Hubble Deep Field: color selection and star formation history to , Monthly Notices of the Royal Astronomical Society, 283, 1996, 1388-1404, abstract
  2. ^ Piero Madau, Lucia Pozzetti, Mark Dickinson, The star formation history of field galaxies, Astroph. J. 498, 1998, 106
  3. ^ Madau, Radiative transfer in a clumpy universe: The colors of high-redshift galaxies, Astroph. J., 441, 1995, 18-24
  4. ↑ Francesco Haardt, Madau, Radiative Transfer in a Clumpy Universe: II. The Ultraviolet Extragalactic Background, Astroph. J., 461, 1996, 20
  5. ↑ Madau, Haardt, Rees, Radiative transfer in a clumpy universe. III. The nature of cosmological ionizing sources, Astroph. J., 514, 1999, 648
  6. ↑ Piero Madau, Avery Meiksin, Martin J. Rees, 21 Centimeter Tomography of the Intergalactic Medium at High Redshift, Astroph. J., 475, 1997, 429
  7. ↑ Paolo Tozzi, Piero Madau, Avery Meiksin, Martin J. Rees, Radio Signatures of HI at High Redshift: Mapping the End of the Dark Ages, Astroph. J., 528, 2000, p. 597
  8. ^ PA Shaver, RA Windhorst, P. Madau, AG De Bruyn, Can the Reionization Epoch Be Detected as a Global Signature in the Cosmic Background?, Preprint 1999, Arxiv
  9. ↑ Marta Volonteri, Francesco Haardt, Piero Madau, The assembly and merging history of supermassive black holes in hierarchical models of galaxy formation, Astroph J., 559, 2003, 559
  10. ↑ Madau, Rees, Massive black holes as population III remnants, The Astrophysical Journal Letters, 551, 2001, L27
  11. ↑ J Diemand, M Kuhlen, P Madau, M Zemp, B Moore, D Potter, J Stadel, Clumps and streams in the local dark matter distribution, Nature, 454, 2008, 735-738
personal data
SURNAME Madau, Piero
BRIEF DESCRIPTION Italian astrophysicist
DATE OF BIRTH before 1983