John F. Hawley

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John Frederick Hawley (born August 23, 1958 in Annapolis , Maryland , USA) is an American astrophysicist .

Hawley received his PhD from the University of Illinois in 1984. From 1984 to 1987 he was a Bantrell Fellow at Caltech . From 1987 he was an assistant professor at the University of Virginia , where he became an associate professor in 1993 and a professor of astronomy in 1999. From 2006 he headed the astronomy faculty. Since he has been Associate Dean for the Sciences .

He is particularly concerned with accretion disks in astrophysics and their numerical modeling.

With Steven A. Balbus in 1991 he developed the theory of magnetorotation instability (MRI) or Balbus-Hawley instability from the basic equations of magnetohydrodynamics . It is important for accretion disks in astrophysics, where it helps explain the formation of stars and black holes. According to it, even the smallest magnetization of the gas leads to the formation of turbulence, which leads to the transmission of angular momentum to the outside and to the sinking of matter to the central body.

In 1993 he received the Helen B. Warner Prize and in 2013 with Balbus the Shaw Prize in Astronomy.

Fonts

  • with Balbus Instability, Turbulence, and Enhanced Transport in Accretion Disks , Reviews of Modern Physics, Volume 70, 1998, pp. 1-53
  • Keplerian Complexity: Numerical Simulations of Accretion Disk Transport , Science, Volume 269, 1995, p. 1365
  • with Katherine A. Holcomb Foundations of modern cosmology , 2nd edition, Oxford University Press 2005

Web links

Individual evidence

  1. ↑ Shaw Prize - Biographer. Notices
  2. ^ Meredith Jung-En Woo: John Hawley Appointed as Associate Dean for the Sciences. (No longer available online.) University of Virginia, archived from the original on May 30, 2013 .;
  3. ^ John Hawley: Associate Dean for the Sciences and Professor of Astronomy. Retrieved January 31, 2018 .
  4. ^ Balbus, Hawley A powerful local shear instability in weakly magnetized disks. I - linear analysis. II - Nonlinear evolution , Astrophysical Journal 376, 1991, 214-233
personal data
SURNAME Hawley, John F.
ALTERNATIVE NAMES Hawley, John Frederick
BRIEF DESCRIPTION American astrophysicist
DATE OF BIRTH 23rd August 1958
PLACE OF BIRTH Annapolis, Maryland