John Krist's Home Page

• John Krist
  Space Science Telescope Institute
  3700 San Martin Drive
  Baltimore, MD 21218 USA

• E-mail: krist@stsci.edu
• Phone: 410-338-4901

Duties at STScI

• Title: Senior Optical Analyst
• Division/branch: Instruments Division/Telescope Branch
• HST focus monitoring
• ACS PSF characterization
• Contact scientist for ACS coronagraphic proposals

Professional Interests:

• Author of the Tiny Tim HST PSF Simulator
• Circumstellar disks around T Tauri, Herbig Ae/Be, main sequence stars
• Optics (coronagraphy, phase retrieval, PSF modeling)
• Extrasolar planet finding (TPF, coronagraphic methods)
• ACS Science Team member (circumstellar disks program)
• Publications:

  Hubble Space Telescope ACS Coronagraphic Imaging of the Circumstellar Disk around HD 141569A

  M. Clampin, J. Krist, D. Ardila, D. Golimowksi, G. Hartig, H. Ford, G. Illingworth, & the ACS Science Team (2003) AJ, 126, 385

  Coronagraphic Imaging of 3C 273 with the Advanced Camera for Surveys

  A. Martel, H. Ford, H. Tran, G. Illingworth, J. Krist, R. White, W. Sparks, & the ACS Science Team (2003) AJ, 125, 2964

  Hubble Space Telescope WFPC2 Imaging of the Disk and Jet of HV Tauri C

  K. Stapelfeldt, F. Menard, A. Watson, J. Krist, C. Dougados, D. Padgett, & W. Bradner (2003) ApJ, 589, 410

  (PDF 400KB) The Jovian Planet Finder Optical System

  J. Krist, M. Clampin, L. Petro, R. Woodruff, H. Ford, G. Illingworth, & C. Ftaclas (2003) SPIE Proceedings on High-Contrast Imaging for Exo-Planet Detection, v. 4860, 288

  On-orbit Alignment and Imaging Performance of the HST Advanced Camera for Surveys

  G. Hartig, J. Krist, A. Martel, H. Ford, & G. Illingworth (2003) SPIE Proceedings on Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, v. 4854, 532

  (PDF 1.8MB) The Advanced Camera for Surveys Coronagraph on the Hubble Space Telescope

  J. Krist, G. Hartig, M. Clampin, D. Golimowski, H. Ford, & G. Illingworth (2003) SPIE Proceedings on High-Contrast Imaging for Exo-Planet Detection, v. 4860, 20

  Hubble Space Telescope/WFPC2 Images of the GG Tauri Circumbinary Disk

  J. E. Krist, K. R. Stapelfeldt, & A. M. Watson (2002), ApJ, 570, 785

  The Very Low Mass Component of the Gliese 105 System

  D. A. Golimowksi, T. J. Henry, J. E. Krist, D. J. Schroeder, G. W. Marcy, D. A. Fischer, & R. P. Butler (2000), AJ, 120, 2082

  WFPC2 Images of a Face-on Disk Surrounding TW Hydrae

  J. E. Krist, K. R. Stapelfeldt, F. Menard, D. L. Padgett, & C. J. Burrows (2000), ApJ, 538, 793

  Hubble Space Telescope WFPC2 Imaging of XZ Tauri:Time Evolution of a Herbig-Haro Bow Shock

  J. E. Krist, K. R. Stapelfeldt, C. J. Burrows, J. J. Hester, A. M. Watson, & the WFPC2 Science Team (2000), ApJ, 515, L35

  WFPC2 Observations of Compact Star Cluster Nuclei in Low-Luminosity Spiral Galaxies

  L. D. Matthews, J. S. Gallagher, J. E. Krist, A. M. Watson, C. J. Burrows, R. E. Griffiths, J. J. Hester, J. T. Trauger, & the WFPC2 Science Team (1999), AJ, 118, 208

  Hubble Space Telescope Imaging of the Circumstellar Nebulosity of T Tauri

  K. R. Stapelfeldt, C. J. Burrows, J. E. Krist, A. M. Watson, & the WFPC2 Science Team (1998), ApJ, 508, 736

  Characterization and Subtraction of Well-Exposed HST/NICMOS Camera 2 Point-Spread Functions for a Survey of Very Low Mass Companions to Nearby Stars

  J. E. Krist, D. A. Golimowski, D. J. Schroeder, & T. J. Henry (1998), PASP, 110, 1046

  Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6-5B

  J. E. Krist, K. R. Stapelfeldt, C. J. Burrows, & the WFPC2 Science Team (1998), ApJ, 501, 841

  An Edge-On Circumstellar Disk in the Young Binary System HK Tauri

  K. R. Stapelfeldt, J. E. Krist, F. Menard, J. Bouvier, & D. L. Padgett (1998), ApJ, 502, L65

  Hubble Space Telescope WFPC2 Images of Emission Nebulosity near XZ Tauri

  J. E. Krist, C. J. Burrows, K. R. Stapelfeldt, & the WFPC2 Science Team (1997), ApJ, 481, 447

  Hubble Space Telescope Observations of the SN 1987A Triple Ring Nebula

  C. Burrows, J. Krist, J. Hester, R. Sahai, J. Trauger, K. Stapelfeldt, J. Gallagher, & the WFPC2 Science Team (1995) ApJ, 452, 680

  WFPC2 Imaging of the Circumstellar Nebulosity of HL Tauri

  K. Stapelfeldt, C. Burrows, J. Krist, J. Trauger, J. Hester, J. Holtzman, & the WFPC2 Science Team (1995) ApJ, 449, 888

  Phase-Retrieval Analysis of Pre- and Post-Repair Hubble Space Telescope Images

  J. Krist & C. Burrows (1995) Applied Optics, 34, 4951

  RR Lyrae Stars in Local Group Galaxies. III. NGC 205

  A. Saha, J. Hoessel, J. Krist (1992) AJ, 103, 84

• Press Releases:

  (HD 141569) Hubble Reveals Complex Circumstellar Disk (2003)

  (ACS Early Release Photos) Hubble's New Camera Delivers Breathtaking Views of the Universe (2002)

  (XZ Tau & HH 30) Movies from Hubble Show the Changing Faces of Infant Stars (2000)

  (Haro 6-5b) Hubble Sees Disks Around Young Stars (1999)

  (Beta Pic) Disk around Star May Be Warped by Unseen Planet (1996)