William Reach

William Reach is a Research Scientist at the Infrared Processing and Analysis Center (IPAC) at Caltech. He lead the IPAC team participating in the ESA cosmology mission, Planck, set for launch late 2008. His astronomical research concerns comets, the interstellar medium, protostars, and cosmic backgrounds.

Biography Updated on 20 January 2008

Personal Home Page

http://spider.ipac.caltech.edu/staff/reach/Site/William T. Reach Home Page.html

Articles in Scholarly Journals [Incomplete List]

  1. The dust trail of Comet 67P/Churyumov–Gerasimenko
    Icarus, 2007
  2. A survey of debris trails from short-period comets
    Icarus, vol. 191, no. 1, pp. 298–322, 2007
  3. Aromatic emission from the ionised mane of the Horsehead nebula
    Astronomy and Astrophysics, vol. 471, no. 1, pp. 205–212, 2007
  4. Analysis of the emission of very small dust particles from Spitzer spectro-imagery data using blind signal separation methods
    Astronomy and Astrophysics, vol. 469, no. 2, pp. 575–586, 2007
  5. Large-Scale Star Formation Triggering in the Low-Mass Arp 82 System: A Nearby Example of Galaxy Downsizing Based on UV/Optical/Mid-IR Imaging
    The Astronomical Journal, vol. 133, no. 2, pp. 676–693, 2007
  6. The Spitzer Spirals, Bridges, and Tails Interacting Galaxy Survey: Interaction-Induced Star Formation in the Mid-Infrared
    The Astronomical Journal, vol. 133, no. 3, pp. 791–817, 2007
  7. Clustering of the IR Background Light with Spitzer: Contribution from Resolved Sources
    The Astrophysical Journal, vol. 657, no. 1, pp. 37–50, 2007
  8. A Spitzer White Dwarf Infrared Survey
    The Astrophysical Journal Supplement Series, vol. 171, no. 1, pp. 206–218, 2007
  9. Erratum: “Shock Processing of Interstellar Dust and Polycyclic Aromatic Hydrocarbons in the Supernova Remnant N132D” (ApJ, 653, 267 [2006])
    The Astrophysical Journal, vol. 659, no. 2, pp. 1794–1794, 2007
  10. The New Class of Dusty DAZ White Dwarfs
    The Astrophysical Journal, vol. 662, no. 1, pp. 544–551, 2007
  11. A Near‐Infrared and X‐Ray Study of W49 B: A Wind Cavity Explosion
    The Astrophysical Journal, vol. 654, no. 2, pp. 938–944, 2007
  12. Spitzer Survey of the Large Magellanic Cloud: Surveying the Agents of a Galaxy?s Evolution (SAGE). I. Overview and Initial Results
    The Astronomical Journal, vol. 132, no. 6, pp. 2268–2288, 2006
  13. Spitzer SAGE Survey of the Large Magellanic Cloud. II. Evolved Stars and Infrared Color-Magnitude Diagrams
    The Astronomical Journal, vol. 132, no. 5, pp. 2034–2045, 2006
  14. Candidates for Asteroid Dust Trails
    The Astronomical Journal, vol. 132, no. 2, pp. 582–595, 2006
  15. Spitzer IRAC Images and Sample Spectra of Cassiopeia A’s Explosion
    The Astrophysical Journal, vol. 652, no. 1, pp. 376–386, 2006
  16. A Spitzer Space Telescope Infrared Survey of Supernova Remnants in the Inner Galaxy
    The Astronomical Journal, vol. 131, no. 3, pp. 1479–1500, 2006
  17. Long-Wavelength Excesses in Two Highly Obscured High-Mass X-Ray Binaries: IGR J16318-4848 and GX 301-2
    The Astrophysical Journal, vol. 649, no. 2, pp. L107–L110, 2006
  18. Erratum: “Structure and Colors of Diffuse Emission in the Spitzer Galactic First Look Survey” (ApJS, 154, 281 [2004])
    The Astrophysical Journal Supplement Series, vol. 164, no. 1, pp. 306–306, 2006
  19. The Mystery Deepens: Spitzer Observations of Cool White Dwarfs
    The Astrophysical Journal, vol. 642, no. 2, pp. 1051–1056, 2006
  20. Powerful High-Velocity Dispersion Molecular Hydrogen Associated with an Intergalactic Shock Wave in Stephan's Quintet
    The Astrophysical Journal, vol. 639, no. 2, pp. L51–L54, 2006
  21. Shock Processing of Interstellar Dust and Polycyclic Aromatic Hydrocarbons in the Supernova Remnant N132D
    The Astrophysical Journal, vol. 653, no. 1, pp. 267–279, 2006
  22. Spectacular Spitzer Images of the Trifid Nebula: Protostars in a Young, Massive-Star-forming Region
    The Astrophysical Journal, vol. 643, no. 2, pp. 965–977, 2006
  23. Spitzer Survey of the Large Magellanic Cloud: Surveying the Agents of a Galaxy's Evolution (SAGE)
    Proceedings of the International Astronomical Union, vol. 2, no. S241, 2006
  24. GOODS spitzer IRAC observations of high-z galaxies – Implications for reionization
    New Astronomy Reviews, vol. 50, no. 1-3, pp. 127–133, 2006
  25. Protostars in the Elephant Trunk Nebula
    Proceedings of the International Astronomical Union, vol. 2, no. S237, p. 188, 2006
  26. Spitzer/IRAC and ISOCAM/CVF insights on the origin of the near to mid-IR Galactic diffuse emission
    Astronomy and Astrophysics, vol. 453, no. 3, pp. 969–978, 2006
  27. Infrared observations of comets with the Spitzer Space Telescope
    Advances in Space Research, vol. 38, no. 9, pp. 2031–2038, 2006
  28. The galactic first-look survey with the space telescope
    Advances in Space Research, vol. 36, no. 6, pp. 1050–1056, 2005
  29. Mid-IR spectro-imaging observations with the ISOCAM CVF: Final reduction and archive
    Astronomy and Astrophysics, vol. 436, no. 3, pp. 1151–1158, 2005
  30. The Dust Cloud around the White Dwarf G29-38
    The Astrophysical Journal, vol. 635, no. 2, pp. L161–L164, 2005
  31. Shocked Molecular Gas in the Supernova Remnants W28 and W44: Near-Infrared and Millimeter-Wave Observations
    The Astrophysical Journal, vol. 618, no. 1, pp. 297–320, 2005
  32. Rest-Frame Ultraviolet-to-Optical Properties of Galaxies at z ˜ 6 and z ˜ 5 in the Hubble Ultra Deep Field: From Hubble to Spitzer
    The Astrophysical Journal, vol. 634, no. 1, pp. 109–127, 2005
  33. The First Detection of Dust Emission in a High-Velocity Cloud
    The Astrophysical Journal, vol. 631, no. 1, pp. L57–L60, 2005
  34. Using Spitzer Colors as Diagnostics of Star Formation Regions: The Interacting Galaxy Arp 107
    The Astronomical Journal, vol. 130, no. 5, pp. 2117–2127, 2005
  35. Absolute Calibration of the Infrared Array Camera on the Spitzer Space Telescope
    Publications of the Astronomical Society of the Pacific, vol. 117, no. 835, pp. 978–990, 2005
  36. The Infrared Array Camera (IRAC) Shallow Survey
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 48–53, 2004
  37. Deep Mid-Infrared Observations of Lyman Break Galaxies
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 97–102, 2004
  38. Spitzer Observations of the Dust Coma and Nucleus of 29P/Schwassmann-Wachmann 1
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 463–468, 2004
  39. Structure and Colors of Diffuse Emission in the Spitzer Galactic First Look Survey
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 281–285, 2004
  40. The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 10–17, 2004
  41. Near-Infrared Polarimetry and Photometry of Recent Comets
    The Astronomical Journal, vol. 127, no. 4, pp. 2398–2405, 2004
  42. The Spitzer First Look Survey—Ecliptic Plane Component: Asteroids and Zodiacal Background
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 469–474, 2004
  43. DR 21: A Major Star Formation Site Revealed by Spitzer
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 333–338, 2004
  44. Protostars in the Elephant Trunk Nebula
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 385–390, 2004
  45. An Aggregate of Young Stellar Disks in Lynds 1228 South
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 433–438, 2004
  46. The Nature of Faint 24 Micron Sources Seen in Spitzer Space Telescope Observations of ELAIS-N1
    The Astrophysical Journal Supplement Series, vol. 154, no. 1, pp. 80–86, 2004
  47. High-Redshift Extremely Red Objects in the Hubble Space Telescope Ultra Deep Field Revealed by the GOODS Infrared Array Camera Observations
    The Astrophysical Journal, vol. 616, no. 1, pp. 63–70, 2004
  48. Near-Infrared Synchrotron Emission from Cassiopeia A
    The Astrophysical Journal, vol. 592, no. 1, pp. 299–310, 2003
  49. The mid-infrared spectrum of the zodiacal and exozodiacal light
    Icarus, vol. 164, no. 2, pp. 384–403, 2003
  50. Molecular and Ionic Shocks in the Supernova Remnant 3C 391
    The Astrophysical Journal, vol. 564, no. 1, pp. 302–316, 2002
  51. The Origin of Far-Infrared [C ii] Emission in the Large Magellanic Cloud
    The Astrophysical Journal, vol. 571, no. 1, pp. 288–292, 2002
  52. Photoelectric Heating and [C ii] Cooling of High Galactic Latitude Translucent Clouds
    The Astrophysical Journal, vol. 579, no. 1, pp. 289–303, 2002
  53. Shocked Molecular Gas in the Supernova Remnant HB 21
    The Astrophysical Journal, vol. 552, no. 1, pp. 175–188, 2001
  54. Near-Infrared Imaging and [O i] Spectroscopy of IC 443 using Two Micron All Sky Survey and Infrared Space Observatory
    The Astrophysical Journal, vol. 547, no. 2, pp. 885–898, 2001
  55. The Cosmic Infrared Background at 1.25 and 2.2 Microns Using DIRBE and 2MASS: A Contribution Not Due to Galaxies?
    The Astrophysical Journal, vol. 555, no. 2, pp. 563–571, 2001
  56. Infrared Spectroscopy of Molecular Supernova Remnants
    The Astrophysical Journal, vol. 544, no. 2, pp. 843–858, 2000
  57. The Formation of Encke Meteoroids and Dust Trail
    Icarus, vol. 148, no. 1, pp. 80–94, 2000
  58. A Search for Resonant Structures in the Zodiacal Cloud with COBE DIRBE: The Mars Wake and Jupiter's Trojan Clouds
    Icarus, vol. 145, no. 1, pp. 44–52, 2000
  59. Excitation and Disruption of a Giant Molecular Cloud by the Supernova Remnant 3C 391
    The Astrophysical Journal, vol. 511, no. 2, pp. 836–846, 1999
  60. Dust in the Local Interstellar Wind
    The Astrophysical Journal, vol. 525, no. 1, pp. 492–516, 1999
  61. The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. I. Limits and Detections
    The Astrophysical Journal, vol. 508, no. 1, pp. 25–43, 1998
  62. The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. II. Model of the Interplanetary Dust Cloud
    The Astrophysical Journal, vol. 508, no. 1, pp. 44–73, 1998
  63. The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. III. Separation of Galactic Emission from the Infrared Sky Brightness
    The Astrophysical Journal, vol. 508, no. 1, pp. 74–105, 1998
  64. Infrared Observations of Comets by COBE
    The Astrophysical Journal, vol. 496, no. 2, pp. 971–991, 1998
  65. Infrared Excess and Molecular Clouds: A Comparison of New Surveys of Far-Infrared and H i 21 Centimeter Emission at High Galactic Latitudes
    The Astrophysical Journal, vol. 507, no. 2, pp. 507–525, 1998
  66. Detection of Far-Infrared Water Vapor, Hydroxyl, and Carbon Monoxide Emissions from the Supernova Remnant 3C 391
    The Astrophysical Journal, vol. 507, no. 1, pp. L93–L97, 1998
  67. The Three-Dimensional Structure of the Zodiacal Dust Bands
    Icarus, vol. 127, no. 2, pp. 461–484, 1997
  68. ISOCAM Observations of the Comet P/Kopff Dust Trail
    Icarus, vol. 127, no. 1, pp. 251–254, 1997
  69. Radio Recombination Lines from Inner Galaxy Diffuse Gas. II. The Extended Low-Density Warm Ionized Medium and the ``Worm-ionized Medium''
    The Astrophysical Journal, vol. 466, p. 191, 1996
  70. COBE/DIRBE Observations of the Orion Constellation from the Near- to Far-Infrared
    The Astrophysical Journal, vol. 456, p. 566, 1996
  71. High-Latitude Galactic Emission in the COBE Differential Microwave Radiometer 2 Year Sky Maps
    The Astrophysical Journal, vol. 460, p. 1, 1996
  72. Radio Recombination Lines from Inner Galaxy Diffuse Gas. I. High-Sensitivity Observations: He +/H + and Carbon
    The Astrophysical Journal, vol. 462, p. 326, 1996
  73. Observational confirmation of a circumsolar dust ring by the COBE satellite
    Nature, vol. 374, no. 6522, Article ID 374521a0, 2 pages, 1995
  74. The Ratio of H 2 Column Density to 12CO Intensity in the Vicinity of the Galactic Center
    The Astrophysical Journal, vol. 452, p. 262, 1995
  75. Near- and far-infrared observations of interplanetary dust bands from the COBE diffuse infrared background experiment
    The Astrophysical Journal, vol. 442, p. 662, 1995
  76. Dense gas in high-latitude molecular clouds
    The Astrophysical Journal, vol. 441, p. 244, 1995
  77. Far-Infrared Spectral Observations of the Galaxy by COBE
    The Astrophysical Journal, vol. 451, p. 188, 1995
  78. Infrared observations of Comet Austin (1990 V) by the COBE/Diffuse Infrared Background Experiment
    The Astrophysical Journal, vol. 432, p. L71, 1994
  79. Atomic and molecular gas in interstellar cirrus clouds
    The Astrophysical Journal, vol. 429, p. 672, 1994
  80. COBE DIRBE near-infrared polarimetry of the zodiacal light: Initial results
    The Astrophysical Journal, vol. 431, p. L63, 1994
  81. The nature of unidentified far-infrared point sources
    The Astrophysical Journal, vol. 412, p. 127, 1993
  82. Zodiacal emission. III - Dust near the asteroid belt
    The Astrophysical Journal, vol. 392, p. 289, 1992
  83. Galactic worms. I - Catalog of worm candidates
    The Astrophysical Journal, vol. 390, p. 108, 1992
  84. Zodiacal emission. II - Dust near ecliptic
    The Astrophysical Journal, vol. 369, p. 529, 1991
  85. Detection of an expanding H I shell in the old supernova remnant CTB 80
    The Astrophysical Journal, vol. 364, p. 178, 1990
  86. A large bubble around the Crab Nebula
    The Astrophysical Journal, vol. 349, p. L51, 1990