F. C. Gillett

Kitt Peak National Observatory

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W. A. Stein

University of Central Oklahoma

G. Neugebauer

California Institute of Technology

W. J. Forrest

Merck & Co., Inc., Rahway, NJ, USA (United States)

F. J. Low

Hong Kong Jockey Club

A. T. Tokunaga

University of Hawaii–West Oahu

F. J. Low

University of Arizona

K. M. Merrill

Optica

I. G. Nolt

Langley Research Center

B. T. Soifer

California Institute of Technology

John Caldwell

Institute of Cancer Research

Cooperative Institutions

California Institute of Technology

Kitt Peak National Observatory

Jet Propulsion Laboratory

University of Arizona

Infrared Processing and Analysis Center

Association of Universities For Research In Astronomy

U.S. National Science Foundation

Goddard Space Flight Center

University of Hawaii System

Optica

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In-flight tests

Hartmut H. Aumann T. N. Gautier F. C. Gillett P. Hacking G. Neugebauer

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Flux reconstruction and calibration

G. Neugebauer S. Wheelock F. C. Gillett Hartmut H. Aumann T. N. Gautier

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Cryogenic Telescope On The Infrared Astronomical Satellite (IRAS)

Optical Engineering (1984)

F. J. Low C. A. Beichman F. C. Gillett J. R. Houck G. Neugebauer

The Infrared Astronomical Satellite (IRAS)* has completed an unbiased all-sky survey at wavelengths from 10 to 100 Am. The design and performance of the focal plane array is described with emphasis on in-orbit measurements of the sensitivity and stability. In the four broad spectral bands centered at 12, 25, 60, and 100 Am, the system noise equivalent flux density (NEFD) values are, in Jy/Hz1/2, 0.03, 0.025, 0.046, and 0.21, respectively (Jansky = 10-26 W/m2/Hz). For point sources, a single scan at the survey rate of 3.8 arcmin/s yields limiting flux densities at the 3-sigma confidence level of 0.36, 0.30, 0.39, and 1.2 Jy. The dc stability of the junction field effect transistor (JFET) amplifiers and the excellent off-axis rejection of the tele-scope permit total flux measurements of extended infrared emission at levels below 106 Jy/sr. Response of the extrinsic silicon and germanium photo-detectors to ionizing radiation is described.

JFET

Infrared astronomy

10.1117/12.7973398

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Accurate photometric positions for 60 sources from the AFCRL sky survey.

The Astrophysical Journal (1977)

R. R. Joyce R. W. Capps F. C. Gillett G. Grasdalen S. G. Kleinmann

10.1086/182423

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7.5–13.5 Micron spectra of Ceres and Vesta

Icarus (1975)

F. C. Gillett K. M. Merrill

10.1016/0019-1035(75)90179-7

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IRAS observations of irregular galaxies

NASA, Washington Star Formation in Galaxies (1987)

Deidre A. Hunter W. L. Rice J. S. Gallagher F. C. Gillett

Normal irregular galaxies seem to be unusual in having vigorous star formation yet lacking the many dark nebulae typical of spirals. The Infrared Astronomy Satellite (IRAS) observations of a large sample of irregulars are used to explore the dust contents of these galaxies. Compared to normal spirals, the irregulars generally have higher L sub IR/L sub B ratios, warmer f(100)/f(60) dust color temperatures, and lower globally-averaged dust/gas ratios. The relationship between the infrared data and various global optical properties of the galaxies is discussed.

Irregular galaxy

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Far-infrared observations of the Crab nebula

The Astrophysical Journal (1984)

P. L. Marsden F. C. Gillett R. E. Jennings J. P. Emerson T. de Jong

view Abstract Citations (92) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Far-infrared observations of the Crab nebula. Marsden, P. L. ; Gillett, F. C. ; Jennings, R. E. ; Emerson, J. P. ; de Jong, T. ; Olnon, F. M. Abstract Infrared photometry for the total flux from the Crab nebula using the Infrared Astronomical Satellite (IRAS) survey detectors is presented. The observations show an infrared excess beyond 12 microns over the extrapolated radio and near-infrared fluxes. The break in the radio spectrum occurs at approximately 1 x 10 to the 13th Hz, consistent with an average magnetic field strength of roughly 300 microgauss. The luminosity excess is approximately 1000 solar luminosities and is interpreted as due to thermal emission from 0.005-0.03 solar masses of dust in the nebula. Publication: The Astrophysical Journal Pub Date: March 1984 DOI: 10.1086/184215 Bibcode: 1984ApJ...278L..29M Keywords: Astronomical Photometry; Crab Nebula; Far Infrared Radiation; Infrared Astronomy; Cosmic Dust; Field Strength; Infrared Astronomy Satellite; Infrared Photometry; Magnetic Fields; Radio Sources (Astronomy); Astrophysics full text sources ADS | data products SIMBAD (2)

Crab Nebula

Infrared astronomy

Orion Nebula

10.1086/184215

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Citations (62)

Physical processes and infrared emission from the Cassiopeia A supernova remnant

The Astrophysical Journal (1987)

E. Dwek M. G. Hauser H. L. Dinerstein F. C. Gillett W. L. Rice

view Abstract Citations (54) References (43) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Physical Processes and Infrared Emission from the Cassiopeia A Supernova Remnant Dwek, E. ; Dinerstein, H. L. ; Gillett, F. C. ; Hauser, M. G. ; Rice, W. L. Abstract Infrared emission from the Cas A supernova remnant has been detected in the IRAS survey from 12 to 100 Î¼m, greatly in excess of the extrapolated radio synchrotron continuum. A fraction of the infrared flux probably comes from line emission in knots of shocked, optical-line emitting gas that are dispersed throughout the supernova cavity. Most of the infrared emission is due to thermal radiation by dust. The total in-band infrared luminosity is â‰¡3100 L_sun;, assuming a source distance of 2.8 kpc. This emission can be most simply interpreted as radiation from a mixture of silicate and graphite dust particles which have been swept up by the expanding supernova blast wave and collisionally heated by the X-ray emitting gas. Alternatively, or in addition to the swept-up dust, stellar or supernova condensates, heated by the reverse shock that travels through the ejecta, may give rise to or contribute to the emission. Publication: The Astrophysical Journal Pub Date: April 1987 DOI: 10.1086/165160 Bibcode: 1987ApJ...315..571D Keywords: Emission Spectra; Infrared Spectra; Stellar Physics; Stellar Spectrophotometry; Supernova Remnants; Interstellar Gas; Line Spectra; Milky Way Galaxy; Stellar Evolution; Synchrotron Radiation; Astrophysics; NEBULAE: INDIVIDUAL NAME: CASSIOPEIA A; NEBULAE: SUPERNOVA REMNANTS; RADIATION MECHANISMS full text sources ADS | data products SIMBAD (1)

Cassiopeia A

Near-Earth supernova

10.1086/165160

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The Spatial Scale, Characteristic Particle Size, and Evolution of the Particle Clouds around beta Pic, alpha PsA, and alpha Lyr

Bulletin of the American Astronomical Society (1987)

D. E. Backman F. C. Gillett F. J. Low G. Neugebauer F. C. Witteborn

BETA (programming language)

Alpha (finance)

Particle (ecology)

Alpha particle

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Exploiting the infrared: IRAS observations of the main sequence

Cool Stars, Stellar Systems and the Sun (2008)

D. E. Backman F. C. Gillett

We examined coadded IRAS survey data on samples of nearby main sequence stars in search of far-IR excesses similar to examples attributed to clouds of orbiting grains. Of 134 systems, 25 (19%) show significant excesses at 25, 60, or 100 μm with color temperatures greater than 35 K. Approximately 15% of the stars have excess more luminous than 2×10−5L*, roughly independent of spectral type. Several stars with excesses appear to be older than 2×109 yrs, indicating that the particle cloud phenomenon is not solely a feature of young objects. Models of three prominent clouds that have been spatially resolved (β Pic, α PsA, and α Lyr) imply central depleted regions with radii of order 20 AU. One possible explanation for maintenance of the depleted regions is that a planet orbits at and defines each cloud's inner boundary, sweeping up particles entering that region. The sun could have a cloud with similar geometry and somewhat smaller optical depth than these examples which would be difficult to detect from earth because of bright zodiacal and galactic emission.

Zodiacal light

10.1007/3-540-18653-0_155

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Citations (37)