Results 191 to 200 of about 149,506 (246)
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Science, 1986
The 250,000 sources in the recently issued Infrared Astronomy Satellite (IRAS) all-sky infrared catalog are a challenge to astronomy. Many of these sources will be studied with existing and planned ground-based and airborne telescopes, but many others can no longer even be detected now that IRAS has ceased to operate.
G H, Rieke +8 more
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The 250,000 sources in the recently issued Infrared Astronomy Satellite (IRAS) all-sky infrared catalog are a challenge to astronomy. Many of these sources will be studied with existing and planned ground-based and airborne telescopes, but many others can no longer even be detected now that IRAS has ceased to operate.
G H, Rieke +8 more
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Instrumentation for Infrared Astronomy
Annual Review of Astronomy and Astrophysics, 1978Over the last 10 years infrared astronomy from 2 µm to 1000 µm has blossomed into a major field of observational astrophysics. This development would have been impossible without two major technical advances. First, extremely sensitive detectors have been developed and become available for astronomical applications.
Soifer, B. T., Pipher, Judith L.
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Journal of Astronomical History and Heritage, 2009
I present a short history of infrared astronomy, from the first scientific approaches of the `radiant heat' in the seventeenth century to the 1970's, the time when space infrared astronomy was developing very rapidly. The beginning of millimeter and submillimeter astronomy is also covered. As the progress of infrared astronomy was strongly dependent on
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I present a short history of infrared astronomy, from the first scientific approaches of the `radiant heat' in the seventeenth century to the 1970's, the time when space infrared astronomy was developing very rapidly. The beginning of millimeter and submillimeter astronomy is also covered. As the progress of infrared astronomy was strongly dependent on
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1994
What do we understand of the birth and death of stars? What is the nature of the tiny dust grains that permeate our Galaxy and other galaxies? And how likely is the existence of brown dwarfs, extrasolar planets or other sub-stellar mass objects? These are just a few of the questions that can now be addressed in a new era of infrared observations.
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What do we understand of the birth and death of stars? What is the nature of the tiny dust grains that permeate our Galaxy and other galaxies? And how likely is the existence of brown dwarfs, extrasolar planets or other sub-stellar mass objects? These are just a few of the questions that can now be addressed in a new era of infrared observations.
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Infrared detectors enable spectacular infrared astronomy
Astronomische Nachrichten, 2023AbstractMajor advances in infrared astronomy have been enabled by new technologies‐from the first example of infrared astronomy using the vacuum thermocouple to the expansion of the field into the thermal infrared using the Ge:Ga bolometer. The introduction of high‐performance detector arrays had an even more profound influence through the James Webb ...
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Infrared Detector For Mid-Infrared Astronomy
Astrophysics and Space Science, 1989Recent developments of infrared detectors and arrays for mid-infrared astronomical observations are discussed with an emphasis on technical issues in designing and fabricating photometers and cameras. The discussion includes a small-scale silicon bolometer array being tested at the Steward Observatory.
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Immersion grating for infrared astronomy
Applied Optics, 1993An immersion grating with high refractive index n increases spectral resolution n-fold over that of a surface reflection grating of equal length.
G, Wiedemann, D E, Jennings
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Infrared Astronomy Instruments
Optical Engineering, 1977In this issue devoted to Infrared Astronomy Instruments, you will note that most of the instruments are designed for use at altitude, either in aircraft, balloons, probes or satellites. Such usage permits observation above the interfering atmosphere usually encountered during ground observations.
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Publications of the Astronomical Society of Australia, 1977
Infrared astronomical observations using ground-based equipment are confined to the few ‘windows’ or observation ports allowed by our absorbing atmosphere, the chief absorbing molecules being water vapour and CO2. The majority of such observations have been made using broadband filters defining the photometric J, H, K, L, M, N and O bands.
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Infrared astronomical observations using ground-based equipment are confined to the few ‘windows’ or observation ports allowed by our absorbing atmosphere, the chief absorbing molecules being water vapour and CO2. The majority of such observations have been made using broadband filters defining the photometric J, H, K, L, M, N and O bands.
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Publications of the Astronomical Society of Australia, 1971
Until the last six years few infrared observations of astronomical objects (other than the Sun and planets) had been attempted. Those few were primarily concerned with obtaining bolometric corrections and effective temperatures, the variation of bolometric magnitudes of late-type variables, and the derivation of the laws of interstellar extinction.
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Until the last six years few infrared observations of astronomical objects (other than the Sun and planets) had been attempted. Those few were primarily concerned with obtaining bolometric corrections and effective temperatures, the variation of bolometric magnitudes of late-type variables, and the derivation of the laws of interstellar extinction.
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