RARE "Infrared Astronomy Pioneer” Frank J. Low Hand Signed 1X5 Card For Sale
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RARE "Infrared Astronomy Pioneer” Frank J. Low Hand Signed 1X5 Card:
$399.99
Up for sale a RARE! "Infrared Astronomy" Frank J. Low Hand Signed 1X5 Card.
ES-9282
Frank
James Low (November 23,
1933 – June 11, 2009) was a solid state physicist who became a leader in the new field of infrared astronomy, after
inventing the gallium doped germanium bolometer in 1961. This detector extended the range of
the observable spectrum to much longer wavelengths. Born on November 23, 1933
in Mobile, Alabama, Low grew
up as a child in Houston, Texas.
His undergraduate studies in physics were at Yale University and he obtained his Doctor of Philosophy degree
in physics from Rice University in
1959. He
started working at Texas Instruments in 1961, where one of his early
projects was the development of a low-temperature thermometer that was
developed using a germanium semiconductor that had been doped with small
quantities of gallium, which measured changes in
temperature based on the change in the device's electrical resistance as energy
was absorbed. Based on his academic experiences, he came to the conclusion that
the technology behind this thermometer could be integrated as the basis for a
bolometer that could be used to measure the radiant energy coming from stars
as infrared radiation, waves that occupy a portion of the
electromagnetic spectrum whose wavelength is longer than for visible light
(400–700 nm), but shorter than those of terahertz radiation (100 µm
– 1 mm) or microwaves. Astronomers
had been trying to find measures to detect infrared radiation for years, and
Low went to the National
Radio Astronomy Observatory in Green Bank, West Virginia in
1962 to test his bolometer, more sensitive to infrared than detectors
previously in use on the Green Bank Telescope, the
world's largest fully steerable radio telescope. However, infrared waves are
absorbed by molecules such as water vapor in the atmosphere. To
avoid atmospheric absorption of infrared radiation, Low developed devices that
could be placed aboard aircraft, first using a Douglas A-3 Skywarrior from the United States Navy that
carried a 2-inch telescope in 1965 and 1966, and later using a Learjet operated by NASA with
a 12-inch telescope on board. Low used the Learjet to make the discovery emitting more energy than what they receive
as solar radiation, demonstrating that both of these planets must have an
internal source of energy. Low continued to use the Learjet for research, even
after NASA started use of the Kuiper Airborne
Observatory in 1975 using a former C-141 Starlifter cargo
craft, which is to be replaced with Stratospheric Observatory for Infrared Astronomy (SOFIA),
a joint NASA and German Aerospace Center project
that uses a converted Boeing 747SP. He
had worked at Rice University and at the University of Arizona. He
was also the president of Infrared Laboratories, Inc., which he founded in 1967
to make infrared detectors and cryostats for observatories and infrared microscopes as
well. He proposed and joined the international project to build the Infrared Astronomy
Satellite (IRAS), a project that included joint efforts from
the United States, United Kingdom and
the Netherlands, which made the first survey of the infrared sky
from space, avoiding all atmospheric interference with observations, starting
in 1983. Low served as the chief technologist for the project. After an
accident at Jet Propulsion in the infrared detectors, Low led an
effort at Infrared Laboratories to develop improved replacement units to
resolve the crisis. IRAS was able to discover in excess of 500,000 infrared
sources, including many galaxies, and has discovered shells of debris
surrounding stars that show the early stages of planetary formation, with
debris similar to that later found as the Kuiper belt that encircles our Solar System beyond the orbit of Neptune. Based on these findings, researchers have concluded
that the majority of galactic radiation is emitted in the form of infrared
radiation that is generated when light from young stars is absorbed by interstellar dust and then radiated from the dust in the
form of heat. In 1984, IRAS found that the galaxy Arp 220, located 300 million light years from Earth, is the
closest Ultraluminous Infrared
Galaxy, emitting 100 times more energy than the Milky Way galaxy, primarily in the infrared spectrum,
even though it is faintly visible by telescope using visible light. Low
was named to serve as facility scientist for NASA's Space Infrared Telescope
Facility, later renamed the Spitzer Space Telescope.
The effort had been delayed by cost overruns, until Low had an inspiration at a
1993 retreat for the project's scientists; the passive cooling technique could
be used – rather than place the entire telescope in a bath of liquid helium to cool the unit to temperatures near absolute
zero, the unit could be exposed to the vacuum of space to radiate
most of its heat while the detectors themselves were the only components cooled
using liquid helium, a design change that allowed the Spitzer project to go
ahead towards its launch in 2003. Timothy Hawarden has been recognized by
NASA for the development of the passive cooling technique, which has also been
included in other space probes, such as the James Webb Space Telescope,
a partial successor to the Hubble Space Telescope,
that will search for the oldest objects in the universe.
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