Tag: Obituary

Charles A. Barth, Professor Emeritus at the University of Colorado, died on October 14th 2014.  Charles grew up in Philadelphia where he attended Central High School. He received his B.S. in chemistry at Lehigh University. After serving in the Air Force, he earned his Ph.D. from UCLA. From 1958 to 1959 he was a postdoctoral fellow at the University of Bonn, Germany, followed by six years working at the CalTech/NASA Jet Propulsion Laboratory. From 1965 to 1992 he was the Director of the University of Colorado’s Laboratory for Atmospheric and Space Physics (LASP) and until 2002 a professor in the Department of Astrophysical and Planetary Sciences. He became Professor Emeritus in 2002.

Between 1962 and 2002, Charles was active on numerous experiments studying the Earth and other planets, including Mariners 5, 6, 7, and 9, OGO-2, 4, 5, and 6, Atmosphere Explorer-C and D, the Solar Mesosphere Explorer, the Student Nitric Oxide Experiment, and instruments on Apollo 17, Pioneer Venus, Galileo, and Cassini. As a professor, he especially valued giving undergraduate students their first taste of space and planetary science by allowing them to design, build and operate spacecraft. He mentored and inspired many undergraduate and graduate students, postdoctoral fellows, and scientists, producing a lasting legacy of friends, colleagues, and outstanding scientists. He will be missed greatly.

Transmitted by A. Hendrix

Dr. Barney Conrath passed away peacefully in his sleep on April 23, 2014, at his home in Charlottesville, Virginia, after a bout with cancer.  He is survived by his wife, Marjorie, three children, and five grandchildren.

He was born June 23, 1935 in Quincy, Illinois and grew up near Hannibal, Missouri.  In 1957 he graduated from Culver-Stockton College in northeast Missouri with a BA in Physics, then earned an MA in Physics at the University of Iowa under the direction of James Van Allen.  In July 1960, Barney joined the staff of NASA’s new Goddard Space Flight Center in Greenbelt, Maryland, where he would spend most of his professional career.  However, Goddard was not ready to accommodate him, since the Center’s buildings were still under construction.  Goddard’s scientists and engineers were housed in temporary quarters scattered over greater Washington, D.C., and Barney spent nearly two years working at the US Naval Receiving Station in the Anacostia section of the city.  Later, he won a Robert Goddard Fellowship and took a leave to earn a PhD in Physics at the University of New Hampshire in 1966, his dissertation being on the violation of the 2nd and 3rd adiabatic invariants by hydromagnetic waves.

Fortunately for atmospheric science, Barney fell in with the wrong crowd at Goddard, and his career in space plasma physics was short lived.  The atmosphere at the Center in its early days was charged with excitement: Earth-orbiting satellites were being launched at a regular rate and Goddard was supplying many of the experiments.  Barney’s group was heavily involved with the Tiros and Nimbus weather satellites, which, respectively, had radiometers and spectrometers to measure the thermal radiation field of Earth’s atmosphere.  This was a new area of exploration, and techniques were needed to interpret the observed radiation and derive physical atmospheric parameters, e.g., the distributions of temperatures, clouds, and gaseous constituents.  Beginning in the mid 1960s, Barney contributed a series of seminal studies on the inversion of planetary infrared spectra observed from space-borne platforms, which was to occupy much of his career.

The course of Barney’s work was strongly influenced by his close association with Rudolf Hanel, who built a series of Infrared Interferometer Spectrometers (IRIS) that were onboard the Nimbus satellites, and then on spacecraft that went to Mars (Mariner 9) and the outer planets (Voyager 1 & 2).  Barney was a co-investigator on all these experiments and became the Voyager IRIS principal investigator in 1986.  Early on, Barney appreciated the value—and sheer enjoyment—of combining the activities of data acquisition and spectral inversion with detailed theoretical modeling of the results.  His passion became understanding the atmospheric thermal structure and dynamics of the bodies he observed.  Using terrestrial analogies to interpret data from strange worlds is usually a reasonable starting point, but sometimes one’s mind needs to be nimble.  This was true of the hydrogen-dominated atmospheres in the outer solar system, where Barney and his colleagues discovered that conversion between the ortho and para forms of molecular hydrogen in disequilibrium could be an important energy source driving atmospheric motions.

Barney twice received the NASA Medal for Exceptional Scientific Achievement (1981, 1990), and he became a Goddard Senior Fellow in 1990.  In 1996 he received the DPS Kuiper Prize for his scientific contributions to planetary science.  He retired from Federal service in 1995 and became a Senior Research Associate at Cornell University, continuing his close collaboration with Peter Gierasch that had begun during the Voyager IRIS days. During this time, he participated in the Mars Global Surveyor Thermal Emission Spectrometer experiment. He was also a co-investigator on Cassini’s Composite Infrared Spectrometer (CIRS), an ambitious Fourier Transform Spectrometer that built on the earlier IRIS instruments.   He worked with other CIRS investigators in studying the seasonally varying thermal structure and dynamics of Titan’s stratosphere and the large structural changes effected by Saturn’s great northern storm, which erupted in late 2010.  He actively pursued his research until the end, preoccupied with determining the helium abundance of Saturn’s atmosphere—thus far a challenge—by combining CIRS data with radio occultations and with stellar occultations observed by the Cassini Visual Infrared Mapping Spectrometer (VIMS). 

In his career, Barney led by quiet example, and he epitomized unselfish cooperation in research.  He was attentive and encouraging.  His integrity and competence were unquestioned.  Those who knew him well will never forget those qualities, nor will they forget him.

Prepared by Michael Flasar, NASA Goddard Space Flight Center

Dr. Lucas Kamp died of cancer on Sunday, March 30, 2014. He had been ill for approximately 1 year, however he continued his work planning for MIRO Rosetta cometary observations and analyzing Galileo NIMS data right up until his death.

Lucas was born on March 15, 1946 in Kingston-on-Thames, England, U.K.  He was raised in the Netherlands, and spoke four languages, English, Dutch, German, and French.

Dr. Kamp received an A.B. in Astrophysical Sciences from Princeton University in 1968. Following that degree he received a Masters degree in 1970 and a Ph.D.in 1972 from the University of Chicago, both in Astronomy and Astrophysics.

From 1972-1974, Dr. Kamp was an NRC Research Affiliate at the NASA Goddard Space Flight Center in Greenbelt, MD. His work consisted of research in model stellar atmospheres, spectroscopy, and radiative transfer, specializing in non-LTE effects in early-type stars.

From 1974 – 1980, he was an Assistant Professor of Astronomy at Boston University. There he taught and worked on the analyses of IUE satellite data. Dr. Kamp joined JPL/Caltech in January 1981 where he remained up until his death. During this time he spent two sabbaticals at Oxford University where he and Professor Fred Taylor modelled near-infrared thermal emission emanating from Venus’s deep atmosphere and surface. During his time at JPL, he worked on numerous spacecraft projects including Voyager, Galileo, Viking orbiter, EPOXI, Rosetta and JUNO. He was a major contributor to the NIMS effort, particularly in the geometric and photometric aspects of NIMS hyperspectral image cubes.

Dr. Kamp was an author or co-author of 190 scientific publications. He received awards from NASA for his work on Cassini, Galileo, Rosetta and EPOXI.  He received the NASA Individual Exceptional Service Medal for contributions to Galileo NIMS data processing in October 2003.

Prepared by S. Gulkis, B. Carlson, R. Lopes

Feodor Velichko, the Leading Researcher of Institute of Astronomy of Kharkiv National University (Ukraine) died suddenly on Oct 1, 2013 in the age of 56. He was an expert in photometry and polarimetry of asteroids and comets and took part in many international observing programs devoted to physical studies of small bodies.

Feodor Velichko’s personal page
http://www.astron.kharkov.ua/staff/Velichko_F/

(transmitted by Irina Belskaya)

I have been informed that Dr. Gary B. Hansen passed away late Thursday evening, September 26, from complications of ALS. He died while sitting at his computer, working on some science or technical issue. This was a highly appropriate setting for Gary. Gary was a hard working and very dedicated scientist who contributed to a number of parts of the Planetary Sciences. He loved the work and the science. Working, I am sure, is where he wanted to be (“with his boots on,” so to speak).

Gary B. Hansen was born 12 July 1953 in Denver Colorado. He earned a BS in Engineering and Applied Science from the California Institute of Technology, 1975, an M.S. in Aeronautics and Astronautics, 1986, and a Ph.D. in Geophysics, 1996, both from the University of Washington. He held a variety of positions throughout his career, starting as an engineer for CBS television in Los Angeles 1976-79, then at the jet Propulsion laboratory, Pasadena CA (Asst. cognizant engineer for the Galileo spacecraft flight computer). At JPL he also performed considerable laboratory work on the properties of CO2 ice, which eventually supported his Ph.D., dissertation. In 1996, he came to work with me at the University of Hawaii as a researcher in my Division of Planetary Geosciences and worked closely with me and my graduate students for six years before I retired from the University and set up my own Institute near Winthrop, Washington. Gary moved to the University of Washington, became a Research Faculty there, but we continued to work on joint projects.

Gary had a long connection with and loved Seattle, and he participated in its music and sports scenes as well as his research. He owned a house there even when he worked at the University of Hawaii. The University of Washington was the natural place for him to be associated and the Department of Earth and Space Science (ESS) found a way to enable this. He felt comfortable there and contributed to several parts of the Department and its research effort, in addition to working on his and our planetary science projects. As his health failed, the ESS provided what assistance and support they could to enable his participation until the end. For this I am sure Gary, as well as those of us who knew Gary, were very appreciative.

Gary’s specialty became radiative transfer, especially in multi scattering media, such as CO2 and H2O ices. This was essential to the study of the outer solar system satellites. When Gary came to work with me in 1996, we were just beginning the observational phase of the Galileo mission and its infrared spectrometer, NIMS. As the spectra rolled in, we had a feast, and we made several important discoveries. This would not have happened without Gary’s deep understanding of the physics behind the signals the spectrometer was receiving. Further, Gary was a wizard at developing calibrations and corrections for this finicky instrument and its idiosyncrasies, and he worked long, hard hours developing credibility for the NIMS data (and later for the VIMS data too).

Gary was an essential component to the growth and development of several graduate students and post doctoral fellows, several of whom are professional scientists in their own right today. They too, I am sure, will join in recognizing our appreciation for Gary’s contributions and his friendship.

Composed by Tom McCord

 

Our colleague and friend Bishun Khare died quietly on August 20 at the age of 80. Bishun is widely known for his early work on organic solid residues (tholins) related to the aerosols in planetary atmospheres and the interstellar medium, performed for many years at Cornell University in collaboration with Carl Sagan. Their 1984 paper gave the optical constants of Titan tholin from the X-ray to microwave region, and has served as a fundamental input to modeling work that included planetary surfaces in addition to atmospheric aerosols. That key paper has received well over 300 citations, and has stimulated much additional research on tholins, both in the US and in Europe. In 1996, Bishun moved from Cornell to NASA Ames Research Center on a Senior National Research Council fellowship, and subsequently joined the SETI Institute. He continued his research on many topics in his Ames lab, and mentored a great number of students, including supervising the thesis work of graduate students. Bishun was a patient, kind, and sharing individual, who loved to talk about science, especially the organic materials in Nature and those he could synthesize in his lab.

Composed by D. Cruikshank

 

Bruce Murray, former JPL Director, co-founder of the Planetary Society, and Caltech Emeritus Professor passed away on August 29.
In the words of JPL’s Director Charles Elachi “Bruce was JPL’s fifth Director, serving from 1976 to 1982, but his association with JPL goes back much further. He was a Caltech geologist and a key member of the Mariner 4 Imaging team that captured the first close up image of Mars in 1964. It was only the first of four planetary missions in which he played a vital role as a scientist.
Shortly after Bruce became Director, JPL was the scene for mission operations for the landings of Viking 1 and 2 on Mars. The following year Voyager 1 and 2 were launched, and Bruce led the lab through the Voyagers’ encounters at Jupiter and Saturn. He worked tirelessly to save our nation’s planetary exploration capability at a tumultuous time when there was serious talk of curtailing future missions. Along with Carl Sagan and Lou Friedman, he founded The Planetary Society. Long after returning to Caltech as a professor, he continued to be a strong voice in expressing the importance of space exploration.”

Obituaries have been posted in various websites, including The Planetary Society and the Los Angeles Times.

 

It is with great sadness that we note the unexpected passing of
Mike Wargo, Chief Exploration Scientist for NASA’s Human Exploration and Operations Mission Directorate (HEOMD). Mike was a leading contributor to NASA’s human lunar and planetary exploration program. He was involved in many lunar missions, including Lunar Reconnaissance Orbiter and the LCROSS satellite. In his nearly two decades at NASA, he received numerous awards, including the NASA Exceptional Service Medal and seven group achievement awards. He worked tirelessly to integrate science community input into human exploration planning as the primary interface with NASA’s Mars, Lunar, and Small Bodies Assessment Groups. His openness, enthusiasm and energy will be sorely missed. More extensive memoria may be found at:
http://www.lpi.usra.edu/features/wargo/

http://www.legacy.com/obituaries/nytimes/obituary.aspx?pid=166329664#fbL…

NASA is asking the International Astronomical Union to name a crater on the moon in his honor “so his name will be forever enshrined in the heavens.” Gifts may be made to MIT in memory of Michael Wargo for the Department of Materials Science Endowed Fellowship Fund by contacting Bonny Kellerman, [email protected] or at 617-253-9722.

[From the PEN]