Search Results - "Mumma, Michael J."
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The Chemical Composition of Comets-Emerging Taxonomies and Natal Heritage
Published in Annual review of astronomy and astrophysics (01-01-2011)“…Cometary nuclei contain the least modified material from the formative epoch of our planetary system, and their compositions reflect a range of processes…”
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Strong Release of Methane on Mars in Northern Summer 2003
Published in Science (American Association for the Advancement of Science) (20-02-2009)“…Living systems produce more than 90% of Earth's atmospheric methane; the balance is of geochemical origin. On Mars, methane could be a signature of either…”
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The Ice Chemistry in Comets and Planet-forming Disks: Statistical Comparison of CH3OH, H2CO, and NH3 Abundance Ratios
Published in Astrophysical journal. Letters (01-07-2024)“…Comets are frozen remnants of our solar system’s formation, and comparing their chemical composition to that of planet-forming systems can reveal crucial…”
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Radiation Tolerance of Nanopore Sequencing Technology for Life Detection on Mars and Europa
Published in Scientific reports (29-03-2019)“…The search for life beyond Earth is a key motivator in space exploration. Informational polymers, like DNA and RNA, are key biosignatures for life as we know…”
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Strong Variability of Martian Water Ice Clouds During Dust Storms Revealed From ExoMars Trace Gas Orbiter/NOMAD
Published in Journal of geophysical research. Planets (01-04-2020)“…Observations of water ice clouds and aerosols on Mars can provide important insights into the complexity of the water cycle. Recent observations have indicated…”
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CHEMICAL COMPOSITION OF COMET C/2007 N3 (LULIN): ANOTHER ATYPICAL COMET
Published in The Astrophysical journal (10-05-2012)“…We measured the volatile chemical composition of comet C/2007 N3 (Lulin) on three dates from 2009 January 30 to February 1 using NIRSPEC, the high-resolution…”
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Reservoirs for Comets: Compositional Differences Based on Infrared Observations
Published in Space science reviews (01-07-2008)“…Tracing measured compositions of comets to their origins continues to be of keen interest to cometary scientists and to dynamical modelers of Solar System…”
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ALMA Detection and Astrobiological Potential of Vinyl Cyanide on Titan
Published in Science advances (01-07-2017)“…Recent simulations have indicated that vinyl cyanide is the best candidate molecule for the formation of cell membranes/vesicle structures in Titan's…”
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Identification of a new band system of isotopic CO2 near 3.3 μm : Implications for remote sensing of biomarker gases on Mars
Published in Icarus (New York, N.Y. 1962) (01-05-2008)Get full text
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Parent Volatiles in Comet 9P/Tempel 1: Before and After Impact
Published in Science (American Association for the Advancement of Science) (14-10-2005)“…We quantified eight parent volatiles (H₂O, C₂H₆, HCN, CO, CH₃OH, H₂CO, C₂H₂, and CH₄) in the Jupiter-family comet Tempel 1 using high-dispersion infrared…”
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High-resolution infrared spectroscopic measurements of Comet 2P/Encke: Unusual organic composition and low rotational temperatures
Published in Icarus (New York, N.Y. 1962) (01-03-2013)“…► We present high-resolution infrared spectroscopic measurements of Comet 2P/Encke. ► 2P/Encke is a dynamical end-member because of its short period of…”
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A Search for Variation in the H2O Ortho-Para Ratio and Rotational Temperature in the Inner Coma of Comet C/2004 Q2 (Machholz)
Published in The Astrophysical journal (20-05-2007)Get full text
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Discovery of OH in Circumstellar Disks around Young Intermediate-Mass Stars
Published in The Astrophysical journal (01-07-2008)“…We detect emission from multiple low-excitation rovibrational transitions of OH from the two Herbig Ae stars AB Aurigae and MWC 758 in the 3.0-3.7 mu m…”
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The Peculiar Volatile Composition of Comet 8P/Tuttle: A Contact Binary of Chemically Distinct Cometesimals?
Published in The Astrophysical journal (10-06-2008)“…We report measurements of eight native (i.e., released directly from the comet nucleus) volatiles (H sub(2)O, HCN, CH sub(4), C sub(2)H sub(2), C sub(2)H…”
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The organic composition of Comet C/2000 WM1 (LINEAR) revealed through infrared spectroscopy
Published in Icarus (New York, N.Y. 1962) (01-04-2010)“…We investigated the parent volatile composition of the Oort cloud Comet C/2000 WM1 (LINEAR) on 23a"25 November 2001, using the Near Infrared Echelle…”
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A Comprehensive Study of Infrared OH Prompt Emission in Two Comets. II. Implications for Unimolecular Dissociation of H2O
Published in The Astrophysical journal (10-12-2006)Get full text
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Organic Volatiles in Comet 73P-B/Schwassmann-Wachmann 3 Observed during Its Outburst: A Clue to the Formation Region of the Jupiter-Family Comets
Published in The Astrophysical journal (10-10-2007)“…We report the chemical composition of organic molecules in fragment B of comet 73P/Schwassmann-Wachmann 3 (SW3). Comet SW3 is a Jupiter-family comet that split…”
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D/H ratio during the northern polar summer and what the Phoenix mission might measure
Published in Journal of Geophysical Research - Planets (01-03-2008)“…The Phoenix polar mission will land close to 68°N, 233°E in May 2008 at Ls ∼ 75 and operate 90 sols until Ls ∼ 125 with possible extension to Ls ∼ 142. Phoenix…”
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The Volatile Composition of the Split Ecliptic comet 73P/Schwassmann-Wachmann 3: A Comparison of Fragments C and B
Published in The Astrophysical journal (10-10-2006)“…The composition of fragments C and B of the Jupiter-family comet 73P/Schwassmann-Wachmann 3 (SW3) was investigated in early April of 2006 at IR wavelengths…”
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The Composition of Comets
Published in Space science reviews (01-12-2015)“…This paper is the result of the International Cometary Workshop, held in Toulouse, France in April 2014, where the participants came together to assess our…”
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