 | Nakamura-Messenger, K., Keller, L. P., Clemett, S. J., Messenger, S., Jones, J. H., Palma, R. L., Pepin, R. O., Klock, W., Zolensky, M. E., Tatsuoka, H. (2010) Brownleeite: A new manganese silicide mineral in an interplanetary dust particle. American Mineralogist, 95 (2) 221-228 doi:10.2138/am.2010.3263 | Journal (article/letter/editorial) | | Exploration Science Directorate, NASA, Johnson Space Center, Houston, Texas 77058, U.S.A. 2 ESCG/Jacobs...interplanetary dust particle that likely originated from a comet. Three submicrometer brownleeite grains were found...of them poikilitically enclosed by Mnbearing forsterite. Owing to the small size of the brownleeite grains...system for brownleeite is cubic (a = 4.557 Ă
) with space group P213, cell volume = 94.63 Ă
3, Z = 4, density...materials available for laboratory study. Comet 26P/Grigg-Skjellerup was identified as a source of an Earth-crossing |  | | Report (issue) | | d. Optical Class: n.d. Color: n.d. Cell Data: Space Group: P213. Streak: n.d. a = 4.557 Tenacity:...particle, (IDP), that likely originated from a comet; likely formed as high-temperature condensates either...supernova explosion. Association: Mn-bearing forsterite, enstatite, FeNi sulfides, glass with embedded...Distribution: In IDP L2055I3 from the Comet 26P/Grigg-Skjellerup dust stream. Name: Honors Donald E. Brownlee...Stardust Mission that collected dust samples from Comet 81P/Wild-2 and returned them to Earth. Type Material: |  | | Journal (article/letter/editorial) | | interplanetary dust particles from comet Grigg-Skjellerup and non-Grigg Skjellerup collections Jemma DAVIDSON1...BUSEMANN1,2, and Ian A. FRANCHI1 1 Planetary and Space Sciences, The Open University, Walton Hall, Milton...when the Earth passed through the dust stream of comet 26P â GriggSkjellerup (GSC), with IDPs from nontargeted...consisting primarily of anhydrous minerals (e.g., forsterite, enstatite, glass with embedded metal and sulïŹdes...which spend most of their lifetimes in the cold outer regions of the solar system, contribute signiïŹcantly |  | Brownlee, Donald E., Clark, Benton C., A'Hearn, Michael F., Sunshine, Jessica M., Nakamura, Tomoki (2018) Flyby Missions to Comets and Return Sample Analysis. Elements, 14 (2) 87-93 doi:10.2138/gselements.14.2.87 | Journal (article/letter/editorial) | | that spew jets of gas, dust, and rocks into space. Comet surfaces differ from other small bodies because...because of their ejection of mass into space. Comet solids >2 ”m are similar to primitive meteorite ingredients...distant flybys of comet 1P/Halley in 1986. The first spacecraft encounter with a comet was the International...direct data on comet nuclei (Table 1). The visited bodies contain ices as Keywords : comet, meteorite, asteroid...active with ejection of gas, dust, and rocks into space masses (Gomes et al. 2005). With the exception of |  | | Journal (article/letter/editorial) | | distance between the Earth and the Sun], while the outer regions INTERPLANETARY DUST PARTICLES of the disk...The olivine compositions range from almost pure forsterite (Mg-olivine) to relatively high Fe-olivine, some...AMMs. The forsterite (Fo) or enstatite (En) numbers represent the mole fraction of forsterite (Mg2SiO...has also been observed in CP IDPs and in Wild 2 comet samples collected by Stardust (DobricaÌ et al. 2009)...of olivine and pyroxene could characterize the outer regions of protoplanetary disks, with the inner |  | Chornaya, Ekaterina, Zubko, Evgenij, Luk'yanyk, Igor, Kochergin, Anton, Zheltobryukhov, Maxim, Ivanova, Oleksandra V., Kornienko, Gennady, Matkin, Alexey, Baransky, Alexander, Molotov, Igor E., Sharoshchenko, Vladimir S., Videen, Gorden (2020) Imaging polarimetry and photometry of comet 21P/Giacobini-Zinner. Icarus, 337. 113471pp. doi:10.1016/j.icarus.2019.113471 | Journal (article/letter/editorial) | | Pre-proof Imaging polarimetry and photometry of comet 21P/GiacobiniZinner Ekaterina Chornaya, Evgenij... et al., Imaging polarimetry and photometry of comet 21P/Giacobini-Zinner, (2019), https://doi.org/10...Pre-proof Imaging Polarimetry and Photometry of Comet 21P/Giacobini-Zinner Ekaterina Chornaya1,2,*, Evgenij...National Academy of Sciences, Kyiv, Ukraine 7 Space Science Institute, 4750 Walnut Street, Boulder Suite...125047, Russia 9 na Department of Astronomy and Space Science, Kyung Hee University, 1732, Deogyeong-daero |  | | Journal (article/letter/editorial) | | ARTICLE IN PRESS Planetary and Space Science 56 (2008) 1719â1724 www.elsevier.com/locate/pss Dust in...3, F-91371 VerrieÌres, France b KT NASA Johnson Space Center, Houston, TX 77058, USA Received 4 August...conïŹrm, for comet 81P/Wild 2, the results from remote sensing observations. Future space missions to...2008 Elsevier Ltd. All rights reserved. Keywords: Comet; Dust; Structure; Composition; Polarimetry; Aggregate...cometary dust studies Whenever the solid part of a comet, i.e. its nucleus of ices and dust, passes close |  | | Journal (article/letter/editorial) | | E-mail: Susan.Taylor@erdc.dren.mil 2 NASA Johnson Space Center ARES, Code SR Houston, TX 77058, USA E-mail:...high-temperature phases such as Mg-rich olivine (forsterite) and chromite. The degree of heating undergone...and 26Al, which are produced by irradiation in space by solar and galactic cosmic rays. Unmelted MMs...irradiation findings point to MMs being small objects in space and not the product of meteorite ablation or fragmentation...their parents, and they are restricted in time and space. The deep sea, defi ned here as an area of low |  | | Journal (article/letter/editorial) | | cometary samples returned by the Stardust mission from comet 81P â Wild 2. Similar grains are found in primitive...similar history is likely for LIME olivines found in comet samples and in interplanetary dust particles. LIME...fayalite, 1500 K for tephroite, and 1807 K for forsterite. Finally, we note that grains of low-iron, chromiumenriched...(LICE-ol) are also observed in some samples from comet 81P â Wild 2 (Zolensky et al. 2006), and in some...metal-oxide equilibrium relations in T-RT ln Ă°pO2 Ă space from which CO â CO2, H2 â H2O, and pO2 could be |  | Nakashima, Daisuke, Ushikubo, Takayuki, Joswiak, David J., Brownlee, Donald E., Matrajt, Graciela, Weisberg, Michael K., Zolensky, Michael E., Kita, Noriko T. (2012) Oxygen isotopes in crystalline silicates of comet Wild 2: A comparison of oxygen isotope systematics between Wild 2 particles and chondritic materials. Earth and Planetary Science Letters, 357. 355-365 doi:10.1016/j.epsl.2012.09.041 | Journal (article/letter/editorial) | | com/locate/epsl Oxygen isotopes in crystalline silicates of comet Wild 2: A comparison of oxygen isotope systematics...Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, USA b c a r t i c l...Keywords: oxygen isotope ratios crystalline silicate comet 81P/Wild 2 solar system formation Stardust Abstract:...ratios of nine crystalline silicate particles from comet Wild 2 were measured to investigate oxygen isotope...accuracy of 7 0.4 mm. Three particles of Mn-rich forsterite, known as low-iron, manganese-enriched (LIME) |  | Yabuta, Hikaru, Noguchi, Takaaki, Itoh, Shoichi, Nakamura, Tomoki, Miyake, Akira, Tsujimoto, Shinichi, Ohashi, Noriaki, Sakamoto, Naoya, Hashiguchi, Minako, Abe, Ken-ichi, Okubo, Aya, Kilcoyne, A.L. David, Tachibana, Shogo, Okazaki, Ryuji, Terada, Kentaro, Ebihara, Mitsuru, Nagahara, Hiroko (2017) Formation of an ultracarbonaceous Antarctic micrometeorite through minimal aqueous alteration in a small porous icy body. Geochimica et Cosmochimica Acta, 214. 172-190 doi:10.1016/j.gca.2017.06.047 | Journal (article/letter/editorial) | | Berkeley, CA, USA 10 Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka...micrometeorites, organic matter, GEMS, aqueous alteration, comet, shock, SIMS, XANES, TEM Abstract A comprehensive...suggest that a very small amount of fluid on a comet must have been necessary for the formation of the...silicate core, a refractory organic mantle, and an outer mantle of ice (Greenberg and Li, 1997). As there...Floss et al., 2004) and IDPs from the comet 26P/GriggâSkjellerup dust stream (Busemann et al., 2009) resemble |  | | Journal (article/letter/editorial) | | diffuse interstellar medium or solar nebula, in a comet nucleus, or in circumsolar orbit as a cometary meteoroid...When still part of the debris trail of an active comet they cause a meteor shower. Either way a small fraction...the early days of IDP research was that active comet nuclei would be water-free, despite reports of layer...an agglomerate of (1) diopside, (2) Fe-bearing forsterite (Fo90-80), (3) amorphous silicates of irradiation-induced...paper), and (5) rare FeNiâsulïŹde grains. Diopside, forsterite and FeS, were detected in C-rich protoplanetary |  | | Journal (article/letter/editorial) | | is online at earth.annualreviews.org comet, Jupiter family comet, Solar System origin, Kuiper belt, meteorite...Reviews. Copyright All rights reserved Abstract Comet samples returned to Earth by the NASA Stardust mission... Wild 2, the sampled comet, appears to be a typical active Jupiter family comet, and yet most of its...family comet ( JFC), comet 81P/Wild 2, and returned them to Earth for laboratory analyses. The comet samples...spacecraft from speciïŹc Solar System bodies. The comet samples were collected during a ïŹyby encounter between |  | | Journal (article/letter/editorial) | | Planetology, Honolulu, HI 96822, USA 3 NASA Johnson Space Center, ARES, X12 2010 NASA Parkway, Houston, TX... 0000-0002-1888-7258; MEZ, 0000-0002-3181-1303 Comet dust is primitive and shows significant diversity...through remote sensing (Spitzer IR spectroscopy). Comet dust are aggregate particles of materials unequilibrated...astrophysical connections to comet dust and the clues that comet dust provide for comet origins and for planet-forming...environs: pre-solar (includes molecular cloud stage), outer nebular (after the formation of the proto-sun but |  | | Journal (article/letter/editorial) | | 01339.x Overview of the rocky component of Wild 2 comet samples: Insight into the early solar system, relationship...January 2012) AbstractâThe solid 2â10 lm samples of comet Wild 2 provide a limited but direct view of the...presolar grains are only a minor fraction of the comet. Although uncertain, the presolar grain content...accreted along with ice and organic components to form comet Wild 2. We hypothesize that Wild 2 rocky components...this may be a characteristic property of primitive outer solar system bodies made from widely transported |  | | Journal (article/letter/editorial) | | WA 98195, USA Robert M. Walker Laboratory for Space Sciences, ARES NASA JSC, 2101 NASA Parkway, Houston...spacecraft captured dust samples from the coma of comet 81P/Wild 2 (hereafter Wild 2) in a low-density silica...fragments were all MSG. Coki-C comprised one forsterite fragment and all the other fragments were MSG...with chondritic material, a Fe-sulïŹde, and a forsterite grain. The remaining fragments were all MSG (Joswiak...received from the curatorial facility at Johnson Space Center The keystones or aerogel chips were ïŹattened |  | | Journal (article/letter/editorial) | | CLEMETT1,2 1 Robert M. Walker Laboratory for Space Science, EIS Directorate, Astromaterials Research...and Exploration Science Division, NASA Johnson Space Center, Houston, Texas 77058, USA 2 ESCG/ERC Inc...temperature chemical reactions in interstellar or outer solar system environments (Aleon et al. 2003; Messenger... Mgrich crystalline silicates (enstatite and forsterite), Fe-Ni metal, equilibrated aggregates, and abundant...anorthite grain. The clinoenstatite platelets and forsterite single crystals in both particles are Mg-rich |  | | Journal (article/letter/editorial) | | Scott Messenger Robert M Walker Laboratory for Space Science, Astromaterials Research and Exploration...Exploration Science Directorate, Code KR, NASA Johnson Space Center, Houston, TX 77058, United States Received...oxygen-rich evolved stars, processing in interstellar space, and incorporation into disks around new stars,...the Earthâs stratosphere and direct samples of comet 81P/ Wild-2 returned by the Stardust spacecraft...crystalline silicates such as enstatite (MgSiO3) and forsterite (Mg2SiO4) and amorphous silicates bound by organic |  | Leitner, J., Hoppe, P., Floss, C., Hillion, F., Henkel, T. (2018) Correlated nanoscale characterization of a unique complex oxygen-rich stardust grain: Implications for circumstellar dust formation. Geochimica et Cosmochimica Acta, 221. 255-274 doi:10.1016/j.gca.2017.05.003 | Journal (article/letter/editorial) | | Hahn-Meitner-Weg 1, 55128 Mainz, Germany 2 Laboratory for Space Sciences and Physics Department, Washington University...bears large uncertainties. 3 For material from comet 81P/Wild 2, statistics are limited. A distinction...while 24Mg+ and 28Si+ appear to be enhanced in the outer region of the grain. Mg and Fe show slightly lower...the matrix abundance is dominated by a large forsterite grain located in the upper left part of the field...the next mineral species to form, followed by forsterite (Mg2SiO4), diopside (CaMgSi2O6), and enstatite |  | Rotundi, A., Rietmeijer, F. J. M., Ferrari, M., Della Corte, V., Baratta, G. A., Brunetto, R., Dartois, E., Djouadi, Z., Merouane, S., Borg, J., Brucato, J. R., Sergeant d'Hendecourt, L., Mennella, V., Palumbo, M. E., Palumbo, P. (2014) Two refractory Wild 2 terminal particles from a carrotâshaped track characterized combining
MIR
/
FIR
/Raman microspectroscopy and
FE
â
SEM
/
EDS
analyses. Meteoritics & Planetary Science, 49 (4) 550-575 doi:10.1111/maps.12274 | Journal (article/letter/editorial) | | C2112,9,171,0,0, derived from the Jupiter-family comet 81P/Wild 2 returned by the Stardust mission. Each...delivered dust ejected from the nucleus of active comet 81P/Wild 2 (hereafter © The Meteoritical Society...Society, 2014. Wild 2), a Jupiter-Family comet that accreted in the Kuiper Belt. The dust was captured at...et al. 2006). Laboratory analyses of collected comet material provide important information to several...astronomical phenomena. The isotopic compositions of comet dust are analyzed to understand to what extent they |  | | Journal (article/letter/editorial) | | during the recondensation of ejecta vapor, by space weathering, during the formation period of the solar...temperature was higher than in the upper and the outer area. In China, in the 9â8th c. BC, chimneys on...85], although these seem to be restricted to the outer zones [66]. Toasted quartz (22â30 GPa) and diaplectic...terrestrial planets, and high-velocity impacts (in space and on Earth) produce convergent results in materials...also found in the interstices of the matrix. The outer shell of the tiny globes consists of cohenite. In |  | Noguchi, T., Yabuta, H., Itoh, S., Sakamoto, N., Mitsunari, T., Okubo, A., Okazaki, R., Nakamura, T., Tachibana, S., Terada, K., Ebihara, M., Imae, N., Kimura, M., Nagahara, H. (2017) Variation of mineralogy and organic material during the early stages of aqueous activity recorded in Antarctic micrometeorites. Geochimica et Cosmochimica Acta, 208. 119-144 doi:10.1016/j.gca.2017.03.034 | Journal (article/letter/editorial) | | Fukuoka 819-0395, Japan 2 Department of Earth and Space Science, Graduate School of Science, Osaka University...molecular cloud or a very low temperature region of the outer solar system. Another two CP MMs are poorer in organic...phyllosilicate among the returned samples of 81P/Wild 2 comet, the MMs may have been derived from porous icy asteroids...show compositional variations, and the range of forsterite mol% in olivine and ferrosilite mol% in low-Ca...Stardust Track 56 (a particle derived from 81P/Wild 2 comet) (Noguchi et al., 2015; Zolensky et al., 2006; Joswiak |  | | Journal (article/letter/editorial) | | Washington 98195, USA Robert M. Walker Laboratory for Space Sciences, ARES NASA JSC, 2101 NASA Parkway, Houston...extraterrestrial materials including carbonaceous chondrites, comet 81P â Wild 2 particles collected by the Stardust...are dominated by anhydrous minerals, including forsterite, enstatite, GEMS (glass with embedded metal and...(curatorial name L2055-R-1,2,3,4,5 cluster #7) is a GriggâSkjellerup timed-collection (Messenger 2002) particle...to H, C, and N isotopic imaging with the Johnson Space Center (JSC) NanoSIMS 50L ion microprobe. For C |  | Nittler, Larry R., Alexander, Conel M.O'D., Davidson, Jemma, Riebe, My E.I., Stroud, Rhonda M., Wang, Jianhua (2018) High abundances of presolar grains and 15N-rich organic matter in CO3.0 chondrite Dominion Range 08006. Geochimica et Cosmochimica Acta, 226. 107-131 doi:10.1016/j.gca.2018.01.038 | Journal (article/letter/editorial) | | interplanetary dust particles (IDPs) and dust from comet Wild 2 brought to Earth by NASAâs Stardust spacecraft...either the Sunâs parental molecular cloud, or in the outer reaches of the nascent Solar System, where conditions...polished thin section (DOM 08006, 16) from the Johnson Space Center (Fig. 1) and analyzed it by isotopic imaging...in other meteorites as well as in some IDP and comet Wild 2 samples (dashed ellipse in Fig. 10). One...and D10 indicates a carbonaceous nanoglobule from comet Wild-2 (De Gregorio et al., 2010). The dotted lines |  | | Journal (article/letter/editorial) | | spectroscopic investigation of two grains from comet 81P â Wild 2: Information that can be obtained beyond...Planetary Sciences and McDonnell Center for the Space Sciences, Washington University, St. Louis, Missouri...returned to Earth by the NASA Stardust mission to comet 81P â Wild 2. The studied fragments originated from...discussed in detail. INTRODUCTION The comet sample return mission to comet 81P â Wild 2 (i.e., the NASA Stardust...collected ejected comet dust during its encounter with comet 81P â Wild 2 when it ïŹew past the comet at 1.86 AU |
|
