^1,2Howard, C., ³Ferm, M., ^1,2Cesaratto, J., ^1,2Daigle, S., ^1,2Iliadis, C.
¹Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
²Triangle Universities Nuclear Laboratory, Durham, NC 27708, United States
³Keene State College, Keene, NH 03435, United States

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Howard C, Ferm M, Cesaretto J, Daigle S, Iliadis C (2014) Radioisotope studies of the farmville meteorite using γγ-coincidence spectrometry.
Applied Radiation and Isotopes, 94, 23-29
Link to Article [DOI: 10.1016/j.apradiso.2014.07.001]

¹Dong, T.-K., ²Yun, S.-J., ¹Ma, T., ¹Chang, J., ³Dong, W.-D., ^3,4Zhang, X.-P., ⁴Li, G.-L., ^4,5Ren, Z.-Z.
¹Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, CAS, 2 West Beijing Road, Nanjing 210008, China
²Nanjing XiaoZhuang University, 3601 Hongjing Road, Nanjing 211171, China
³Space Science Institute, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau
⁴Department of Physics, Nanjing University, Nanjing 210008, China
⁵Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Dong TK, Yun SJ, Ma T, Chang J, Dong WD, Zhang XP, Li GL, Ren ZZ (2014) Production rates of cosmogenic nuclei on the lunar surface. Chinese Physics C,38,7, 075101
Link to Article [DOI: 10.1088/1674-1137/38/7/075101]

¹Pentikäinen, H., ¹Penttilä, A., ^1,2Muinonen, K., ^1,2Peltoniemi, J.
¹Department of Physics, University of Helsinki, P.O. Box 64, FI-00014, Finland
²Finnish Geodetic Institute, Geodeetinrinne 2, P.O. Box 15, FI-02431 Masala, Finland

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Pentikäinen H, Penttilä A, Muinonen K, Peltoniemi J (2014) Spectroscopic investigations of meteorites. Journal of Quantitative Spectroscopy and Radiative Transfer 146, 391-401
Link to Article [10.1016/j.jqsrt.2014.02.007]

¹Stagno, V., ²Bindi, L., ¹Shibazaki, Y., ^3,4Tange, Y., ⁵Higo, Y.,^1,6 Mao, H.-K., ⁷Steinhardt, P.J., ¹Fei, Y.
¹Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, United States
²Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, I-50121 Florence, Italy
³Geodynamic Research Center, Ehime University, Matsuyama, Japan
⁴Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
⁵SPring-8, Japan Synchrotron Radiation Research Institute, Kouto, Hyogo 678-5198, Japan
⁶Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
⁷Department of Physics and Princeton Center for Theoretical Science, Princeton University, Princeton, NJ 08544, United States

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Stagno V, Bindi L, Shibazaki Y, Tange Y, Higo Y, Mao H-K, Steinhardt PJ, fei Y (2014) Icosahedral AlCuFe quasicrystal at high pressure and temperature and its implications for the stability of icosahedrite. Scientific Reports 4, 5869
Link to Article [DOI: 10.1038/srep05869]

¹Khalaf, S.Z., ²Yassin, A.T., ³Awadh, S.M., ⁴Jassim, R.Z.
¹College of Science, Baghdad University, Baghdad, Iraq
²Iraq Geological Survey, Najaf Bureau, Baghdad, Iraq
³Geology Department, College of Science, Baghdad University, Baghdad, Iraq
⁴Central Laboratories, Iraq Geological Survey, Baghdad, Iraq

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Khalaf SZ, Yassin AT, Awadh SM, Jassim RZ (2014) Mineralogy texture and chemistry of the Ellicott meteorite using scanning electron microscope and energy disperse spectroscopy (SEM/EDS). Arabian Journal of Geosciences (in Press)
Link to Article [10.1007/s12517-014-1572-y]

^1,2Paolo A. Sossi,^2,3Galen P. Halverson,¹Oliver Nebel, ¹Stephen M. Eggins
¹Research School of Earth Sciences, Australian National University, Canberra, Australia
²School of Earth and Environmental Sciences, University of Adelaide, Adelaide, Australia
³Department of Earth and Planetary Sciences/GEOTOP, McGill University, Montreal, Canada

Isotope ratios of heavy elements vary on the 1/10000 level in high temperature materials, providing a fingerprint of the processes behind their origin. Ensuring that the measured isotope ratio is precise and accurate depends on employing an efficient chemical purification technique and optimised analytical protocols. Exploiting the disparate speciation of Cu, Fe and Zn in HCl and HNO3, an anion exchange chromatography procedure using AG1-×8 (200–400 mesh) and 0.4 × 7 cm Teflon columns was developed to separate them from each other and matrix elements in felsic rocks, basalts, peridotites and meteorites. It required only one pass through the resin to produce a quantitative and pure isolate, minimising preparation time, reagent consumption and total analytical blanks. A ThermoFinnigan Neptune Plus MC-ICP-MS with calibrator-sample bracketing and an external element spike was used to correct for mass bias. Nickel was the external element in Cu and Fe measurements, while Cu corrected Zn isotopes. These corrections were made assuming that the mass bias for the spike and analyte element was identical, and it is shown that this did not introduce any artificial bias. Measurement reproducibilities were ± 0.03‰, ± 0.04‰ and ± 0.06‰ (2s) for δ57Fe, δ65Cu and δ66Zn, respectively.

Reference
Sossi PA, Halverson GP, Nebel O, Eggins SM (2014) Combined Separation of Cu, Fe and Zn from Rock Matrices and Improved Analytical Protocols for Stable Isotope Determination. Geostandards and Geoanalytical Research (in Press)
Link to Article [doi: 10.1111/j.1751-908X.2014.00298.x]

Published by Arrangement with John Wiley & Sons

¹Crupi, V., ²Giunta, A., ²Kellett, B., ¹Longo, F., ¹Maisano, G., ¹Majolino, D., ³Scherillo, A., Venuti, V.
¹Dipartimento di Fisica e di Scienze della Terra, Università Degli Studi di Messina, Viale Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy
²STFC RAL Space, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
³STFC RAL ISIS, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Crupi V, Giunta A, Kellett B, Longo F, Maisano G, Majolo D, Scherillo A, Venutti V (2014) Handheld and non-destructive methodologies for the compositional investigation of meteorite fragments. Analytical Methods 6, 16, 6301-6309
Link to Article [DOI: 10.1039/c4ay00253a]

^1,2M. Marsset, ²P. Vernazza, ^1,3F. Gourgeot, ¹C. Dumas, ⁴M. Birlan, ²P. Lamy, ⁵R. P. Binzel
¹European Southern Observatory (ESO), Alonso de Córdova 3107, 1900 Casilla Vitacura, Santiago, Chile
e-mail: mmarsset@eso.org
²Aix Marseille University, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, 13388 Marseille, France
³LESIA, Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris Diderot, 5 place J. Janssen, 92195 Meudon, France
⁴IMCCE, Observatoire de Paris, 77 avenue Denfert-Rochereau, 75014 Paris Cedex, France
⁵Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

Hilda asteroids and Jupiter Trojans are two low-albedo (pv ~ 0.07) populations for which the Nice model predicts an origin in the primordial Kuiper Belt region. However, recent surveys by WISE and the Spitzer Space Telescope (SST) have revealed that ~2% of these objects possess high albedos (pv ≥ 0.15), which might indicate interlopers – that is, objects not formed in the Kuiper Belt – among these two populations. Here, we report spectroscopic observations in the visible and / or near-infrared spectral ranges of twelve high-albedo (pv > 0.15) Hilda asteroids and Jupiter Trojans. These twelve objects have spectral properties similar to those of the low-albedo population, which suggests a similar composition and hence a similar origin for low- and high-albedo Hilda asteroids and Jupiter Trojans. We therefore propose that most high albedos probably result from statistical bias or uncertainties that affect the WISE and SST measurements. However, some of the high albedos may be true and the outcome of some collision-induced resurfacing by a brighter material that could include water ice. Future work should attempt to investigate the nature of this supposedly bright material. The lack of interlopers in our sample allows us to set an upper limit of 0.4% at a confidence level of 99.7% on the abundance of interlopers with unexpected taxonomic classes (e.g., A-, S-, V-type asteroids) among these two populations.

Reference
Marset M, Vernazza P, Gourgeot F, Dumas C, Birlan M, Lamy P, Binzel RP (2014) Similar origin for low- and high-albedo Jovian Trojans and Hilda asteroids? Astronomy & Astrophysics 568, L7
Link to Article [doi.org/10.1051/0004-6361/201424105]

Reproduced with permission (C)ESO

¹D. Perna, ²A. Alvarez-Candal, ^1,3S. Fornasier, ^1,4Z. Kaňuchová, ⁵S. M. Giuliatti Winter, ⁵E. Vieira Neto, ⁵O. C. Winter
¹LESIA – Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 place J. Janssen 92195 Meudon France
e-mail: davide.perna@obspm.fr
²Observatório Nacional, rua General José Cristino 77, 20921-400 Rio de Janeiro, Brazil
³Université Paris Diderot – Paris 7, 4 rue Elsa Morante, 75013 Paris, France
⁴Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovak Republic
⁵Universidade Estadual Paulista, Grupo de Dinâmica Orbital & Planetologia, CEP 12516-410, SP Guaratinguetà, Brazil

Context. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.
Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.
Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.
Results. We find B-type, featureless convex spectra (Themis- or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic- and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.
Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation.

Reference
Perna D, Alvarez-Candal A. Fornasier S, Kaňuchová Z, Giulatti Winter SM, Viera Neto E, Winer OC (2014) The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space Mission. Astronomy&Astrophysics, 568 (in Press)
Link to Article [dx.doi.org/10.1051/0004-6361/201424447]

Reproduced with permission (C)ESO

¹Guillermo Gonzalez
¹Department of Physics and Astronomy, Ball State University, Muncie, IN 47306 USA

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Gonzalez G (2014) Solar system chemical abundances corrected for systematics. Monthly Notices of the Royal Astronomical Society: Letters, 443, L99-L103.
Link to Article [doi: 10.1093/mnrasl/slu083]