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pro vyhledávání: '"Gyngard, Frank"'
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Autor:
Heck, Philipp R., Greer, Jennika, Kööp, Levke, Trappitsch, Reto, Gyngard, Frank, Busemann, Henner, Maden, Colin, Ávila, Janaína N., Davis, Andrew M., Wieler, Rainer
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2020 Jan . 117(4), 1884-1889.
Externí odkaz:
https://www.jstor.org/stable/26897782
Autor:
Haenecour, Pierre, Floss, Christine, Jose, Jordi, Amari, Sachiko, Lodders, Katharina, Jadhav, Manavi, Wang, Alian, Gyngard, Frank
Presolar grains constitute remnants of stars that existed before the formation of the solar system. In addition to providing direct information on the materials from which the solar system formed, these grains provide ground-truth information for mod
Externí odkaz:
http://arxiv.org/abs/1606.08310
Autor:
Liu, Nan, Davis, Andrew M., Gallino, Roberto, Savina, Michael R., Bisterzo, Sara, Gyngard, Frank, Pellin, Michael J., Dauphas, Nicolas
We identify three isotopic tracers that can be used to constrain the $^{13}C$-pocket and show the correlated isotopic ratios of Sr and Ba in single mainstream presolar SiC grains. These newly measured data can be explained by postprocess AGB model ca
Externí odkaz:
http://arxiv.org/abs/1502.02732
Autor:
Liu, Nan, Savina, Michael R., Gallino, Roberto, Davis, Andrew M., Bisterzo, Sara, Gyngard, Frank, Kaeppeler, Franz, Cristallo, Sergio, Dauphas, Nicolas, Pellin, Michael J., Dillmann, Iris
We present strontium, barium, carbon, and silicon isotopic compositions of 61 acid-cleaned presolar SiC grains from Murchison. Comparison with previous data shows that acid washing is highly effective in removing both strontium and barium contaminati
Externí odkaz:
http://arxiv.org/abs/1501.05883
Autor:
Liu, Nan, Savina, Michael R., Davis, Andrew M., Gallino, Roberto, Straniero, Oscar, Gyngard, Frank, Pellin, Michael J., Willingham, David G., Dauphas, Nicolas, Pignatari, Marco, Bisterzo, Sara, Cristallo, Sergio, Herwig, Falk
Publikováno v:
Liu, N., Savina, M. R., Davis, A. M., et al. 2014, ApJ, 786, 66
We present barium, carbon, and silicon isotopic compositions of 38 acid-cleaned presolar SiC grains from Murchison. Comparison with previous data shows that acid washing is highly effective in removing barium contamination. Strong depletions in $\del
Externí odkaz:
http://arxiv.org/abs/1403.4336
Autor:
Avila, Janaina N., Ireland, Trevor R., Lugaro, Maria, Gyngard, Frank, Zinner, Ernst, Cristallo, Sergio, Holden, Peter, Rauscher, Thomas
Publikováno v:
Ap. J. Lett. 768 (2013) L18
Individual mainstream stardust silicon carbide (SiC) grains and a SiC-enriched bulk sample from the Murchison carbonaceous meteorite have been analyzed by the Sensitive High Resolution Ion Microprobe - Reverse Geometry (SHRIMP-RG) for Eu isotopes. Th
Externí odkaz:
http://arxiv.org/abs/1303.5932
Autor:
Gyngard, Frank, Zinner, Ernst, Nittler, Larry R., Morgand, Alain, Stadermann, Frank J., Hynes, K. Mairin
Publikováno v:
Astrophysical Journal 717 (2010) 107-120
We report new O isotopic data on 41 presolar oxide grains, 38 MgAl2O4 (spinel) and 3 Al2O3 from the CM2 meteorite Murray, identified with a recently developed automated measurement system for the NanoSIMS. We have also obtained Mg-Al isotopic results
Externí odkaz:
http://arxiv.org/abs/1006.4355
Publikováno v:
In Geochimica et Cosmochimica Acta 15 January 2018 221:145-161
Publikováno v:
In Geochimica et Cosmochimica Acta 15 January 2018 221:60-86