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- Max Planck SocietyDE18 papers
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9 papers · 1 filter
Aluminum-, Calcium- And Titanium-Rich Oxide Stardust In Ordinary Chondrite Meteorites
Larry R. Nittler, Conel M. O'D. Alexander, Roberto Gallino +4
We report isotopic data for a total of 96 presolar oxide grains found in residues of several unequilibrated ordinary chondrite meteorites. Identified grain types include Al2O3, MgA…
Nucleosynthesis in the Early Galaxy
F. Montes, T. C. Beers, J. Cowan +8
Recent observations of r-process-enriched metal-poor star abundances reveal a non-uniform abundance pattern for elements . Based on non-correlation trends between elementa…
Explorations of the r-Processes: Comparisons between Calculations and Observations of Low-Metallicity Stars
Karl-Ludwig Kratz, Khalil Farouqi, Bernd Pfeiffer +3
Abundances of heavier elements (barium and beyond) in many neutron-capture-element-rich halo stars accurately replicate the solar system r-process pattern. However, abundances of l…
On the asymptotic giant branch star origin of peculiar spinel grain OC2
M. Lugaro, A. I. Karakas, L. R. Nittler +4
Microscopic presolar grains extracted from primitive meteorites have extremely anomalous isotopic compositions revealing the stellar origin of these grains. The composition of pres…
Heating in the Accreted Neutron Star Ocean: Implications for Superburst Ignition
Sanjib Gupta, Edward F. Brown, Hendrik Schatz +2
We perform a self-consistent calculation of the thermal structure in the crust of a superbursting neutron star. In particular, we follow the nucleosynthetic evolution of an accrete…
The abundance of 36S in IRC+10216 and its production in the Galaxy
R. Mauersberger, U. Ott, C. Henkel +2
The J=2-1 and 3-2 rotational lines of the rare isotopomer C36S and the J=5-4 and 6-5 transitions of Si36S were detected in the carbon star IRC+10216 (CW Leo). These are the first d…