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of 7
pro vyhledávání: '"Hampel, Melanie"'
Autor:
Lugaro, Maria, Cseh, Borbála, Világos, Blanka, Karakas, Amanda I., Ventura, Paolo, Dell'Agli, Flavia, Trappitsch, Reto, Hampel, Melanie, D'Orazi, Valentina, Pereira, Claudio B., Tagliente, Giuseppe, Szabó, Gyula M., Pignatari, Marco, Battino, Umberto, Tattersall, Ashley, Ek, Mattias, Schönbächler, Maria, Hron, Josef, Nittler, Larry R.
Stardust grains that originated in ancient stars and supernovae are recovered from meteorites and carry the detailed composition of their astronomical sites of origin. We present evidence that the majority of large ($\mu$m-sized) meteoritic silicon c
Externí odkaz:
http://arxiv.org/abs/2006.11101
Autor:
Skúladóttir, Ása, Hansen, Camilla Juul, Choplin, Arthur, Salvadori, Stefania, Hampel, Melanie, Campbell, Simon W.
Publikováno v:
A&A 634, A84 (2020)
The slow ($s$) and intermediate ($i$) neutron ($n$) capture processes occur both in asymptotic giant branch (AGB) stars, and in massive stars. To study the build-up of the $s$- and $i$-products at low metallicity, we investigate the abundances of Y,
Externí odkaz:
http://arxiv.org/abs/1912.06671
Autor:
Hampel, Melanie, Karakas, Amanda I., Stancliffe, Richard J., Meyer, Bradley S., Lugaro, Maria
Lead (Pb) is predominantly produced by the slow neutron-capture process (s process) in asymptotic giant branch (AGB) stars. In contrast to significantly enhanced Pb abundances predicted by low-mass, low-metallicity AGB-models, observations of Magella
Externí odkaz:
http://arxiv.org/abs/1910.11882
Carbon-enhanced metal-poor (CEMP) stars in the Galactic Halo display enrichments in heavy elements associated with either the s (slow) or the r (rapid) neutron-capture process (e.g., barium and europium respectively), and in some cases they display e
Externí odkaz:
http://arxiv.org/abs/1608.08634
We present a new theoretical estimate for the birthrate of R Coronae Borealis (RCB) stars that is in agreement with recent observational data. We find the current Galactic birthrate of RCB stars to be $\approx$ 25% of the Galactic rate of Type Ia sup
Externí odkaz:
http://arxiv.org/abs/1507.06367
Autor:
HAMPEL, MELANIE
To understand the chemical history of our Universe abundances of elements heavier than iron are observed in the photospheres of old stars. The vast majority of heavy elements are formed by the slow (s) and rapid (r) neutron-capture processes. However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b2f11518ab48b9b0d18c45fafa1fe1c
Akademický článek
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