Articles with "agb stars" as a keyword



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Gas and dust from metal-rich AGB stars

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Published in 2020 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/202038289

Abstract: Context: Stars evolving through the asymptotic giant branch (AGB) phase provide significant feedback to their host system, in form of both gas enriched in nuclear-burning products and dust formed in their winds, which they eject… read more here.

Keywords: agb stars; dust; agb; metal rich ... See more keywords
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Rubidium in Barium stars

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa3888

Abstract: Barium (Ba) stars are chemically peculiar stars that display in their atmospheres signatures of the slow neutron-capture (s-process) mechanism that operates within asymptotic giant branch (AGB) stars, an important contributor to the cosmic abundance. The… read more here.

Keywords: process; barium stars; rubidium barium; agb stars ... See more keywords
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Partial mixing and the formation of 13 C pockets in AGB stars: effects on the s-process elements

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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stx1502

Abstract: The production of the elements heavier than iron via slow neutron captures (the s process) is a main feature of the contribution of asymptotic giant branch (AGB) stars of low mass (< 5 Msun) to… read more here.

Keywords: partial mixing; agb stars; mixing formation; formation pockets ... See more keywords
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On the AGB stars of M4: A robust disagreement between spectroscopic observations and theory

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty2297

Abstract: Based in part on data acquired through the AAO, via programs 09B/15, 14B/27, and 15A/21 (PI: Campbell); some of these observations were conducted by Elizabeth Wylie de Boer, Richard Stancliffe, and George Angelou. Part of… read more here.

Keywords: research council; research; agb stars; australian research ... See more keywords
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Flickering in AGB stars: probing the nature of accreting companions

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty660

Abstract: Binary companions to asymptotic giant branch (AGB) stars are an important aspect of their evolution. Few AGB companions have been detected, and in most cases it is difficult to distinguish between main-sequence and white dwarf… read more here.

Keywords: agb stars; accreting companions; stars probing; flickering agb ... See more keywords
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AGB Stars and Their Circumstellar Envelopes: An Operative Approach to Computing Their Atmospheres

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Published in 2021 at "Universe"

DOI: 10.3390/universe7090340

Abstract: The study of AGB stars necessarily covers a wide range of topics, from the primary astronomical observations to their interpretation in terms of fundamental physics. All that requires proper ad hoc methodologies, among which numerical… read more here.

Keywords: operative approach; agb stars; circumstellar envelopes; atmospheres agb ... See more keywords