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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud

Pastorelli, Giada (author)
STScI, 3700 San Martin Dr, Baltimore, MD 21218 USA.;Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Marigo, Paola (author)
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Girardi, Leo (author)
Osservatorio Astron Padova INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy.
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Aringer, Bernhard (author)
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Chen, Yang (author)
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Rubele, Stefano (author)
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.;Osservatorio Astron Padova INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy.
Trabucchi, Michele (author)
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.;Univ Geneva, Dept Astron, Ch Maillettes 51, CH-1290 Versoix, Switzerland.
Bladh, Sara, 1974- (author)
Uppsala universitet,Teoretisk astrofysik,Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy.
Boyer, Martha L. (author)
STScI, 3700 San Martin Dr, Baltimore, MD 21218 USA.
Bressan, Alessandro (author)
SISSA, Via Bonomea 365, I-34136 Trieste, Italy.
Dalcanton, Julianne J. (author)
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA.
Groenewegen, Martin A. T. (author)
Koninklijke Sterrenwacht Belgie, Ringlaan 3, B-1180 Brussels, Belgium.
Lebzelter, Thomas (author)
Univ Vienna, Dept Astrophys, Tuerkenschanzstr 17, A-1180 Vienna, Austria.
Mowlavi, Nami (author)
Univ Geneva, Dept Astron, Ch Maillettes 51, CH-1290 Versoix, Switzerland.
Chubb, Katy L. (author)
SRON Netherlands Inst Space Res, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands.
Cioni, Maria-Rosa L. (author)
Leibniz Inst Astrophys Potsdam, Sternwarte 16, D-14482 Potsdam, Germany.
de Grijs, Richard (author)
Macquarie Univ, Dept Phys & Astron, Balaclava Rd, Sydney, NSW 2109, Australia.;Macquarie Univ, Res Ctr Astron Astrophys & Astrophoton, Balaclava Rd, Sydney, NSW 2109, Australia.;Int Space Sci Inst Beijing, 1 Nanertiao, Beijing 100190, Peoples R China.
Ivanov, Valentin D. (author)
European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany.
Nanni, Ambra (author)
Aix Marseille Univ, CNRS, CNES, LAM, 38 Rue Freder Joliot Curie, F-13388 Marseille 13, France.
van Loon, Jacco Th (author)
Keele Univ, Lennard Jones Labs, Keele ST5 5BG, Staffs, England.
Zaggia, Simone (author)
Osservatorio Astron Padova INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy.
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STScI, 3700 San Martin Dr, Baltimore, MD 21218 USA;Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy. Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy. (creator_code:org_t)
2020-08-22
2020
English.
In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 498:3, s. 3283-3301
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our interpretation of the spectral energy distribution of galaxies, cosmic dust production, and enrichment of the interstellar medium. With the aim of improving sets of stellar isochrones that include a detailed description of the TP-AGB phase, we extend our recent calibration of the AGB population in the Small Magellanic Cloud (SMC) to the more metal-rich Large Magellanic Cloud (LMC). We model the LMC stellar populations with the TRILEGAL code, using the spatially resolved star formation history derived from the VISTA survey. We characterize the efficiency of the third dredge-up by matching the star counts and the K-s-band luminosity functions of the AGB stars identified in the LMC. In line with previous findings, we confirm that, compared to the SMC, the third dredge-up in AGB stars of the LMC is somewhat less efficient, as a consequence of the higher metallicity. The predicted range of initial mass of C-rich stars is between M-i approximate to 1.7 and 3 M-circle dot at Z(i) = 0.008. We show how the inclusion of new opacity data in the carbon star spectra will improve the performance of our models. We discuss the predicted lifetimes, integrated luminosities, and mass-loss rate distributions of the calibrated models. The results of our calibration are included in updated stellar isochrones publicly available.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

stars: AGB and post-AGB
stars: evolution
Magellanic Clouds

Publication and Content Type

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