Search Results - "Aringer, Bernhard"

A NEW GENERATION OF PARSEC-COLIBRI STELLAR ISOCHRONES INCLUDING THE TP-AGB PHASE by Marigo, Paola, Girardi, Léo, Bressan, Alessandro, Rosenfield, Philip, Aringer, Bernhard, Chen, Yang, Dussin, Marco, Nanni, Ambra, Pastorelli, Giada, Rodrigues, Thaíse S., Trabucchi, Michele, Bladh, Sara, Dalcanton, Julianne, Groenewegen, Martin A. T., Montalbán, Josefina, Wood, Peter R.

“…We introduce a new generation of PARSEC-COLIBRI stellar isochrones that includes a detailed treatment of the thermally pulsing asymptotic giant branch (TP-AGB)…”
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ÆSOPUS 2.0: Low-temperature Opacities with Solid Grains by Marigo, Paola, Woitke, Peter, Tognelli, Emanuele, Girardi, Léo, Aringer, Bernhard, Bressan, Alessandro

“…Abstract In this study we compute the equation of state and Rosseland mean opacity from temperatures of T ≃ 30,000 K down to T ≃ 400 K, pushing the…”
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Carbon star formation as seen through the non-monotonic initial–final mass relation by Marigo, Paola, Cummings, Jeffrey D., Curtis, Jason Lee, Kalirai, Jason, Chen, Yang, Tremblay, Pier-Emmanuel, Ramirez-Ruiz, Enrico, Bergeron, Pierre, Bladh, Sara, Bressan, Alessandro, Girardi, Léo, Pastorelli, Giada, Trabucchi, Michele, Cheng, Sihao, Aringer, Bernhard, Tio, Piero Dal

“…The initial–final mass relation (IFMR) links the birth mass of a star to the mass of the compact remnant left at its death. While the relevance of the IFMR…”
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Constraining dust properties in circumstellar envelopes of C-stars in the Small Magellanic Cloud: optical constants and grain size of carbon dust by Nanni, Ambra, Marigo, Paola, Groenewegen, Martin A. T., Aringer, Bernhard, Girardi, Léo, Pastorelli, Giada, Bressan, Alessandro, Bladh, Sara

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Updated Low-temperature Gas Opacities with ÆSOPUS 2.0 by Marigo, Paola, Aringer, Bernhard, Girardi, Léo, Bressan, Alessandro

“…Abstract This work introduces new low-temperature gas opacities in the range 3.2 ≲ log ( T / K ) ≲ 4.5 computed with the Æ SOPUS code under the assumption of…”
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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Aringer, Bernhard, Bladh, Sara, Bressan, Alessandro, Montalbán, Josefina, Boyer, Martha L, Dalcanton, Julianne J, Eriksson, Kjell, Groenewegen, Martin A T, Höfner, Susanne, Lebzelter, Thomas, Nanni, Ambra, Rosenfield, Philip, Wood, Peter R, Cioni, Maria-Rosa L

“…Abstract The thermally pulsing asymptotic giant branch (TP-AGB) experienced by low- and intermediate-mass stars is one of the most uncertain phases of stellar…”
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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Aringer, Bernhard, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Bladh, Sara, Boyer, Martha L, Bressan, Alessandro, Dalcanton, Julianne J, Groenewegen, Martin A T, Lebzelter, Thomas, Mowlavi, Nami, Chubb, Katy L, Cioni, Maria-Rosa L, de Grijs, Richard, Ivanov, Valentin D, Nanni, Ambra, van Loon, Jacco Th, Zaggia, Simone

“…ABSTRACT Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our…”
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Estimating the dust production rate of carbon stars in the Small Magellanic Cloud by Nanni, Ambra, Marigo, Paola, Girardi, Léo, Rubele, Stefano, Bressan, Alessandro, Groenewegen, Martin A. T., Pastorelli, Giada, Aringer, Bernhard

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The mass-loss, expansion velocities, and dust production rates of carbon stars in the Magellanic Clouds by Nanni, Ambra, Groenewegen, Martin A T, Aringer, Bernhard, Rubele, Stefano, Bressan, Alessandro, van Loon, Jacco Th, Goldman, Steven R, Boyer, Martha L

“…ABSTRACT The properties of carbon stars in the Magellanic Clouds (MCs) and their total dust production rates are predicted by fitting their spectral energy…”
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EVOLUTION OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS. IV. CONSTRAINING MASS LOSS AND LIFETIMES OF LOW MASS, LOW METALLICITY AGB STARS by Rosenfield, Philip, Marigo, Paola, Girardi, Leo, Dalcanton, Julianne J, Bressan, Alessandro, GULLIEUSZIK, MARCO, Weisz, Daniel, Williams, Benjamin F, Dolphin, Andrew, Aringer, Bernhard

“…The evolution and lifetimes of thermally pulsating asymptotic giant branch (TP-AGB) stars suffer from significant uncertainties. In this work, we analyze the…”
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Evolutionary Models for Ultracool Dwarfs by Fernandes, Catarina S., Van Grootel, Valérie, Salmon, Sébastian J. A. J., Aringer, Bernhard, Burgasser, Adam J., Scuflaire, Richard, Brassard, Pierre, Fontaine, Gilles

“…Ultracool dwarfs (UCDs) have emerged as key targets for searches of transiting exoplanets. Precise estimates of the host parameters (including mass, age, and…”
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THE PTI CARBON STAR ANGULAR SIZE SURVEY: EFFECTIVE TEMPERATURES AND NON-SPHERICITY by Van Belle, Gerard T, Paladini, Claudia, Aringer, Bernhard, Hron, Josef, Ciardi, David

“…We report new interferometric angular diameter observations of 41 carbon stars observed with the Palomar Testbed Interferometer. Two of these stars are CH…”
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Constraining dust properties in circumstellar envelopes of C-stars in the Small Magellanic Cloud: optical constants and grain size of carbon dust by Nanni, Ambra, Marigo, Paola, Groenewegen, Martin A. T., Aringer, Bernhard, Girardi, Léo, Pastorelli, Giada, Bressan, Alessandro, Bladh, Sara

“…We present a new approach aimed at constraining the typical size and optical properties of carbon dust grains in circumstellar envelopes (CSEs) of carbon-rich…”
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Synthetic photometry for carbon-rich giants. V. Effects of grain-size-dependent dust opacities by Eriksson, Kjell, Höfner, Susanne, Aringer, Bernhard

“…A&A 673, A21 (2023) The properties and the evolution of asymptotic giant branch (AGB) stars are strongly influenced by their mass loss through a stellar wind…”
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Low-Temperature Gas Opacities with AESOPUS 2.0 by Marigo, Paola, Aringer, Bernhard, Girardi, Leo, Bressan, Alessandro

“…This work introduces new low-temperature gas opacities, in the range 3.2 <= log(T/K) <= 4.5, computed with the AESOPUS code under the assumption of…”
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Dynamic atmospheres and winds of cool luminous giants, II. Gradual Fe enrichment of wind-driving silicate grains by Höfner, Susanne, Bladh, Sara, Aringer, Bernhard, Eriksson, Kjell

“…A&A 657, A109 (2022) The winds observed around AGB stars are generally attributed to radiation pressure on dust formed in the dynamical atmospheres of these…”
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A multi-method approach to the outer layers of AGB stars by Nowotny, Walter, Aringer, Bernhard, Höfner, Susanne, Hron, Josef, Kerschbaum, Franz

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Carbon stars with increased oxygen and nitrogen abundances: hydrostatic dust-free model atmospheres by Aringer, Bernhard, Marigo, Paola, Nowotny, Walter, Girardi, Leo, Mecina, Marko, Nanni, Ambra

“…We have computed a grid of hydrostatic spherical COMARCS models for C stars covering metallicities from [Z/H]=0 to -2 and values of the carbon excess [C-O]…”
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How important are metal-poor AGB stars as cosmic dust producers? by Mattsson, Lars, Aringer, Bernhard, Andersen, Anja C

“…The efficiency of dust formation in oxygen-rich AGB stars should (in theory) be metallicity dependent since they are not producing their own raw material for…”
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Dynamic atmospheres and winds of cool luminous giants, I. Al$_2$O$_3$ and silicate dust in the close vicinity of M-type AGB stars by Höfner, Susanne, Bladh, Sara, Aringer, Bernhard, Ahuja, Rajeev

“…A&A 594, A108 (2016) High spatial resolution techniques have given valuable insights into the mass loss mechanism of AGB stars, which presumably involves a…”
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