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Long-Period Variables as distance and age indicators in the era of Gaia and LSST

Published online by Cambridge University Press:  06 February 2024

Michele Trabucchi Open the ORCID record for Michele Trabucchi [Opens in a new window]
Michele Trabucchi*
Affiliation:
Dipartimento di Fisica e Astronomia Galileo Galilei, Università degli studi di Padova, Vicolo dell’Osservatorio 3, I-35122 Padova, Italy Department of Astronomy, University of Geneva, Ch. Pegasi 51, 1920 Versoix, Switzerland
*
email: michele.trabucchi@unipd.it
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Abstract

Long-period variables are bright, evolved red giant stars showing periodic photometric changes due to stellar pulsation. They follow one or more period-luminosity and period-age relations, which make them highly promising distance indicators and tracers of young and intermediate-age stellar populations. Such a potential is especially interesting in view of the massive amount of data delivered by modern large-scale variability surveys. Crucially, these applications require a clear theoretical understanding of pulsation physics in connection with stellar evolution. Here, I describe an ongoing effort from our collaboration dedicated to the modelling of stellar pulsation in evolved stars, and how this work is impacting our capability of investigating long-period variables and exploiting them for other astrophysical studies. Furthermore, I present our ongoing work aimed at assessing the potential of semi-regular variables, an often neglected sub-type of long-period variables, to be distance indicators complementary to their better-known, more evolved counterparts, the Mira variables.

Keywords

stars: AGB and post-AGB starsstars: oscillationsstars: variables: generalstars: distances
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S376: At the crossroads of astrophysics and cosmology: Period–luminosity relations in the 2020s , December 2022 , pp. 306 - 318
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

Ahmad, A., Freytag, B., & Höfner, S. 2023, Astronomy & Astrophysics, 669, A49 Google Scholar
Bladh, S., Liljegren, S., Höfner, S., Aringer, B., & Marigo, P. 2019, Astronomy & Astrophysics, 626, A100 Google Scholar
Dal Tio, P., Pastorelli, G., Mazzi, A., et al. 2022, Astrophysical Journal, Supplements, 262, 22 Google Scholar
Eggen, O. J. 1998, Astronomical Journal, 115, 2435 Google Scholar
Feast, M. W. 1963, Monthly Notices of the Royal Astronomical Society, 125, 367 Google Scholar
Feast, M. W. & Whitelock, P. A. 1987, in Late Stages of Stellar Evolution, ed. Kwok, S. & Pottasch, S. R., 33Google Scholar
Grady, J., Belokurov, V., & Evans, N. W. 2019, Monthly Notices of the Royal Astronomical Society, 483, 3022 Google Scholar
Jayasinghe, T., Kochanek, C. S., Stanek, K. Z., et al. 2021, Monthly Notices of the Royal Astronomical Society, 503, 200 CrossRefGoogle Scholar
Kamath, D., Wood, P. R., Soszyński, I., & Lebzelter, T. 2010, Monthly Notices of the Royal Astronomical Society, 408, 522 Google Scholar
Keller, S. C. & Wood, P. R. 2006, Astrophysical Journal, 642, 834 Google Scholar
Lebzelter, T. & Hinkle, K. H. 2002, Astronomy & Astrophysics, 393, 563 Google Scholar
Lebzelter, T., Mowlavi, N., Lecoeur-Taibi, I., et al. 2022, arXiv e-prints, arXiv:2206.05745Google Scholar
Lebzelter, T., Mowlavi, N., Marigo, P., et al. 2018, Astronomy & Astrophysics, 616, L13 Google Scholar
Lebzelter, T. & Wood, P. R. 2005, Astronomy & Astrophysics, 441, 1117 Google Scholar
Marigo, P. & Girardi, L. 2007, Astronomy & Astrophysics, 469, 239 Google Scholar
Marigo, P., Girardi, L., Bressan, A., et al. 2017, Astrophysical Journal, 835, 77 Google Scholar
McDonald, I. & Trabucchi, M. 2019, Monthly Notices of the Royal Astronomical Society, 484, 4678 Google Scholar
Merrill, P. W. 1923, Astrophysical Journal, 58, 215 Google Scholar
Pastorelli, G., Marigo, P., Girardi, L., et al. 2020, Monthly Notices of the Royal Astronomical Society, 498, 3283 Google Scholar
Pastorelli, G., Marigo, P., Girardi, L., et al. 2019, Monthly Notices of the Royal Astronomical Society, 485, 5666 Google Scholar
Reid, M. J. & Goldston, J. E. 2002, Astrophysical Journal, 568, 931 Google Scholar
Riess, A. G., Yuan, W., Casertano, S., Macri, L. M., & Scolnic, D. 2020, Astrophysical Journal, Letters, 896, L43 Google Scholar
Sanders, J. L., Matsunaga, N., Kawata, D., et al. 2022, Monthly Notices of the Royal Astronomical Society, 517, 257 Google Scholar
Soszyński, I., Olechowska, A., Ratajczak, M., et al. 2021, Astrophysical Journal, Letters, 911, L22 Google Scholar
Soszyński, I., Udalski, A., Szymański, M. K., et al. 2009, Acta Astronomica, 59, 239 Google Scholar
Soszyński, I., Wood, P. R., & Udalski, A. 2013, Astrophysical Journal, 779, 167 Google Scholar
Trabucchi, M., Lebzelter, T., Mowlavi, N., et al. 2020, in Stars and their Variability Observed from Space, ed. Neiner, C., Weiss, W. W., Baade, D., Griffin, R. E., Lovekin, C. C., & Moffat, A. F. J., 87–90Google Scholar
Trabucchi, M. & Mowlavi, N. 2022, Astronomy & Astrophysics, 658, L1 Google Scholar
Trabucchi, M., Mowlavi, N., & Lebzelter, T. 2021a, Astronomy & Astrophysics, 656, A66 Google Scholar
Trabucchi, M., Wood, P. R., Montalbán, J., et al. 2017, Astrophysical Journal, 847, 139 Google Scholar
Trabucchi, M., Wood, P. R., Montalbán, J., et al. 2019, Monthly Notices of the Royal Astronomical Society, 482, 929 Google Scholar
Trabucchi, M., Wood, P. R., Mowlavi, N., et al. 2021b, Monthly Notices of the Royal Astronomical Society, 500, 1575 Google Scholar
Udalski, A., Szymanski, M., Kaluzny, J., Kubiak, M., & Mateo, M. 1992, Acta Astronomica, 42, 253 Google Scholar
Wilson, R. E. & Merrill, P. W. 1942, Astrophysical Journal, 95, 248 Google Scholar
Wood, P. R. 1974, Astrophysical Journal, 190, 609 Google Scholar
Wood, P. R. 2000, Publications of the Astron. Soc. of Australia, 17, 18Google Scholar
Wood, P. R. 2015, Monthly Notices of the Royal Astronomical Society, 448, 3829 Google Scholar
Wood, P. R. & Olivier, E. A. 2014, Monthly Notices of the Royal Astronomical Society, 440, 2576 Google Scholar
Wray, J. J., Eyer, L., & Paczyński, B. 2004, Monthly Notices of the Royal Astronomical Society, 349, 1059 Google Scholar
Wyatt, S. P. & Cahn, J. H. 1983, Astrophysical Journal, 275, 225 Google Scholar
Xiong, D. R., Deng, L., & Zhang, C. 2018, Monthly Notices of the Royal Astronomical Society, 480, 2698 Google Scholar
Ya’Ari, A. & Tuchman, Y. 1996, Astrophysical Journal, 456, 350 Google Scholar
Yu, J., Bedding, T. R., Stello, D., et al. 2020, Monthly Notices of the Royal Astronomical Society, 493, 1388 Google Scholar