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A multiphase study of classical Cepheids in the Magellanic Clouds- Models and Observations

Published online by Cambridge University Press:  06 February 2024

Kerdaris Kurbah*
Affiliation:
Department of Physics, Cotton University, Guwahati, Assam, 781001, India
Shashi M. Kanbur
Affiliation:
Department of Physics, State University of New York, Oswego, NY 23126, USA
Sukanta Deb
Affiliation:
Department of Physics, Cotton University, Guwahati, Assam, 781001, India
Susmita Das
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network (ELKH), Konkoly-Thege Miklós út 15-17, H-1121, Budapest, Hungary
Mami Deka
Affiliation:
Department of Physics, Cotton University, Guwahati, Assam, 781001, India
Anupam Bhardwaj
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, I-801301, Napoli, Italy
Hugh Riley Randal
Affiliation:
Department of Physics, State University of New York, Oswego, NY 23126, USA
Selim Kalici
Affiliation:
Department of Physics, State University of New York, Oswego, NY 23126, USA

Abstract

This work presents the study of multiphase relations of classical Cepheids in the Magellanic Clouds for short periods (log P < 1) and long periods (log P > 1). From the analysis, it has been found that the multiphase relations obtained using the models as well as observations are highly dynamic with pulsational phase. The multiphase relations for short and long periods are found to display contrasting behaviour for both LMC and SMC. It has been observed that the multiphase relations obtained using the models agree better with the observations in the PC plane in most phases in comparison to the PL plane. Multiphase relations obtained using the models display a clear distinction among different convection sets in most phases. Comparison of models and observations in the multiphase plane is one way to test the models with the observations and to constrain the theory of stellar pulsation.

Type
Contributed Paper
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

Anderson, Richard I. and Ekström, Sylvia and Georgy, et al., 2014, A& A, 564, 100 Google Scholar
Bono, Giuseppe and Caputo, Filippina and Marconi, M., et al., 1998, ApJ, 497, L43Google Scholar
Bono, Giuseppe and Caputo, et al., 1999, ApJ, 512, 711 Google Scholar
Bono, G. and Marconi, M. and Stellingwerf, R. F., 2000, A& A, 360, 245 Google Scholar
Caputo, F. and Marconi, M. and Musella, I. and Santolamazza, P., 2000, A& A, 359, 1059 Google Scholar
Caputo, F. and Marconi, M. and Musella, I., 2000, A& A, 354, 610 Google Scholar
Cardelli, Jason A. and Clayton, Geoffrey C. and Mathis, John S., 1989, ApJ, 345, 245 Google Scholar
Deb, S. and Singh, H. P. 2009, A& A, 507, 1729 Google Scholar
Das, Susmita and Kanbur, Shashi M. and Bellinger, Earl P., et al., 2020, MNRAS, 493, 29 Google Scholar
Das, S., Kanbur, S. M., Smolec, R., et al. 2021, MNRAS, 501, 875 Google Scholar
De Somma, G., Marconi, M. Molinaro, R., et al. 2020, ApJS, 247, 30 Google Scholar
De Somma, G., Marconi, M., Molinaro, R., et al. 2022, ApJS, 262, 25 Google Scholar
Deka, Mami and Kanbur, Shashi M. and Deb, Sukanta, et al., 2022, MNRAS, 517, 2251 Google Scholar
Graczyk, Dariusz and Pietrzyński, Grzegorz and Thompson, Ian B. and Gieren, , et al., 2020, ApJ, 904, 13 Google Scholar
Kanbur, Shashi M. and Ngeow, Chow-Choong and Buchler, J. Robert, 2004, MNRAS, 354, 212 Google Scholar
Kanbur, Shashi M. and Ngeow, Chow-Choong, 2006, MNRAS, 369, 705 Google Scholar
Kanbur, Shashi M. and Ngeow, Chow-Choong and Feiden, Greg, 2007, MNRAS, 380, 819 Google Scholar
Kanbur, Shashi M. and Marconi, M., et al., 2010, MNRAS, 408, 695 Google Scholar
Ngeow, Chow-Choong and Kanbur, Shashi M., 2006, MNRAS, 369, 723 Google Scholar
Paxton, Bill and Bildsten, Lars and Dotter, Aaron, et al., 2011, ApJS, 192, 3 Google Scholar
Paxton, Bill and Cantiello, Matteo and Arras, , et al., 2013, ApJS, 208, 4 Google Scholar
Paxton, Bill and Marchant, Pablo and Schwab, , et al., 2015, ApJS, 220, 15 Google Scholar
Paxton, Bill and Schwab, Josiah and Bauer, Evan B., et al., 2018, ApJS, 234, 34 Google Scholar
Paxton, Bill and Smolec, R. and Schwab, , Josiah, et al., 2019, ApJS, 243, 10 Google Scholar
Pietrzyński, G. and Graczyk, D. and Gallenne, A., et al., 2019, Nature, 567, 200 Google Scholar
Skowron, D. M. and Skowron, J. and Udalski, A., et al., 2021, ApJS, 252, 23 Google Scholar
Smolec, R., & Moskalik, P. 2008, AcA, 58, 193 Google Scholar
Soszyński, I., and Udalski, A., et al., 2015, AcA, 65, 297 Google Scholar