Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-27T19:54:57.109Z Has data issue: false hasContentIssue false
  • English
  • Français

Environments of evolved massive stars: evidence for episodic mass ejections

Published online by Cambridge University Press:  30 November 2022

M. Kraus Open the ORCID record for M. Kraus [Opens in a new window] ,
L. S. Cidale ,
M. L. Arias ,
A. F. Torres ,
I. Kolka ,
G. Maravelias ,
D. H. Nickeler ,
W. Glatzel  and
T. Liimets
M. Kraus
Affiliation:
Astronomical Institute, Czech Academy of Sciences, Fričova 298, CZ-25165 Ondřejov, Czech Republic, email: [email protected]
L. S. Cidale
Affiliation:
Departamento de Espectroscopía, Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina Instituto de Astrofísica de La Plata (CCT La Plata - CONICET, UNLP) Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina
M. L. Arias
Affiliation:
Departamento de Espectroscopía, Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina Instituto de Astrofísica de La Plata (CCT La Plata - CONICET, UNLP) Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina
A. F. Torres
Affiliation:
Departamento de Espectroscopía, Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina Instituto de Astrofísica de La Plata (CCT La Plata - CONICET, UNLP) Paseo del Bosque S/N, La Plata, B1900FWA, Buenos Aires, Argentina
I. Kolka
Affiliation:
Tartu Observatory, University of Tartu, 61602 Tõravere, Tartumaa, Estonia
G. Maravelias
Affiliation:
IAASARS, National Observatory of Athens, GR-15236, Penteli, Greece Institute of Astrophysics, Foundation for Research and Technology-Hellas, GR-70013, Heraklion, Greece
D. H. Nickeler
Affiliation:
Astronomical Institute, Czech Academy of Sciences, Fričova 298, CZ-25165 Ondřejov, Czech Republic, email: [email protected]
W. Glatzel
Affiliation:
Institut für Astrophysik (IAG), Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
T. Liimets
Affiliation:
Astronomical Institute, Czech Academy of Sciences, Fričova 298, CZ-25165 Ondřejov, Czech Republic, email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The post-main sequence evolutionary path of massive stars comprises various transition phases, in which the stars shed large amounts of material into their environments. Our studies focus on two of them: B[e] supergiants and yellow hypergiants, for which we investigate the structure and dynamics within their environments. We find that each B[e] supergiant is surrounded by a unique set of rings or arc-like structures. These structures are either stable over time or they display high variability, including expansion and dilution. In contrast, yellow hypergiants are embedded in multiple shells of gas and dust. These objects are famous for their outburst activity. Moreover, the dynamics in their extended atmospheres imply an enhanced pulsation activity prior to outburst. The physical mechanism(s) leading to episodic mass ejections in these two types of stars is still uncertain. We propose that strange-mode instabilities, excited in the inflated envelopes of these objects, play a significant role.

Keywords

supergiantscircumstellar matterstars: mass lossstars: windsoutflows
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S366: The Origin of Outflows in Evolved Stars , November 2020 , pp. 51 - 56
Check for updates
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of International Astronomical Union

References

Aret, A., Kraus, M., Muratore, M. F., & Borges Fernandes, M. 2012, MNRAS 423, 284 CrossRefGoogle Scholar
Cidale, L. S., Borges Fernandes, M., Andruchow, I., Arias, M. L., Kraus, M., Chesneau, O., Kanaan, S., Curé, M., de Wit, W. J., & Muratore, M. F. 2012, A&A 548, 72 Google Scholar
Davies, B., Oudmaijer, R. D., & Sahu, K. C. 2007, ApJ 671, 2059 CrossRefGoogle Scholar
Davies, B., Figer, D. F., Law, C. J., Kudritzki, R.-P., Najarro, F., Herrero, A., & MacKenty, J. W. 2008, ApJ 676, 1016 CrossRefGoogle Scholar
de Jager, C. 1998, A&AR 8, 145 Google Scholar
Gautschy, A., & Glatzel, W. 1990, MNRAS 245, 597 CrossRefGoogle Scholar
Glatzel, W. 1994, MNRAS 271, 66 CrossRefGoogle Scholar
Glatzel, W., Kiriakidis, M., Chernigovskij, S., & Fricke, K. J. 1999, MNRAS 303, 116 CrossRefGoogle Scholar
Jura, M., & Kleinmann, S. G. 1990, ApJ 351, 583 CrossRefGoogle Scholar
Koumpia, E., Oudmaijer, R. D., Graham, V., Banyard, G., Black, J. H., Wichittanakom, C., Ababakr, K. M., de Wit, W. -J., Millour, F., Lagadec, E., Muller, S., Cox, N. L. J., Zijlstra, A., van Winckel, H., Hillen, M., Szczerba, R., Vink, J. S., & Wallström, S. H. J. 2020, A&A 635, A183 Google Scholar
Kraus, M. 2009, A&A 494, 253 Google Scholar
Kraus, M. 2019, Galaxies 7, 83 CrossRefGoogle Scholar
Kraus, M., Krügel, E., Thum, C., & Geballe, T. R. 2000, A&A 362, 158 Google Scholar
Kraus, M., Borges Fernandes, M., & de Araújo, F. X. 2010, A&A 517, A30 Google Scholar
Kraus, M., Oksala, M., Cidale, L. S., Arias, M. L., Torres, A. F., & Borges Fernandes, M. 2015a, ApJ (Letters) 800, L20 Google Scholar
Kraus, M., Haucke, M., Cidale, L. S., Venero, R. O. J., Nickeler, D. H., Németh, P., Niemczura, E., Tomić, S., Aret, A., Kubát, J., Kubátová, B., Oksala, M. E., Curé, M., Kamiński, K., Dimitrov, W., Fagas, M., & Polińska, M. 2015b, A&A 581, A75 Google Scholar
Kraus, M., Cidale, L. S., Arias, M. L., Maravelias, G., Nickeler, D. H., Torres, A. F., Borges Fernandes, M., Aret, A., Curé, M., Vallverdú, R., & Barbá, R. H. 2016, A&A 593, A112 Google Scholar
Kraus, M., Kolka, I., Aret, A., Nickeler, D. H., Maravelias, G., Eenmäe, T., Lobel, A., & Klochkova, V. G. 2019, MNRAS 483, 3792 CrossRefGoogle Scholar
Kraus, M., Arias, M. L., Cidale, L. S., & Torres, A. F. 2020, MNRAS 493, 4308 CrossRefGoogle Scholar
Kraus, M., Liimets, T., Moiseev, A., Sánchez Arias, J. P., Nickeler, D. H., Cidale, L. S., & Jones, D. 2021, AJ 162, 150 CrossRefGoogle Scholar
Lagadec, E., Zijlstra, A. A., Oudmaijer, R. D., Verhoelst, T., Cox, N. L. J., Szczerba, R., Mékarnia, D., & van Winckel, H. 2011, A&A 534, L10 Google Scholar
Lambert, D. L., Hinkle, K. H., & Hall, D. N. B. 1981, ApJ 248, 638 CrossRefGoogle Scholar
Liermann, A., Kraus, M., Schnurr, O., & Borges Fernandes, M. 2010 MNRAS 408, L6 CrossRefGoogle Scholar
Liermann, A., Schnurr, O., Kraus, M., Kreplin, A., Arias, M. L., & Cidale, L. S. 2014 MNRAS 443, 947 CrossRefGoogle Scholar
Lobel, A., Dupree, A. K., Stefanik, R. P., Torres, G., Israelian, G., Morrison, N., de Jager, C., Nieuwenhuijzen, H., Ilyin, I., & Musaev, F. 2003 ApJ 583, 923 CrossRefGoogle Scholar
Maravelias, G., & Kraus, M. 2022, JAAVSO, in press, arXiv:2112.13158Google Scholar
Maravelias, G., Kraus, M., Cidale, L. S., Borges Fernandes, M., Arias, M. L., Curé, M., & Vasilopoulos, G. 2018, MNRAS 480, 320 CrossRefGoogle Scholar
Muratore, M. F., Kraus, M., & de Wit, W. J. 2012, BAAA 55, 123 Google Scholar
Muratore, M. F., Kraus, M., Oksala, M. E., Arias, M. L., Cidale, L., Borges Fernandes, M., & Liermann, A. 2015, AJ 149, 13 CrossRefGoogle Scholar
Oksala, M., Kraus, M., Arias, M. L., Borges Fernandes, M., Cidale, L., Muratore, M. F., & Curé, M. 2012, MNRAS 426, 56 CrossRefGoogle Scholar
Oksala, M., Kraus, M., Cidale, L. S., Muratore, M. F., & Borges Fernandes, M. 2013, A&A 558, A17 Google Scholar
Torres, A. F., Kraus, M., Cidale, L. S., Barbá, R., Borges Fernandes, M., & Brandi, E. 2012, MNRAS, 427, L80 Google Scholar
Torres, A. F., Cidale, L. S., Kraus, M., Arias, M. L., Barbá, R. H., Maravelias, G., & Borges Fernandes, M. 2018, A&A 612, A113 Google Scholar
Yadav, A. P., & Glatzel, W. 2016, MNRAS, 457, 4330 CrossRefGoogle Scholar
Zickgraf, F.-J., Wolf, B., Stahl, O., & Humphreys, R. 1989, A&A 220, 206 Google Scholar
Zickgraf, F.-J., Wolf, B., Stahl, O., Leitherer, C., & Appenzeller, I. 1986, A&A 163, 119 Google Scholar