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Cepheids as Swiss army knives for Milky Way archaeology

  • B. Lemasle (a1), V. Kovtyukh (a2) (a3), R. da Silva (a4) (a5) (a6), R. Mor (a7), G. Bono (a4) (a5), F. Figueras (a7), P. François (a8) (a9), L. Inno (a10), D. Magurno (a4) (a5), N. Matsunaga (a11), A. McWilliam (a12) and A. C. Robin (a13)...

Abstract

Cepheids are excellent stellar tracers: they are bright enough to be observed even at large distances; their distances can be accurately determined via period-luminosity relations; their spectra contain numerous lines that enable us to derive abundances for many α, iron-peak or neutron-capture elements. Classical Cepheids are yellow supergiants that trace the young populations (⩽ 300 Myr); Type II Cepheids are post Horizontal Branch, low-mass, Population II stars (⩾ 10 Gyr). Both can be used for many purposes in Milky Way archaeology.

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References

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da Silva, R., Lemasle, B., et al., 2016 A&A, 586, A125
Feast, M. W., Menzies, J. W., et al., 2014 Nature, 509, 342
Inno, L., Matsunaga, N., et al., 2013 ApJ, 764, 84
Kovtyukh, V., Lemasle, B., et al., 2016 MNRAS, 460, 2077
Lemasle, B., Kovtyukh, V., et al., 2015 A&A, 579, A47
Mor, R., Robin, A. C., et al., 2015 A&A, 599, A17
Reddy, B. E., Lambert, D. L., et al., 2006 MNRAS, 367, 1329
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Cepheids as Swiss army knives for Milky Way archaeology

  • B. Lemasle (a1), V. Kovtyukh (a2) (a3), R. da Silva (a4) (a5) (a6), R. Mor (a7), G. Bono (a4) (a5), F. Figueras (a7), P. François (a8) (a9), L. Inno (a10), D. Magurno (a4) (a5), N. Matsunaga (a11), A. McWilliam (a12) and A. C. Robin (a13)...

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