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Black hole formation preceded by a SN explosion or not: evidence from Galactic chemical evolution

Published online by Cambridge University Press:  26 May 2016

Erwin De Donder
Affiliation:
Astrofysisch Instituut, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, België
Dany Vanbeveren
Affiliation:
Astrofysisch Instituut, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, België

Abstract

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We derive a constraint on direct black hole formation from the evolution of [O/Fe] as function of time, during the early evolution of the Galaxy in the solar neighbourhood. Since oxygen is dominantly produced by massive stars, the evolution of [O/Fe] is an indirect observable signature of the death of massive stars. We use a detailed Galactic code that computes as function of time the chemical composition of the interstellar gas, out of which successive generations of stars are formed. From our simulations we conclude, that to fit simultaneously the observed [O/Fe] evolution and other observational constraints: (i) all massive stars (single or binary) with M > 40 M should form massive black holes with the ejection of at least 7 M of oxygen and little carbon and iron; and (ii) mass loss by stellar wind during the Luminous Blue Variable phase and/or helium burning phase is likely to be metallicity dependent.

Type
Part 2. Interiors of Massive Stars
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Boesgaard, A.M., King, J.R., Deliyannis, C.P., Vogt, S.S. 1999, AJ 118, 2542.CrossRefGoogle Scholar
Chiappini, C., Matteucci, F., Gratton, R. 1997, ApJ 477, 765.CrossRefGoogle Scholar
De Donder, E., Vanbeveren, D. 2002, New Astron. 7, 55.CrossRefGoogle Scholar
Fryer, C. 1999, ApJ 522, 413.CrossRefGoogle Scholar
Gratton, R., Carretta, E., Matteucci, F., Sneden, C. 1996, in: Morrison, H. & Sarajedini, A. (eds.), The Formation of the Galactic Halo, ASP-CS 92, 307.Google Scholar
Israelian, G., García López, R.J., Rebolo, R. 1998, ApJ 507, 805.CrossRefGoogle Scholar
Israelian, G., Rebolo, R., Basri, G., Casares, J., Martín, E.L. 1999, Nature 401, 142.CrossRefGoogle Scholar
Nakamura, T., Umeda, H., Iwamoto, K., et al. 2001, ApJ 555, 880.CrossRefGoogle Scholar