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Circumgalactic gas absorption in extremely metal-poor dwarf dalaxies

  • M. E. Filho (a1) (a2), J. Sánchez Almeida (a1) (a2) and C. Muñoz Tuñón (a1) (a2)

Abstract

Accretion of metal-poor gas via cold accretion flows has been recently proposed as a means to trigger/sustain star formation in extremely metal-poor dwarf galaxies (XMPs), a scenario in agreement with theoretical predictions. We report on the tentative detection of CaII absorption used to trace the conditions of the gas clouds in the halo of the XMP UGCA 20.

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References

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Morales-Luis, A. B., Sánchez Almeida, J., Aguerri, J. A. L., & Muñoz-Tuñón, C. 2011, ApJ, 743, 77
Sardane, G. M., Turnshek, D. A., & Rao, S. M. 2014, MNRAS, 444, 1747
van Zee, L., Haynes, M. P., Salzer, J. J., & Broeils, A. H. 1996, AJ, 112, 129
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Keywords

Circumgalactic gas absorption in extremely metal-poor dwarf dalaxies

  • M. E. Filho (a1) (a2), J. Sánchez Almeida (a1) (a2) and C. Muñoz Tuñón (a1) (a2)

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