IMAGES: A Unique View of the Galaxy Mass Assembly Since z=1

Puech, M.; Hammer, F.; Flores, H.; Yang, Y.; Neichel, B.

doi:10.1007/978-1-4020-9190-2_8

M. Puech⁴,
F. Hammer,
H. Flores,
Y. Yang &
…
B. Neichel

Part of the book series: Astrophysics and Space Science Proceedings ((ASSSP))

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Abstract

The Large Program IMAGES is near 2/3 of its completion. It provides us with kinematics (GIRAFFE deployable IFUs), gas chemistry (FORS2), detailed morphologies (HST/ACS) and IR photometry (Spitzer) for a set of 70 galaxies representative of intermediate mass galaxies (M _J≤−20.3 or 1.5×10¹⁰ M_⊙) at z=0.4–0.75. We discover that, 6 Gyr ago, a significant fraction of galaxies (≥40%) had anomalous kinematics, i.e. kinematics significantly discrepant from those of rotational or dispersion supported galaxies. The anomalous kinematics cause the observed large dispersion of the Tully–Fisher relation at large distances. IMAGES will soon allow us to study distant galaxies at a level of detail almost comparable to that of nearby galaxies.

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References

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Authors and Affiliations

ESO, Karl-Schwarzschild-Strasse 2, 85748, Garching bei München, Germany
M. Puech

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M. Puech
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F. Hammer
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H. Flores
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Y. Yang
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B. Neichel
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Correspondence to M. Puech .

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European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748, Garching, Germany
Alan Moorwood

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Puech, M., Hammer, F., Flores, H., Yang, Y., Neichel, B. (2009). IMAGES: A Unique View of the Galaxy Mass Assembly Since z=1. In: Moorwood, A. (eds) Science with the VLT in the ELT Era. Astrophysics and Space Science Proceedings. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9190-2_8

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DOI: https://doi.org/10.1007/978-1-4020-9190-2_8
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-9189-6
Online ISBN: 978-1-4020-9190-2
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