Galaxy formation and evolution

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An excess of star-forming galaxies in the fields of high-redshift QSOs

\mnras 405 (2010) 2623-2638-2623-2638

Authors:

JA Stevens, MJ Jarvis, KEK Coppin, MJ Page, TR Greve, FJ Carrera, RJ Ivison
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Candidate z~8-9 Galaxies from WFC3 Imaging

(2010)

Authors:

Silvio Lorenzoni, Andrew Bunker, Stephen Wilkins, Elizabeth Stanway, Matt Jarvis, Joseph Caruana
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The SAURON project - XVII. Stellar population analysis of the absorption line strength maps of 48 early-type galaxies

(2010)

Authors:

Harald Kuntschner, Eric Emsellem, Roland Bacon, Michele Cappellari, Roger L Davies, P Tim de Zeeuw, Jesús Falcón-Barroso, Davor Krajnović, Richard M McDermid, Reynier F Peletier, Marc Sarzi, Kristen L Shapiro, Remco CE van den Bosch, Glenn van de Ven
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The hierarchical build-up of the Tully-Fisher relation

(2010)

Authors:

Chiara Tonini, Claudia Maraston, Bodo Ziegler, Asmus Böhm, Daniel Thomas, Julien Devriendt, Joseph Silk
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The hierarchical build-up of the Tully-Fisher relation

ArXiv 1006.0229 (2010)

Authors:

Chiara Tonini, Claudia Maraston, Bodo Ziegler, Asmus Böhm, Daniel Thomas, Julien Devriendt, Joseph Silk

Abstract:

We use the semi-analytic model GalICS to predict the Tully-Fisher relation in the B, I and for the first time, in the K band, and its evolution with redshift, up to z~1. We refined the determination of the disk galaxies rotation velocity, with a dynamical recipe for the rotation curve, rather than a simple conversion from the total mass to maximum velocity. The new recipe takes into account the disk shape factor, and the angular momentum transfer occurring during secular evolution leading to the formation of bulges. This produces model rotation velocities that are lower by ~20-25% for the majority of the spirals. We implemented stellar population models with a complete treatment of the TP-AGB, which leads to a revision of the mass-to-light ratio in the near-IR. I/K band luminosities increase by ~0.3/0.5 mags at redshift z=0 and by ~0.5/1 mags at z=3. With these two new recipes in place, the comparison between the predicted Tully-Fisher relation with a series of datasets in the optical and near-IR, at redshifts between 0 and 1, is used as a diagnostics of the assembly and evolution of spiral galaxies in the model. At 0.4
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