Galaxy formation and evolution

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Distortion of gravitational-wave packets due to their self-gravity

Physical Review D American Physical Society (APS) 76:8 (2007) 084022

Authors:

Bence Kocsis, Abraham Loeb
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The Centre of M83

ArXiv 0710.1727 (2007)

Authors:

RCW Houghton, N Thatte

Abstract:

Stellar kinematics show no evidence of hidden mass concentrations at the centre of M83. We show the clearest evidence yet of an age gradient along the starburst arc and interpret the arc to have formed from orbital motion away from a starforming region in the dust lane.
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Spitzer View of Lyman Break Galaxies

(2007)

Authors:

Georgios E Magdis, Dimitra Rigopoulou
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Halo ejection in distant radio galaxies: Jet feedback in massive galaxy formation

Astrophysics and Space Science 311:1-3 (2007) 305-309

Authors:

MA Dopita, M Reuland, W Van Breugel, W De Vries, SA Stanford, H Röttgering, G Miley, B Venemans, H Spinrad, S Dawson, A Dey, M Lacy, D Stern, A Bunker

Abstract:

We present results from a Keck optical and near IR spectroscopic study of the giant emission line halos of the z>3 High Redshift Radio Galaxies (HiZRGs) 4C 41.17, 4C 60.07 and B2 0902+34. The outer regions of these halos show quiet kinematics with typical velocity dispersions of a few hundred km∈s-1 and velocity shears consistent with rotation. The inner regions contain shocked, clumpy cocoons of gas closely associated with the radio lobes with disturbed kinematics and expansion velocities and/or velocity dispersions >1000 km∈s-1. We also find evidence for the ejection of chemically enriched material in 4C 41.17 up to a distance of 60 kpc along the radio-axis. We infer that these HiZRGs are undergoing a final jet-induced phase of star formation with the ejection of most of their interstellar medium before evolving to become "red and dead" Elliptical galaxies. © 2007 Springer Science+Business Media B.V.
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Spiral Galaxies in the SAURON Survey

(2007)

Authors:

Reynier F Peletier, Katia Ganda, Jesus Falcon-Barroso, Roland Bacon, Michele Cappellari, Roger L Davies, P Tim de Zeeuw, Eric Emsellem, Davor Krajnovic, Harald Kuntschner, Richard M McDermid, Marc Sarzi, Glenn van de Ven, ;
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