Galaxy formation and evolution: publications

The second generation VLT instrument MUSE: Science drivers and instrument design

P SOC PHOTO-OPT INS 5492 (2004) 1145-1149

Authors:

R Bacon, S Bauer, R Bower, S Cabrit, M Cappellari, M Carollo, FO Combes, R Davies, B Delabre, H Dekker, J Devriendt, S Djidel, M Duchateau, JP Dubois, E Emsellem, P Ferruit, M Franx, G Gilmore, B Guiderdoni, F Henault, N Hubin, B Jungwiert, A Kelz, M Le Louarn, I Lewis, JL Lizon, R Mc Dermid, S Morris, U Laux, O Le Fevre, B Lantz, S Lilly, J Lynn, L Pasquin, A Pecontal, PPD Popovic, A Quirrenbach, R Reiss, M Roth, M Steinmetz, R Stuik, L Wisotzki, T de Zeeuw

Abstract:

The Multi Unit Spectroscopic Explorer (MUSE) is a second generation VLT panoramic integral-field spectrograph operating in the visible wavelength range. MUSE has a field of 1x1 arcmin(2) sampled at 0.20.2 arcsec(2) and is assisted by a ground layer adaptive optics system using four laser guide stars. The simultaneous spectral range is 0.465-0.93 mum, at a resolution of Rsimilar to3000. MUSE couples the discovery potential of a large imaging device to the measuring capabilities of a high-quality spectrograph, while taking advantage of the increased spatial resolution provided by adaptive optics. This makes MUSE a unique and tremendously powerful instrument for discovering and characterizing objects that lie beyond the reach of even the deepest imaging surveys. MUSE has also a high spatial resolution mode with 7.5x7.5 arcsec(2) field of view sampled at 25 milli-arcsec. In this mode MUSE should be able to get diffraction limited data-cube in the 0.6-1 mum wavelength range. Although MUSE design has been optimized for the study of galaxy formation and evolution, it has a wide range of possible applications; e.g. monitoring of outer planets atmosphere, young stellar objects environment, supermassive black holes and active nuclei in nearby galaxies or massive spectroscopic survey of stellar fields.

Three Lyα emitters at z ≈ 6: Early GMOS/Gemini data from the GLARE project

ASTROPHYSICAL JOURNAL 604:1 (2004) L13-L16

Authors:

ER Stanway, K Glazebrook, AJ Bunker, RG Abraham, I Hook, J Rhoads, PJ McCarthy, B Boyle, M Colless, D Crampton, W Couch, I Jorgensen, S Malhotra, R Murowinski, K Roth, S Savaglio, Z Tsvetanov

Turbulent ambipolar diffusion: Numerical studies in two dimensions

ASTROPHYSICAL JOURNAL 603:1 (2004) 165-179

Authors:

F Heitsch, EG Zweibel, AD Slyz, JEG Devriendt

The detailed optical light curve of GRB 030329

(2003)

Authors:

YM Lipkin, EO Ofek, A Gal-Yam, EM Leibowitz, D Poznanski, S Kaspi, D Polishook, SR Kulkarni, DW Fox, E Berger, N Mirabal, J Halpern, M Bureau, K Fathi, PA Price, BA Peterson, A Frebel, B Schmidt, JA Orosz, JB Fitzgerald, JS Bloom, PG van Dokkum, CD Bailyn, MM Buxton, M Barsony

Active galactic nuclei and the minor merger hypothesis

Monthly Notices of the Royal Astronomical Society 346:4 (2003) 1078-1088

Authors:

P Kendall, J Magorrian, JE Pringle

Abstract:

We have investigated the dynamics of the merging process in the minor merger hypothesis for active galactic nuclei. We find that for a satellite galaxy to be able to merge directly with the nucleus of the host galaxy (for example, to give rise to the compact dust discs which are seen in early-type active galaxies), the initial orbit of the satellite is required to be well aimed. For the case of the host galaxy being a disc galaxy, if the initial orbits of the satellites are randomly oriented with respect to the host galaxy, then the orbits of those which reach the host nuclear regions in a reasonable time are also fairly randomly oriented once they reach the nucleus. We note that this result might be able to provide an explanation of why the jet directions in the nuclei of Seyfert galaxies are apparently unrelated to the plane of the galaxy discs.

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