Galaxy formation and evolution

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Parallel-sequencing of early-type and spiral galaxies

(2012)

Parameter estimation for inspiraling eccentric compact binaries including pericenter precession

Physical Review D American Physical Society (APS) 86:10 (2012) 104027

Authors:

Bal谩zs Mik贸czi, Bence Kocsis, P茅ter Forg谩cs, M谩ty谩s Vas煤th

AGN Feedback Driven Molecular Outflow in NGC 1266

(2012)

Authors:

K Alatalo, KE Nyland, G Graves, S Deustua, J Wrobel, LM Young, TA Davis, M Bureau, E Bayet, L Blitz, M Bois, F Bournaud, M Cappellari, RL Davies, PT de Zeeuw, E Emsellem, S Khochfar, D Krajnovic, H Kuntschner, S Martin, RM McDermid, R Morganti, T Naab, T Oosterloo, M Sarzi, N Scott, P Serra, A Weijmans

Quenching of Star Formation in Molecular Outflow Host NGC 1266

(2012)

Authors:

K Alatalo, KE Nyland, G Graves, S Deustua, LM Young, TA Davis, M Bureau, E Bayet, L Blitz, M Bois, F Bournaud, M Cappellari, RL Davies, PT de Zeeuw, E Emsellem, S Khochfar, D Krajnovic, H Kuntschner, RM McDermid, R Morganti, T Naab, T Oosterloo, M Sarzi, N Scott, P Serra, A Weijmans

Angular momentum transfer to a Milky Way disk at high redshift

ArXiv 1211.3124 (2012)

Authors:

Henry Tillson, Julien Devriendt, Adrianne Slyz, Lance Miller, Christophe Pichon

Abstract:

An Adaptive Mesh Refinement cosmological resimulation is analyzed in order to test whether filamentary flows of cold gas are responsible for the build-up of angular momentum within a Milky Way like disk at z>=3. A set of algorithms is presented that takes advantage of the high spatial resolution of the simulation (12 pc) to identify: (i) the central gas disk and its plane of orientation; (ii) the complex individual filament trajectories that connect to the disk, and; (iii) the infalling satellites. The results show that two filaments at z>5.5, which later merge to form a single filament at z<4, drive the angular momentum and mass budget of the disk throughout its evolution, whereas luminous satellite mergers make negligible fractional contributions. Combined with the ubiquitous presence of such filaments in all large-scale cosmological simulations that include hydrodynamics, these findings provide strong quantitative evidence that the growth of thin disks in haloes with masses below 10^{12} M_{sun}, which host the vast majority of galaxies, is supported via inflowing streams of cold gas at intermediate and high redshifts.