Galaxy Zoo: Multimergers and the Millennium Simulation
Monthly Notices of the Royal Astronomical Society 416:3 (2011) 1745-1755
Abstract:
We present a catalogue of 39 multiple mergers, found using the mergers catalogue of the Galaxy Zoo project for z < 0.1, and compare them to corresponding semi-analytical galaxies from the Millennium Simulation. We estimate the (volume-limited) multimerger fraction of the local Universe using our sample and find it to be at least 2 orders of magnitude less than binary mergers - in good agreement with the simulations (especially the Munich group). We then investigate the properties of galaxies in binary mergers and multimergers (morphologies, colours, stellar masses and environment) and compare these results with those predicted by the semi-analytical galaxies. We find that multimergers favour galaxies with properties typical of elliptical morphologies and that this is in qualitative agreement with the models. Studies of multimergers thus provide an independent (and largely corroborating) test of the Millennium semi-analytical models. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.Moon Zoo: Citizen science in lunar exploration
Astronomy and Geophysics 52:2 (2011) 2.10-2.12
Abstract:
The Moon Zoo Team describe how citizen scientists can get involved and explore the Moon online. © 2011 Royal Astronomical Society.Galaxy Zoo: Bar lengths in local disc galaxies
Monthly Notices of the Royal Astronomical Society (2011)
Moon Zoo: citizen science in lunar exploration
ASTRONOMY & GEOPHYSICS 52:2 (2011) 10-12
Reinventing Discovery: The New Era of Networked Science
NATURE 478:7369 (2011) 320-321