Leo Blitz

TL;DR: In this paper, an automatic, objective routine for analyzing the clumpy structure in a spectral line position-position-velocity data cube is described, which works by first contouring the data at a multiple of the rms noise of the observations, then searching for peaks of emission which locate the clumps, and then following them down to lower intensities.

TL;DR: The ATLAS3D project as discussed by the authors is a multi-wavelength survey combined with a theoretical modelling effort, which provides multicolour imaging, two-dimensional kinematics of the atomic (H i), molecular (CO) and ionized gas (H beta, [O iii] and [N i]), together with the kinematic and population of the stars (H β, Fe5015 and Mg b), for a carefully selected, volume-limited (1.16 x 105 Mpc3) sample of 260 early-type (elliptical E

TL;DR: The definitive version of this paper can be found at : http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society (RAS) 2013 as mentioned in this paper.

TL;DR: A study of the two-dimensional stellar kinematics for the large representative ATLAS3D sample of nearby early- type galaxies spanning two orders of magnitude in stellar mass, using detailed dynamical models finds a strong systematic variation in IMF in early-type galaxies as a function of their stellar mass-to-light ratios, implying that a galaxy’s IMF depends intimately on the galaxy's formation history.

TL;DR: In this article, the authors show that the ratio of molecular to atomic gas in galaxies is determined by hydrostatic pressure and that the relation between the two is nearly linear, and propose a modified star formation prescription based on pressure determining the degree to which the ISM is molecular.