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9 papers · 2 filters
Increasing blackhole feedback induced quenching with anisotropic thermal conduction
Rahul Kannan, Mark Vogelsberger, Christoph Pfrommer +5
Feedback from central supermassive blackholes is often invoked to explain the low star formation rates in massive galaxies at the centers of galaxy clusters. However, the detailed…
Subhalo Demographics in the Illustris Simulation: Effects of Baryons and Halo-to-Halo Variation
Kun Ting Eddie Chua, Annalisa Pillepich, Vicente Rodriguez-Gomez +3
We study the abundance of subhaloes in the hydrodynamical cosmological simulation Illustris, which includes both baryons and dark matter in a CDM volume 106.5 Mpc a side. We com…
The Role of Star-Formation and AGN in Dust Heating of z=0.3-2.8 Galaxies - II. Informing IR AGN fraction estimates through simulations
Eric Roebuck, Anna Sajina, Christopher C. Hayward +4
A key question in extragalactic studies is the determination of the relative roles of stars and AGN in powering dusty galaxies at 1-3 where the bulk of star-formation and AG…
The inner structure of early-type galaxies in the Illustris simulation
Dandan Xu, Volker Springel, Dominique Sluse +5
Early-type galaxies provide unique tests for the predictions of the cold dark matter cosmology and the baryonic physics assumptions entering models for galaxy formation. In this wo…
Massive Close Pairs Measure Rapid Galaxy Assembly in Mergers at High Redshift
Gregory F. Snyder, Jennifer M. Lotz, Vicente Rodriguez-Gomez +3
We compare mass-selected close pairs at z > 1 with the intrinsic galaxy merger rate in the Illustris Simulations. To do so, we construct three 140 arcmin^2 lightcone catalogs and m…
The role of mergers and halo spin in shaping galaxy morphology
Vicente Rodriguez-Gomez, Laura V. Sales, Shy Genel +10
Mergers and the spin of the dark matter halo are factors traditionally believed to determine the morphology of galaxies within a CDM cosmology. We study this hypothesis by consi…
Simulating galaxy formation with black hole driven thermal and kinetic feedback
Rainer Weinberger, Volker Springel, Lars Hernquist +8
The inefficiency of star formation in massive elliptical galaxies is widely believed to be caused by the interactions of an active galactic nucleus (AGN) with the surrounding gas.…
The formation and evolution of star clusters in interacting galaxies
Moupiya Maji, Qirong Zhu, Yuexing Li +3
Observations of globular clusters show that they have universal lognormal mass functions with a characteristic peak at , but the origin of t…
ALMA Resolves the Nuclear Disks of Arp 220
Nick Scoville, Lena Murchikova, Fabian Walter +20
We present 90 mas (37 pc) resolution ALMA imaging of Arp 220 in the CO (1-0) line and continuum at mm. The internal gas distribution and kinematics of both galactic nuclei…