• Constructing massive blue elliptical galaxies in the local universe 

    Haines, Tim (2013-06-25)
    Over cosmic time, galaxy mass assembly has transitioned from low-mass, starforming disk galaxies to massive, quiescent elliptical galaxies. The merger hypothesis for the formation of new elliptical galaxies provides one ...
  • Mid-Infrared Extinction and its Variation with Galactic Longitude 

    Gao, Jian; Jiang, B. W.; Li, Aigen (American Astronomical Society, 2009-12)
    Based on the data obtained from the Spitzer/Galactic Legacy InfraredMidplane Survey Extraordinaire (GLIPMSE) Legacy Program and the Two Micron All Sky Survey (2MASS) project, we derive the extinction in the four IRAC bands, ...
  • The Role of Active Galactic Nuclei in the Major Merging Process 

    Cooper, Andrew (University of Missouri--Kansas City, 5/8/2012)
    A merger-fueled supermassive black hole and its subsequent quenching of star formation, due to high energy radiative feedback against further in-falling gas, is postulated to be a central mechanism in explaining the growth ...
  • Weak Gravitational Lensing and Cluster Mass Estimates 

    Metzler, Christopher A.; White, Martin; Norman, Michael; Loken, Christen (American Astronomical Society, 1999-07)
    Hierarchical theories of structure formation predict that clusters of galaxies should be embedded in a weblike structure, with filaments emanating from them to large distances. The amount of mass contained within such ...