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  • Kafka, S.; Honeycutt, R.K.; Williams, R. (Oxford University Press on behalf of the Royal Astronomical Society, 2012)
    Variable Na I absorption lines have been reported in a number of Type Ia supernovae (SNeIa). The presence of this circumstellar material suggests that cataclysmic variables (CVs) with a giant donor star may be the progenitors ...
  • Fang, J.J.; Faber, S.M.; Salim, S.; Graves, G.J.; Rich, R.M. (The American Astronomical Society, 2012)
    UV observations in the local universe have uncovered a population of early-type galaxies with UV flux consistent with low-level recent or ongoing star formation. Understanding the origin of such star formation remains an ...
  • Peacock, M.B.; Zepf, S.E.; Kundu, A.; MacCarone, T.J.; Rhode, K.L.; Salzer, J.J.; Waters, C.Z.; Ciardullo, R.; Gronwall, C.; Stern, D. (The American Astronomical Society, 2012)
    We present optical Hubble Space Telescope/Space Telescope Imaging Spectrograph ($HST/S\text{TIS}$) spectroscopy of RZ 2109, a globular cluster (GC) in the elliptical galaxy NGC 4472. This GC is notable for hosting an ...
  • Salim, S.; Lee, J.C. (The American Astronomical Society, 2012)
    In this paper, we posit that galaxy luminosity functions (LFs) come in two fundamentally different types depending on whether the luminosity traces galaxy stellar mass or its current star formation rate (SFR). $\textit{Mass ...
  • Kellar, J.A.; Salzer, J.J.; Wegner, G.; Gronwall, C.; Williams, A. (The American Astronomical Society, 2012)
    During a wide-field narrowband $\text{H}\alpha$ imaging survey, we noted the presence of numerous isolated emission-line point sources in the data. These objects could represent ultra-low-luminosity galaxies at low-redshift ...
  • Geisler, D.; Villanova, S.; Carraro, G.; Pilachowski, C.A.; Cummings, J.; Johnson, C.I.; Bresolin, F. (The American Astronomical Society, 2012)
    Almost all globular clusters investigated exhibit a spread in their light element abundances, the most studied being an Na:O anticorrelation. In contrast, open clusters show a homogeneous composition and are still regarded ...

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