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Testing the Universality of the Stellar IMF with Chandra and HST

Autor: Coulter, D. A., Lehmer, B. D., Eufrasio, R. T., Kundu, A., Maccarone, T., Peacock, M., Hornschemeier, A. E., Basu-Zych, A., Gonzalez, A. H., Maraston, C., Zepf, S. E.

The stellar initial mass function (IMF), which is often assumed to be universal across unresolved stellar populations, has recently been suggested to be "bottom-heavy" for massive ellipticals. In these galaxies, the prevalence of gravity-sensitive ab

Externí odkaz: http://arxiv.org/abs/1612.05189

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An AO-assisted variability study of four globular clusters

Autor: Salinas, R., Ramos, R. Contreras, Strader, J., Hakala, P., Catelan, M., Peacock, M., Simunovic, M.

The image subtraction technique applied to study variable stars in globular clusters represented a leap in the number of new detections, with the drawback that many of these new light curves could not be transformed to magnitudes due to the severe cr

Externí odkaz: http://arxiv.org/abs/1605.06517

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A Comprehensive Archival Search for Counterparts to Ultra-Compact High Velocity Clouds: Five Local Volume Dwarf Galaxies

We report five Local Volume dwarf galaxies (two of which are presented here for the first time) uncovered during a comprehensive archival search for optical counterparts to ultra-compact high velocity clouds (UCHVCs). The UCHVC population of HI cloud

Externí odkaz: http://arxiv.org/abs/1503.00720

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