The Daily Brew
Selected astro-ph abstracts for Friday 2009 March 27
- J1536+0441 and the lack of evidence for close supermassive binary black holes.
C. Martin Gaskell
arXiv:0903.4447v1
- Testing Fundamental Physics with Distant Star Clusters: Analysis of Observational Data on Palomar 14.
K. Jordi, E.K. Grebel, M. Hilker, H. Baumgardt, M. Frank, P. Kroupa, H. Haghi, P. Côté, S.G. Djorgovski
arXiv:0903.4448v1
- Are symmetric tidal streams possible with long-range dark-matter forces?.
Michael Kesden
arXiv:0903.4458v1
- Asteroid Distributions in the Ecliptic.
Erin L. Ryan, Charles E. Woodward, Andrea Dipaolo, Jacopo Farinato, Emanuele Giallongo, Roland Gredel, John Hill, Fernando Pedichini, Richard Pogge, Roberto Ragazzoni
arXiv:0903.4479v1
- The covering factor of high redshift damped Lyman-$\alpha$ systems.
N. Kanekar (1), W. M. Lane (2), E. Momjian (1), F. H. Briggs (3), J. N. Chengalur (4) ((1) National Radio Astronomy Observatory (USA); (2) Naval Research Laboratory, USA; (3) Mt. Stromlo Observatory, ANU, Australia; (4) National Centre for Radio Astrophysics, India)
arXiv:0903.4483v1
- A search for HI 21cm absorption in strong MgII absorbers in the redshift desert.
N. Kanekar (1), J. X. Prochaska (2), S. L. Ellison (3), J. N. Chengalur (4) ((1) National Radio Astronomy Observatory, USA; (2) UC-Santa Cruz, USA; (3) University of Victoria, Canada; (4) National Centre for Radio Astrophysics, India)
arXiv:0903.4487v1
- Imaging faint brown dwarf companions close to bright stars with a small, well-corrected telescope aperture.
E. Serabyn, D. Mawet, E. Bloemhof, P. Haguenauer, B. Mennesson, K. Wallace, J. Hickey
arXiv:0903.4488v1
- Supermassive Black Holes in the Hierarchical Universe: A General Framework and Observational Tests.
Yue Shen (Princeton)
arXiv:0903.4492v1
- On the radial distribution of horizontal branch stars in ngc2808.
G. Iannicola, M. Monelli, G. Bono, P.B. Stetson R. Buonanno, A. Calamida, M. Zoccali, F. Caputo, M. Castellani, C.E. Corsi, M. Dall'Ora, A. Di Cecco, S. Degl'Innocenti, I. Ferraro, M. Nonino, A. Pietrinferni, L. Pulone, P.G. Prada Moroni, M. Romaniello, N. Sanna, A.R. Walker
arXiv:0903.4531v1
- On the Carriers of the 21 Micron Emission Feature in Post-Asymptotic Giant Branch Stars.
K. Zhang, B. W. Jiang, A. Li
arXiv:0903.4541v1
- Effects of Dark Matter Substructures on Gravitational Lensing: Results from the Aquarius Simulations.
D. D. Xu (1), S. Mao (1), J. Wang (2,3), V. Springel (2), L. Gao (3), S. D. M. White (2), C. S. Frenk (3), A. Jenkins (3), G. Li (4), J. F. Navarro (5) ((1) Jodrell Bank Centre for Astrophysics, (2) Max-Planck Institute for Astrophysics, (3) University of Durham, (4) University of Bonn, (5) University of Victoria)
arXiv:0903.4559v1
- Evolution of the Lyman-alpha Halos around High-Redshift Radio Galaxies.
Andrew W. Zirm (1), Arjun Dey (2), Mark Dickinson (2), Colin J. Norman (1) ((1) Johns Hopkins University, (2) National Optical Astronomy Observatories)
arXiv:0903.4660v1
- On the origin and properties of Ultrafaint Milky Way Satellites in a LCDM Universe.
Andrea V. Maccio' (1), Xi Kang (1), Fabio Fontanot (1), Rachel S. Somerville (1,2), Sergey E. Koposov (1,3,4), Pierluigi Monaco (5,6) ((1) MPIA, Heidelberg; (2) Space Telescope Science Institute, Baltimore;(3) Institute of Astronomy, Cambridge, UK, (4) Sternberg Astronomical Institute, Moscow, Russia, (5) INAF-Osservatorio Astronomico di Trieste; (6) Dipartimento di Astronomia, Universita' di Trieste)
arXiv:0903.4681v1
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