The Daily Brew
Selected astro-ph abstracts for Friday 2008 December 5
- Long term optical and X-ray variability of the Seyfert galaxy Markarian 79.
E. Breedt (1), P. Arévalo (1), I. M. McHardy,(1) P. Uttley (1), S. G. Sergeev (2,3), T. Minezaki (4), Y. Yoshii (4), C. M. Gaskell (5), E. M. Cackett (6), K. Horne (7), S. Koshida (4) ((1) Southampton, UK, (2) CrAO, Ukraine, (3) Isaac Newton Institute of Chile, Ukraine, (4) Tokyo, Japan (5) Texas, USA, (6) Michigan, USA, (7) St. Andrews, UK)
arXiv:0812.0810v1
- AzTEC Millimetre Survey of the COSMOS Field - II. Source Count Overdensity and Correlations with Large-Scale Structure.
J.E. Austermann, I. Aretxaga, D.H. Hughes, Y. Kang, S. Kim, J.D. Lowenthal, T.A. Perera, D.B. Sanders, K.S. Scott, N. Scoville, G.W. Wilson, M.S. Yun
arXiv:0812.0814v1
- The Role of Gas In Maintaining Quasi-Steady Spiral Structure In Stellar Disks.
Sukanya Chakrabarti
arXiv:0812.0821v1
- He II absorption and the sawtooth spectrum of the cosmic far-UV background.
Piero Madau, Francesco Haardt
arXiv:0812.0824v1
- Disk Winds Driven by Magnetorotational Instability and Dispersal of Proto-Planetary Disks.
T. K. Suzuki (U. Tokyo), S. Inutsuka (Kyoto U.)
arXiv:0812.0844v1
- The evolution of the Galactic metallicity gradient from high-resolution spectroscopy of open clusters.
Laura Magrini, Paola Sestito, Sofia Randich, Daniele Galli (INAF-Osservatorio Astrofisico di Arcetri, Italy)
arXiv:0812.0854v1
- Toward mode selection in Delta Scuti stars: Regularities in observed and theoretical frequency spectra.
M. Breger, P. Lenz, A. A. Pamyatnykh
arXiv:0812.0856v1
- Testing large-scale (an)isotropy of ultra-high energy cosmic rays.
Hylke B. J. Koers, Peter Tinyakov
arXiv:0812.0860v1
- Structure of the SMC - Stellar component distribution from 2MASS data.
I. Gonidakis (1), E. Livanou (1), E. Kontizas (2), U. Klein (3), M. Kontizas (1), M. Belcheva (1), P. Tsalmantza (4), A. Karampelas (1) ((1) Department of Astrophysics Astronomy & Mechanics, Faculty of Physics, University of Athens, Athens, Greece (2) Institute for Astronomy and Astrophysics, National Observatory of Athens, Athens, Greece (3) Radioastronomisches Institut der Universitat Bonn, Bonn, Germany (4) Max-Planck-Institut fur Astronomie, Heidelberg, Germany)
arXiv:0812.0880v1
- AGB Stars in the Fornax Dwarf Spheroidal Galaxy.
Patricia A. Whitelock, John W. Menzies, Michael W. Feast, Noriyuki Matsunaga, Toshihiko Tanabe, Yoshifusa Ita
arXiv:0812.0903v1
- A Surprisingly High Pair Fraction for Extremely Massive Galaxies at z ~ 3 in the GOODS NICMOS Survey.
Asa F. L. Bluck, Christopher J. Conselice, Rychard J. Bouwens, Emanuele Daddi, Mark Dickinson, Casey Papovich, Haojing Yan
arXiv:0812.0926v2
- The Formation and Survival of Discs in a Lambda-CDM Universe.
Cecilia Scannapieco (1), Simon D.M. White (1), Volker Springel (1), Patricia B. Tissera (2) ((1) Max-Planck Institute for Astrophysics - Garching; (2) Institute for Astronomy and Space Physics - Buenos Aires)
arXiv:0812.0976v1
- Frying Doughnuts: What can the reprocessing of X-rays to IR tell us about the AGN environment?.
B. McKernan, K.E.S. Ford, N. Chang, C.S. Reynolds
arXiv:0812.0984v1
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