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- Center for Astrophysics Harvard & SmithsonianUS354 papers
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14 papers · 1 filter
Critical entropies for magnetic ordering in bosonic mixtures on a lattice
B. Capogrosso-Sansone, Ş. G. Söyler, N. V. Prokof'ev +1
We perform a numeric study (worm algorithm Monte Carlo simulations) of ultracold two-component bosons in two- and three-dimensional optical lattices. At strong enough interactions…
Discovery of extreme particle acceleration in the microquasar Cygnus X-3
M. Tavani, A. Bulgarelli, G. Piano +67
The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial…
A Blue Tilt in the Globular Cluster System of the Milky Way-like Galaxy NGC 5170
Duncan Forbes, Lee Spitler, William Harris +4
Here we present HST/ACS imaging, in the B and I bands, of the edge-on Sb/Sc galaxy NGC 5170. Excluding the central disk region region, we detect a 142 objects with colours and size…
Long Term Monitoring of the Dynamics and Particle Acceleration of Knots in the Jet of Centaurus A
J. L. Goodger, M. J. Hardcastle, J. H. Croston +16
We present new and archival multi-frequency radio and X-ray data for Centaurus A obtained over almost 20 years at the VLA and with Chandra, with which we measure the X-ray and radi…
The optical spectra of Spitzer 24 micron galaxies in the COSMOS field: II. Faint infrared sources in the zCOSMOS-bright 10k catalogue
K. I. Caputi, S. J. Lilly, H. Aussel +67
We have used the zCOSMOS-bright 10k sample to identify 3244 Spitzer/MIPS 24-micron-selected galaxies with 0.06< S(24um)< 0.50 mJy and I(AB)<22.5, over 1.5 deg^2 of the COSMOS field…
AGN Feedback: Does it work?
Smita Mathur, Rebecca Stoll, Yair Krongold +3
While feedback is important in theoretical models, we do not really know if it works in reality. Feedback from jets appears to be sufficient to keep the cooling flows in clusters f…