The ruff of equatorial emission around the SS433 jets: its spectral index and origin

We present unique radio observations of SS433, using MERLIN, the VLBA, and the VLA, which allow us to, for the first time, properly image and derive a meaningful spectral index for the `ruff' of equatorial emission which surrounds SS433's jet. We interpret this smooth ruff as a wind-like outflow from the binary.Comment: 4 pages, 4 figures, to appear in Proceedings of the 4th Microquasar Workshop, eds. Ph Durouchoux, Y. Fuchs and J. Rodrigue

GX 339-4: back to life

We report preliminary results of a RossiXTE campaign on the 2002 outburst of the black-hole candidate GX 339-4. We show power density spectra of five observations during the early phase of the outburst. The first four power spectra show a smooth transition between a Low State and a Very High State. The fifth power spectrum resembles a High State, but a strong 6 Hz QPO appears suddenly within 16 seconds.Comment: 3 pages, 3 figures; to appear in Proceedings of the 4th Microquasar Workshop, eds. Ph Durouchoux, Y. Fuchs and J. Rodriguez, published by the Center for Space Physics: Kolkat

The correspondence between augmentations and rulings for Legendrian knots

We strengthen the link between holomorphic and generating-function invariants of Legendrian knots by establishing a formula relating the number of augmentations of a knot's contact homology to the complete ruling invariant of Chekanov and Pushkar.Comment: v2: 10 pages, 3 figures; minor revisions, to appear in Pacific J. Mat

Brambilla et al. Reply to a Comment by J. Reinhardt et al. on "Probing the equilibrium dynamics of colloidal hard spheres above the mode-coupling glass transition"

G. Brambilla et al. Reply to a Comment by J. Reinhardt et al. questioning the existence of equilibrium dynamics above the critical volume fraction of colloidal hard spheres predicted by mode coupling theory.Comment: To appear in Phys. Rev. Lett. Reply to a Comment by J. Reinhardt et al. (see arXiv:1010.2891), which questions the existence of equilibrium dynamics above the critical volume fraction of glassy colloidal hard spheres predicted by mode coupling theor

Commencement Program: 1958

Alumnae Mass Celebrant - The Most Reverend David F. Hickey, SJ Baccalaureate Address - The Reverend Joseph A. Ross, SJ, STD Conferring of Hoods - The Reverend James T. Curtin Solemn Benediction Celebrant - The Right Reverend Peter J. Dooley Deacon - The Right Reverend Frederick J. Sprenke, STL Sub-deacon - The Reverend John J. Gilsenan Senior Mass Celebrant - The Reverend William Gillespie, CM Commencement Address - The Reverend William J. Rooney, STL Presentation of Candidates - The Very Reverend Paul C. Reinert, SJ, STL Conferring of Degrees - The Most Reverend Glennon P. Flavin, STD Deacons of Honor to His Excellency - The Reverend Joseph M. O\u27Toole, The Reverend Thomas J. Odlum Solemn Benediction Celebrant - The Right Reverend James E. Hoflich Deacon - The Reverend Dominic Lavan, OSB Sub-deacon - The Reverend Walter J. Fuchs Master of Ceremonies - The Reverend Kenneth Palucza

Do High Frequency QPOs Depend on Phase of Low Frequency QPOs in XTE J1550-564 ?

We have studied the dependence of the high frequency Quasi-periodic Oscillation (QPO) (~284 Hz) on the phase of the low frequency QPO (~6 Hz) in the black hole X-ray binary XTE J1550-564 in the observations of the Rossi X-ray Timing Explorer (RXTE) performed on MJD 51241. By selecting the local maxima and the local minima in the light curve on the 6 Hz QPO time scale, we have found the corresponding high frequency QPO frequencies are consistent within 1.5 sigma. However, the average central QPO frequency of the maxima and the minima is about 2.0 sigma lower than the average high frequency QPO frequency obtained in the entire observation. This marginally suggests that the high frequency QPOs probably varies in frequency on short time scales. We briefly discuss these results and their consequences.Comment: 3 pages, 1 figure, to appear in the Proceedings of the 4th Microquasar Workshop, eds. Ph Durouchoux, Y. Fuchs and J. Rodriguez, published by the Center for Space Physics: Kolkat

Book Review: Digital Demagogue: Authoritarian Capitalism in the Age of Trump and Twitter by Christian Fuchs

Ryan J. Phillips reviews Christian Fuchs' Digital Demagogue: Authoritarian Capitalism in the Age of Trump and Twitter. Fuchs' latest work provides an excellent critical perspective on the global rise of right-wing populism and authoritarianism, and explores the specifics of Trump's brand of authoritarian ideology and its dissemination via social media platforms