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36 papers · 1 filter
B2 0648+27: a radio galaxy in a major merger
R. Morganti, T. A. Oosterloo, A. Capetti +5
We present WSRT observations of the neutral hydrogen in the nearby radio galaxy B2 0648+27. In emission, we detect a very large amount of HI (M_HI = 1.1 x 10^10 M_sun) that is dist…
The impact of the early stages of radio source evolution on the ISM of the host galaxies
R. Morganti, C. Tadhunter, T. Oosterloo +3
The study of both neutral and ionized gas in young radio sources is providing key information on the effect the radio plasma has on the ISM of these objects. We present results obt…
Stability conditions on triangulated categories
Tom Bridgeland
This paper introduces the notion of a stability condition on a triangulated category. The motivation comes from the study of Dirichlet branes in string theory, and especially from…
On the evidence for brown-dwarf secondary stars in cataclysmic variables
S. P. Littlefair, V. S. Dhillon, E. L. Martin
We present the K-band spectrum of the cataclysmic variable LL And, obtained using NIRSPEC on Keck-II. The spectrum shows no evidence for the absorption features observed by Howell…
Realising formal groups
N. P. Strickland
We show that a large class of formal groups can be realised functorially by even periodic ring spectra. The main advance is in the construction of morphisms, not of objects.
Pressure-Induced Intermediate-to-Low Spin State Transition in LaCoO3
T. Vogt, J. A. Hriljac, N. C. Hyatt +1
Synchrotron X-ray powder diffraction experiments reveal that the transition from a magnetic intermediate spin (IS) state to a nonmagnetic low-spin (LS) ground state in LaCoO3 norma…