5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR339 papers
- European Southern ObservatoryCL298 papers
- Center for Astrophysics Harvard & SmithsonianUS294 papers
- University of CambridgeGB274 papers
- Osservatorio Astronomico di PadovaIT271 papers
- University of WarwickGB256 papers
- Stockholm UniversitySE237 papers
- Max Planck Institute for AstrophysicsDE213 papers
- Las Cumbres Observatory Global Telescope NetworkUS211 papers
- AlbaNovaSE210 papers
- Space Telescope Science InstituteUS208 papers
- University of St AndrewsGB193 papers
105 papers · 1 filter
Electrostatic shock dynamics in superthermal plasmas
S. Sultana, G. Sarri, I. Kourakis
The propagation of ion acoustic shocks in nonthermal plasmas is investigated, both analytically and numerically. An unmagnetized collisionless electron-ion plasma is considered, fe…
Activating optomechanical entanglement
Laura Mazzola, Mauro Paternostro
We propose an optomechanical setup where the activation of entanglement through the pre-availability of non-classical correlations can be demonstrated experimentally. We analyse th…
Stellar jitter from variable gravitational redshift: implications for RV confirmation of habitable exoplanets
H. M. Cegla, C. A. Watson, T. R. Marsh +6
A variation of gravitational redshift, arising from stellar radius fluctuations, will introduce astrophysical noise into radial velocity measurements by shifting the centroid of th…
Note on the single-shock solutions of the Korteweg-de Vries-Burgers equation
Ioannis Kourakis, Sharmin Sultana, Frank Verheest
The well-known shock solutions of the Korteweg-de Vries-Burgers equation are revisited, together with their limitations in the context of plasma (astro)physical applications. Altho…
The VLT-FLAMES Tarantula Survey: The fastest rotating O-type star and shortest period LMC pulsar - remnants of a supernova disrupted binary?
P. L. Dufton, P. R. Dunstall, C. J. Evans +12
We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotati…
Experimental Quantum Networking Protocols via Four-Qubit Hyperentangled Dicke States
A. Chiuri, C. Greganti, M. Paternostro +2
We report the experimental demonstration of two quantum networking protocols, namely quantum 1->3 telecloning and open-destination teleportation, implemented using a four-qubit reg…
Thermal emission at 3.6-8 micron from WASP-19b: a hot Jupiter without a stratosphere orbiting an active star
D. R. Anderson, A. M. S. Smith, N. Madhusudhan +12
We report detection of thermal emission from the exoplanet WASP-19b at 3.6, 4.5, 5.8 and 8.0 micron. We used the InfraRed Array Camera on the Spitzer Space Telescope to observe two…
Using macroscopic entanglement to close the detection loophole in Bell inequality
Youngrong Lim, Mauro Paternostro, Jinhyoung Lee +2
We consider a Bell-like inequality performed using various instances of multi-photon entangled states to demonstrate that losses occurring after the unitary transformations used in…
Formation of helical ion chains
Ramil Nigmatullin, Adolfo del Campo, Gabriele De Chiara +3
We study the nonequilibrium dynamics of the linear to zigzag structural phase transition exhibited by an ion chain confined in a trap with periodic boundary conditions. The transit…
Multi-epoch high-resolution spectroscopy of SN2011fe - Linking the progenitor to its environment
F. Patat, M. A. Cordiner, N. L. J. Cox +10
This study attempts to establish a link between the reasonably well known nature of the progenitor of SN2011fe and its surrounding environment. This is done with the aim of enablin…
Constraining the physical properties of Type II-P supernovae using nebular phase spectra
Kate Maguire, Anders Jerkstrand, Stephen J. Smartt +6
We present a study of the nebular phase spectra of a sample of Type II-Plateau supernovae with identified progenitors or restrictive limits. The evolution of line fluxes, shapes, a…
The Origin of Type I Spicule Oscillations
D. B. Jess, D. J. Pascoe, D. J. Christian +3
We use images of high spatial and temporal resolution, obtained with the Rapid Oscillations in the Solar Atmosphere instrument at the Dunn Solar Telescope, to reveal how the genera…
Rapid Fluctuations in the Lower Solar Atmosphere
J. K. Lawrence, A. C. Cadavid, D. J. Christian +2
The Rapid Oscillations in the Solar Atmosphere (ROSA) instrument reveals solar atmospheric fluctuations at high frequencies. Spectra of variations of the G-band intensity (IG) and…
The morphology and kinematics of the Fine Ring Nebula, planetary nebula Sp 1, and the shaping influence of its binary central star
D. Jones, D. L. Mitchell, M. Lloyd +4
We present the first detailed spatio-kinematical analysis and modelling of the planetary nebula Shapley 1 (Sp 1), which is known to contain a close-binary central star system. Clos…
The Type II supernovae 2006V and 2006au: two SN 1987A-like events
F. Taddia, M. D. Stritzinger, J. Sollerman +11
Supernova 1987A revealed that a blue supergiant (BSG) star can end its life as a core-collapse supernova (SN). SN 1987A and other similar objects exhibit properties that distinguis…
SN 2009E: a faint clone of SN 1987A
A. Pastorello, M. L. Pumo, H. Navasardyan +26
In this paper we investigate the properties of SN 2009E, which exploded in a relatively nearby spiral galaxy (NGC 4141) and that is probably the faintest 1987A-like supernova disco…
Luminosity Discrepancy in the Equal-Mass, Pre--Main Sequence Eclipsing Binary Par 1802: Non-Coevality or Tidal Heating?
Y. Gómez Maqueo Chew, K. G. Stassun, A. Prša +5
Parenago 1802, a member of the ~1 Myr Orion Nebula Cluster, is a double-lined, detached eclipsing binary in a 4.674 d orbit, with equal-mass components (M_2/M_1 = 0.985 \pm 0.029).…
A comparison between star formation rate diagnostics and rate of core collapse supernovae within 11 Mpc
M. T. Botticella, S. J. Smartt, R. C. Kennicutt +3
The core collapse supernova (CCSN) rate provides a strong lower limit for the star formation rate (SFR). Progress in using it as a cosmic SFR tracer requires some confidence that i…
Demographic noise can lead to the spontaneous formation of species
Tim Rogers, Alan J. McKane, Axel G. Rossberg
When a collection of phenotypically diverse organisms compete with each other for limited resources, with competition being strongest amongst the most similar, the population can e…
The second local multiplier algebra of a separable C*-algebra
Martin Mathieu
Several examples of (separable) C*-algebras with the property that their second (iterated) local multiplier algebra is strictly larger than the first have been found by various gro…
Spectral isometries on non-simple C*-algebras
Martin Mathieu, Ahmed R. Sourour
We prove that unital surjective spectral isometries on certain non-simple unital C*-algebras are Jordan isomorphisms. Along the way, we establish several general facts in the setti…
Efficient Marginal Likelihood Computation for Gaussian Process Regression
Andrea Schirru, Simone Pampuri, Giuseppe De Nicolao +1
In a Bayesian learning setting, the posterior distribution of a predictive model arises from a trade-off between its prior distribution and the conditional likelihood of observed d…
The VLT-FLAMES survey of massive stars: NGC346-013 as a test case for massive close binary evolution
B. W. Ritchie, V. E. Stroud, C. J. Evans +5
NGC346-013 is a peculiar double-lined eclipsing binary in the Small Magellanic Cloud discovered by the VLT-FLAMES survey of massive stars. Spectra obtained with VLT-FLAMES are used…
Full stress tensor measurement using colour centres in diamond
Fabio Grazioso, Brian R. Patton, Paul Delaney +3
Stress and strain are important factors in determining the mechanical, electronic, and optical properties of materials, relating to each other by the material's elasticity or stiff…