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- Centre National de la Recherche ScientifiqueFR493 papers
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22 papers · 1 filter
An extremely curved relativistic jet in PKS 2136+141
T. Savolainen, K. Wiik, E. Valtaoja +1
We report the discovery of an extremely curved jet in the high frequency peaking GPS quasar PKS 2136+141. Our multi-frequency VLBA images show a bending jet making a turn-around of…
VLT adaptive optics imaging of QSO host galaxies and close environment at z ~2.5: results from a pilot program
R. Falomo, J. K. Kotilainen, R. Scarpa +1
We report ESO-VLT near-infrared adaptive optics imaging of one radio-loud (PKS 0113-283) and two radio-quiet (Q 0045-3337 and Q 0101-337) QSOs at z > 2. In the first case, we are a…
Moment operators of the Cartesian margins of the phase space observables
J. Kiukas, P. Lahti, K. Ylinen
The theory of operator integrals is used to determine the moment operators of the Cartesian margins of the phase space observables generated by the mixtures of the number states. T…
Blue and IR Light Curves of the Mysterious Pre-Main Sequence Star V582 Mon (KH 15D) from 1955 to 1970
Paolo Maffei, Stefano Ciprini, Gino Tosti
In recent years, an increasing number of publications have been addressed to the peculiar and mysterious pre-main sequence star V582 Mon, also known as KH 15D. This extraordinary T…
Notes on coarse grainings and functions of observables
A. Dvurecenskij, P. Lahti, S. Pulmannova +1
Using the Naimark dilation theory we investigate the question under what conditions an observable which is a coarse graining of another observable is a function of it. To this end,…
The stellar content of the Hamburg/ESO survey. III. Field horizontal-branch stars in the Galaxy
N. Christlieb, T. C. Beers, C. Thom +5
We present a sample of 8321 candidate Field Horizontal-Branch (FHB) stars selected by automatic spectral classification in the digital data base of the Hamburg/ESO objective-prism…