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Generation of 3-D Synthetic Data for the Modeling of the CONSERT Experiment (The Radiotomography of Comet 67P/Churyumov Gerasimenko)
Kofman, W.; Barriot, J. -P.; Barbin, Y. +1 more
The Large Binocular Camera Image Simulator
Fontana, A.; Grazian, A.; Giallongo, E. +3 more
The Large Binocular Camera Image Simulator (LBCImSim) is a package for generating artificial images in the typical FITS format. It operates on real or artificial images, simulating the expected performances of real instruments by including several observing conditions (filters, air mass, flat field, and exposure time) and creating images with the …
Celestial position of the companion of PSR J1740-5340
Bassa, C. G.; Stappers, B. W.
We present optical astrometry of archival ground and space based imaging of the companion to PSR J1740-5340. The optical position of the companion is significantly offset from the timing position of the pulsar. We briefly investigate the effects of this inconsistency on other timing parameters and compare our position with an improved position of …
The Pul-3 catalogue of 58483 stars in the Tycho-2 system
Bronnikova, N. M.; Khrutskaya, E. V.; Khovritchev, M. Yu.
A catalogue of positions and proper motions of 58483 stars (Pul-3) has been constructed at the Pulkovo observatory. The Pul-3 is based on the results of measurements of photographic plates with galaxies (Deutsch's plan). All plates were taken using the Pulkovo Normal Astrograph (the first epoch is in the 1950s and the second epoch is in the 1970s)…
Tentative detection of micron-sized forsterite grains in the proto-planetary disk surrounding HD 100453
Waters, L. B. F. M.; Dominik, C.; van Boekel, R. +4 more
We have re-analyzed the ISO-SWS spectrum of the intermediate mass pre-main-sequence star HD 100453. We confirm the weakness of the 10 µm amorphous silicate band. We have found strong indications of the presence of a crystalline silicate emission at 34 µm, which had escaped detection so far due to severe glitches in the data. The 23.5 a…
Meteoroid Streams Associated to Comets 9P/Tempel 1 and 67P/Churyumov-Gerasimenko
Jorda, L.; Lamy, P.; Vaubaillon, J.
The meteoroid streams associated to short-period comets 9P/Tempel 1 (the target of the Deep Impact mission). and 67P/Churyumov-Gerasimenko (the target of the Rosetta mission) are studied. Their structure is overwhelmingly under the control of Jupiter and repeated relatively close encounters cause a reversal of the direction of the spati…
The double radio source 3C 343.1: A galaxy-QSO pair with very different redshifts
Burbidge, E. M.; Arp, H.; Burbidge, G.
The strong radio source 3C 343.1 consists of a galaxy and a QSO separated by no more than about 0.25''. The chance of this being an accidental superposition is conservatively ∼1×10-8. The z=0.344 galaxy is connected to the z=0.750 QSO by a radio bridge. The numerical relation between the two redshifts is that predicted from p…
Proper Motions of 59 766 Stars Absolutized Using Galaxies in 149 Sky Fields (PUL2)
Bobylev, V. V.; Shakht, N. A.; Bronnikova, N. M.
The PUL2 catalog has been photographically compiled in Pulkovo according to Deutch's plan. The catalog contains the mean coordinates of stars in the ICRS system at epoch J2000.0 and their original absolute proper motions. The photographic observations were performed with a normal astrograph. The first and second epochs of the photographic plates a…
Dark baryons not in ancient halo white dwarfs
McCracken, H. J.; Reylé, C.; Robin, A. C. +5 more
Having ruled out the possibility that stellar objects are the main contributor of the dark matter embedding galaxies, microlensing experiments cannot exclude the hypothesis that a significant fraction of the Milky Way dark halo might be made of MACHOs with masses in the range 0.5-0.8 M⊙. Ancient white dwarfs are generally considered the…
XMM-Newton Observation of the Narrow-Line QSO PHL 1092: Detection of a High and Variable Soft Component
Rao, A. R.; Dewangan, G. C.; Dasgupta, Surajit
We present results based on an XMM-Newton observation of the high-luminosity narrow-line QSO PHL 1092 performed in 2003 January. The 0.3-10 keV spectrum is well described by a model that includes a power law (Γ~2.1) and two blackbody components (kT~130 eV and kT~50 eV). The soft X-ray excess emission is featureless and contributes ~80% to the tota…