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The XMM-SSC survey of hard-spectrum XMM-Newton sources - I. Optically bright sources

Page, M. J.; Boller, Th.; Carrera, F. J. +15 more

We present optical and X-ray data for a sample of serendipitous XMM-Newton sources that are selected to have 0.5-2 versus 2-4.5 keV X-ray hardness ratios which are harder than the X-ray background. The sources have 2-4.5 keV X-ray flux >=10^-14 erg cm^-2 s^-1, and in this paper we examine a subsample of 42 opticall…

The Orientation of the Dynamical Frames Relative ICRF by Use of Optical and Radar Observations Near-Earh Asteroids (NEAs)

Yagudina, E. I.

ICRF (practical realization of ICRS) is now adopted as the fundamental celestial frame in astronomy. It is based on the positions of the extragalactic radio sources obtained by VLBI observations. Zero-point of right acsentions of ICRF was chosen in a such way that the right ascention of 3C273B quasar was taken from FK5 at the same epoch. The Hippa…

LASCO SOHO Observations of Matter Flows in the Solar Corona

Delone, A. B.; Yakunina, G. V.; Porfir'eva, G. A.

The mid-infrared emission of local Luminous Infrared Galaxies

Alonso-Herrero, A.

In this paper we use the complementary imaging capabilities of Spitzer (sensitivity) and Gemini-South/T-ReCS (spatial resolution) to study the mid-IR properties of local (d < 75Mpc) LIRGs. The T-ReCS 8 - 10µm imaging observations of LIRGs have allowed us to spatially resolve the nuclear emission (star formation and/or AGN) and that of H I…

Dust Measurements During Ulysses' 2nd Jupiter Encounter

Gruen, E.; Krueger, H.

In 2004 the Ulysses spacecraft had its second flyby at Jupiter at 0.8 AU from the planet. 28 dust streams emanating from the jovian system were identified over a 26- month period while the spacecraft was within 4 AU of the planet, and the dust instrument was operating, scanning jovigraphic latitudes from +75 degrees to -25 degrees . From late 2002…

A method to determine the atmospheric temperature profile from in situ pressure data: Application to Titan

Mäkinen, T.; Leinonen, J.; Harri, A. -M.

We have developed a new method to analyse in situ observations of atmospheric variables of state: the reconstruction of the vertical temperature profile from pressure measurements accompanied by rough knowledge of the atmospheric composition and the aerodynamical response properties of the descent vehicle. We can use the method to construct the te…

Double Star TC-1 observation of the earthward flowing plasmoids in the near magnetotail

Reme, H.; Shen, Chao; Carr, C. M. +4 more

We analyze Double Star TC-1 magnetic field data from July to September in 2004 and find that plasmoids exist in the very near-Earth magnetotail. It is the first time that TC-1 observes the plasmoids in the magnetotail at X > -13 RE. According to the difference of the magnetic field structure in plasmoids, we choose two typical cases for our stu…

LASCO-C1 Spectral Analysis of Flows in the Inner Corona

Teriaca, Luca; Stenborg, Guillermo; Mierla, Marilena +2 more

Black Holes and Their Environments

Miller, Jon M.; Reynolds, Chris S.

Probing the nature of EROs through ASTRO-F/AKARI observations

Longhetti, M.; Saracco, P.; Mignano, A.