Search Publications
The PSR J1124-5916 wind nebula in the near-infrared
Zharikov, S. V.; Zyuzin, D. A.; Mennickent, R. E. +1 more
Context. The young radio pulsar J1124-5916 is associated with the Cas A like supernova remnant G292.0+1.8. It powers a compact torus-like pulsar wind nebula with a jet first detected in X-rays and then identified in the optical and mid-infrared.
Aims: We carried out deep near-infrared observations of the pulsar field to identify the pulsar an…
A Herschel study of NGC 650
Ivison, R. J.; Olofsson, G.; Gomez, H. L. +15 more
As part of the Herschel guaranteed time key project Mass loss of Evolved StarS (MESS) we have imaged a sample of planetary nebulae. In this paper we present the Photodetector Array Camera and Spectrometer (PACS) and Spectral and Photometric Imaging Receiver (SPIRE) images of the classical bipolar planetary nebula NGC 650. We used these images to d…
Nonthermal emission properties of the northwestern rim of supernova remnant RX J0852.0-4622
Uchiyama, Y.; Kishishita, T.; Hiraga, J.
The supernova remnant (SNR) RX J0852.0-4622 (Vela Jr., G266.6-1.2) is one of the most important SNRs for investigating the acceleration of multi-TeV particles and the origin of Galactic cosmic rays because of its strong synchrotron X-ray and TeV γ-ray emission, which show a shell-like morphology similar to each other. Using the XMM-Newton archival…
Identification of transitional disks in Chamaeleon with Herschel
Prusti, T.; Pilbratt, G. L.; Bouy, H. +11 more
Context. Transitional disks are circumstellar disks with inner holes that in some cases are produced by planets and/or substellar companions in these systems. For this reason, these disks are extremely important for the study of planetary system formation.
Aims: The Herschel Space Observatory provides an unique opportunity for studying the ou…
The production of craters on the mid-sized Saturnian satellites by Centaur objects
Di Sisto, R. P.; Zanardi, M.
Context. The Saturnian satellite system has been observed in detail by the Cassini-Huygens mission. These satellites present different surface features, including impact craters caused by small objects probably coming from the trans-Neptunian region.
Aims: In this paper we calculate the production of craters on the mid-sized Saturnian satelli…
Radio emission at the centre of the galaxy cluster Abell 3560: evidence for core sloshing?
Rossetti, M.; Giacintucci, S.; Venturi, T. +4 more
Context. We study the interplay between the radio emission associated with the dominant galaxy in clusters and the properties of the surrounding intracluster medium on the basis of its X-ray emission.
Aims: Previous radio observations of the galaxy cluster A 3560, located in the Shapley Concentration core, revealed complex radio emission asso…
The HIPPARCOS parallax for Polaris
van Leeuwen, F.
This Letter follows a recent claim that the Hipparcos parallax for Polaris could be too small by 2.5 mas. It examines in detail the Hipparcos epoch astrometric data for Polaris, as well as the viability of other observations that were put forward to support a larger parallax. The Hipparcos determination of the Polaris parallax is shown to be suffi…
Masses and age of the chemically peculiar double-lined binary χ Lupi
Ménard, F.; Beust, H.; Le Bouquin, J. -B. +3 more
Aims: We aim at measuring the stellar parameters of the two chemically peculiar components of the B9.5Vp HgMn + A2 Vm double-lined spectroscopic binary HD 141556 (χ Lup), whose period is 15.25 days.
Methods: We combined historical radial velocity measurements with new spatially resolved astrometric observations from PIONIER/VLTI to recon…
Discovery of a 168.8 s X-ray pulsar transiting in front of its Be companion star in the Large Magellanic Cloud
Pietsch, W.; Haberl, F.; Greiner, J. +5 more
Aims: We report the discovery of LXP 169, a new high-mass X-ray binary in the Large Magellanic Cloud. The optical counterpart has been identified and appears to exhibit an eclipsing light curve. We performed follow-up observations to clarify the eclipsing nature of the system.
Methods: Energy spectra and time series were extracted from t…
X-ray source population study of the starburst galaxy M 83 with XMM-Newton
Pietsch, W.; Haberl, F.; Ducci, L. +1 more
Aims: We present the results obtained from the analysis of three XMM-Newton observations of M 83. The aims of the paper are studying the X-ray source populations in M 83 and calculating the X-ray luminosity functions of X-ray binaries for different regions of the galaxy.
Methods: We detected 189 sources in the XMM-Newton field of view in…