Search Publications
TNOs are cool: A survey of the trans-Neptunian region. V. Physical characterization of 18 Plutinos using Herschel-PACS observations
Fornasier, S.; Hartogh, P.; Pál, A. +18 more
Context. The Herschel open time key programme TNOs are Cool: A survey of the trans-Neptunian region aims to derive physical and thermal properties for a set of ~140 Centaurs and trans-Neptunian objects (TNOs), including resonant, classical, detached and scattered disk objects. One goal of the project is to determine albedo and size distributions f…
The fast evolution of SN 2010bh associated with XRF 100316D
Greiner, J.; Klose, S.; Schady, P. +13 more
Context. The first observational evidence of a connection between supernovae (SNe) and gamma-ray bursts (GRBs) was found about a decade ago. Since then, only half a dozen spectroscopically confirmed associations have been discovered and XRF 100316D/SN 2010bh is among the latest.
Aims: We constrain the progenitor radius, the host-galaxy extinc…
Detection of warm water vapour in Taurus protoplanetary discs by Herschel
Pinte, C.; Ménard, F.; Dent, W. R. F. +12 more
Line spectra of 68 Taurus T Tauri stars were obtained with the Herschel-PACS (Photodetector Array Camera and Spectrometer) instrument as part of the GASPS (GAS evolution in Protoplanetary Systems) survey of protoplanetary discs. A careful examination of the linescans centred on the [OI] 63.18 µm fine-structure line unveiled a line at 63.32 &…
Herschel far-infrared observations of the Carina Nebula complex. I. Introduction and global cloud structure
Preibisch, T.; Roccatagliata, V.; Gaczkowski, B. +1 more
Context. The Carina Nebula represents one of the most massive star forming regions known in our Galaxy and displays a high level of feedback from the large number of very massive stars. While the stellar content is now well known from recent deep X-ray and near-infrared surveys, the properties of the clouds remained rather poorly studied until tod…
Radiation-driven winds of hot luminous stars XVI. Expanding atmospheres of massive and very massive stars and the evolution of dense stellar clusters
Pauldrach, A. W. A.; Hoffmann, T. L.; Vanbeveren, D.
Context. Starbursts play an essential role in the evolution of galaxies. In these environments, massive stars, with their short lifetimes, are of particular importance. The stellar winds of massive stars significantly influence not only on their surroundings, but the associated mass loss also profoundly affects the evolution of the stars themselve…
Distinguishing between HII regions and planetary nebulae with Hi-GAL, WISE, MIPSGAL, and GLIMPSE
García-Lario, P.; Zavagno, A.; Barlow, M. J. +2 more
Context. H II regions and planetary nebulae (PNe) both emit at radio and infrared (IR) wavelengths, and angularly small H II regions can be mistaken for PNe. This problem of classification is most severe for H II regions in an early evolutionary stage, those that are extremely distant, or those that are both young and distant. Previous work has sh…
The X-ray lightcurve of Sagittarius A* over the past 150 years inferred from Fe-Kα line reverberation in Galactic centre molecular clouds
Capelli, R.; Warwick, R. S.; Porquet, D. +2 more
Context. The spatial distribution and variability of Fe-Kα emission from molecular clouds in the Galactic centre region may provide an important key to the understanding of the recent history of Sgr A*. A very plausible interpretation is that this variability represents an echo in the reflected radiation from the clouds of a past episode of high a…
Profiling filaments: comparing near-infrared extinction and submillimetre data in TMC-1
Juvela, M.; André, Ph.; Palmeirim, P. +3 more
Context. Interstellar filaments are an important part of the star formation process. In order to understand the structure and formation of filaments, the filament cross-section profiles are often fitted with the so-called Plummer profile function. Currently this profiling is often approached with submillimetre studies, especially with Herschel. If…
Planck intermediate results. I. Further validation of new Planck clusters with XMM-Newton
Böhringer, H.; Kneissl, R.; Dahle, H. +182 more
We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-noise ratio of 4.5 < S/N < 5.3 in the same 10-month survey maps used in the construction of the Early SZ sample. The sample was selected in order to test internal …
The XMM-Newton survey of the Small Magellanic Cloud
Pietsch, W.; Haberl, F.; Hatzidimitriou, D. +13 more
Context. Although numerous archival XMM-Newton observations existed towards the Small Magellanic Cloud (SMC) before 2009, only a fraction of the whole galaxy had been covered.
Aims: Between May 2009 and March 2010, we carried out an XMM-Newton survey of the SMC, to ensure a complete coverage of both its bar and wing. Thirty-three observations…