Search Publications
The stripping of a galaxy group diving into the massive cluster A2142
Rossetti, M.; Paltani, S.; Molendi, S. +7 more
Structure formation in the current Universe operates through the accretion of group-scale systems onto massive clusters. The detection and study of such accreting systems is crucial to understand the build-up of the most massive virialized structures we see today. We report the discovery with XMM-Newton of an irregular X-ray substructure in the ou…
Planck intermediate results. XV. A study of anomalous microwave emission in Galactic clouds
Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +183 more
Anomalous microwave emission (AME) is believed to be due to electric dipole radiation from small spinning dust grains. The aim of this paper is a statistical study of the basic properties of AME regions and the environment in which they emit. We used WMAP and Planck maps, combined with ancillary radio and IR data, to construct a sample of 98 candi…
Intracluster light properties in the CLASH-VLT cluster MACS J1206.2-0847
Zheng, W.; Molino, A.; Moustakas, J. +46 more
Aims: We aim constrain the assembly history of clusters by studying the intracluster light (ICL) properties, estimating its contribution to the fraction of baryons in stars, f∗, and understanding possible systematics or bias using different ICL detection techniques.
Methods: We developed an automated method, GALtoICL, based on…
Planck 2013 results. X. HFI energetic particle effects: characterization, removal, and simulation
Kneissl, R.; Miville-Deschênes, M. -A.; Bernard, J. -P. +213 more
We describe the detection, interpretation, and removal of the signal resulting from interactions of high energy particles with the Planck High Frequency Instrument (HFI). There are two types of interactions: heating of the 0.1 K bolometer plate; and glitches in each detector time stream. The transientresponses to detector glitch shapes are not sim…
New light on gamma-ray burst host galaxies with Herschel
Berta, S.; Le Floc'h, E.; Covino, S. +17 more
Until recently, dust emission has been detected in very few host galaxies of gamma-ray bursts (GRBHs). With Herschel, we have now observed 17 GRBHs up to redshift z ~ 3 and detected 7 of them at infrared (IR) wavelengths. This relatively high detection rate (41%) may be due to the composition of our sample which at a median redshift of 1.1 is domi…
The Mrk 231 molecular outflow as seen in OH
Lutz, D.; Poglitsch, A.; Sturm, E. +12 more
We report on the Herschel/PACS observations of OH in Mrk 231, with detections in nine doublets observed within the PACS range, and present radiative-transfer models for the outflowing OH. Clear signatures of outflowing gas are found in up to six OH doublets with different excitation requirements. At least two outflowing components are identified, …
Ionization compression impact on dense gas distribution and star formation. Probability density functions around H II regions as seen by Herschel
Hill, T.; White, G. J.; André, Ph. +22 more
Aims: Ionization feedback should impact the probability distribution function (PDF) of the column density of cold dust around the ionized gas. We aim to quantify this effect and discuss its potential link to the core and initial mass function (CMF/IMF).
Methods: We used Herschel column density maps of several regions observed within the …
"TNOs are Cool": A survey of the trans-Neptunian region. X. Analysis of classical Kuiper belt objects from Herschel and Spitzer observations
Fornasier, S.; Pál, A.; Lellouch, E. +14 more
Context. The Kuiper belt is formed of planetesimals which failed to grow to planets and its dynamical structure has been affected by Neptune. The classical Kuiper belt contains objects both from a low-inclination, presumably primordial, distribution and from a high-inclination dynamically excited population.
Aims: Based on a sample of classic…
Planck 2013 results. XXXI. Consistency of the Planck data
Miville-Deschênes, M. -A.; Bernard, J. -P.; Planck Collaboration +181 more
The Planck design and scanning strategy provide many levels of redundancy that can be exploited to provide tests of internal consistency. One of the most important is the comparison of the 70 GHz (amplifier) and 100 GHz (bolometer) channels. Based on different instrument technologies, with feeds located differently in the focal plane, analysed ind…
X-ray monitoring of classical novae in the central region of M 31 III. Autumn and winter 2009/10, 2010/11, and 2011/12
Della Valle, M.; Pietsch, W.; Haberl, F. +7 more
Context. Classical novae (CNe) represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbouring galaxy M 31.
Aims: We performed a dedicated monitoring of the M 31 central region, which aimed to detect SSS counterparts of CNe, with XMM-Newton and Chandra between Nov. and Mar. of the years 2009/10, 2010/11, …