Search Publications
An extreme [O III] emitter at z = 3.2: a low metallicity Lyman continuum source
Giavalisco, M.; Castellano, M.; Pentericci, L. +16 more
Aims: Cosmic reionization is an important process occurring in the early epochs of the Universe. However, because of observational limitations due to the opacity of the intergalactic medium to Lyman continuum photons, the nature of ionizing sources is still not well constrained. While high-redshift star-forming galaxies are thought to be the …
A publicly available simulation of an enhanced network region of the Sun
De Pontieu, Bart; Carlsson, Mats; Hansteen, Viggo H. +2 more
Context. The solar chromosphere is the interface between the solar surface and the solar corona. Modelling of this region is difficult because it represents the transition from optically thick to thin radiation escape, from gas-pressure domination to magnetic-pressure domination, from a neutral to an ionised state, from MHD to plasma physics, and …
Planck 2015 results. XXVIII. The Planck Catalogue of Galactic cold clumps
Miville-Deschênes, M. -A.; Boulanger, F.; Bernard, J. -P. +220 more
We present the Planck Catalogue of Galactic Cold Clumps (PGCC), an all-sky catalogue of Galactic cold clump candidates detected by Planck. This catalogue is the full version of the Early Cold Core (ECC) catalogue, which was made available in 2011 with the Early Release Compact Source Catalogue (ERCSC) and which contained 915 high signal-to-noise s…
Planck 2015 results. XXI. The integrated Sachs-Wolfe effect
Kneissl, R.; Miville-Deschênes, M. -A.; Bernard, J. -P. +229 more
This paper presents a study of the integrated Sachs-Wolfe (ISW) effect from the Planck 2015 temperature and polarization data release. This secondary cosmic microwave background (CMB) anisotropy caused by the large-scale time-evolving gravitational potential is probed from different perspectives. The CMB is cross-correlated with different large-sc…
Planck intermediate results. XXXII. The relative orientation between the magnetic field and structures traced by interstellar dust
Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +201 more
The role of the magnetic field in the formation of the filamentary structures observed in the interstellar medium (ISM) is a debated topic owing to the paucity of relevant observations needed to test existing models. The Planck all-sky maps of linearly polarized emission from dust at 353 GHz provide the required combination of imaging and statisti…
The primordial nucleus of comet 67P/Churyumov-Gerasimenko
Jorda, L.; Lamy, P. L.; Lara, L. M. +45 more
Context. We investigate the formation and evolution of comet nuclei and other trans-Neptunian objects (TNOs) in the solar nebula and primordial disk prior to the giant planet orbit instability foreseen by the Nice model.
Aims: Our goal is to determine whether most observed comet nuclei are primordial rubble-pile survivors that formed in the s…
PTF12os and iPTF13bvn. Two stripped-envelope supernovae from low-mass progenitors in NGC 5806
Pian, E.; Sollerman, J.; Gal-Yam, A. +19 more
Context. We investigate two stripped-envelope supernovae (SNe) discovered in the nearby galaxy NGC 5806 by the (intermediate) Palomar Transient Factory [(I)PTF]. These SNe, designated PTF12os/SN 2012P and iPTF13bvn, exploded within ~520 days of one another at a similar distance from the host-galaxy center. We classify PTF12os as a Type IIb SN base…
Planck 2015 results. XII. Full focal plane simulations
Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +228 more
We present the 8th full focal plane simulation set (FFP8), deployed in support of the Planck 2015 results. FFP8 consists of 10 fiducial mission realizations reduced to 18 144 maps, together with the most massive suite of Monte Carlo realizations of instrument noise and CMB ever generated, comprising 104 mission realizations reduced to a…
Planck intermediate results. XXIX. All-sky dust modelling with Planck, IRAS, and WISE observations
Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +195 more
We present all-sky modelling of the high resolution Planck, IRAS, and WISE infrared (IR) observations using the physical dust model presented by Draine & Li in 2007 (DL, ApJ, 657, 810). We study the performance and results of this model, and discuss implications for future dust modelling. The present work extends the DL dust modelling carried …
High-mass X-ray binaries in the Small Magellanic Cloud
Haberl, F.; Sturm, R.
Aims: The last comprehensive catalogue of high-mass X-ray binaries in the Small Magellanic Cloud (SMC) was published about ten years ago. Since then new such systems were discovered, mainly by X-ray observations with Chandra and XMM-Newton. For the majority of the proposed HMXBs in the SMC no X-ray pulsations were discovered as yet, and unles…