Search Publications
Evolution of the Lyman-α-emitting fraction and UV properties of lensed star-forming galaxies in the range 2.9 < z < 6.7
Richard, J.; Pello, R.; Tuan-Anh, P. +6 more
Context. Faint galaxies are theorised to have played a major role, perhaps the dominant role, in reionising the Universe. Their properties, as well as the Lyman-α emitter (LAE) fraction, XLAE, could provide useful insights into this epoch.
Aims: We used four clusters of galaxies from the Lensed Lyman-alpha MUSE Arcs Sample (LLAMAS)…
Forbidden hugs in pandemic times. IV. Panchromatic evolution of three luminous red novae
Fugazza, D.; Lundqvist, P.; Reichart, D. E. +77 more
We present photometric and spectroscopic data on three extragalactic luminous red novae (LRNe):
The high-albedo, low polarization disk around HD 114082 that harbors a Jupiter-sized transiting planet. Constraints from VLT/SPHERE completed with TESS, Gaia, and radial velocities
Ménard, F.; Marshall, J. P.; del Burgo, C. +36 more
Aims: We present new optical and near-infrared images of the debris disk around the F-type star HD 114082 in the Scorpius-Centaurus OB association. We obtained direct imaging observations and analyzed the TESS photometric time series data of this target with the goal of searching for planetary companions to HD 114082 and characterizing the mo…
Detection of open cluster rotation fields from Gaia EDR3 proper motions
Krone-Martins, A.; Moitinho, A.; Guilherme-Garcia, P.
Context. Most stars from in groups which with time disperse, building the field population of their host galaxy. In the Milky Way, open clusters have been continuously forming in the disk up to the present time, providing it with stars spanning a broad range of ages and masses. Observations of the details of cluster dissolution are, however, scarc…
Identifying the energy release site in a solar microflare with a jet
Monstein, Christian; Krucker, Säm; Veronig, Astrid M. +10 more
Context. One of the main science questions of the Solar Orbiter and Parker Solar Probe missions deals with understanding how electrons in the lower solar corona are accelerated and how they subsequently access interplanetary space.
Aims: We aim to investigate the electron acceleration and energy release sites as well as the manner in which ac…
Compton-thick AGN in the NuSTAR Era X: Analysing seven local CT-AGN candidates
Pozzi, F.; Vignali, C.; Gilli, R. +14 more
Context. We present the broad-band X-ray spectral analysis (0.6-50 keV) of seven Compton-thick active galactic nuclei (CT-AGN; line-of-sight (LOS) column density > 1024 cm−2) candidates selected from the Swift-BAT 100 month catalogue using archival NuSTAR data.
Aims: We aim to obtain a complete census of the heavily o…
The Gaia-ESO survey: Placing constraints on the origin of r-process elements
Guiglion, G.; Randich, S.; Bragaglia, A. +19 more
Context. A renewed interest in the origin of r-process elements has been stimulated by the multi-messenger observation of the gravitational event GW170817, with the detection of both gravitational waves and electromagnetic waves corresponding to the merger of two neutron stars. Such a phenomenon has been proposed as one of the main sources of the …
INTEGRAL study of MAXI J1535−571, MAXI J1820+070, and MAXI J1348 − 630 outbursts. I. Detection and polarization properties of the high-energy emission
Belloni, T.; Petrucci, P. -O.; Rodriguez, J. +5 more
In black hole X-ray binaries, a nonthermal high-energy component is sometimes detected at energies above 200 keV. The origin of this high-energy component is debated and distinct spectral modelizations can lead to different interpretations. High-energy polarimetry measurements with the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) ena…
A Bayesian estimation of the Milky Way's circular velocity curve using Gaia DR3
Thomas, Guillaume F.; Kipper, Rain; Kolka, Indrek +5 more
Aims: Our goal is to calculate the circular velocity curve of the Milky Way, along with corresponding uncertainties that quantify various sources of systematic uncertainty in a self-consistent manner.
Methods: The observed rotational velocities are described as circular velocities minus the asymmetric drift. The latter is described by th…
3D chemical structure of the diffuse turbulent interstellar medium. II. The origin of CH+: A new solution to an 80-year mystery
Godard, B.; Hennebelle, P.; Pineau des Forêts, G. +2 more
Aims: The high abundances of CH+ in the diffuse interstellar medium (ISM) are a long-standing issue of our understanding of the thermodynamical and chemical states of the gas. We investigate here the formation of CH+ in turbulent and multiphase environments, where the heating of the gas is almost solely driven by the photoelectric …