Search Publications
Tomography of the environment of the COSMOS/AzTEC-3 submillimeter galaxy at z ∼ 5.3 revealed by Lyα and MUSE observations
Dannerbauer, H.; Marino, R.; da Cunha, E. +8 more
Context. Submillimeter galaxies (SMGs) have been proposed as the progenitors of massive ellipticals in the local Universe. Mapping the neutral gas distribution and investigating the gas accretion toward the SMGs at high redshift can provide information on the way SMG environments can evolve into clusters at z = 0.
Aims: In this work, we study…
Data reduction and restoration of spectropolarimetric microlensed hyperspectral imager data
van Noort, M.; Doerr, H. -P.
Context. A microlensed hyperspectral imager (MiHI) is an integral field spectrograph based on a double-sided microlens array.
Aims: To convert the raw data frames of such an instrument to hyperspectral cubes, and restore them to high-resolution science-ready Stokes data, a new kind of data reduction procedure is required.
Methods: An opt…
Breaking the rules at z ≃ 0.45: The rebel case of RBS 1055
Stern, D.; Bianchi, S.; Guainazzi, M. +5 more
Context. Very luminous quasars are unique sources for studying the circumnuclear environment around supermassive black holes. Several components contribute to the overall X-ray spectral shape of active galactic nuclei (AGN). The hot (kTe = 50 − 100 keV) and warm (kTe = 0.1 − 1 keV) coronae are responsible for the hard and sof…
Empirical relations between the intensities of Lyman lines of H and He+
Vial, J. -C.; Auchère, F.; Bocchialini, K. +9 more
Context. Empirical relations between major UV and extreme UV spectral lines are one of the inputs for models of chromospheric and coronal spectral radiances and irradiances. They are also needed for the interpretation of some of the observations of the Solar Orbiter mission.
Aims: We aim to determine an empirical relation between the intensit…
A polarimetric study of asteroids in comet-like orbits
Watanabe, Makoto; Imai, Masataka; Kim, Yoonyoung +16 more
Context. Asteroids in comet-like orbits (ACOs) consist of asteroids and dormant comets. Due to their similar appearance, it is challenging to distinguish dormant comets from ACOs via general telescopic observations. Surveys for discriminating dormant comets from the ACO population have been conducted via spectroscopy or optical and mid-infrared ph…
No detection of SO2, H2S, or OCS in the atmosphere of Mars from the first two Martian years of observations from TGO/ACS
Forget, F.; Montmessin, F.; Fedorova, A. A. +13 more
Context. The detection of sulphur species in the Martian atmosphere would be a strong indicator of volcanic outgassing from the surface of Mars.
Aims: We wish to establish the presence of SO2, H2S, or OCS in the Martian atmosphere or determine upper limits on their concentration in the absence of a detection.
Method…
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Scattered light detection of a possible disk wind in RY Tau
Waters, L. B. F. M.; Ginski, C.; Garufi, A. +14 more
Context. Disk winds are an important mechanism for accretion and disk evolution around young stars. The accreting intermediate-mass T-Tauri star RY Tau has an active jet and a previously known disk wind. Archival optical and new near-infrared observations of the RY Tau system show two horn-like components stretching out as a cone from RY Tau. Scat…
The SHARDDS survey: limits on planet occurrence rates based on point sources analysis via the Auto-RSM framework
Marshall, J. P.; del Burgo, C.; Absil, O. +7 more
Context. In the past decade, high contrast imaging allowed the detection and characterisation of exoplanets, brown dwarfs, and circumstellar disks. Large surveys provided new insights about the frequency and properties of massive sub-stellar companions with separations from 5 to 300 au.
Aims: In this context, our study aims to detect and char…
Quasi-stellar objects and galaxy mass density profiles derived using the submillimetre galaxies magnification bias
Bonavera, L.; González-Nuevo, J.; Cueli, M. M. +3 more
Context. The magnification bias on the submillimetre galaxies (SMGs) is a gravitational lensing effect, where the SMGs are used as background lensed galaxies. This effect can be used to investigate the mass density profiles of different types of foreground lenses.
Aims: In this work, we want to exploit the magnification bias of the SMGs using…
Monitoring accretion rate variability in the Orion Nebula Cluster with the Wendelstein Wide Field Imager
Manara, C. F.; Preibisch, T.; Ercolano, B. +2 more
Context. The understanding of the accretion process has a central role in the understanding of star and planet formation.
Aims: We aim to test how accretion variability influences previous correlation analyses of the relation between X-ray activity and accretion rates, which is important for understanding the evolution of circumstellar disks …