Search Publications
X-ray flux in SED modelling: An application of X-CIGALE in the XMM-XXL field
Ciesla, L.; Buat, V.; Boquien, M. +3 more
X-CIGALE is built on the spectral energy distribution (SED) code of CIGALE and implements important new features: the code accounts for obscuring material in the poles of AGNs and has the ability to fit X-ray fluxes. In this work, we used ∼2500 spectroscopic X-ray AGNs from the XMM-XXL-north field and examined the improvements the new features bri…
AGN feeding and feedback in Fornax A. Kinematical analysis of the multi-phase ISM
Gaspari, M.; Serra, P.; Smirnov, O. +10 more
We present a multi-wavelength study of the gaseous medium surrounding the nearby active galactic nucleus (AGN), Fornax A. Using MeerKAT, ALMA, and MUSE observations, we reveal a complex distribution of the atomic (H I), molecular (CO), and ionised gas in its centre and along the radio jets. By studying the multi-scale kinematics of the multi-phase…
Stereoscopy of extreme UV quiet Sun brightenings observed by Solar Orbiter/EUI
Barczynski, K.; Haberreiter, M.; Mierla, M. +27 more
Context. The three-dimensional fine structure of the solar atmosphere is still not fully understood as most of the available observations are taken from a single vantage point.
Aims: The goal of the paper is to study the three-dimensional distribution of the small-scale brightening events ("campfires") discovered in the extreme-UV quiet Sun b…
The GAPS Programme at TNG. XXVIII. A pair of hot-Neptunes orbiting the young star TOI-942
Baratella, M.; Mallonn, M.; Scandariato, G. +48 more
Context. Young stars and multi-planet systems are two types of primary objects that allow us to study, understand, and constrain planetary formation and evolution theories.
Aims: We validate the physical nature of two Neptune-sized planets transiting TOI-942 (TYC 5909-319-1), a previously unacknowledged young star (50-20+30
TOI-1201 b: A mini-Neptune transiting a bright and moderately young M dwarf
Amado, P. J.; Caballero, J. A.; Pallé, E. +63 more
We present the discovery of a transiting mini-Neptune around TOI-1201, a relatively bright and moderately young early M dwarf (J ≈ 9.5 mag, ~600-800 Myr) in an equal-mass ~8 arcsecond-wide binary system, using data from the Transiting Exoplanet Survey Satellite, along with follow-up transit observations. With an orbital period of 2.49 d, TOI-1201 …
The Chandra view of the relation between X-ray and UV emission in quasars
Civano, F.; Elvis, M.; Fabbiano, G. +4 more
We present a study of the relation between X-rays and ultraviolet emission in quasars for a sample of broad-line, radio-quiet objects obtained from the cross-match of the Sloan Digital Sky Survey DR14 with the latest Chandra Source Catalog 2.0 (2332 quasars) and the Chandra COSMOS Legacy survey (273 quasars). The non-linear relation between the ul…
C18O, 13CO, and 12CO abundances and excitation temperatures in the Orion B molecular cloud. Analysis of the achievable precision in modeling spectral lines within the approximation of the local thermodynamic equilibrium
Peretto, Nicolas; Hughes, Annie; Kainulainen, Jouni +23 more
Context. CO isotopologue transitions are routinely observed in molecular clouds for the purpose of probing the column density of the gas and the elemental ratios of carbon and oxygen, in addition to tracing the kinematics of the environment.
Aims: Our study is aimed at estimating the abundances, excitation temperatures, velocity field, and ve…
Multi-point analysis of coronal mass ejection flux ropes using combined data from Solar Orbiter, BepiColombo, and Wind
Möstl, C.; Horbury, T. S.; Baumjohann, W. +15 more
Context. The recent launch of Solar Orbiter and the flyby of BepiColombo opened a brief window during which these two spacecraft, along with the existing spacecraft at L1, were positioned in a constellation that allowed for the detailed sampling of any Earth-directed coronal mass ejection (CME). Fortunately, two such events occurred during this ti…
KiDS-1000: Constraints on the intrinsic alignment of luminous red galaxies
Hoekstra, Henk; Heymans, Catherine; Kuijken, Konrad +11 more
We constrain the luminosity and redshift dependence of the intrinsic alignment (IA) of a nearly volume-limited sample of luminous red galaxies selected from the fourth public data release of the Kilo-Degree Survey (KiDS-1000). To measure the shapes of the galaxies, we used two complementary algorithms, finding consistent IA measurements for the ov…
TOI-674b: An oasis in the desert of exo-Neptunes transiting a nearby M dwarf
Bouchy, F.; Korth, J.; Doyon, R. +59 more
Context. The NASA mission TESS is currently doing an all-sky survey from space to detect transiting planets around bright stars. As part of the validation process, the most promising planet candidates need to be confirmed and characterized using follow-up observations.
Aims: In this article, our aim is to confirm the planetary nature of the t…