Search Publications
The slippery slope of dust attenuation curves. Correlation of dust attenuation laws with star-to-dust compactness up to z = 4
Ciesla, L.; Buat, V.; Małek, K. +5 more
Aims: We investigate the dust attenuation of 122 heavily dust-obscured galaxies detected with the Atacama Large Millimeter Array (ALMA) and Herschel in the COSMOS field. We search for correlations between dust attenuation recipes and the variation of physical parameters, namely, the effective radii of galaxies, their star formation rates, and…
Evidence of external reconnection between an erupting mini-filament and ambient loops observed by Solar Orbiter/EUI
Barczynski, K.; Peter, H.; Chitta, L. P. +16 more
Mini-filament eruptions are one of the most common small-scale transients in the solar atmosphere. However, their eruption mechanisms are still not understood thoroughly. Here, with a combination of 174 Å images of high spatio-temporal resolution taken by the Extreme Ultraviolet Imager on board Solar Orbiter and images of the Atmospheric Imaging A…
New insights into the rotational evolution of near-solar age stars from the open cluster M 67
Gruner, D.; Barnes, S. A.; Weingrill, J.
Context. Gyrochronology allows the derivation of ages for cool main sequence stars from their observed rotation periods and masses, or a suitable proxy of the latter. It is increasingly well explored for FGK stars, but requires further measurements for older ages and K-M-type stars.
Aims: Recent work has shown that the behavior of stellar spi…
A ∼15 kpc outflow cone piercing through the halo of the blue compact metal-poor galaxy SBS 0335-052E
Östlin, G.; Hayes, M.; Monreal-Ibero, A. +11 more
Context. Outflows from low-mass star-forming galaxies are a fundamental ingredient for models of galaxy evolution and cosmology. Despite seemingly favourable conditions for outflow formation in compact starbursting galaxies, convincing observational evidence for kiloparsec-scale outflows in such systems is scarce.
Aims: The onset of kiloparse…
Power-2 limb-darkening coefficients for the uvby, UBVRIJHK, SDSS ugriz, Gaia, Kepler, TESS, and CHEOPS photometric systems. II. PHOENIX spherically symmetric stellar atmosphere models
Southworth, J.; Claret, A.
Context. The phenomenon of limb-darkening is relevant to many topics in astrophysics, including the analysis of light curves of eclipsing binaries, optical interferometry, measurement of stellar diameters, line profiles of rotating stars, gravitational microlensing, and transits of extrasolar planets
Aims: Multiple parametric limb-darkening l…
The Corona Australis star formation complex is accelerating away from the Galactic plane
Meingast, Stefan; Alves, João; Zucker, Catherine +5 more
We study the kinematics of the recently discovered Corona Australis (CrA) chain of clusters by examining the 3D space motion of its young stars using Gaia DR3 and APOGEE-2 data. While we observe linear expansion between the clusters in the Cartesian XY directions, the expansion along Z exhibits a curved pattern. To our knowledge, this is the first…
Linking the dust and chemical evolution: Taurus and Perseus. New collisional rates for HCN, HNC, and their C, N, and H isotopologues
Roueff, E.; Sarazin, C. L.; Kramer, C. +18 more
Context. HCN, HNC, and their isotopologues are ubiquitous molecules that can serve as chemical thermometers and evolutionary tracers to characterize star-forming regions. Despite their importance in carrying information that is vital to studies of the chemistry and evolution of star-forming regions, the collision rates of some of these molecules h…
Supermassive Black Hole Winds in X-rays: SUBWAYS. II. HST UV spectroscopy of winds at intermediate redshifts
Kaastra, J. S.; Kriss, G. A.; Bianchi, S. +35 more
We present a UV spectroscopic study of ionized outflows in 21 active galactic nuclei (AGN), observed with the Hubble Space Telescope (HST). The targets of the Supermassive Black Hole Winds in X-rays (SUBWAYS) sample were selected with the aim to probe the parameter space of the underexplored AGN between the local Seyfert galaxies and the luminous …
Brightness and mass accretion rate evolution during the 2022 burst of EX Lupi
Lykou, F.; Varga, J.; Kóspál, Á. +18 more
Context. EX Lupi is the prototype by which EXor-type outbursts have been defined. It has experienced multiple accretion-related bursts and outbursts throughout the past decades, and the study of these events has greatly extended our knowledge about their effects. Notably, this star experienced a new burst in 2022.
Aims: We aim to investigate …
Time evolution of Ce as traced by APOGEE using giant stars observed with the Kepler, TESS and K2 missions
Chiappini, C.; Tailo, M.; Miglio, A. +11 more
Context. Abundances of slow neutron-capture process (s-process) elements in stars with exquisite asteroseismic, spectroscopic, and astrometric constraints offer a novel opportunity to study stellar evolution, nucleosynthesis, and Galactic chemical evolution.
Aims: We investigate one of the least studied s-process elements in the literature, c…