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Axisymmetric smoothed particle magnetohydrodynamics
(Oxford University Press, 2023-01-01)
Article
Open AccessMany astrophysical and terrestrial scenarios involving magnetic fields can be approached in axial geometry. Although the smoothed particle hydrodynamics (SPH) technique has been successfully extended to magneto-hydrodynamics ... -
A hidden population of white dwarfs with atmospheric carbon traces in the Gaia bifurcation
(EDP Sciences, 2023-06-01)
Article
Open AccessContext. The high-quality photometric and astrometric capabilities of the ESA Gaia space mission have revealed a bifurcation of the white dwarf sequence on the color magnitude diagram with two branches: A and B. While the ... -
Carbon-oxygen ultra-massive white dwarfs in general relativity
(Oxford University Press, 2023-08-01)
Article
Open AccessWe employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon–oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M¿ that fully take into account ... -
Transient obscuration event captured in NGC 3227: IV. Origin of the obscuring cloud variability
(EDP Sciences, 2023-05-01)
Article
Open AccessContext. Obscuration events in type I active galactic nuclei (AGN) have been detected more frequently in recent years. The strong flux decrease in the soft X-ray band between observations has been caused by clouds with ... -
Tracking the spectral properties of ESO 511-G030 across different epochs
(EDP Sciences, 2023-04-01)
Article
Open AccessThe Type 1 active galactic nucleus (AGN) ESO 511-G030, a formerly bright and soft excess dominated source, was observed in 2019 in the context of a multi-wavelength monitoring campaign. In the new exposures, the source was ... -
XGAPS: a sub-arcsec cross-match of galactic plane surveys
(Oxford University Press, 2023-01-01)
Article
Open AccessWe present a sub-arcsec cross-match of Gaia Data Release 3 (DR3) against the INT Galactic Plane Surveys (IGAPS) and the United Kingdom Infrared Deep Sky Survey (UKIDSS). The resulting cross-match of Galactic Plane Surveys ... -
Supermassive black hole winds in X-rays: SUBWAYS: I. Ultra-fast outflows in quasars beyond the local Universe
(EDP Sciences, 2023-02-01)
Article
Open AccessWe present a new X-ray spectroscopic study of 22 luminous (2 × 1045 ¿ Lbol/erg s-1 ¿ 2 × 1046) active galactic nuclei (AGNs) at intermediate redshifts (0.1 ¿ z ¿ 0.4), as part of the SUpermassive Black hole Winds in the ... -
Supermassive black hole winds in X-rays: SUBWAYS: II. HST UV spectroscopy of winds at intermediate redshifts
(EDP Sciences, 2023-02-01)
Article
Open AccessWe 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 ... -
Kinematic properties of white dwarfs. Galactic orbital parameters and age-velocity dispersion relation
(EDP Sciences, 2022-01-27)
Article
Restricted access - publisher's policyContext. Kinematic and chemical tagging of stellar populations have both revealed much information on the past and recent history of the Milky Way, including its formation history, merger events, and mixing of populations ... -
The white dwarf binary pathways survey - VI. Two close post-common envelope binaries with TESS light curves
(Oxford University Press, 2022-03-07)
Article
Open AccessEstablishing a large sample of post-common-envelope binaries (PCEBs) that consist of a white dwarf plus an intermediate mass companion star of spectral type AFGK, offers the potential to provide new constraints on theoretical ... -
Gaia 0007-1605: an old triple system with an inner brown dwarf-white dwarf binary and an outer white dwarf companion
(Institute of Physics (IOP), 2022-03-15)
Article
Open AccessWe identify Gaia 0007–1605 A,C as the first inner brown dwarf–white dwarf binary of a hierarchical triple system in which the outer component is another white dwarf (Gaia 0007–1605 B). From optical/near-infrared spectroscopy ... -
Hubble Space Telescope survey of Magellanic Cloud star clusters: photometry and astrometry of 113 clusters and early results
(EDP Sciences, 2023-04-01)
Article
Open AccessIn the past few years, we have undertaken an extensive investigation of star clusters and their stellar populations in the Large and Small Magellanic Clouds (LMC and SMC) based on archival images collected with the Hubble ...
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