Context: To obtain a significant Zeeman signature in the polarised spectra of a magnetic star, we usually “add” the contributions of numerous spectral lines...
Multiperiodicity in the large-amplitude rapidly-rotating β Cephei star HD 203664
Aims.We made a seismic study of the young massive β Cephei star HD 203664 with the goal of constraining its interior structure.Methods.Our study is based on a...
Multiperiodicity in the newly discovered mid-late Be star V2104 Cygni
Aims:We obtained the first long, homogenous time-series of V2104 Cyg, consisting of 679 datapoints, with the uvbyβ photometers of the Sierra Nevada and San...
Multiphase characterization of AGN winds in five local type-2 quasars
We present MEGARA integral field unit (IFU) observations of five local type-2 quasars (QSO2s, z ∼ 0.1) from the Quasar Feedback (QSOFEED) sample. These active...
Multiphase feedback processes in the Sy2 galaxy NGC 5643
We study the multiphase feedback processes in the central ∼3 kpc of the barred Seyfert 2 galaxy NGC 5643. We used observations of the cold molecular gas (ALMA...
Multiple reference star differential imaging with VLT/SPHERE: Influence of the reference frame selection and library
Context. High-contrast imaging observations mostly rely on angular differential imaging, a successful technique for detecting point-sources, such as planets...
Multiple stellar populations in Magellanic Cloud clusters. I. An ordinary feature for intermediate age globulars in the LMC?
Context: The discovery of multiple main sequences (MS) in the massive clusters NGC 2808 and Omega Centauri, along with multiple subgiant branches in NGC 1851...
Multiple stellar populations in Magellanic Cloud clusters. II. Evidence also in the young NGC 1844?
We used Hubble Space Telescope observations to study the young cluster NGC 1844 in the Large Magellanic Cloud (LMC). We estimated the fraction and the mass...
Multiple Stokes I inversions for inferring magnetic fields in the spectral range around Cr I 5782 Å
Aims: In this work, we explore the spectral window containing Fraunhofer lines formed in the solar photosphere, around the magnetically sensitive Cr I lines at...