We report the discovery of a white dwarf exhibiting deep, irregularly shaped transits, indicative of circumstellar planetary debris. Using Zwicky Transient Facility DR2 photometry of ZTF J013906.17+524536.89 and follow-up observations from the Las Cumbres Observatory, we identify multiple transit events that recur every ≍107.2 days, much longer

We present our project to explore the stellar content of the nearest Milky Way massive star forming región, Cygnus-X. The main aim (but not the only one) is to understand the formation and evolution of single and multiple massive stars. Using the new WEAVE multifiber spectrograph attached to the 4.2-m WHT and within the SCIP survey we will secure

We report a trimodal behaviour of the spatial distribution of ionised gas within bars in the S 4G survey, in which star-forming bars are most common among late-type galaxies. We use archival GALEX far- and near-UV imaging for 772 barred galaxies and a compilation of 433 continuum-subtracted Hα images. We use both stacking techniques and visual

In this work we present a real-time pipeline for space debris studies in the IAC80 telescope. CCD images are reduced, satellite or space debris trails are detected and characterized, astrometric reduction is performed and a quality control is applied in order to reject outliers from the solutions. As a final product we obtain the equatorial

We present the discovery of the second binary with a Roche lobe-filling hot subdwarf transferring mass to a white dwarf (WD) companion. This 56 minute binary was discovered using data from the Zwicky Transient Facility. Spectroscopic observations reveal an He-sdOB star with an effective temperature of T eff = 33,700 ± 1000 K and a surface gravity

We present results from deep MUSE data in extended mode obtained for three planetary nebulae (PNe) with previously reported high abundance discrepancy factors (ADF). The spatially resolved emission maps of recombination lines (ORLs) and collisionally excited lines (CELs) of oxygen ions point to two different plasma components: one hot component