Context. Since the mid-1990s, the sample of Lyman-break galaxies (LBGs) has been growing thanks to the increasing sensitivities in the optical and in near...

We have acquired narrow and broad band imaging, together with high and low resolution spectroscopy for the source IRAS 09371+1212. As a result, we are able to...

Aims.We report the discovery of five new dwarf novae that were spectroscopically identified in the Hamburg Quasar Survey (HQS), and discuss the properties of...

We present results from a survey of dwarf galaxy candidates in the vicinity of strongly interacting galaxies. The goal of the survey was a test of the...

The X-ray transient Swift J1727.8‑1613 ended its 10-month discovery outburst in June of 2024, when it reached an optical brightness comparable to pre-discovery...

Context. Although the number of exoplanets reported in the literature exceeds 5000 so far, only a few dozen of them are young planets (≤900 Myr). However, a...

Numerical simulations of the interstellar medium under the action of a density wave provide an accurate method for determining the positions of the main...

By comparison of different parameters associated with a chaotic evolution, we discuss the relation between several populations of inner Solar System bodies...

Context. Known Mars trojans could be primordial small bodies that have remained in their present-day orbits for the age of the Solar System. Their orbital...