Revealing the characteristics of the dark GRB 150309A: Dust extinguished or high-z?
Context. Dark gamma-ray bursts (GRBs) constitute a significant fraction of the GRB population. In this paper, we present a multi-wavelength analysis (both...
Revealing the inner workings of the lensed quasar SDSS J1339+1310: Insights from microlensing analysis
Aims. We aim to unveil the structure of the continuum and broad-emission line (BEL) emitting regions in the gravitationally lensed quasar SDSS J1339+1310 by...
Revealing the structure of the lensed quasar Q 0957+561. I. Accretion disk size
Aims: We aim to use signatures of microlensing induced by stars in the foreground lens galaxy to infer the size of the accretion disk in the gravitationally...
Revealing the structure of the lensed quasar Q 0957+561. II. Supermassive black hole mass via gravitational redshift
Aims: We intend to use the impact of microlensing on the Fe III λλ2039−2113 emission line blend along with a measure of its gravitational redshift to estimate...
Revealing the structure of the lensed quasar Q 0957+561. III. Constraints on the size of the broad-line region
Aims: Our aim is to examine the size, kinematics, and geometry of the broad-line region (BLR) in the double-lensed quasar Q 0957+561 by analyzing the impact of...
Reversal-free Ca II H profiles: a challenge for solar chromosphere modeling in quiet inter-network
Aims: We study chromospheric emission to understand the temperature stratification in the solar chromosphere. Methods: We observed the intensity profile of the...
Context. The discovery of Proxima b marked one of the most important milestones in exoplanetary science in recent years. Yet the limited precision of the...
Revisiting the dynamical masses of the transiting planets in the young AU Mic system: Potential AU Mic b inflation at 20 Myr
Context. Understanding planet formation is important in the context of the origin of planetary systems in general and of the Solar System in particular, as well...