We present astrometric, photometric and spectroscopic observations of supernova 1993J in M8 1, obtained with the Isaac Newton Group telescopes and the Carlsberg...

We present the earliest astronomical observation of a high-energy neutrino error box of which the variability was discovered after high-energy-neutrino...

We present the analysis of TESS optical photometry of WASP-121b, which reveals the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at...

In order to fully understand the gravitational collapse of molecular clouds, the star formation process, and the evolution of circumstellar disks, these...

We present V-band CCD photometry, UBVRI photopolarimetry, and near simultaneous JHK photometry of 3C 345 during a renewed outburst in spring of 1992, which...

Observations of the gravitational lens system 0957+561A, B in the R band are presented in this Letter. The observations, taken with the 82 cm IAC-80 telescope...

We present ULTRACAM multiband optical photometry of two transitional millisecond pulsars (tMSPs), PSR J1023+0038 and PSR J1227-4853, taken while both were in...

Aims.Core-collapse supernovae may show significant polarization that implies non-spherically symmetric explosions. We observed the type II-plateau SN 2005af...

We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (˜5%) of polarized...