Douglas C.-J. Bock

TL;DR: Observations at a wavelength of 1.3 mm set a size of microarcseconds on the intrinsic diameter of Sagittarius A*, suggesting that the bulk of Sgr A* emission may not be centred on the black hole, but arises in the surrounding accretion flow.

TL;DR: This work reports the serendipitous discovery of a supernova at the time of the explosion, marked by an extremely luminous X-ray outburst, and attributes the outburst to the ‘break-out’ of the supernova shock wave from the progenitor star, and shows that the inferred rate of such events agrees with that of all core-collapse supernovae.

TL;DR: The Sydney University Molonglo Sky Survey ( SUMSS) as mentioned in this paper produces images with a resolution of 43'' × 43'' csc |δ| and an rms noise level of ~1 mJy beam-1.

TL;DR: In this paper, a gamma (γ)-ray flare with a dramatic change of optical polarization angle is reported, which provides evidence for co-spatiality of optical and γ-ray emission regions and indicates a highly ordered jet magnetic field.

TL;DR: In this paper, the authors reported the interferometric localization of the single-pulse fast radio burst (FRB 180924) to a position 4 kiloparsecs from the center of a luminous galaxy at redshift 0.3214.