Astrophysicists are increasingly taking into account the effects of orbiting companions on
stellar evolution. New discoveries have underlined the role of binary star interactions in a …

Here I review the current state of the field of optical stellar interferometry, concentrating on
ground-based work although a brief report of space interferometry missions is included. We …

The Fine Guidance Sensor (FGS) is one of the four science instruments on board the James
Webb Space Telescope (JWST). FGS features two modules: an infrared camera dedicated …

We report the first use of Michelson interferometry on the Keck I telescope for diffraction‐
limited imaging in the near‐infrared JHKL bands. By using an aperture mask located close …

We present evidence for the formation of dust grains in an unusual Type Ib supernova (SN)
based on late-time spectra of SN 2006jc. The progenitor suffered an outburst qualitatively …

Massive systems made of two or more stars are known to be the site for interesting physical
processes–including at least in some cases–particle acceleration. Over the past decade, this …

We present infrared interferometric angular size measurements for the A7IV-V star Altair that
indicate a noncircular projected disk brightness distribution. Given the known rapid rotation …

We examine flash spectroscopy of a circumstellar medium (CSM) ionized by the hard
radiation pulse produced by the emerging shock of a supernova (SN). We first find that the …

We describe the radio evolution of supernova (SN) 2001ig in NGC 7424, from 700 d of
multifrequency monitoring with the Australia Telescope Compact Array (ATCA) and the Very …

Abstract The Wolf–Rayet (WR) binary system WR140 is a close (0.9–16.7 mas; ref.) binary
star consisting of an O5 primary and WC7 companion and is known as the archetype of …