Context. Circumstellar disks and self-luminous giant exoplanets or companion brown dwarfs
can be characterized through direct-imaging polarimetry at near-infrared wavelengths …

Polarization is a fundamental property of light from astronomical objects, and measuring that
polarization often yields crucial information, which is unobtainable otherwise. This chapter …

ABSTRACT OJ 287 is a quasi-periodic quasar with roughly 12 year optical cycles. It displays
prominent outbursts that are predictable in a binary black hole model. The model predicted a …

In this paper we present an error analysis for polarimetric data obtained with dual‐beam
instruments. After recalling the basic concepts, we introduce the analytical expressions for …

We present the first spectropolarimetric observations of a hydrogen-free superluminous
supernova (SLSN) at z= 0.1136, namely SN 2015bn. The transient shows significant …

If Type II supernovae–the evolutionary end points of short-lived, massive stars–produce a
significant quantity of dust (> 0.1 M⊙) then they can explain the rest-frame far-infrared …

The linear polarization of the Crab pulsar and its close environment was derived from
observations with the high-speed photopolarimeter Optical Pulsar TIMing Analyser at the …

Follow-up observations of large numbers of gamma-ray burst (GRB) afterglows, facilitated by
the Swift satellite, have produced a large sample of spectral energy distributions and light …

Time-resolved polarization measurements of pulsars offer a unique insight into the geometry
of their emission regions. Such measurements provide observational constraints on the …

Following the outburst of the unusual variable star V838 Monocerotis in 2002, a spectacular
light echo appeared. A light echo provides the possibility of direct geometric distance …