In this paper, I explore how two recent politically charged deaths—those of George Floyd and Ashli Babbitt—illuminate the broader dynamics inherent in the concept of political martyrdom and its relationship to American democracy. Political martyrdom (as distinct from that associated with religious communities) offers martyrs a life beyond the grave, not by promising eternal life or paradise, but by ensuring them a role in a community’s collective memory. It involves three components: death, in what we might call “unnatural” circumstances, generally connected to an individual’s identity (or identities) or political commitments; consecration of that death, embedding it in a community’s collective memory and ascribing to it transcendent meaning; and transmission, the passing down of martyrdom narratives over time through media, ritual, and commemorative practices. The paper uses the examples of Floyd and Babbitt to illustrate the value of this conceptual category, one that focuses less on the personal qualities of individuals and more on communities’ narrations of their lives and deaths; highlights such narratives’ capacity to build collective identities over time, often in contexts far removed from the martyrs’ own lives and deaths; and offers new interpretive lenses for considering twenty-first-century issues of systemic violence and structural injustice.

If being asked to give to charity stimulates an emotional response, like empathy, that makes giving difficult to resist, a natural self-control mechanism might be to avoid being asked in the first place. We replicate a result from a field experiment that points to the role of empathy in giving. We conduct an experiment in a large superstore in which we solicit donations to charity and randomly allow shoppers the opportunity to avoid solicitation by using the other door. We find the rate of avoidance by store entrants to be 8.9 %. However, we also find that the avoidance effect disappears in very cold weather, suggesting that avoidance behavior is sensitive to its cost.

We present the Sydney Radio Star Catalogue, a new catalogue of stars detected at megahertz to gigahertz radio frequencies. It consists of 839 unique stars with 3 405 radio detections, more than doubling the previously known number of radio stars. We have included stars from large area searches for radio stars found using circular polarisation searches, cross-matching, variability searches, and proper motion searches as well as presenting hundreds of newly detected stars from our search of Australian SKA Pathfinder observations. The focus of this first version of the catalogue is on objects detected in surveys using SKA precursor and pathfinder instruments; however, we will expand this scope in future versions. The 839 objects in the Sydney Radio Star Catalogue are distributed across the whole sky and range from ultracool dwarfs to Wolf-Rayet stars. We demonstrate that the radio luminosities of cool dwarfs are lower than the radio luminosities of more evolved sub-giant and giant stars. We use X-ray detections of 530 radio stars by the eROSITA soft X-ray instrument onboard the Spectrum Roentgen Gamma spacecraft to show that almost all of the radio stars in the catalogue are over-luminous in the radio, indicating that the majority of stars at these radio frequencies are coherent radio emitters. The Sydney Radio Star Catalogue can be found in Vizier or at https://radiostars.org.