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How are Western journalists who are killed in the course of their work remembered? Using the biographies of journalists killed covering conflict, this article investigates the discursive repertoires through which the memorialization of journalists killed while reporting conflict is accomplished. The authors argue that such journalists are consistently constructed as humanitarian, cosmopolitan witnesses engaged in supererogatory moral projects involving justice and voice for those outside of these journalists' geopolitical home communities. This particular articulation appears to herald a recent shift in the memorialization of the journalistic dead, although it is continuous with longer discourses in fields such as photojournalism and its idea of the 'concerned photographer'. We speculate that this shift is consistent with material changes in the field – in particular, the precaritization of conflict reporting driving journalists into the material and social world of professional humanitarianism, whose discourses around the moral worth and cosmopolitan nature of the work have colonized the subfield of conflict reporting. [ABSTRACT FROM AUTHOR]

This paper draws on previous work in the fields of conflict studies and journalism studies, as well as empirical work by the authors on the normative language of conflict journalism to argue that this subfield of journalism appears to have increasingly 'moved house' from the normative universe of institutional journalism to that of professional humanitarianism. We describe three shifts that are taking (or have taken) place whose effects may include a transformation of ideas around 'what conflict journalism is for' and how it understands its presence in armed conflict. [ABSTRACT FROM AUTHOR]

Arts journalism, journalism on the arts and entertainment industries, has been primarily defined in a Western European context within Journalism Studies. Yet this neglects the globalised nature of arts and entertainment production and consumption and the mobile reporters who cover it, and the nationally contingent challenges and opportunities they face. In a world still grappling with the Covid-19 pandemic, arts reporters face a triple threat: the precarity of what is often a freelance career, the financial disruption of the global media and entertainment industries, and the biases of a media ecosystem that favours reporters from the Global North. Drawing on 24 interviews with arts journalists from 12 different countries in four continents in 2020–2021, we explore how such journalists are increasingly subsidising their work with employment beyond the media sector. Arts journalists from Europe grapple with complex issues relating to their professional and personal identities, in contrast to journalists from the Global South, where questions relate primarily to economic and structural challenges. Journalists from West Africa interviewed face increasing if sporadic interest from media organisations in global economic centres, and the emerging content possibilities of internationally funded digital and streaming platforms, mirroring broader economic flows of capital and labour. [ABSTRACT FROM AUTHOR]

Contemporary reverberation mapping campaigns are employing wide-area photometric data and high-multiplex spectroscopy to efficiently monitor hundreds of active galactic nuclei (AGNs). However, the interaction of the window function(s) imposed by the observation cadence with the reverberation lag and AGN variability time-scales (intrinsic to each source over a range of luminosities) impact our ability to recover these fundamental physical properties. Time dilation effects due to the sample source redshift distribution introduce added complexity. We present comprehensive analysis of the implications of observational cadence, seasonal gaps, and campaign baseline duration (i.e. the survey window function) for reverberation lag recovery. We find that the presence of a significant seasonal gap dominates the efficacy of any given campaign strategy for lag recovery across the parameter space, particularly for those sources with observed-frame lags above 100 d. Using the Australian Dark Energy Survey as a baseline, we consider the implications of this analysis for the 4MOST/Time-Domain Extragalactic Survey campaign providing concurrent follow-up of the Legacy Survey of Space and Time deep-drilling fields, as well as upcoming programmes. We conclude that the success of such surveys will be critically limited by the seasonal visibility of some potential field choices, but show significant improvement from extending the baseline. Optimizing the sample selection to fit the window function will improve survey efficacy. [ABSTRACT FROM AUTHOR]

Metallicity gradients are important diagnostics of galaxy evolution, because they record the history of events such as mergers, gas inflow, and star formation. However, the accuracy with which gradients can be measured is limited by spatial resolution and noise, and hence, measurements need to be corrected for such effects. We use high-resolution (∼20 pc) simulation of a face-on Milky Way mass galaxy, coupled with photoionization models, to produce a suite of synthetic high-resolution integral field spectroscopy (IFS) datacubes. We then degrade the datacubes, with a range of realistic models for spatial resolution (2−16 beams per galaxy scale length) and noise, to investigate and quantify how well the input metallicity gradient can be recovered as a function of resolution and signal-to-noise ratio (SNR) with the intention to compare with modern IFS surveys like MaNGA and SAMI. Given appropriate propagation of uncertainties and pruning of low SNR pixels, we show that a resolution of 3–4 telescope beams per galaxy scale length is sufficient to recover the gradient to ∼10–20 per cent uncertainty. The uncertainty escalates to ∼60 per cent for lower resolution. Inclusion of the low SNR pixels causes the uncertainty in the inferred gradient to deteriorate. Our results can potentially inform future IFS surveys regarding the resolution and SNR required to achieve a desired accuracy in metallicity gradient measurements. [ABSTRACT FROM AUTHOR]