English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The numbers and types of evolved massive stars found in nearby galaxiesprovide an exacting test of stellar evolution models. Because of theirproximity and rich massive star populations, the Magellanic Clouds have longserved as the linchpins for such studies. Yet the continued accidentaldiscoveries of Wolf-Rayet (WR) stars in these systems demonstrate that ourknowledge is not as complete as usually assumed. Therefore, we undertook amulti-year survey for WRs in the Magellanic Clouds. Our results from our firstyear (reported previously) confirmed nine new LMC WRs. Of these, six were of atype never before recognized, with WN3-type emission combined with O3-typeabsorption features. Yet these stars are 2-3 magnitudes too faint to be WN3+O3V binaries. Here we report on the second year of our survey, including thediscovery of four more WRs, two of which are also WN3/O3s, plus two "slash"WRs. This brings the total of LMC WRs known to 152, 13 (8.2%) of which werefound by our survey, which is now 60% complete. We find that the spatialdistribution of the WN3/O3s are similar to that of other WRs in the LMC,suggesting that they are descended from the same progenitors. We call attentionto the fact that five of the 12 known SMC WRs may in fact be similar WN3/O3srather than the binaries they have often assumed to be. We also discuss ourother discoveries: a newly found Onfp-type star, and a peculiar emission-lineobject. Finally, we consider the completeness limits of our survey.

A Modern Search for Wolf-Rayet Stars in the Magellanic Clouds. II. A Second Year of Discoveries