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A plethora of new R Coronae Borealis stars discovered from a dedicated spectroscopic follow-up survey
P. Tisserand, G. C. Clayton, M. S. Bessell +7
It is increasingly suspected that the rare R Coronae Borealis (RCB) stars - hydrogen-deficient and carbon-rich supergiant stars - are the products of mergers of CO/He white-dwarf b…
SMSS J130522.47-293113.0: a high-latitude stellar X-ray source with pc-scale outflow relics?
G. S. Da Costa, R. Soria, S. A. Farrell +17
We report the discovery of an unusual stellar system, SMSS J130522.47-293113.0. The optical spectrum is dominated by a blue continuum together with emission lines of hydrogen, neut…
Kinematic evidence for feedback-driven star formation in NGC 1893
Beomdu Lim, Hwankyung Sung, Michael S. Bessell +8
OB associations are the prevailing star forming sites in the Galaxy. Up to now, the process of how OB associations were formed remained a mystery. A possible process is self-regula…
SkyMapper Southern Survey: First Data Release (DR1)
Christian Wolf, Christopher A. Onken, Lance C. Luvaul +14
We present the first data release (DR1) of the SkyMapper Southern Survey, a hemispheric survey carried out with the SkyMapper Telescope at Siding Spring Observatory in Australia. H…