Pre-Main-Sequence Star Candidates in the Bar of the Large Magellanic Cloud

See allHide authors and affiliations

Science  17 May 1996:
Vol. 272, Issue 5264, pp. 995-997
DOI: 10.1126/science.272.5264.995


Candidate pre-main-sequence stars were observed in the bar of the Large Magellanic Cloud during the search for dark matter in the galactic halo. Seven blue stars of apparent visual magnitude 15 to 17 had irregular photometric variations and hydrogen emission lines in their optical spectra, which suggested that these stars are pre-main-sequence stars of about 10 solar masses. These stars are slightly more massive and definitely more luminous than are Herbig AeBe pre-main-sequence stars in our own galaxy. Continued observations of these very young stars from another galaxy, which are probably at the pre-hydrogen-burning stage, should provide important clues about early stages of star formation.