title: Pre-Main-Sequence Star Candidates in the Bar of the Large Magellanic Cloud
abstract: 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.
authors.affiliation: The EROS (Experience de Recherche d'Objets Sombres) collaboration: J. P. Beaulieu, P. Grison, R. Julien, C. Lanciaux, R. Ferlet, A. Vidal-Madjar, Institut d'Astrophysique de Paris, 98bis Boulevard, Arago, 75014 Paris, France. H. J. G. L. M. Lamers, Astronomical Institute, Princetonplein 5, NL-3584 CC Utrecht, Netherlands, and SRON Laboratory for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands. E. Bertin, Institut d'Astrophysique de Paris, 98bis Boulevard, Arago, 75014 Paris, France, and ESO La Silla, casilla 19001, Santiago 19, Chile. E. Maurice and L. Prevot, Observatoire de Marseille, 2 place Le Verrier, 13248 Marseille 04, France. C. Gry, Laboratoire d'Astronomie Spatiale CNRS, Traversee du siphon, les trois lucs, 13120 Marseille, France. J. Guibert, O. Moreau, F. Tajhmady, Centre d'Analyse des Images de l'Institut National des Sciences de l'Univers, CNRS Observatoire de Paris, 61 Avenue de l'Observatoire, 75014 Paris, France. E. Aubourg, P. Bareyre, J. de Kat, M. Gros, B. Laurent, M. Lachieze-Rey, E. Lesquoy, C. Magneville, A. Milsztajn, L. Moscoso, F. Queinnec, C. Renault, J. Rich, M. Spiro, L. Vigroux, S. Zylberajch, CEA, DSM/DAPNIA, Centre d'etudes de Saclay, 91191 Gif-sur-Yvette, France. R. Ansari, F. Cavalier, M. Moniez, Laboratoire de l'Accelerateur Lineaire IN2P3, Centre d'Orsay, 91405 Orsay, France.
authors.initials: JP
authors.lastname: Beaulieu
authors.initials: HJGLM
authors.lastname: Lamers
authors.initials: P
authors.lastname: Grison
authors.initials: R
authors.lastname: Julien
authors.initials: C
authors.lastname: Lanciaux
authors.initials: R
authors.lastname: Ferlet
authors.initials: A
authors.lastname: Vidal-Madjar
authors.initials: E
authors.lastname: Bertin
authors.initials: E
authors.lastname: Maurice
authors.initials: L
authors.lastname: Prevot
authors.initials: C
authors.lastname: Gry
authors.initials: J
authors.lastname: Guibert
authors.initials: O
authors.lastname: Moreau
authors.initials: F
authors.lastname: Tajhmady
authors.initials: E
authors.lastname: Aubourg
authors.initials: P
authors.lastname: Bareyre
authors.lastname: de Kat J
authors.initials: M
authors.lastname: Gros
authors.initials: B
authors.lastname: Laurent
authors.initials: M
authors.lastname: Lachieze-Rey
authors.initials: E
authors.lastname: Lesquoy
authors.initials: C
authors.lastname: Magneville
authors.initials: A
authors.lastname: Milsztajn
authors.initials: L
authors.lastname: Moscoso
authors.initials: F
authors.lastname: Queinnec
authors.initials: C
authors.lastname: Renault
authors.initials: J
authors.lastname: Rich
authors.initials: M
authors.lastname: Spiro
authors.initials: L
authors.lastname: Vigroux
authors.initials: S
authors.lastname: Zylberajch
authors.initials: R
authors.lastname: Ansari
authors.initials: F
authors.lastname: Cavalier
authors.initials: M
authors.lastname: Moniez