HST's View of the Youngest Massive Stars in the Magellanic Clouds

Mohammad Heydari-Malayeri (1, 2) , Michael R. Rosa (3) , Vassilis Charmandaris (1, 2, 4) , Lise Deharveng (5) , Fabrice Martins (6) , Frédéric Meynadier (1, 2) , Daniel Schaerer (7, 8) , Hans Zinnecker (9)

1 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
2 Dynamique des milieux interstellaires et plasmas stellaires
3 ST-ECF - Space Telescope European Coordinating Facility
4 Crete Center for Theoretical Physics, Department of Physics
5 OAMP - Observatoire Astronomique de Marseille Provence
6 MPE - Max-Planck-Institut für Extraterrestriche Physik
7 Observatoire Astronomique de l'Université de Genève
8 OMP - Observatoire Midi-Pyrénées
9 Potsdam Astrophysical Institute

Accurate physical parameters of newborn massive stars are essential ingredients to shed light on their formation, which is still an unsolved problem. The rare class of compact H II regions in the Magellanic Clouds (MCs), termed "high-excitation blobs" (HEBs), presents a unique opportunity to acquire this information. These objects (4" to 10", ˜1 to 3 pc, in diameter) harbor the youngest massive stars of the OB association/molecular cloud complexes in the MCs accessible through high-resolution near-IR and optical techniques. We present a brief overview of the results obtained with HST mainly on two HEBs, one in the LMC (N159-5) and the other in the SMC (N81).

Domaines: Astrophysique [astro-ph]

Mohammad Heydari-Malayeri, Michael R. Rosa, Vassilis Charmandaris, Lise Deharveng, Fabrice Martins, et al.. HST's View of the Youngest Massive Stars in the Magellanic Clouds. Macchetto, F. Duccio. The Impact of HST on European Astronomy, pp.31, 2010, ⟨10.1007/978-90-481-3400-7_6⟩. ⟨hal-03724793⟩