INVESTIGADORES
GAMEN Roberto Claudio
congresos y reuniones científicas
Título:
First whole-sky results from the Galactic O-Star Spectroscopic Survey
Autor/es:
MAÍZ APELLÁNIZ, J.; SOTA, A.; MORRELL, N. I.; BARBÁ, R.; WALBORN, N.; ALFARO, E.; GAMEN, R. C.; ARIAS, J.; GALLEGO CALVENTE, A. T.
Lugar:
Rodas
Reunión:
Workshop; Massive Stars: From α to Ω; 2013
Institución organizadora:
Institute of Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens
Resumen:
The Galactic O-Star Spectroscopic Survey (GOSSS) is obtaining high
quality R?2500 blue-violet spectroscopy of all Galactic stars ever
classified as of O type with B < 12 and a significant fraction of
those with B = 12-14. As of March 2013, we have obtained, processed, and
classified 2543 spectra of 1521 stars, including all of the sample with
B < 8 and most of the sample with B = 8-10, making GOSSS already the
largest collection of high quality O-star optical spectra ever assembled
by a factor of 3. We will discuss the fraction of false positives in
previous classifications and the implications of the observed spectral
type-magnitude-color distribution for the spatial distribution of
massive stars and dust within a few kpc of the Sun. We will also present
some of the new serendipitous discoveries of peculiar objects allowed by
the size and completeness of the sample. Finally, we will also present
the new version of the Galactic O-Star Catalog (GOSC), which
incorporates the new GOSSS data and that will be made available during
the conference.