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J/ApJ/643/1011 Properties of central Galaxy early-type stars (Paumard+, 2006)
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Beginning of ReadMe :J/ApJ/643/1011 Early-type stars in the center of the Galaxy (Paumard+, 2006)
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The two young star disks in the central parsec of the Galaxy:
properties, dynamics, and formation.
Paumard T., Genzel R., Martins F., Nayakshin S., Beloborodov A.M.,
Levin Y., Trippe S., Eisenhauer F., Ott T., Gillessen S., Abuter R.,
Cuadra J., Alexander T., Sternberg A.
<Astrophys. J., 643, 1011-1035 (2006)>
=2006ApJ...643.1011P
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ADC_Keywords: Stars, nearby ; Stars, early-type ; Space velocities
Keywords: Galaxy: center - stars: early-type - stars: formation -
stars: luminosity function, mass function - stellar dynamics
Abstract:
We report the definite spectroscopic identification of 40 OB
supergiants, giants, and main-sequence stars in the central parsec of
the Galaxy. Detection of their absorption lines has become possible
with the high spatial and spectral resolution and sensitivity of the
adaptive optics integral field spectrometer SPIFFI/SINFONI on the ESO
VLT. Several of these OB stars appear to be helium- and nitrogen-rich.
Description:
Data are from various data sets we have been able to obtain with both
SPIFFI as a guest instrument (in 2003) and SINFONI during its
commissioning in 2004 and guaranteed time observation (GTO) runs in
2005. These data have been taken in the K band with a resolution
R=4000 (FWHM=85km/s) and in the H+K mode (R=1500, FWHM=230km/s).
Objects:
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RA (2000) DE Designation(s)
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17 45 40.0 -29 00 28 Galactic Center = Gal 000.0+00.0
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