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Peering through the veil: near-infrared photometry and extinction for the Galactic nuclear star cluster
- R. Schoedel, F. Najarro, K. Mužić, A. Eckart
- Physics
- 7 December 2009
The aims of this work are to provide accurate photometry in multiple near-infrared broadband filters, to determine the power-law index of the extinction-law toward the central parsec of the Galaxy,…
Massive Stars in the Arches Cluster
- D. Figer, F. Najarro, Caltech Ucb Gsfc
- Physics
- 7 August 2002
We present and use new spectra and narrowband images, along with previously published broadband images, of stars in the Arches cluster to extract photometry, astrometry, equivalent width, and…
Mass loss from hot massive stars
- J. Puls, J. Vink, F. Najarro
- Physics
- 4 November 2008
Mass loss is a key process in the evolution of massive stars, and must be understood quantitatively if it is to be successfully included in broader astrophysical applications such as galactic and…
A Massive Cluster of Red Supergiants at the Base of the Scutum-Crux Arm
- B. Davies, D. Figer, R. Kudritzki, J. MacKenty, F. Najarro, A. Herrero
- Physics
- 6 August 2007
We report on the unprecedented red supergiant (RSG) population of a massive young cluster, located at the base of the Scutum-Crux Galactic arm. We identify candidate cluster RSGs based on 2MASS…
The Nuclear Cluster of the Milky Way: Star Formation and Velocity Dispersion in the Central 0.5 Parsec
- A. Krabbe, R. Genzel, R. Kudritzki
- Physics
- 10 July 1995
We report the first results of an extensive new study of the Galactic center stellar cluster. The central parsec is powered by a cluster of about two dozen luminous and helium-rich blue…
The empirical metallicity dependence of the mass-loss rate of O- and early B-type stars
- M. R. Mokiem, A. D. Koter, M. R. Villamariz
- Physics
- 15 August 2007
We present a comprehensive study of the observational dependence of the mass-loss rate in stationary stellar winds of hot massive stars on the metal content of their atmospheres. The metal content of…
Metallicity in the Galactic Center: The Arches Cluster
- F. Najarro, D. Figer, D. J. H. P. Kudritzki
- Physics
- 9 July 2004
We present a quantitative spectral analysis of five very massive stars in the Arches cluster, located near the Galactic center, to determine stellar parameters, stellar wind properties, and, most…
Discovery of an extraordinarily massive cluster of red supergiants
- D. Figer, J. MacKenty, A. Herrero
- Physics
- 7 February 2006
We report the discovery of an extraordinarily massive young cluster of stars in the Galaxy, having an inferred total initial cluster mass comparable to the most massive young clusters in the Galaxy.…
The Arches Cluster Mass Function
- Sungsoo S. Kim, D. Figer, R. Kudritzki, F. Najarro
- Physics
- 13 November 2006
We have analyzed H- and Ks-band images of the Arches cluster obtained using the NIRC2 instrument on Keck with the laser guide star adaptive optics (LGS AO) system. With the help of the LGS AO system,…
An excess of massive stars in the local 30 Doradus starburst
- F. Schneider, H. Sana, C. Norman
- Physics, GeologyScience
- 5 January 2018
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