Massive Stars in the Quintuplet Cluster

  title={Massive Stars in the Quintuplet Cluster},
  author={Donald F. Figer and Ian S. McLean and Mark R. Morris},
  journal={The Astrophysical Journal},
We present near-infrared photometry and K-band spectra of newly identified massive stars in the Quintuplet cluster, one of the three massive clusters projected within 50 pc of the Galactic center. We find that the cluster contains a variety of massive stars, including more unambiguously identified Wolf-Rayet stars than any cluster in the Galaxy, and over a dozen stars in earlier stages of evolution, i.e., luminous blue variables (LBVs), Ofpe/WN9, and OB supergiants. One newly identified star is… 

Tables from this paper

The Quintuplet cluster - III. Hertzsprung-Russell diagram and cluster age
The Quintuplet, one of three massive stellar clusters in the Galactic center (GC), is located about 30 pc in projection from Sagittarius A*. We aim at the construction of the Hertzsprung-Russell
Super-star clusters in the Galactic Center as revealed by HST-NICMOS
The three massive clusters in the Galactic Center are not only the most massive young clusters in the Galaxy, but they harbor more Wolf-Rayet stars than any other starburst region in the Local Group.
An updated stellar census of the Quintuplet cluster
Context. Found within the central molecular zone, the Quintuplet is one of the most massive young clusters in the Galaxy. As a consequence it offers the prospect of constraining stellar formation and
Origins of Massive Field Stars in the Galactic Center: a Spectroscopic Study
Outside of the known star clusters in the Galactic Center, a large number of evolved massive stars have been detected; but their origins remain uncertain. We present a spectroscopic study of eight
Metallicity in the GC
We review quantitative spectroscopic studies of massive stars in the three Galactic Center clusters: Quintuplet, Arches and Central cluster. Thanks to the impressive evolution of IR detectors and the
Discovery of an extraordinarily massive cluster of red supergiants
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.
Massive Stars in the SGR 1806-20 Cluster
We report the discovery of additional hot and massive stars in the cluster surrounding the soft gamma repeater SGR 1806-20, based on United Kingdom Infrared Telescope and Keck near-infrared
The Quintuplet cluster - I. A K-band spectral catalog of stellar sources
Context. Three very massive clusters are known to reside in the Galactic center region, the Arches cluster, the Quintuplet cluster, and the central parsec cluster, each of them rich in young hot
On the massive stellar population of the super star cluster Westerlund 1
We present new spectroscopic and photometric observations of the young Galactic open cluster Westerlund 1 (Wd 1) that reveal a unique population of massive evolved stars. We identify ∼200 cluster
We present a measurement of metallicity in the Galactic center Quintuplet cluster made using quantitative spectral analysis of two luminous blue variables (LBVs). The analysis employs line-blanketed


Star Formation in R136: A Cluster of O3 Stars Revealed by Hubble Space Telescope Spectroscopy*
The R136 cluster in 30 Doradus is the prototype super star cluster, and the only example sufficiently close that its massive star content can be studied directly. We have used the Hubble Space
An extraordinary cluster of massive stars near the centre of the Milky Way
The relative numbers of newborn stars of different masses in a galaxy (the initial mass function) determines whether the galaxy's interstellar gas goes mainly into long-lived low-mass stars, as in
Two New Wolf-Rayet Stars and a Luminous Blue Variable Star in the Quintuplet (AFGL 2004) Near the Galactic Center
As part of an 1800 pc2 survey of the Galactic center region in the lines of He I (2.058 μm), Brγ (2.166 μm), and the He II/C IV complex (3.09 μm), we have found two new Wolf-Rayet stars, a WN9 and a
High-Dispersion Spectroscopy of a Luminous, Young Star Cluster in NGC 1705: Further Evidence for Present-Day Formation of Globular Clusters
We present evidence that some of the compact, luminous, young star clusters discovered recently through images taken with the Hubble Space Telescope (HST) have masses comparable to those of old
The Nuclear Cluster of the Milky Way: Star Formation and Velocity Dispersion in the Central 0.5 Parsec
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 Lyman-Continuum Fluxes and Stellar Parameters of O and Early B-Type Stars
Using the results of the most recent stellar atmosphere models applied to a sample of hot stars, we construct calibrations of effective temperature (T(sub eff)), and gravity (log(sub g)) with a
A K-Band Spectral Atlas of Wolf-Rayet Stars
We present K-band spectra (R ~ 525) of 38 northern Galactic WR Stars, of which 16 are WC, 19 are WN, two are WN/WC, and one is WO. The spectra have the expected trend of stronger lines for higher
Stellar Content of the Galactic Starburst Template NGC 3603 from Adaptive Optics Observations
We present near-infrared adaptive optics imaging of the Galactic starburst template NGC 3603 and its stellar center HD 97950. There is clear evidence for the presence of stars down to 1 ${s}$ --> or
An infrared quintuplet near the Galactic center
A compact cluster of five luminous infrared sources has been found in the vicinity of the Galactic center radio arc. All of the sources have large polarizations in the near-infrared and deep silicate
An IRAS-Based Search for New Dusty Late-Type WC Wolf-Rayet Stars
I have examined all Infrared Astronomical Satellite (IRAS) data relevant to the 173 Galactic Wolf-Rayet (W-R) stars in an updated catalog, including the 13 stars newly discovered by Shara and