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11 papers · 2 filters
Starburst Clusters in Galactic Nuclei
Donald F. Figer, Mark Morris
Galactic nuclei often harbor a disproportionately large amount of star formation activity with respect to their surrounding disks. Not coincidentally, the density of molecular mate…
Stellar Collisions and Mergers in the Galactic Center
Donald F. Figer, Sungsoo S. Kim
Stars are most likely to merge or collide in regions of the highest stellar densities, and our own Galactic Center contains many stars packed into a relatively small volume -- even…
Mid-infrared imaging and spectroscopy of the enigmatic cocoon stars in the Quintuplet Cluster
A. Moneti, S. Stolovy, J. A. D. L. Blommaert +2
In an attempt to determine the nature of the enigmatic cocoon stars in the Quintuplet Cluster, we have obtained mid-infrared imaging and spectrophotometry of the cluster, using the…
N-Body Simulations of Compact Young Clusters near the Galactic Center
Sungsoo S. Kim, Donald F. Figer, Hyung Mok Lee +1
We investigate the dynamical evolution of compact young star clusters (CYCs) near the Galactic center (GC) using Aarseth's Nbody6 codes. The relatively small number of stars in the…
Measurement of [OIII] Emission in Lyman Break Galaxies
H. I. Teplitz, M. A. Malkan, C. C. Steidel +8
Measurements of [OIII] emission in Lyman Break galaxies (LBGs) at z>3 are presented. Four galaxies were observed with narrow-band filters using the Near-IR Camera on the Keck I 10-…
J-Band Infrared Spectroscopy of a Sample of Brown Dwarfs Using Nirspec on Keck II
Ian S. McLean, Mavourneen K. Wilcox, E. E. Becklin +7
Near-infrared spectroscopic observations of a sample of very cool, low-mass objects are presented with higher spectral resolution than in any previous studies. Six of the objects a…
The Rest-Frame Optical Spectrum of MS 1512-cB58
H. I. Teplitz, I. S. McLean, E. E. Becklin +6
Moderate resolution, near-IR spectroscopy of MS1512-cB58 is presented, obtained during commissioning of the the Near IR Spectrometer (NIRSPEC) on the Keck II telescope. The strong…
Hot Stars and Cool Clouds: The Photodissociation Region M16
N. A. Levenson, James R. Graham, Ian S. McLean +6
We present high-resolution spectroscopy and images of a photodissociation region (PDR) in M16 obtained during commissioning of NIRSPEC on the Keck II telescope. PDRs play a signifi…
K-Band Spectroscopy of an Obscured Massive Stellar Cluster in the Antennae Galaxies (NGC 4038/4039) with NIRSPEC
A. M. Gilbert, J. R. Graham, I. S. McLean +6
We present infrared spectroscopy of the Antennae Galaxies (NGC 4038/4039) with NIRSPEC at the W. M. Keck Observatory. We imaged the star clusters in the vicinity of the southern nu…
Discovery of an Obscured Broad Line Region in the High Redshift Radio Galaxy MRC 2025-218
James E. Larkin, Ian S. McLean, James R. Graham +7
This paper presents infrared spectra taken with the newly commissioned NIRSPEC spectrograph on the Keck II Telescope of the High Redshift Radio Galaxy MRC 2025-218 (z=2.63) These o…
2 micron Spectroscopy within 0.3 arcseconds of SgrA*
Donald F. Figer, E. E. Becklin, Ian S. McLean +7
We present moderate (R~~2,700) and high resolution (R~~22,000) 2.02.4 \micron\ spectroscopy of the central 0.1 square arcseconds of the Galaxy obtained with NI…