Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Gilbert, Andrea M"'
Autor:
Gilbert, Andrea M., Graham, James R.
We present high-resolution (R ~ 24,600) near-IR spectroscopy of the youngest super star clusters (SSCs) in the prototypical starburst merger, the Antennae Galaxies. These SSCs are young (3-7 Myr old) and massive (10^5 - 10^7 M_sun for a Kroupa IMF) a
Externí odkaz:
http://arxiv.org/abs/0706.3935
Autor:
Tanner, Angelle, Figer, Donald F., Najarro, Paco, Kudritzki, Rolf P., Gilmore, Diane, Morris, Mark, Becklin, E. E., McLean, Ian S., Gilbert, Andrea M., Graham, James R., Larkin, James E., Levenson, N. A., Teplitz, Harry I.
Publikováno v:
Astrophys.J.641:891-904,2006
We present high-resolution near-infrared spectra, obtained with the NIRSPEC spectrograph on the W. M. Keck II Telescope, of a collection of hot, massive stars within the central 25 arcseconds of the Galactic center. We have identified a total of twen
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510028
Publikováno v:
Astrophys.J.596:240-252,2003
Using high-resolution (R~22,000) near-infrared (1.51 -- 1.75 microns) spectra from Keck Observatory, we measure the kinematic masses of two super star clusters in M82. Cross-correlation of the spectra with template spectra of cool evolved stars gives
Externí odkaz:
http://arxiv.org/abs/astro-ph/0306373
Autor:
Figer, Donald F., Najarro, Francisco, Gilmore, Diane, Morris, Mark, Kim, Sungsoo S., Serabyn, Eugene, McLean, Ian S., Gilbert, Andrea M., Graham, James R., Larkin, James E., Levenson, N. A., Teplitz, Harry I.
Publikováno v:
Astrophys.J.581:258-275,2002
We present and use new spectra and narrow-band images, along with previously published broad-band images, of stars in the Arches cluster to extract photometry, astrometry, equivalent width, and velocity information. The data are interpreted with a wi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0208145
Autor:
Roe, Henry G., Graham, James R., McLean, Ian S., de Pater, Imke, Becklin, E. E., Figer, Donald F., Gilbert, Andrea M., Larkin, James E., Levenson, N. A., Teplitz, Harry I., Wilcox, Mavourneen K.
We present 2.03-2.30 micron near-infrared spectroscopy of Neptune taken 1999 June 2 (UT) with the W.M. Keck Observatory's near-infrared spectrometer (NIRSPEC) during the commissioning of the instrument. The spectrum is dominated by a bright cloud fea
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107361
Autor:
Gilbert, Andrea M., Graham, James R.
We present H- and K-band NIRSPEC spectroscopy of super star clusters (SSCs) in the irregular starburst galaxy NGC 1569, obtained at the Keck Observatory. We fit these photospheric spectra to NextGen model atmospheres to obtain effective spectral type
Externí odkaz:
http://arxiv.org/abs/astro-ph/0012089
Autor:
McLean, Ian S., Wilcox, Mavourneen K., Becklin, E. E., Figer, Donald F., Gilbert, Andrea M., Graham, James R., Larkin, James E., Levenson, N. A., Teplitz, Harry I., Kirkpatrick, J. Davy
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 are L-dwarfs, ranging in spectral class from L2 to L8/9, and the sevent
Externí odkaz:
http://arxiv.org/abs/astro-ph/0003035
Autor:
Levenson, N. A., Graham, James R., McLean, Ian S., Becklin, E. E., Figer, Donald F., Gilbert, Andrea M., Larkin, James E., Teplitz, Harry I., Wilcox, Mavourneen K.
Publikováno v:
ApJ Letters, 533, L53
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 significant role in regulating star formation, and M16 offers the opportunity
Externí odkaz:
http://arxiv.org/abs/astro-ph/0002491
Autor:
Larkin, James E., McLean, Ian S., Graham, James R., Becklin, E. E., Figer, Donald F., Gilbert, Andrea M., Levenson, N. A., Teplitz, Harry I., Wilcox, Mavourneen K., Glassman, Tiffany M.
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 observations represent the deepest infrared spectra of a radio galaxy t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0002335
Autor:
Figer, Donald F., Becklin, E. E., McLean, Ian S., Gilbert, Andrea M., Graham, James R., Larkin, James E., Levenson, N. A., Teplitz, Harry I., Wilcox, Mavourneen K., Morris, Mark
We present moderate (R~$\approx$~2,700) and high resolution (R~$\approx$~22,000) 2.0$-$2.4 \micron\ spectroscopy of the central 0.1 square arcseconds of the Galaxy obtained with NIRSPEC, the facility near-infrared spectrometer for the Keck II telesco
Externí odkaz:
http://arxiv.org/abs/astro-ph/0001171