output
19972026
most citedThe James Webb Space Telescope

2k citations

Showing astro-phShow all

11 papers · 1 filter

astro-ph2007★ 11 cited

Externally Occulted Terrestrial Planet Finder Coronagraph: Simulations and Sensitivities

Richard G. Lyon, Sally Heap, Amy Lo +5

A multitude of coronagraphic techniques for the space-based direct detection and characterization of exo-solar terrestrial planets are actively being pursued by the astronomical co…

astro-ph2007★ 49 cited

CO(1-0), CO(2-1) and Neutral Gas in NGC 6946: Molecular Gas in a Late-Type, Gas Rich, Spiral Galaxy

Lucian Crosthwaite, Jean Turner

We present "On The Fly" maps of the CO(1-0) and CO(2-1) emission covering a 10' X 10' region of the NGC 6946. Using our CO maps and archival VLA HI observations we create a total g…

astro-ph2006★ 20 cited

Brackett Lines from the Super Star Cluster Nebulae in He 2-10

Alaina L. Henry, Jean L. Turner, Sara C. Beck +3

We present high spectral resolution (v~12-16 km/s) Brackett line spectroscopy of the blue compact dwarf galaxy Henize 2-10 made with NIRSPEC on the Keck Telescope. The spatial reso…

astro-ph2006★ 38 cited

Subarcsecond-Resolution Radio Maps of Nearby Spiral Galaxies

Chao-Wei Tsai, Jean L. Turner, Sara C. Beck +4

We report subarcsecond-resolution VLA imaging of four nearby spiral galaxies: IC 342, Maffei II, NGC 2903, and NGC 6946. In each galaxy, compact radio continuum sources are identif…

astro-ph2006

High Resolution Radio Maps of Four Nearby Spiral Galaxies

Chao-Wei Tsai, Jean L. Turner, Sara C. Beck +4

We report subarcsecond-resolution VLA imaging of the centers of four nearby spiral galaxies: IC 342, Maffei II, NGC 2903, and NGC 6946. In each galaxy, 7 - 12 compact radio continu…

astro-ph2006★ 2k cited

The James Webb Space Telescope

Jonathan P. Gardner, John C. Mather, Mark Clampin +20

The James Webb Space Telescope (JWST) is a large (6.6m), cold (50K), infrared-optimized space observatory that will be launched early in the next decade. The observatory will have…

astro-ph2005★ 80 cited

Exploring Halo Substructure with Giant Stars VIII: The Extended Structure of the Sculptor Dwarf Spheroidal Galaxy

Kyle B. Westfall, Steven R. Majewski, James C. Ostheimer +4

(Abridged) We explore the spatial distribution of stars in the Sculptor dwarf spheroidal (dSph) galaxy over an area of 7.82 deg^2. We identify red giant branch (RGB) starts via Was…

astro-ph2005★ 60 cited

Exploring Halo Substructure with Giant Stars. VI. Extended Distributions of Giant Stars Around the Carina Dwarf Spheroidal Galaxy -- How Reliable Are They?

S. R. Majewski, P. M. Frinchaboy, W. E. Kunkel +6

The question of the existence of active tidal disruption around various dSph galaxies remains controversial. That debate often centers on the nature (bound vs. unbound) of extended…

astro-ph2002★ 131 cited

Exploring Halo Substructure with Giant Stars IV: The Extended Structure of the Ursa Minor Dwarf Spheroidal

C. Palma, S. Majewski, M. Siegel +3

We present a large area photometric survey of the Ursa Minor dSph. We identify UMi giant star candidates extending to ~3 deg from the center of the dSph. Comparison to previous cat…

astro-ph1999★ 22 cited

EGRET Spectral Index and the Low-Energy Peak Position in the Spectral Energy Distribution of EGRET-Detected Blazars

Y. C. Lin

In current theoretical models of the blazar subclass of active galaxies, the broadband emission consists of two components: a low-frequency synchrotron component with a peak in the…

astro-ph1997★ 727 cited

EGRET Observations of the Extragalactic Gamma Ray Emission

P. Sreekumar

The all-sky survey in high-energy gamma rays (E30 MeV) carried out by the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma-Ray Observatory provides a un…