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- Center for Astrophysics Harvard & SmithsonianUS19 papers
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10 papers · 1 filter
Discovery of Two T Dwarf Companions with the Spitzer Space Telescope
K. L. Luhman, B. M. Patten, M. Marengo +12
We report the discovery of T dwarf companions to the nearby stars HN Peg (G0V, 18.4 pc, ~0.3 Gyr) and HD 3651 (K0V, 11.1 pc, ~7 Gyr). During an ongoing survey of 5'x5' fields surro…
Optical Emission Band Morphologies of the Red Rectangle
Uma P. Vijh, Adolf N. Witt, Donald G. York +3
We present narrow-band images of the Red Rectangle (RR) nebula which reveal the distinct morphologies of this intriguing nebula in different optical emission bands. The morphology…
Simple Theoretical Models for Resonant Cold Atom Interactions
Paul S. Julienne, Bo Gao
Magnetically tunable scattering resonances have been used with great success for precise control of s-wave scattering lengths in ultracold atomic collisions. We describe relatively…
Effects of shadowing in oblique-incidence metal(100) epitaxial growth
Yunsic Shim, Jacques G. Amar
The effects of shadowing in oblique incidence metal (100) epitaxial growth are studied using a simplified model. We find that many of the features observed in Cu(100) growth, inclu…
Frequency Quantized Nondiffracting X Waves in a Confined Space
Jian-yu Lu
This paper presents theoretical results indicating that newly discovered nondiffracting beams we call X waves, can propagate in a confined space (wave guide) with specific quantize…
{Millimeter Multiplicity in NGC 6334 I and I(N)
T. R. Hunter, C. L. Brogan, S. T. Megeath +3
Using the Submillimeter Array (SMA), we have imaged the 1.3 millimeter continuum emission at the center of the massive star-forming regions NGC 6334 I and I(N). In both regions, th…