399 citations · 5.4k across the 153 of their papers we have counts for
7 papers · 1 filter
Chandra Observations of Variable Embedded X-ray sources in Orion. Paper I: Resolving Orion Trapezium
N. S. Schulz, C. Canizares, D. Huenemoerder +3
We used the High Energy Transmission Grating Spectrometer (HETGS) onboard the Chandra X-ray Observatory to perform two observations, separated by three weeks, of the Orion Trapeziu…
Kinematics of Molecular Hydrogen Emission from Pre-planetary Nebulae: RAFGL 2688 and RAFGL 618
Joel H. Kastner, David A. Weintraub, Ian Gatley +1
We present high spectral resolution maps of near-infrared molecular hydrogen emission from the bipolar pre-planetary nebulae RAFGL 2688 and RAFGL 618, obtained with the NOAO Phoeni…
Chandra X-ray Observatory Detection of Extended X-ray Emission from the Planetary Nebula BD+303639
Joel H. Kastner, Noam Soker, Saeqa Vrtilek +1
We report the detection of well resolved, extended X-ray emission from the young planetary nebula BD+303639 using the Advanced CCD Imaging Spectrometer (ACIS) aboard the Chandra X-…
VLA Imaging of the Disk Surrounding the Nearby Young Star TW Hya
D. J. Wilner, P. T. P. Ho, J. H. Kastner +1
The TW Hya system is perhaps the closest analog to the early solar nebula. We have used the Very Large Array to image TW Hya at wavelengths of 7mm and 3.6 cm with resolutions 0.1 a…
Pinpointing the Position of the Post-AGB Star at the Core of RAFGL 2688 using Polarimetric Imaging with NICMOS
David A. Weintraub, Joel H. Kastner, Dean C. Hines +1
We have used infrared polarimetric imaging with NICMOS to determine precisely the position of the star that illuminates (and presumably generated) the bipolar, pre-planetary reflec…
NICMOS Narrow-band Infrared Photometry of TW Hya Association Stars
David A. Weintraub, Didier Saumon, Joel H. Kastner +1
We have obtained 1.64, 1.90 and 2.15 micron narrow-band images of five T Tauri stars in the TW Hya Association (TWA) using the Near-Infrared Camera and Multiobject Spectrometer abo…