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20 papers · 2 filters
Detection of a high frequency break in the X-ray power spectrum of Ark 564
I. E. Papadakis, W. Brinkmann, H. Negoro +1
We present a power spectrum analysis of the long ASCA observation of Ark 564 in June/July 2001. The observed power spectrum covers a frequency range of ~ 3.5 decades. We detect a h…
The Pulsar Wind Nebula of G11.2-0.3
M. S. E. Roberts, C. Tam, V. M. Kaspi +4
We present high-resolution radio and X-ray studies of the composite supernova remnant G11.2-0.3. Using archival VLA data, we perform radio spectral tomography to measure for the fi…
Chandra imaging of the X-ray nebula powered by pulsar B1509-58
B. M. Gaensler, J. Arons, V. M. Kaspi +3
We present observations with the Chandra X-ray Observatory of the pulsar wind nebula (PWN) powered by the energetic young pulsar B1509-58. These data confirm the complicated morpho…
Hands-On Universe: A Global Program for Education and Public Outreach in Astronomy
M. Boer, H. Pack, C. Pennypacker +3
Hands-On Universe (HOU) is an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology. Using the…
Hands-On TAROT: Intercontinental use of the TAROT for Education and Public Outreach
M. Boer, C. Thiebaut, A. Klotz +4
The TAROT telescope has for primary goal the search for the prompt optical counterpart of Cosmic Gamma-Ray Bursts. It is a completely autonomous 25cm telescope installed near Nice…
NGC 4151: an intrinsically average Seyfert 1
Andrzej A. Zdziarski, Karen M. Leighly, Masaru Matsuoka +2
We present a detailed analysis of a long, 100 ksec, observation of NGC 4151 by ASCA, contemporaneous with an observation by the CGRO/OSSE. We fit the data with physical models incl…