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Radial Distribution of Dust Grains Around HR 4796A
Z. Wahhaj, D. W. Koerner, D. E. Backman +4
We present high-dynamic-range images of circumstellar dust around HR 4796A that were obtained with MIRLIN at the Keck II telescope at lambda = 7.9, 10.3, 12.5 and 24.5 um. We also…
New Infrared Emission Features and Spectral Variations in NGC 7023
M. W. Werner, K. I. Uchida, K. Sellgren +5
We have observed the reflection nebula NGC 7023, with the Short-High module and long-slit Short-Low and Long-Low modules of the Infrared Spectrograph on the Spitzer Space Telescope…
The IRAC Shallow Survey
P. R. Eisenhardt, D. Stern, M. Brodwin +24
The IRAC shallow survey covers 8.5 square degrees in the NOAO Deep Wide-Field Survey in Bootes with 3 or more 30 second exposures per position. An overview of the survey design, re…
The nature of luminous X-ray sources with mid-infrared counterparts
A. Alonso-Herrero, P. G. Perez-Gonzalez, J. Rigby +28
We investigate the luminous X-ray sources in the Lockman Hole (LH) and the Extended Groth Strip (EGS) detected at 24microns using MIPS and also with IRAC on board Spitzer. We assem…
Spitzer Space Telescope Observations of the Aftermath of Microlensing Event MACHO-LMC-5
Hien Trong Nguyen, Nitya Kallivayalil, Michael Werner +3
We have carried out photometry of the microlensing event MACHO-LMC-5 with Spitzer's IRAC ten years after the magnification of the LMC source star was recorded. This event is unique…