Engineering Papers⌕ Search

Engineering topics

Eisenhardt, P.

Publications and source records attributed to Eisenhardt, P..

At least 19 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS2012

Constructing a WISE High Resolution Galaxy Atlas

After eight months of continuous observations, the Wide-field Infrared Survey Explorer (WISE) mapped the entire sky at 3.4 micron, 4.6 micron, 12 micron, and 22 micron. We have begun a dedicated WISE High Resolution Galaxy Atlas project to fully characterize large, nearby galaxies and produce a legacy image atlas and source catalog. Here we summarize the deconvolution techniques used to significantly improve the spatial resolution of WISE imaging, specifically designed to study the internal anatomy of nearby galaxies. As a case study, we present results for the galaxy NGC 1566, comparing the WISE enhanced-resolution image processing to that of Spitzer, Galaxy Evolution Explorer, and ground-based imaging. This is the first paper in a two-part series; results for a larger sample of nearby galaxies are presented in the second paper.

Jarrett, T. H.↗
NASA NTRS2000

Deep surveys with SIRTF's infrared array camera

SIRTF guaranteed time observers have specified field surveys to be carried out with IRAC with integration times per position ranging from 90 to over 10,000 seconds. This paper describes the plans for these surveys and their application to the study of galaxy formation and evolution.

SIRTF infrared array camera IRAC Space Infrared Te↗
NASA NTRS1999

SIRTF Studies of Galaxy Formation and Evolution

The Space Infrared Telescope Facility (SIRTF) is a cornerstone of NASA's Origins program, and will complete NASA's family of Great Observations when it is launched in December 2001.

Galaxy↗
NASA NTRS1999

Young Stars and Non-Stella Emission in the Aligned Radio Galaxy 3C 256

We present ground-based images of the z=1.824 radio galaxy 3C 256 in the standard BVRIJHK filters and an interference filter centered at 8800 A, a Hubble Space Telescope image in a filter dominated by Ly alpha emission (F336W), and spectra covering rest-frame wavelengths from Ly alpha to [O III} lambda 5007.

Radio Galaxies↗
NASA NTRS1997

SIRTF and the Early Universe

Explore the source record for details and available documents.

SIRTF rest frame two micron emission redshift of t↗
NASA NTRS1995

SIRTF Studies of Galaxy Evolution

Two of the objectives for the Space Infrared Telescope Facility (SIRTF) will be studying the redshifted starlight from quiescent galaxies and studying infrared luminous starburst galaxies.

infrared astronomy red shift starburst galaxies SI↗
NASA NTRS1995

The Luminous IRAS Source FSC10214+4724 is Gravitationally Lensed

An IRAS source appears to be one of the most luminous objects known in the universe. This source has been suggested to be either a gas- rich protogalaxy or a dust embedded quasar. A strong suggestion that this source is gravitationally lensed is modeled, and implications are discussed.

IRAS Space Object Quasar Protogalaxy Astronomy↗
NASA NTRS1994

Infrared Studies of Galaxies from Space

The Kuiper Airborne Observatory has been a powerful instrument for the study of nearby galaxies, and SOFIA could probe still further into the local Universe.

extragalactic↗