Astronomical observations with an infrared array camera
Abstract
Astronomical observations with an infrared array camera demonstrate that arrays are excellent for high spatial resolution photometric mapping of celestial objects. The author describes a a 16 x 16 pixel array camera system based on a bismuth-doped silicon charge injection device optimized for use in the 8-13 micron atmospheric window. Observing techniques and image processing algorithms that are unique to the use of an array detector are also discussed. Multi-wavelength, 1-2 arcsec resolution images of three different celestial objects are presented. For the galactic center, maps of the infrared color temperature and emission optical depth are derived. The results are consistent with a model in which a low density region with a massive luminosity source at its center is encircled by a ring of gas and dust from which material may be infalling toward the nucleus. Multiple luminosity sources are not required to explain the infrared appearance of the galactic center. Images of Seyfert galaxy NGC 1068 are the first to resolve the infrared structure of the nucleus and show that it is similar to that at optical and radio wavelengths. Infrared emission extended northeast of the nucleus is identified with the radio jet. Combined with optical spectra and chargemore »
- Authors:
- Publication Date:
- Research Org.:
- Harvard Univ., Boston, MA (USA)
- OSTI Identifier:
- 5383816
- Resource Type:
- Thesis/Dissertation
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASTRONOMY; CAMERAS; ASTROPHYSICS; GALAXIES; INFRARED RADIATION; SEYFERT GALAXIES; ELECTROMAGNETIC RADIATION; RADIATIONS; 640100* - Astrophysics & Cosmology
Citation Formats
Tresch-Fienberg, R M. Astronomical observations with an infrared array camera. United States: N. p., 1985.
Web.
Tresch-Fienberg, R M. Astronomical observations with an infrared array camera. United States.
Tresch-Fienberg, R M. 1985.
"Astronomical observations with an infrared array camera". United States.
@article{osti_5383816,
title = {Astronomical observations with an infrared array camera},
author = {Tresch-Fienberg, R M},
abstractNote = {Astronomical observations with an infrared array camera demonstrate that arrays are excellent for high spatial resolution photometric mapping of celestial objects. The author describes a a 16 x 16 pixel array camera system based on a bismuth-doped silicon charge injection device optimized for use in the 8-13 micron atmospheric window. Observing techniques and image processing algorithms that are unique to the use of an array detector are also discussed. Multi-wavelength, 1-2 arcsec resolution images of three different celestial objects are presented. For the galactic center, maps of the infrared color temperature and emission optical depth are derived. The results are consistent with a model in which a low density region with a massive luminosity source at its center is encircled by a ring of gas and dust from which material may be infalling toward the nucleus. Multiple luminosity sources are not required to explain the infrared appearance of the galactic center. Images of Seyfert galaxy NGC 1068 are the first to resolve the infrared structure of the nucleus and show that it is similar to that at optical and radio wavelengths. Infrared emission extended northeast of the nucleus is identified with the radio jet. Combined with optical spectra and charge coupled device images, the new data imply a causal relationship between the Seyfert activity in the nucleus and the starburst in the disk.},
doi = {},
url = {https://www.osti.gov/biblio/5383816},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}