High spatial resolution observations of NGC 7027 with a 10 micron array camera

Details High spatial resolution observations of NGC 7027 with a 10 micron array camera High spatial resolution observations of NGC 7027 with a 10 micron array camera

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279..685a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 279, April 15, 1984, p. 685-693. Research supported by Steward Observatory

Astronomy and Astrophysics

Astronomy

28

Astronomical Spectroscopy, Infrared Astronomy, Interstellar Matter, Planetary Nebulae, Astronomical Maps, Charge Injection Devices, Interstellar Extinction, Spatial Resolution

Scientific paper

First observations of a planetary nebula with an infrared charge injection device (CID) array camera are reported. The 10 micron images of NGC 7027 have spatial resolution comparable to that of the highest resolution (less than 2 arcsec) radio aperture-synthesis maps of this source. A much closer correspondence between the mid-infrared and radio appearance of NGC 7027 was found than was known previously, confirming that warm dust is coextensive and well mixed with the gas in the ionized zone. Using maps at three wavelengths, the spatial dependence of the shape of the 8-13 micron spectrum within the nebula is examined. The dip at 9.60 microns is shallowest in regions of enhanced optical extinction (as determined from new images near 4000 and 9000 A obtained with an optical charge coupled device). The 9.60 micron emission is strongest in these same positions. It is shown that the results may be explained not by silicate absorption, but by a combination of emission from two distinct grain populations, one of which is also partly responsible for the variation in extinction across the nebula.

Affiliated with

Also associated with

No associations

Rating

High spatial resolution observations of NGC 7027 with a 10 micron array camera does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High spatial resolution observations of NGC 7027 with a 10 micron array camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High spatial resolution observations of NGC 7027 with a 10 micron array camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1498643