Mid-Infrared Galaxy Morphology Along the Hubble Sequence

Details Mid-Infrared Galaxy Morphology Along the Hubble Sequence Mid-Infrared Galaxy Morphology Along the Hubble Sequence

2004-05-29

arxiv.org/abs/astro-ph/0405594v1

Astronomy and Astrophysics

Astrophysics

ApJS (in press), Spitzer Space Telescope Special Issue; 13 pages, LaTeX (or Latex, etc); Figure 1ab is large, color plate; ful

Scientific paper

10.1086/422914

The mid-infrared emission from 18 nearby galaxies imaged with the IRAC instrument on Spitzer Space Telescope samples the spatial distributions of the reddening-free stellar photospheric emission and the warm dust in the ISM. These two components provide a new framework for galaxy morphological classification, in which the presence of spiral arms and their emission strength relative to the starlight can be measured directly and with high contrast. Four mid-infrared classification methods are explored, three of which are based on quantitative global parameters (colors, bulge-to-disk ratio) similar to those used in the past for optical studies; in this limited sample, all correlate well with traditional B-band classification. We suggest reasons why infrared classification may be superior to optical classification.

Affiliated with

Also associated with

No associations

Rating

Mid-Infrared Galaxy Morphology Along the Hubble Sequence 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 Mid-Infrared Galaxy Morphology Along the Hubble Sequence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mid-Infrared Galaxy Morphology Along the Hubble Sequence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-136497