An Improved Tully-Fisher Relation using H-Band Infrared Imaging

Details An Improved Tully-Fisher Relation using H-Band Infrared Imaging An Improved Tully-Fisher Relation using H-Band Infrared Imaging

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.6513b&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #65.13; Bulletin of the American Astronomical Society, Vol. 24, p.1223

Astronomy and Astrophysics

Astronomy

Scientific paper

We have produced Tully-Fisher (luminosity versus linewidth) diagrams for late-type spirals in several clusters using total magnitudes and inclinations derived from H-band (1.65 microns) images. One expects that the scatter in the TF relation will be reduced by moving from B- or I-band data out to the near infrared, because the effects of internal extinction by dust and of short-lived stellar populations upon the magnitudes will be decreased. More accurate determination of the inclination angle should also result from the fact that spiral structure is less prominent in the infrared than at optical wavelengths. We find that this is indeed the case, and the resultant scatter in the H-band TF relation is dominated by uncertainties in the 21 cm linewidth measurements. Infrared imaging thus provides the most accurate secondary distance indicator for galaxies at the distance of the Coma cluster (~ 10,000km s(-1) ).

Affiliated with

Also associated with

No associations

Rating

An Improved Tully-Fisher Relation using H-Band Infrared Imaging 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 An Improved Tully-Fisher Relation using H-Band Infrared Imaging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Improved Tully-Fisher Relation using H-Band Infrared Imaging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1111272