Multicolor surface photometry of 17 ellipticals

Details Multicolor surface photometry of 17 ellipticals Multicolor surface photometry of 17 ellipticals

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98..538f&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 98, Aug. 1989, p. 538-576. Research supported by Rijksuniversiteit te Leiden and Ker

Astronomy and Astrophysics

Astronomy

217

Astronomical Photometry, Elliptical Galaxies, Brightness, Ellipticity, Position, Seeing (Astronomy), Tables (Data)

Scientific paper

Multicolor two-dimensional surface photometry was used to obtain radial profiles for surface brightness, color, ellipticity, position angle, and the residuals from the fitted ellipses described by the cos(n phi) and sin(n phi) terms (where n = 3 and 4) for 17 elliptical galaxies. It is found that at radii as large as five times the seeing FWHM, seeing can affect the ellipticity at the 10 percent level and introduce uncertainty in the position angles of several degrees, particularly for very round ellipticals. The present profiles are found to agree well with previous data, with rms differences of 0.02 in ellipticity and 2 deg in position angle. The observed color gradients are consistent with a decrease in the metallicity by a factor of about 2 per decade in radius.

Affiliated with

Also associated with

No associations

Rating

Multicolor surface photometry of 17 ellipticals 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 Multicolor surface photometry of 17 ellipticals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multicolor surface photometry of 17 ellipticals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1514102