NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-24 T02:17:07 PDT
Help | Comment | NED Home

For refcode 1987ApJ...312..514C:
Retrieve 18 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1987ApJ...312..514C Weak disks in rapidly rotating elliptical galaxies D. Carter Abstract. An ellipse-fitting and Fourier analysis technique is used to search for systematic deviations of the isophotes of rapidly rotating elliptical galaxies from ellipses. Three or four of the galaxies show such deviations, and this is interpreted as evidence for the presence of weak disks within these galaxies. A model of NGC 4697, the galaxy which shows the strongest deviations, as the superposition of a de Vaucouleurs law spheroid and an exponential disk inclined at 10 deg to the line of sight explains the observations well. The disk luminosity in this model is 2.1 percent of the total. Such disks could also be present in other rapidly rotating elliptical galaxies, but if they were inclined at 30 deg or more to the line of sight they would be very hard to detect. The inclination-corrected peak surface brightness of the disk is 21.55 mag/sq arcsec in B. Key words: ELLIPTICAL GALAXIES, GALACTIC ROTATION, GALACTIC STRUCTURE, ROTATING DISKS, ASTRONOMICAL PHOTOMETRY, BRIGHTNESS DISTRIBUTION, COMPUTATIONAL ASTROPHYSICS, ISOPHOTES
Retrieve 18 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home