Photographic and CCD surface photometry of nine early-type galaxies

Abstract

view Abstract Citations (39) References (46) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Photographic and CCD Surface Photometry of Nine Early-Type Galaxies Capaccioli, Massimo ; Piotto, Giampaolo ; Rampazzo, Roberto Abstract Detailed photometric/geometric properties for nine E type galaxies are presented, based on CCD and large-scale photographic material in B light. All the objects are nearly isolated or belong to small and loose groups. The final light profiles cover a typical range of ~10 mag, with an overall accuracy of +/- 0.1 mag in the interval 18.5 < μ_B_ < 26 (μ indicates the surface brightness in magnitudes per square arcsecond). The inner profiles along the minor axes are found to be always steeper than the extrapolations of the r^1/4^ best fits in the intermediate luminosity range. Significant deviations from the r^1/4^ law are also noted in the major-axis profiles. Our results are compared with other published data. We point out the rather large scatter in the values of the total magnitudes and the effective parameters; nonetheless, we confirm the relationship between μ_e_, and a_e_, discovered by Kormendy (1980), and other basic correlations (although with a dispersion larger than usually quoted). A comparison with the photometric/geometric R band data published by Djorgovski (1985) and Lauer (1985) and with the x-ray profiles of NGC 720 and NGC 1395 (Trinchieri et al. 1986) is also presented and discussed. Three galaxies (NGC 1172, NGC 1209, and NGC 1426) are found to mimic the photometric behavior of S0 bulges. Publication: The Astronomical Journal Pub Date: August 1988 DOI: 10.1086/114827 Bibcode: 1988AJ.....96..487C Keywords: Astronomical Photography; Astronomical Photometry; Charge Coupled Devices; Galactic Structure; Astronomical Models; Cosmic Dust; Light Curve; Astrophysics; GALAXIES: PHOTOMETRY; GALAXIES: STRUCTURE full text sources ADS | data products SIMBAD (10) NED (9)