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Date and Time of the Query: 2019-05-25 T19:56:33 PDT
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For refcode 2001MNRAS.327.1004B:
Retrieve 280 NED objects in this reference.
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Copyright by Royal Astronomical Society. 2001MNRAS.327.1004B A synthesis of data from fundamental plane and surface brightness fluctuation surveys John P. Blakeslee, John R. Lucey, Brian J. Barris, Michael J. Hudson and John L. Tonry Accepted 2001 June 29. Received 2001 June 29; in original form 2001 March 29 ABSTRACT We perform a series of comparisons between distance-independent photometric and spectroscopic properties used in the surface brightness fluctuation (SBF) and fundamental plane (FP) methods of early-type galaxy distance estimation. The data are taken from two recent surveys: the SBF Survey of Galaxy Distances and the Streaming Motions of Abell Clusters (SMAC) FP survey. We derive a relation between (V - I)_0_ colour and Mg_2_ index using nearly 200 galaxies and discuss implications for Galactic extinction estimates and early-type galaxy stellar populations. We find that the reddenings from Schlegel et al. for galaxies with E(B - V) >~ 0.2 mag appear to be overestimated by 5-10 per cent, but we do not find significant evidence for large-scale dipole errors in the extinction map. In comparison with stellar population models having solar elemental abundance ratios, the galaxies in our sample are generally too blue at a given Mg_2_ we ascribe this to the well-known enhancement of the {alpha}-elements in luminous early-type galaxies. We confirm a tight relation between stellar velocity dispersion {sigma} and the SBF 'fluctuation count' parameter N^bar^, which is a luminosity-weighted measure of the total number of stars in a galaxy. The correlation between N^bar^ and {sigma} is even tighter than that between Mg_2_ and {sigma}. Finally, we derive FP photometric parameters for 280 galaxies from the SBF survey data set. Comparisons with external sources allow us to estimate the errors on these parameters and derive the correction necessary to bring them on to the SMAC system. The data are used in a forthcoming paper, which compares the distances derived from the FP and SBF methods. Key words: galaxies: distances and redshifts - galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - galaxies: stellar content.
Retrieve 280 NED objects in this reference.
Please click here for ADS abstract

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