2001A&A...371..779M


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.28CET21:57:24

2001A&A...371..779M - Astronomy and Astrophysics, volume 371, 779-794 (2001/6-1)

K-band versus I-band surface brightness fluctuations as distance indicators.

MEI S., QUINN P.J. and SILVA D.R.

Abstract (from CDS):

We evaluate the method of optical and infrared Surface Brightness Fluctuations (SBF) as a distance indicator and its application on 8-m class telescopes, such as the Very Large Telescope (VLT). The novelty of our approach resides in the development of Monte Carlo simulations of SBF observations incorporating realistic elliptical galaxy stellar population models, the effects induced by globular clusters and background galaxies, instrumental noise, sky background and PSF blurring. We discuss, for each band and in different observational conditions, the errors on distance measurements arising from stellar population effects, data treatment and observational constraints. With 8-m class telescopes, one can extend I-band SBF measurements out to 6000-10000km/s. Integration times in the K-band are too expensive from the ground, due to the high infrared background for large-scale distance determination projects. Nevertheless ground-based K-band measurements are necessary to understand stellar population effects on the SBF calibration, and to prepare future space-based observations, where this band is more efficient.

Abstract Copyright:

Journal keyword(s): cosmology: observation - distance scale - large-scale structure of Universe

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2022 2
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9564 1
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14998 1
4 NGC 4489 GiG 12 30 52.240 +16 45 31.31   13.2       ~ 241 0
5 ACO 3565 ClG 13 36 39 -33 58.3           ~ 102 1
6 IC 4296 AGN 13 36 39.03275288 -33 57 57.0783023   11.52 12.99 10.00   ~ 446 2

    Equat.    Gal    SGal    Ecl

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2020.10.28-21:57:24

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