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相关论文: SBF: multi-wavelength data and models

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Surface Brightness Fluctuations (SBFs) are one of the most powerful techniques to measure the distance and to constrain the unresolved stellar content of extragalactic systems. For a given bandpass, the absolute SBF magnitude \bar{M}…

宇宙学与河外天体物理 · 物理学 2015-06-05 Alexander Fritz

We present some results on the study of stellar population properties and distances of galaxies using the SBF technique. The applications summarized here show that the Surface Brightness Fluctuations (SBF) method is able to i) provide…

天体物理学 · 物理学 2008-12-12 Michele Cantiello , Gabriella Raimondo , Enzo Brocato , Ilaria Biscardi

Surface Brightness Fluctuations (SBF) can provide useful information about the unresolved stellar content of early-type galaxies and spiral bulges. The absolute SBF magnitude Mbar in a given passband depends on the properties of the stellar…

星系天体物理 · 物理学 2015-05-13 John P. Blakeslee

We examine the use of surface brightness fluctuations (SBF) for both stellar population and distance studies. New V-band SBF data are reported for five Fornax cluster galaxies and combined with literature data to define a new V-band SBF…

天体物理学 · 物理学 2009-10-31 John P. Blakeslee , Alexandre Vazdekis , Edward A. Ajhar

We derive Surface Brightness Fluctuations (SBF) and integrated magnitudes in the V- and I-bands using Advanced Camera for Surveys (ACS) archival data. The sample includes 14 galaxies covering a wide range of physical properties: morphology,…

We present new theoretical models for Surface Brightness Fluctuations (SBF) both for optical and near-infrared bands in standard ground-based and Hubble Space Telescope filter systems. Simple Stellar Population simulations are adopted.…

天体物理学 · 物理学 2009-11-07 M. Cantiello , G. Raimondo , E. Brocato , M. Capaccioli

Based on very deep photometry, Surface Brightness Fluctuations (SBF) have been traditionally used to determine galaxy distances. We have recently computed SBF spectra of stellar populations at moderately high resolution, which are fully…

星系天体物理 · 物理学 2021-04-07 A. Vazdekis , P. Rodríguez-Beltrán , M. Cerviño , M. Montes , I. Martín-Navarro , M. B. Beasley

Taking advantage of the exceptional capabilities of ACS on board of HST, we derive Surface Brightness Fluctuation (SBF) measurements in the B and I bands from images of six elliptical galaxies with $1500 \leq cz \leq 3500$. Given the low…

The Surface Brightness Fluctuation (SBF) method is a powerful tool for determining distances to early-type galaxies. The method measures the intrinsic variance in a galaxy's surface brightness distribution to determine its distance with an…

宇宙学与河外天体物理 · 物理学 2023-12-29 Michele Cantiello , John P. Blakeslee

The surface brightness fluctuations (SBF) method measures the variance in a galaxy's light distribution arising from fluctuations in the numbers and luminosities of individual stars per resolution element. Once calibrated for stellar…

宇宙学与河外天体物理 · 物理学 2012-02-06 John Blakeslee

We present an in-depth study of surface brightness fluctuations (SBFs) in low-luminosity stellar systems. Using the MIST models, we compute theoretical predictions for absolute SBF magnitudes in the LSST, HST ACS/WFC, and proposed Roman…

星系天体物理 · 物理学 2021-02-23 Johnny P. Greco , Pieter van Dokkum , Shany Danieli , Scott G. Carlsten , Charlie Conroy

Dwarf galaxies are important tracers of small-scale cosmological structure, yet much of our knowledge about these systems comes from the limited sample of dwarf galaxies within the Local Group. To make a comprehensive inventory of dwarf…

星系天体物理 · 物理学 2023-10-27 Lauren M. Foster , James E. Taylor , John P. Blakeslee

The Surface Brightness Fluctuation method is one of the most reliable and efficient ways of measuring distances to galaxies within 100 Mpc. While recent implementations have increasingly relied on space-based observations, SBF remains…

The aim of this work is to explore the potential of Surface Brightness Fluctuations (SBF) for studying composite stellar populations (CSP). To do so, we have computed the standard (mean) and SBF spectra with E-MILES stellar population…

星系天体物理 · 物理学 2021-09-07 Pablo Rodriguez Beltran , Alexandre Vazdekis , Miguel Cervino , Michael Beasley

We present some results of an observational and theoretical study on unresolved stellar systems based on the Surface Brightness Fluctuations (SBF) technique. It is shown that SBF magnitudes are a valuable tracer of stellar population…

天体物理学 · 物理学 2015-05-13 M. Cantiello , E. Brocato , G. Raimondo

We present a new set of Surface Brightness Fluctuation spectra computed with the E-MILES stellar population synthesis models. The model SBF spectra cover the range 1680-50000 Angstrom at moderately high resolution, all based on extensive…

星系天体物理 · 物理学 2020-03-11 A. Vazdekis , M. Cerviño , M. Montes , I. Martín-Navarro , M. Beasley

(Abridged) We present new theoretical predictions for surface brightness fluctuations (SBFs) using models optimized for this purpose. Our predictions agree well with SBF data for globular clusters and elliptical galaxies. We provide refined…

天体物理学 · 物理学 2009-10-31 Michael C. Liu , Stephane Charlot , James R. Graham

The practice of measuring galaxy distances from their spatial fluctuations in surface brightness is now a decade old. While several past articles have included some review material, this is the first intended as a comprehensive review of…

天体物理学 · 物理学 2016-01-27 John P. Blakeslee , Edward A. Ajhar , John L. Tonry

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…

天体物理学 · 物理学 2009-11-06 S. Mei , P. J. Quinn , D. Silva

We explore the use of ground-based surface brightness fluctuation (SBF) measurements to constrain distances to nearby dwarf galaxies. Using archival CFHT Megacam imaging data for a sample of 27 nearby dwarfs, we demonstrate that reliable…

星系天体物理 · 物理学 2019-07-10 Scott Carlsten , Rachael Beaton , Johnny Greco , Jenny Greene
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