Results 11 to 20 of about 30,632 (275)
On the Nature of X-ray Surface Brightness Fluctuations in M87 [PDF]
The Astrophysical Journal, 2015 X-ray images of galaxy clusters and gas-rich elliptical galaxies show a wealth of small-scale features which reflect fluctuations in density and/or temperature of the intra-cluster medium.
Arévalo, P. +4 more
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The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters [PDF]
The Astrophysical Journal, 1998 We present IR surface brightness fluctuation (SBF) distance measurements to NGC 4889 in the Coma cluster and to NGC 3309 and NGC 3311 in the Hydra cluster.
Casali M. +5 more
core +6 more sources
The Distance to the Coma Cluster from Surface Brightness Fluctuations
The Astrophysical Journal, 1997 We report on the first determination of the distance to the Coma Cluster based on surface brightness fluctuation (SBF) measurements obtained from Hubble Space Telescope WFPC2 observations of the bright E0 galaxy NGC 4881 in the Coma Cluster and ground ...
Bjarne Thomsen +7 more
core +4 more sources
Forecasting Constraints from Surface Brightness Fluctuations in Galaxy Clusters
The Astrophysical JournalStudies of surface brightness (SB) fluctuations in the intracluster medium present an indirect estimate of turbulent pressure support and associated Mach numbers.
Charles E. Romero
doaj +3 more sources
Anomalous surface brightness fluctuations in NGC 4489 [PDF]
Astronomy & Astrophysics, 2001 Anomalously high K-band surface brightness fluctuations (SBF) have been reported in NGC 4489 by Pahre & Mould (1994), Jensen et al. (1996) and Jensen et al. (1998). However, these conclusions were uncertain because of relatively low signal-to-noise data. New high signal-to-noise data for NGC 4489 have been obtained at the NOAO/KPNO 2.1m and the ESO/
S. Mei, David R. Silva, Peter J. Quinn
openalex +5 more sources
The Infrared Surface Brightness Fluctuation Hubble Constant [PDF]
The Astrophysical Journal, 2001 We measured infrared surface brightness fluctuation (SBF) distances to an isotropically-distributed sample of 16 distant galaxies with redshifts reaching 10,000 km/s using the near-IR camera and multi-object spectrometer (NICMOS) on the Hubble Space Telescope (HST).
Joseph B. Jensen +7 more
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Surface Brightness Fluctuations and the Stellar Population in Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 1995 The Surface Brightness Fluctuation (SBF) method introduced by Tonry & Schneider (1988) is known as a distance indicator. However, we focus on another aspect. Our aim is to obtain new information on the stellar population that constitutes an elliptical galaxy by comparing radial gradients in SBF magnitudes with traditional broad-band colours.
Marianne Sodemann, B. Thomsen
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Distance Measurements and Stellar Population Properties via Surface Brightness Fluctuations [PDF]
Publications of the Astronomical Society of Australia, 2012 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.
Fritz, Alexander
core +4 more sources
Surface Brightness Fluctuations as Stellar Population Indicators [PDF]
AIP Conference Proceedings, 2009 8 pages, Invited review presented at "Probing Stellar Populations out to the Distant Universe," September 2008, Cefalu ...
John P. Blakeslee +7 more
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Surface Brightness Fluctuations: a theoretical point of view
, 2002 We present new theoretical evaluations of optical and near-IR Surface Brightness Fluctuations (SBF) magnitudes for single-burst stellar populations in the age range t=5-15 Gyr and metallicity from $Z_{\sun}/200$ to $2Z_{\sun}$. Our theoretical predictions can be successfully used to derive reliable distance evaluations. They also appear to be a new and
Michele Cantiello +3 more
openalex +5 more sources