Results 31 to 40 of about 410,681 (239)

The Hubble Constant from Infrared Surface Brightness Fluctuation Distances* [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract We present a measurement of the Hubble constant H 0 from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with the WFC3/IR on the Hubble Space Telescope (HST).
John P. Blakeslee   +4 more
openaire   +4 more sources

Carnegie Supernova Project I and II: Measurements of H 0 Using Cepheid, Tip of the Red Giant Branch, and Surface Brightness Fluctuation Distance Calibration to Type Ia Supernovae

open access: yesThe Astrophysical Journal
We present an analysis of Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project I and II and extend the Hubble diagram from optical to near-infrared wavelengths ( uBgVriYJH ).
Syed A. Uddin   +46 more
doaj   +2 more sources

New Optical and Near-Infrared Surface Brightness Fluctuation Models. II. Young and Intermediate-Age Stellar Populations [PDF]

open access: bronze, 2005
We present theoretical surface brightness fluctuation (SBF) amplitudes for single-burst stellar populations of young and intermediate age (25 Myr ≤ t ≤ 5 Gyr) and metallicities Z = 0.0003, 0.001, 0.004, 0.008, 0.01, 0.02, and 0.04.
Gabriella Raimondo   +3 more
openalex   +3 more sources

X-ray surface brightness and gas density fluctuations in the Coma cluster [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
published in ...
Churazov, E   +8 more
openaire   +4 more sources

Surface Brightness Fluctuations of Fornax Cluster Galaxies: Calibration of Infrared Surface Brightness Fluctuations and Evidence for Recent Star Formation [PDF]

open access: bronzeThe Astrophysical Journal, 2002
We have measured K-band surface brightness fluctuations (SBFs) of 19 early-type galaxies in the Fornax cluster. Combining our results with published data, we find the absolute SBF magnitude Mbar_K = (-5.84)+(3.6)*[(V-I)-1.15]. The intrinsic cosmic scatter of Mbar_K appears to be larger than that of I-band SBFs.
James R. Graham   +4 more
openaire   +3 more sources

Surface Brightness Fluctuations: a theoretical point of view

open access: green, 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
Cantiello, M.   +3 more
openaire   +5 more sources

Surface Brightness Fluctuations: A Case for Extremely Large Telescopes [PDF]

open access: yes, 2005
3 pages, 2 figures, to appear in the proceedings of the ESO Workshop "Science with Adaptive Optics", eds. W. Brandner & M.
Stefan Hippler   +3 more
openaire   +5 more sources

Testing the surface brightness fluctuation method on dwarf galaxies in the COSMOS field [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT 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 populations in the local Universe, we require effective methods for deriving distance ...
Lauren M Foster   +2 more
openaire   +3 more sources

The ACS Virgo Cluster Survey. IV. Data Reduction Procedures for Surface Brightness Fluctuation Measurements with the Advanced Camera for Surveys [PDF]

open access: bronze, 2005
The Advanced Camera for Surveys (ACS) Virgo Cluster Survey is a large program to image 100 early-type Virgo galaxies using the F475W and F850LP bandpasses of the Wide Field Channel of the ACS instrument on the Hubble Space Telescope (HST). The scientific
S. Mei   +9 more
openalex   +3 more sources

The Distance to the Coma Cluster from Surface Brightness Fluctuations

open access: yesThe 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-based observations of the standard E1 galaxy NGC 3379 in the Leo-I group.
Guy Worthey   +3 more
openaire   +5 more sources

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