Results 41 to 50 of about 30,632 (275)
The Hubble Constant from Infrared Surface Brightness Fluctuation Distances*
The 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 +3 more sources
Distant Galaxy Clusters Identified From Optical Background Fluctuations [PDF]
, 1996 We present the first high redshift (0.3 < z < 1.1) galaxy clusters found by systematically identifying optical low surface brightness fluctuations in the background sky.
Dalcanton, Julianne J. +3 more
core +3 more sources
Surface Brightness Fluctuations: A Case for Extremely Large Telescopes [PDF]
, 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 +4 more sources
The surface brightness fluctuations and globular cluster populations of M87 and its companions [PDF]
The Astrophysical Journal, 1997 Using the surface brightness fluctuations in HST WFPC-2 images, we determine that M87, NGC 4486B, and NGC 4478 are all at a distance of ~16 Mpc, while NGC 4476 lies in the background at ~21 Mpc. We also examine the globular clusters of M87 using archived HST fields.
Eric H. Neilsen +2 more
openaire +6 more sources
应用气象学报Based on FY-4A geostationary satellite multi-channel data, mesoscale convective systems (MCSs) during three downhill processes of convection strengthening (1 July 2021, 12 June 2022 and 4 August 2022) in Beijing are identified by temperature threshold ...
Yang Yiya +5 more
doaj +1 more source
, 2011 We investigate the levels of small scale structure in surface brightness images of the core of the X-ray bright cool-core galaxy cluster AWM 7. After subtraction of a model of the smooth cluster emission, we find a number of approximately radial surface ...
A. C. Fabian +47 more
core +1 more source
Quantifying protein densities on cell membranes using super-resolution optical fluctuation imaging [PDF]
, 2017 Surface molecules, distributed in diverse patterns and clusters on cell membranes, influence vital functions of living cells. It is therefore important to understand their molecular surface organisation under different physiological and pathological ...
Benda, Aleš +9 more
core +3 more sources
FEBS Letters, EarlyView.Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile +8 more
wiley +1 more source
, 2008 Our previous analysis indicates that small-scale fluctuations in the intracluster medium (ICM) from cosmological hydrodynamic simulations follow the lognormal distribution.
Cavaliere A. +9 more
core +1 more source
A Suzaku Study of Ejecta Structure and Origin of Hard X-ray Emission in the Supernova Remnant G156.2+5.7 [PDF]
, 2012 We report an X-ray study of the evolved Galactic supernova remnant (SNR) G156.2+5.7 based on six pointing observations with Suzaku. The remnant's large extent (100$\arcmin$ in diameter) allows us to investigate its radial structure in the northwestern ...
Katsuda, Satoru +5 more
core +3 more sources