Results 101 to 110 of about 480,960 (375)

Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups

open access: yesThe Astrophysical Journal
At the low-redshift end ( z < 0.05) of the Hubble diagram with Type Ia Supernovae (SNe Ia), the contribution to Hubble residual scatter from peculiar velocities (PVs) is of similar size to that due to the limitations of the standardization of the SN Ia ...
Erik R. Peterson   +11 more
doaj   +1 more source

Early in‐hospital treatment of acute heart failure. Part 2 of the international expert opinion series on AHF management

open access: yesESC Heart Failure, EarlyView.
This state‐of‐the‐art review outlines a practical, evidence‐based framework for early acute heart failure management to address critical gaps in current guidance and improve early treatment outcomes. Key components include early identification of co‐existing conditions, bedside haemodynamic profiling, a structured diagnostic approach incorporating both
Anika S. Naidu   +22 more
wiley   +1 more source

Complex Kinematics of Nebular Gas in Active Galaxies Centered in Cooling X-Ray Atmospheres

open access: yesThe Astrophysical Journal
[O ii ] emission maps obtained with the Keck Cosmic Web Imager are presented for four galaxies centered in cooling X-ray cluster atmospheres. Nebular emission extending over tens of kiloparsecs is found in systems covering a broad range of atmospheric ...
Marie-Joëlle Gingras   +8 more
doaj   +1 more source

Recurrent radio activity in active galactic nuclei

open access: yesEPJ Web of Conferences, 2012
There has been a growing body of persuasive evidence to indicate that AGN activity, powered by mass accretion onto a supermassive black hole, can involve multiple episodes.
Jamrozy M.
doaj   +1 more source

A step towards testing general relativity using weak gravitational lensing and redshift surveys [PDF]

open access: yes, 2009
Using the linear theory of perturbations in General Relativity, we express a set of consistency relations that can be observationally tested with current and future large scale structure surveys.
A. Cooney   +30 more
core   +2 more sources

The Observed Distribution Function of Peculiar Velocities of Galaxies [PDF]

open access: yesThe Astrophysical Journal, 1996
28 pages, gzipped postscript file, including 11 figures and 2 tables; To appear in the Astrophysical Journal, March ...
Raychaudhury, Somak, Saslaw, William C.
openaire   +2 more sources

Integrated trajectories of systolic and diastolic function differentially associate with risk for heart failure with preserved and reduced ejection fraction and proteomic profiles

open access: yesEuropean Journal of Heart Failure, EarlyView.
Graphical overview of derivation and testing of multiparametric trajectories of cardiac function. This study identified six trajectories of LV systolic and diastolic function from mid‐ to late‐life. Predicted trajectory from single echocardiogram identified four trajectories at differential risk for HFpEF and HFrEF.
Anne Marie Reimer Jensen   +8 more
wiley   +1 more source

The Dark Energy Survey Supernova Program: Cosmological Biases from Host Galaxy Mismatch of Type Ia Supernovae

open access: yesThe Astrophysical Journal
Redshift measurements, primarily obtained from host galaxies, are essential for inferring cosmological parameters from type Ia supernovae (SNe Ia). Matching SNe to host galaxies using images is nontrivial, resulting in a subset of SNe with mismatched ...
H. Qu   +60 more
doaj   +1 more source

European Journal of Heart Failure consensus statement. Heart failure pharmacotherapy for patients with heart failure with reduced ejection fraction and concomitant atrial fibrillation: Review of evidence and call to action

open access: yesEuropean Journal of Heart Failure, EarlyView.
Heart failure (HF) and atrial fibrillation (AF) are major global health challenges with rising prevalence and significant morbidity, mortality, and healthcare burden. Despite advances in HF management, AF remains a critical comorbidity that worsens outcomes and requires ad hoc treatment strategies, increasing the risk of non‐adherence and side effects.
Mark Luedde   +24 more
wiley   +1 more source

Biased Estimates of Omega from Comparing Smoothed Predicted Velocity Fields to Unsmoothed Peculiar Velocity Measurements [PDF]

open access: yes, 2000
We show that a regression of unsmoothed peculiar velocity measurements against peculiar velocities predicted from a smoothed galaxy density field leads to a biased estimate of the cosmological density parameter Omega, even when galaxies trace the ...
.   +3 more
core   +2 more sources

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