Results 81 to 90 of about 53,517 (330)

A spectroscopic study of the low redshift dwarf galaxy SDSS J134326.99+431118.7 to calculate star formation rate

open access: yesBibechana, 2021
We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli   +2 more
doaj   +1 more source

The Millennium Galaxy Catalogue: The connection between close pairs and asymmetry; implications for the galaxy merger rate

open access: yes, 2007
We compare the use of galaxy asymmetry and pair proximity for measuring galaxy merger fractions and rates for a volume limited sample of 3184 galaxies with -21 < M(B) -5 log h < -18 mag.
Alister W. Graham   +7 more
core   +1 more source

THE MERGER-DRIVEN EVOLUTION OF MASSIVE GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2010
We explore the rate and impact of galaxy mergers on the massive galaxy population using the amplitude of the two-point correlation function on small scales for M > 5e10 M_sun galaxies from the COSMOS and COMBO-17 surveys. Using a pair fraction derived from the Sloan Digital Sky Survey as a low-redshift benchmark, the large survey area at ...
Robaina, Aday R   +7 more
openaire   +5 more sources

Measuring the Cosmic Web

open access: yesOpen Astronomy, 2011
A quantitative study of the clustering properties of the cosmic web as a function of absolute magnitude and color is presented using the SDSS Data Release 7 galaxy survey. Mark correlations are included in the analysis.
Müller Volker   +2 more
doaj   +1 more source

Counting Black Holes: The Cosmic Stellar Remnant Population and Implications for LIGO

open access: yes, 2017
We present an empirical approach for interpreting gravitational wave signals of binary black hole mergers under the assumption that the underlying black hole population is sourced by remnants of stellar evolution.
Bullock, James S.   +2 more
core   +1 more source

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

Weak-lensing Mass Bias in Merging Galaxy Clusters

open access: yesThe Astrophysical Journal, 2023
Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs from the assumed model profile. In a merging system, the bias is expected
Wonki Lee   +8 more
doaj   +1 more source

An investigation of star formation and dust attenuation in major mergers using ultraviolet and infrared data

open access: yes, 2012
Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation rate, we investigate a local sample of major merger galaxies and a control
Buat, V.   +5 more
core   +3 more sources

THE DRIVING MECHANISM OF STARBURSTS IN GALAXY MERGERS [PDF]

open access: yesThe Astrophysical Journal, 2010
16 pages, 5 figures, submitted to ApJL, revised version after referee ...
Teyssier, R, Chapon, D, Bournaud, F
openaire   +3 more sources

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

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