Results 101 to 110 of about 52,179 (329)

On the Progenitor of Binary Neutron Star Merger GW170817

open access: yesThe Astrophysical Journal Letters, 2017
On 2017 August 17 the merger of two compact objects with masses consistent with two neutron stars was discovered through gravitational-wave (GW170817), gamma-ray (GRB 170817A), and optical (SSS17a/AT 2017gfo) observations.
B. P. Abbott   +1096 more
doaj   +1 more source

FULLY COMPRESSIVE TIDES IN GALAXY MERGERS [PDF]

open access: yesThe Astrophysical Journal, 2009
The disruptive effect of galactic tides is a textbook example of gravitational dynamics. However, depending on the shape of the potential, tides can also become fully compressive. When that is the case, they might trigger or strengthen the formation of galactic substructures (star clusters, tidal dwarf galaxies), instead of destroying them.
Thorsten Naab   +4 more
openaire   +4 more sources

A Physically Motivated Framework to Compare the Merger Timescales of Isolated Low- and High-mass Galaxy Pairs Across Cosmic Time

open access: yesThe Astrophysical Journal
The merger timescales of isolated low-mass pairs (10 ^8 < M _* < 5 × 10 ^9 M _⊙ ) on cosmologically motivated orbits have not yet been studied in detail, though isolated high-mass pairs (5 × 10 ^9 < M _* < 10 ^11 M _⊙ ) have been studied extensively.
Katie Chamberlain   +4 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

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

PHOTOMETRIC DECOMPOSITION OF MERGERS IN DISK GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2014
Several observational studies and numerical simulations suggest that mergers must contribute to the evolution of galaxies; however, the role that they play is not yet fully understood. In this paper we study a sample of 52 double nucleus disk galaxies that are considered as candidates for a minor merger event.
Mar Mezcua   +7 more
openaire   +3 more sources

Baseline characteristics of contemporary trial participants with heart failure and reduced ejection fraction: The VICTOR trial

open access: yesEuropean Journal of Heart Failure, EarlyView.
Baseline characteristics for the vericiguat global study in participants with chronic heart failure (VICTOR) trial. ARNI, angiotensin receptor/neprilysin inhibitor; CRT, cardiac resynchronization therapy; eGFR, estimated glomerular filtration rate; GDMT, guideline‐directed medical therapy; HF, heart failure; HFrEF, heart failure with reduced ejection ...
Clara I. Saldarriaga   +21 more
wiley   +1 more source

Galaxy Mergers Moulding The Cgm

open access: yes, 2017
Galaxies are surrounded by sizeable gas reservoirs which host a significant amount of metals: the circum-galactic medium (CGM). The CGM acts as a mediator between the galaxy and the extra-galactic medium. However, our understanding of how galaxy mergers, a major evolutionary transformation, impact the CGM remains deficient.
Sara L. Ellison   +4 more
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

Hydrogen Peroxide‐Responsive Aminoferrocene Prodrugs

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
To improve sensitivity toward H2O2, the boronic acid pinacol ester in known aminoferrocene‐based anticancer prodrug 13b is replaced with an α‐ketamide fragment to obtain prodrug 2a and some of its N‐alkylated derivatives. 2a exhibits substantially improved cytotoxicity in vitro toward ovarian cancer A2780 and Burkitt's lymphoma BL‐2 cells.
Marlies Körber   +3 more
wiley   +1 more source

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