Results 251 to 260 of about 5,175,069 (280)

Extreme quasars illuminate the fast lives of the first black holes. [PDF]

Proc Natl Acad Sci U S A
Croswell K.
europepmc   +1 more source

The most energetic transients: Tidal disruptions of high-mass stars. [PDF]

Sci Adv
Hinkle JT, Shappee BJ, Auchettl K, Kochanek CS, Neustadt JMM, Polin A, Strader J, Holoien TW, Huber ME, Tucker MA, Ashall C, de Jaeger T, Desai DD, Do A, Hoogendam WB, Payne AV.   +15 more
europepmc   +1 more source

Revisiting the Surface Brightness Profile of the Stellar Disk with the Statistical Mechanics of the Self-Gravitating System with the Central Body. [PDF]

Entropy (Basel)
Kang DB.
europepmc   +1 more source

Determination of the mass distribution of the first stars from the 21-cm signal. [PDF]

Nat Astron
Gessey-Jones T, Sartorio NS, Bevins HTJ, Fialkov A, Handley WJ, de Lera Acedo E, Mirouh GM, Izzard RG, Barkana R.   +8 more
europepmc   +1 more source

Status of Electromagnetically Accelerating Universe. [PDF]

Entropy (Basel)
Frampton PH.
europepmc   +1 more source

STELLAR-MASS BLACK HOLES

, 2014
This chapter examines stellar-mass black holes. The empirical study of black holes began in the 1960s with the discovery of quasars and the advent of X-ray astronomy. X-ray detectors could detect X-rays coming from a particular direction—as the instrument rotated, the detector scanned the sky.
Charles D. Bailyn
core   +3 more sources

Two stellar-mass black holes in the globular cluster M22

Nature, 2012
Hundreds of stellar-mass black holes probably form in a typical globular star cluster, with all but one predicted to be ejected through dynamical interactions.
Jay Strader, Laura Chomiuk, Anil Seth
exaly   +3 more sources

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Stellar mass black hole optimisation for utility mining

International Journal of Data Analysis Techniques and Strategies, 2019
Major challenges in mining high utility itemsets from the transaction databases requires exponential search space and database-dependent minimum utility threshold. The search space is very large because of the large number of distinct items and size of the database.
Kannimuthu Subramanian, Kandhasamy Premalatha   +1 more
openaire   +1 more source

Mass Measurement of Stellar Black Holes

Theoretical and Natural Science
Black holes, as the most mysterious celestial bodies in the universe, have received limited research from humans. This article reviews the history of observing black holes and present the dynamical method for measuring their mass. Drawing on reported dynamical estimates, I built a dataset of stellar-mass black holes and obtained an average mass of 8 ...
openaire   +1 more source

Stellar Mass Black Hole for Engineering Optimization

2017
In recent years, nature-inspired algorithms have been popular due to the fact that many real-world optimization problems are increasingly large, complex and dynamic. By reasons of the size and complexity of the problems, it is necessary to develop an optimization method whose efficiency is measured by finding the near optimal solution within a ...
Premalatha Kandhasamy, Balamurugan R, Kannimuthu S   +2 more
openaire   +1 more source