Emission from ULXs
After a series of papers on gravitational wave sources, we published results concerning ultra-luminous X-ray sources. In the paper we analyse the anisotropic emission of radiation from these sources and show that the actual population of ultra-luminous X-ray sources differs from the observed one. Particularly, in flux limited surveys, the observed population will be highly biased toward black hole accretors, whereas neutron star accretors dominate volume-limited observations.
The work can be found here https://arxiv.org/abs/1811.08998
10 May 2019, 4:05:38 UTC · Discuss
Another paper on GW170817
Sorry for late notification!
Another research on the famous GW170817 source, which used data obtained from the Universe@Home project, have been published last year. In this study, it was shown that the merger rates of double neutron stars (calculated from one direct observation) stay in contradiction with these inferred from the observations of double pulsars in our Galaxy. The reason behind this tension is the delay time distribution which favours short delays. The study highlights the problem that scientist encounter trying to connect evolutionary predictions and the observations of the first double neutron star merger.
The original paper can be found here:
19 Apr 2019, 5:25:22 UTC · Discuss
Our paper on the famous double neutron star merger
My apologies for letting you know so late! In the previous year a very important paper appeared which partially used results from the Universe@Home project.
An international cooperation led by prof. Belczynski investigated the importance of different evolutionary scenarios leading to a double neutron star merger. The work was motivated by the ground-breaking discovery of GW170817 made by LIGO/Virgo collaboration (see e.g. https://www.ligo.caltech.edu/page/press-release-gw170817). The scenarios included the isolated binary evolution which was exclusively calculated on U@H. The simulations showed that among currently considered formation scenarios this one is the most promising. Such a result may lead to a larger interest put in isolated binary evolution simulations and, consequently, to the results obtained thanks to the cooperation of thousands of U@H volunteers.
The original work can be found for example here: https://arxiv.org/abs/1712.00632
5 Mar 2019, 13:31:56 UTC · Discuss
We got a grant!
As Krzysztof have already said, we got a grant in the Maestro program. It will allow to continue the project for the next few years. We hope that the project will still provide an exceptionally computational power for the science.
The Maestro program of the National Science Centre aims at providing funding for pioneering research. The research should be done by groups led by senior scientists. The projects must result in extending our understanding of physical phenomena and potentially lead to scientific discoveries. It is one of the biggest funding programs of the NSC.
You can read about the scientific goals here
for Polish see
28 Feb 2019, 14:37:24 UTC · Discuss
It looks like we got some funding for our project :)
More info tomorrow (or in next few days) :)
20 Feb 2019, 5:07:18 UTC · Discuss