In early 2016, Oxford University astrophysicist Steven Balbus was filling in for a colleague, teaching a course on general relativity. Although not an expert in relativity before the course, Balbus felt growing admiration for Albert Einstein’s century-old theory. In February, during the course, Balbus and others around the world heard news out of the Laser Interferometer Gravitational-Wave Obse...

maraghe observatory was built by such engineers as moayiededdin orozi etc. under supervision of khaje nasireddin tousi in 7th century ah. the most significant feature associated with maraghe observatory is the fact that architecture is employed to achieve astronomical purposes in this site. the reason for preferring observatory by astronomers was the fact that these units are superior to wooden...

Obtaining diffraction limited astronomical images using ground-based telescopes and sensors operating at optical wavelengths is currently not possible due to the effects of atmospheric turbulence. Adaptive optics is a mature technology that attempts to minimise the effects of atmospheric turbulence through wavefront detection and optical path correction in real-time. Our work involves the acqui...

We present an overview of best practices for publishing data in astronomy and astrophysics journals. These recommendations are intended as a reference authors to help prepare publish way that will better represent support science results, enable sharing, improve reproducibility, enhance the reusability data. Observance these guidelines also streamline extraction, preservation, integration cross...

Among the many challenges posed by huge data volumes produced new generation of astronomical instruments there is also search for rare and peculiar objects. Unsupervised outlier detection algorithms may provide a viable solution. In this work we compare performances six methods: Local Outlier Factor, Isolation Forest, k-means clustering, measure novelty, both normal convolutional autoencoder. T...