Astronomy Research Papers

Measurement and Statistics.

Geography, physics, and chemistry

Network Analysis and Political Science

Political science is fascinated with networks. This fascination builds on networks' descriptive appeal, and descriptions of networks play a prominent role in recent forays into network analysis. For some time, quantitative research has incl...

Influence of Non - Condensable Gases on the Processes of Heat and Mass Transfer during Film Condensation of Steam in Heat Exchangers

The aim of the article is a quantitative assessment of the influence of non-condensable gases on the intensity of heat and mass transfer processes during film condensation of steam in the specific conditions for heat exchanger. The task is ...

Explainable machine learning in materials science

Abstract Machine learning models are increasingly used in materials studies because of their exceptional accuracy. However, the most accurate machine learning models are usually difficult to explain. Remedies to this problem lie in explaina...

First principles phonon calculations in materials science

Phonon plays essential roles in dynamical behaviors and thermal properties, which are central topics in fundamental issues of materials science. The importance of first principles phonon calculations cannot be overly emphasized. Phonopy is ...

Materials Science and Engineering

The science-based stockpile stewardship program emphasizes a better understanding of how complex components function through advanced computer calculations. Many of the problem areas are in the behavior of materials making up the equipment....

Big data and machine learning for materials science

Herein, we review aspects of leading-edge research and innovation in materials science that exploit big data and machine learning (ML), two computer science concepts that combine to yield computational intelligence. ML can accelerate the so...

Nature Nanotechnology

Nanotechnology

Nanotechnology is concerned with manufacturing to dimensions or tolerances in the range 0.1-100 nm. It plays a key role in many areas including materials processing, mechanical engineering, optics and electronics. Technologies for manipulat...

Los nevados del Aconquija como sitio de frontera y espacio de observación lunar, Tucumán, noroeste de Argentina

Se presentan los aspectos sociales vinculados al concepto de frontera, el ushnu y la observación lunar en el sitio inca de La Ciudacita, provincia de Tucumán, noroeste de Argentina. El análisis se centra en la posibilidad de observar el lun...

Making Preliminary GRBs Real-Time Astronomical Reports

We present a standalone software tool which makes reports for analysis and evaluation of GRBs. Recently, analysis and evaluation of GRBs were done without help of semiautomated tools or routines; so the time elapsed from the detection until...

Radiation-Driven Stellar Eruptions

Very massive stars occasionally expel material in colossal eruptions, driven by continuum radiation pressure rather than blast waves. Some of them rival supernovae in total radiative output, and the mass loss is crucial for subsequent evolu...

HIP 65426 is a High-frequency Delta Scuti Pulsator in Plausible Spin–Orbit Alignment with its Directly Imaged Exoplanet

HIP 65426 hosts a young giant planet that has become the first exoplanet directly imaged with JWST. Using time-series photometry from the Transiting Exoplanet Survey Satellite (TESS), we classify HIP 65426 as a high-frequency δ Scuti pulsat...

The Be star o Cas is indeed the primary of a triple system

Analysis of radial velocities of two narrow absorption components in the Mg II 4481 Å line demonstrated that the secondary of the Be star o Cas is indeed a close binary system composed of two B7 stars orbiting each other with a period of ...

Cross-correlation transmission spectroscopy of ultra-hot Jupiters WASP-189b, HAT-P-57b, KELT-17b, and KELT-21b with GIANO-B

Since the discovery of the first exoplanet, significant efforts have been made to characterise their atmospheres. Ultra-hot Jupiters (UHJs) are of particular interest due to their extended and hot atmospheres. Although previous studies have...

Constraining young massive cluster properties with radio-continuum observations: The Arches cluster

Context. The Arches cluster, located in the Galactic Centre (GC) is one of the best astrophysical laboratories to study the properties of massive stars and young massive clusters (YMCs). However, despite having been observed for decades at ...

The magnetic fields in Be stars are stronger than previously suggested

Context. Recent observational studies suggest that Be stars most likely are formed through the process of mass transfer in binary systems. In view of the wide consensus that the origin of the magnetic field in stars with radiative envelopes...

Particle astrophysics with high energy neutrinos

High-Energy Neutrino Astrophysics

▪ Abstract High-energy (>100 MeV) neutrino astrophysics enters an era of opportunity and discovery as the sensitivity of detectors approaches astrophysically relevant flux levels. We review the major challenges for this emerging field, amon...