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New proton capture reaction rate of copper-57 changes nucleosynthesis paths in Type-I X-ray burst

An international research team recently developed a new copper-57 proton capture reaction rate for the extreme astrophysical environment at neutron star surfaces. The new reaction rate alters some of the most critical nucleosynthesis pathways in Type-I X-ray bursts, according to the researchers. The study...

The formation and evolution of massive binaries may share the same mechanism in Milky Way and Andromeda galaxies

A research team led by Prof. Qian Shengbang and Ph.D. student Li Fuxing from the Chinese Academy of Sciences' Yunnan Observatories discovered that the formation and evolution of massive binaries in the Milky Way and the Andromeda Galaxy (M31) may share the same mechanism....

Exploring the formation of ultra-massive carbon-oxygen white dwarfs

White dwarf stars (WDs) make up the majority of the stellar graveyard. It is widely assumed that WDs will evolve from more than 97 percent of the stars in the universe. These numerous objects are regarded as a powerful tool for comprehending star formation...

Air contamination might increment freezing rain in the northern half of the globe

Freezing rain is a common meteorological calamity in many parts of the world, including tropical locations, throughout the winter and early spring. It forms in the air as supercooled water (below 0 °C) that freezes as soon as it contacts cold surfaces. Freezing rain...

Climate warming will not change greenhouse gas emissions of biocrust in arid sandy areas

Climate change marked by global warming is affecting various ecological processes of the terrestrial ecosystem. How greenhouse gas emissions respond to climate change is directly related to the carbon and nitrogen balance between the atmosphere and terrestrial ecosystem. Scientists from the Northwest Institute of Eco-Environment and Resources of...

Hydroxyl radicals first detected at 2.8 μm wavelength with optical-feedback cavity-enhanced absorption spectroscopy

A research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has recently detected hydroxyl radical (OH) at 2.8 μm wavelength with a distributed feedback diode laser, based on optical-feedback cavity-enhanced absorption...