What is a supernova explosion? What is stellar astrophysics? What is thermonuclear astrophysics? What is theoretical astrophysics? What is the main difference between cosmology and astronomy? What are the odds of a second Big Bang? If so, when will it happen?
What constellation is the star Vega in? Stars that are much larger than the sun are called what? What constellation is the sun in? What is another name for the star Polaris? What constellation is Betelgeuse in? What is stellar astrophysics?
Astrophysics is a branch of space science that applies the laws of physics and chemistry to seek to understand the universe and our place in it.
This mission, launched by ESA in 1989, measured the positions and parallaxes as well as proper motions (the motion of a star on the sky observed over the years that is not caused by the parallax but reflects the actual movement of the star in space), for nearly 120,000 stars. The spa...
(the selection is essentially that of the ACS Survey by Sarajedini et al.2007). On the other hand, these are also those GCs for which more precise data can be obtained. A similar bias can of course be present in case spectroscopy is used to define the populations fractions. It would ...
AstrophysicsWe have investigated the properties of a bright K-band selected sample of early-type galaxies in the Hubble Deep Field, as representative of the field galaxy population. This dataset is unique as for the morphological information on faint high-z sources, and for complete photometric ...
arXiv: Solar and Stellar Astrophysics Oct 2016 1被引用 0笔记 共2个版本 开学季特惠,9月3日-11月30日,专业版用户每周AI豆3倍膨胀,快来领取吧! 摘要原文 White dwarfs with log g lower than 7.0 are called Extremely Low Mass white dwarfs (ELMs). They were first found as companions to pulsars,...
Astrophysics - Solar and Stellar AstrophysicsWhen a planet falls onto the surface of its host star, the added high-metallicity material does not remain in the surface layers, as often assumed, but is diluted into the interior through fingering (thermohaline) convection. Until now, however, the ...
What is an Astronomer? An astronomer studies celestial objects and phenomena in the universe. They explore and investigate various aspects of the cosmos, including stars, planets, galaxies, asteroids, comets, and other celestial bodies. Astronomers seek to understand the nature, composition, behavior,...
What is planetary astronomy? What is AU in astronomy? What is the asterism of Cassiopeia? Which famous asterism can you locate in our circumpolar constellations? What is stellar astrophysics? What is planetary astrophysics? What is non-optical astronomy?