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In this paper, I present first results of a recent deep multi-wavelength study of the Great Nebula in Carina. The Carina Nebula contains some of the most massive and luminous stars in our Galaxy and is an ideal site to study in detail the physics of violent massive star formation and the...
Star formation happens in clouds of interstellar gas and dust called “nebulae”. These clouds are mostly molecular hydrogen, and are often referred to as HII regions. The process begins when the cloud is nudged into a spinning motion, perhaps by a shock wave from a nearby supernova explosion...
The basic idea of triggeredstar formationis this: when a massive star is formed, it emits a large amount of ultraviolet radiation and ejects high-speed gas in the form of a stellar wind. This injection of energy heats the gas around the stars and causes it to expand. When massive stars ...
Models for the spectral energy distributions of four stellar objects in the bright compact H alpha nebula Cep B are constructed. With a high probability, three of them are found to be very young stellar objects of evolutionary class 0/I with ages of 10(4)-10(5) years, comparable to the...
The Eagle Nebula is a superb example of the interaction of massive stars with their environment, showcasing both its destructive power and its potential for triggering star formation at the periphery of the remnant molecular cloud. 3 2 The H II Region and the Molecular Cloud Structure ...
When it reaches the end, a tremendous amount of energy is released and it begins to shed its outer layers, the gravity is too weak hold onto them anymore. Once the layers are removed, in the stars place is a fiery core called a planetary nebula. Eventually, the core runs out of fuel...
cloud can collapse under its own gravitational pull. As the cloud collapses the core begins to heat up. This is called a protostar, and what will one day become a star. The end of a star occurs when a star has fused all of its hydrogen and the star collapses and the…show more ...
This breathtaking new image of the Orion Nebula offers astronomers an intimate view of a vast stellar nursery, and helps researchers better understand the phases of star birth and evolution. The ethereal glow of the nebula was captured using the Wide Field Imager on the MPG/ESO 2.2-meter telesc...
A star begins as a collapsing cloud of material composed primarily of hydrogen, along with helium and trace amounts of heavier elements. Once the stellar core is sufficiently dense, some of the hydrogen is steadily converted into helium through the process of nuclear fusion. The remainder of the...