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What is the temperature of a protostar?
the color of the protostar is red
When the pressure and temperature of a nebula increases what is formed?
When the pressure and temperature of a nebula increase, it can lead to the formation of protostars. As gravity causes the nebula to contract and heat up, eventually nuclear fusion can begin at the core of the protostar, leading to the formation of a new star.
What are protostar?
A protostar is an early stage in the formation of a star, occurring after a cloud of gas and dust collapses under its own gravity. During this phase, the material accumulates in a dense core, and the temperature and pressure increase, eventually leading to nuclear fusion. Protostars are typically surrounded by a rotating disk of material, which can contribute to the formation of planets. This phase can last from thousands to millions of years before the protostar becomes a main-sequence star.
Explain why a protostar heats up internally as its gravitationally contracts?
As a protostar contracts under gravity, its gravitational potential energy is converted into kinetic energy, increasing the speed and temperature of the particles. This increase in kinetic energy results in collisions that generate heat. The protostar continues to contract and heat up until internal pressures and temperatures are enough to initiate nuclear fusion and establish equilibrium between inward gravitational forces and outward radiation pressure.
What must happen before a protostar will glow?
Before a protostar can start glowing, it must finish collecting enough gas and dust to trigger nuclear fusion in its core. This process requires the protostar to reach a temperature and pressure high enough for hydrogen atoms to fuse together, releasing energy as light and heat.
What happens to the surface temperature and luminosity when gravity first assembles a protostar from a collapsing cloud?
As gravity collapses the cloud to form a protostar, the temperature and luminosity both increase. The increase in temperature is due to the compression of material, causing the protostar to heat up as energy is released. The increase in luminosity is a result of the protostar radiating this energy.
How are temperature and density affected when a protostar begins to collapse?
Both will increase.
Why does temperature increase more rapidly in a more massive protostar than in a less masive protostar?
because the jews said so
What is the temperature of a protostar?
the color of the protostar is red
What is the process by which a protostar is heated up to initiate nuclear fusion and become a star?
A protostar is heated up by gravitational forces causing it to contract and increase in temperature. Once the core reaches a high enough temperature and pressure, nuclear fusion reactions begin, releasing energy and making the protostar shine as a star.
Can the temperature inside a protostar increase due to particle collisions?
Yes, the temperature inside a protostar can increase due to particle collisions. As the protostar forms, gravitational forces cause gas and dust to collapse, leading to increased density and pressure. This compression raises the temperature, and as particles collide with greater frequency and energy, the thermal energy of the system increases. Once the core temperature becomes sufficiently high, nuclear fusion can begin, marking the transition to a main-sequence star.
When the pressure and temperature of a nebula increases what is formed?
When the pressure and temperature of a nebula increase, it can lead to the formation of protostars. As gravity causes the nebula to contract and heat up, eventually nuclear fusion can begin at the core of the protostar, leading to the formation of a new star.
What are protostar?
A protostar is an early stage in the formation of a star, occurring after a cloud of gas and dust collapses under its own gravity. During this phase, the material accumulates in a dense core, and the temperature and pressure increase, eventually leading to nuclear fusion. Protostars are typically surrounded by a rotating disk of material, which can contribute to the formation of planets. This phase can last from thousands to millions of years before the protostar becomes a main-sequence star.
If the dust cocoon around a protostar emits radiation most strongly at a wavelength of 30 microns what is the temperature of the dust?
The temperature of the dust in the dust cocoon around a protostar can be estimated using Wien's displacement law. At a peak wavelength of 30 microns, the temperature is approximately 100 K.
What happens after a nebula contracts and its temperature increases to 10million K?
After a nebula contracts and its temperature increases to 10 million K, it can start nuclear fusion in its core, becoming a protostar. The increase in temperature and pressure triggers the fusion of hydrogen atoms into helium atoms, releasing energy in the form of light and heat. The protostar will continue to evolve and eventually become a full-fledged star.
How does a protostar compress?
A protostar compresses primarily due to the gravitational attraction of its accumulating mass from the surrounding molecular cloud. As material falls inward, it gains kinetic energy, which increases the temperature and pressure at the core. This process continues until the conditions are sufficient for nuclear fusion to ignite, marking the transition from a protostar to a main-sequence star. The ongoing gravitational collapse is balanced by thermal pressure from the rising temperature, creating a dynamic equilibrium within the protostar.
Explain why a protostar heats up internally as its gravitationally contracts?
As a protostar contracts under gravity, its gravitational potential energy is converted into kinetic energy, increasing the speed and temperature of the particles. This increase in kinetic energy results in collisions that generate heat. The protostar continues to contract and heat up until internal pressures and temperatures are enough to initiate nuclear fusion and establish equilibrium between inward gravitational forces and outward radiation pressure.
