What is the minimum possible mass for a star in solar masses?
According to theoretical calculations, the smallest mass that a true star can have is about 1/12 that of the Sun. By a “true” star, astronomers mean one that becomes hot enough to fuse protons to form helium (as discussed in The Sun: A Nuclear Powerhouse).
What happens to a one solar mass star?
The core will keep on fusing into carbon, but once the helium runs out, the outer layer of the star will drift off as a gaseous shell and change into a Planetary Nebula. After The Protostar starts shining, it changes to a main sequence star.
What is the average solar mass?
Bulk parameters
| Sun | Ratio (Sun/Earth) | |
|---|---|---|
| Mass (1024 kg) | 1,988,500. | 333,000. |
| GM (x 106 km3/s2) | 132,712. | 333,000. |
| Volume (1012 km3) | 1,412,000. | 1,304,000. |
| Volumetric mean radius (km) | 695,700. | 109.2 |
What will a 0.2 solar mass protostar become?
The presence of a rotationally–supported disk is confirmed and significantly more mass may be added to its planet-forming region as well as the protostar itself….A 0.2 solar mass protostar with a Keplerian disk in the very young L1527 IRS system.
| Comments: | Published in Nature |
|---|---|
| DOI : | 10.1038/nature11610 |
What is the main sequence lifetime of a 0.2 solar mass star?
560 billion years
What is the ultimate fate of a protostar with less than 8.0 solar masses?
After the helium flash initiates helium-burning it will move onto the horizontal branch then expand to become an AGB star. This page now explores the fate of stars of 8 solar masses or less. These stars are destined to eject planetary nebulae and end up as white dwarfs.
What happens if the mass of a white dwarf is pushed above 1.4 solar masses?
If an evolved white dwarf component star accretes material from a giant companion it can be pushed over the Chandrasekhar Limit of about 1.4 solar masses. This triggers a massive explosion that most likely destroys the star, ejecting large amounts of radioactive nickel. The nickel decays into cobalt and iron.
Which is the final stage of a high mass star whose mass is between 1.4 and 3 solar masses?
A massive star will undergo a supernova explosion. If the remnant of the explosion is 1.4 to about 3 times as massive as our Sun, it will become a neutron star. The core of a massive star that has more than roughly 3 times the mass of our Sun after the explosion will do something quite different.
What do low mass and high mass stars have in common?
Low mass stars and high mass stars share similarities and differences. One of the similarities is they both start the same way, with a huge collection of gases, primarily hydrogen and helium. Another similarity would be the way they generate their energy, through a process known as nuclear fusion.
What are two possible fates of stars larger than 8 solar masses?
Stars born larger than 8 solar masses usually retain enough mass to undergo core collapse, with the resulting shock wave producing a Type Ib supernova (spectra without Hydrogen or Silicon lines, with Helium lines), a Type Ic supernova (without Hydrogen or Helium or Silicon lines) or a Type II supernova (with Hydrogen …
What are the three possible end stages for stars?
What Are the Final Stages in the Life of a Star Similar in Size to the Sun?
- Star Formation and Main Sequence. Stars are born from intergalactic dust.
- The Red Giant Phase.
- The Second Red Giant Phase.
- The White Dwarf Phase.
What is the end stage of a solar mass star?
The final stage of this kind of low-mass star is typically a ball not much larger than Earth but with a density perhaps 50,000 times that of water. The Sun is destined to perish as a white dwarf. But, before that happens, it will evolve into a red giant, engulfing Mercury and Venus in the process.