Generally speaking, a low-mass star ends up as a white dwarf while a high-mass explodes.  Why/How does the amount of mass determine the star's fate?

Q: Why does a type Ia supernova explode? in two sentences.

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Q: A supernova remnant is now 3.65 pc in radius and is expanding at 4,850 km/s. Approximately how many…

A: Given, Radius of remnant of supernova = 3.65 pc = 1.116×1014km Rate of expanding = 4850 km/s

Q: What is the heaviest element likely to be produced in fusion processes in stars?

A: iron is the heaviest element stars can make.

Q: Describe the evolution of a very low mass start a red dwarf, birth to death

A: Answer Low mass stars in their dating stages shed their outer layers transfer most of their mass…

Q: The Orion Nebula is a gas-rich region in which stars are being born. The nebula is at a distance of…

A: Let us first convert the given distance (D) between nebula and earth from light year to parsecs :…

Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a…

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Q: At the end of its life, a star with a mass 7.8 times the Sun's mass is expected to collapse,…

A: Given,  Mass of star m = 7.8 x 1.99 x 1030 Kg Mass of neutron mn = 1.67 x 10-27 Kg

Q: If the two stars orbit in a such a way that the big star is 4 AU from the center of the mass and the…

A: Given:distance of larger star from COM, ra = 4 AUdistance of smaller star from COM, rb = 12 AUtotal…

Q: Pls help ASAP. Pls show all work.

A: Given context: Life cycle of Low mass star: A low mass star life starts from a "Zero-Age Main…

Q: Why do you expect neutron stars to have a more powerful magnetic field than a white dwarf?

A: A neutron star consists of ions along with neutrons which are responsible for radiation in the form…

Q: Given the density of a pulsar, an extremely dense rotating star made of neutrons, is about 1011…

A: The density of a material defines how closely spaced the material has been packed. If the material…

Q: What stops the production of energy in the evolution of a high mass star?

A: Required: We need to find what stops the production of energy in the evolution of a high mass star.…

Q: A neutron star has a radius of 10 km and a mass of 1.4 Solar masses, what is its density and how…

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Q: If a contracting protostar is 0.5 times as luminous as the Sun and has a temperature of only 1,500…

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Q: When a mass is transferred through the inner Lagrangian point in a binary system toward a white…

A: Option A is correct answer

Q: Assume a neutron star has a mass of about 1.2 times the mass of the Sun and a radius of 7…

A: Given , massm of neutron star=1.2 x mass of Sun .                         =1.2 x 1.989x1030 kg…

Q: Why is it, that a star which uses up the hydrogen in its core, swells to enormous size and changes…

A: Required : Why does a star which uses up the hydrogen swells to enormous size and changes color.

Q: Why is iron significant to understanding how a supernova occurs? A. Iron is the heaviest of all…

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Q: What would a dead star of 1.1 solar masses be

A: White dwarfs are remnants of dead stars.  White dwarfs are very dense and the mass of a white dwarf…

Q: 50,000 20,000 Surface Temperature (C) Would the surface temperature of the stars classified as white…

A: Surface temperature of white dwarfs is around 20000K And for giant it is 2500 to 4000K

Q: mass

A: The evolution is affected by mass exchange in the binary. The higher mass  Star use to be the lower…

Q: A certain giant molecular cloud has a mass of 9.50 x 1035 kg, and 2.00 percent of its mass is…

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Q: Given two stars in a binary star a total distance of 16 AU apart and an orbital period of 4 years…

A: Two Masses in the universe attract each other by a gravitational force. This force is directly…

Q: Chart the evolutionary process of a high mass star on the H–R diagram from ZAMS to death.

A: Required to draw: The evolution of high mass stars from Zero Age Main Sequence (ZAMS) to Death: We…

Q: Indicate whether the following are properties of Type Ia or Type II supernovae. (Select 1-Type Ia,…

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Q: For a white dwarf to become a nova it is necessary for it to A. become a black hole. B. have begun…

A: A white dwarf in a close binary system will explode as a supernova.

Q: The white dwarf that remains when our Sun dies will be mostly made of A. helium. B. carbon. C.…

A: Step1: Overview   The white dwarf that remains when the sun dies will be mostly made of carbon .

Q: If a contracting protostar is two times the radius of the Sun and has a temperature of only 1890 K,…

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Q: Why does lower mass star live longer that a higher mass star

A: Lower mass star is those stars which have more number of a hydrogen atom in themselves as compared…

Q: Why are Cepheid variables important? O Cepheids variables are pulsating stars whose pulsation…

A: Cepheid stars: These kinds of stars have the property to compress and expand within a short time…

Q: What determine whether a star becomes a red giant, a white dwarf a neutron star or a black hole?

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Q: Why does a type II supernova explode? in two sentences.

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Q: A Type Ia Supernova is an example of a:

A: A type Ia-supernova is an example of a standard candle. supernova is the result of a blast into the…

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.