What temperature would interstellar dust have to have to radiate most strongly at 100 micro meter?
Q: At what wavelengths do stars of surface temperates 20 000 K, 10 000 K, and 3000 K have their peak…
A: Given temperatures as below :- Temperature (T) = 20000 K. Temperature (T) = 10000 K. Temperature (T)…
Q: Consider a disk with disk temperature T = T0(r/AU)−1 with T0 = 200K.and surface density given by Σ =…
A: The objective of this question is to find the difference between the orbital speed of the gas at 1…
Q: If interstellar dust makes an RR Lyrae variable star look 7 magnitudes fainter than the star should,…
A:
Q: If a prostellar disk is 260 au in radius and the disk plus the forming star together contain 7 solar…
A:
Q: What would most bright nebulae look like if there were no interstellar dust?
A: A nebula is defined as a large region of interstellar clouds made of dust, hydrogen, helium, and…
Q: What is the orbital speed at the disk's outer edge in kilometers per second if a protostellar disk…
A:
Q: The dust in a molecular cloud has a temperature of about 34 K. At what wavelength (in nm) does it…
A: temperature = T = 34 K wavelength = λmax=?
Q: If a contracting protostar is seven times the radius of the Sun and has a temperature of only 2030…
A: The luminosity (L) of the contracting protostar relative to the sun be defined as, LL⊙=RR⊙2TT⊙4…
Q: A giant molecular cloud is 30 pc in diameter and has a density of 339 hydrogen molecules/cm^3. What…
A: Concept used: Mass is found by multiplying by density and volume of sphere.
Q: Explain why the sky is blue and how that relates to reflection nebulae.
A: Dispersion. Despersion is a phenomena in which when light passes beteen 2 particle it disperses.
Q: You observe a spectral line from an emission nebula at a wavelength of 723 x 10-9 m. If you are…
A:
Q: Interstellar dust is found to be at a temperature of 1000 K. At what wavelength will be the…
A: Interstellar dust is formed from dying stars. During supernova explosions, the outer layer of the…
Q: What factors resist the contraction of a cloud of interstellar matter?
A: Interstellar matter is defined as the space between the stars' systems in the galaxy. It is made…
Q: If a protostellar disk is 210 AU in radius and the disk plus the forming star together contain 4…
A: the orbital speed is, v=GMr one solar mass is 1.989×1030 kg and 1 AU is 1.496×1011 m. thus,…
Q: At the average density of a star-forming molecular cloud, about 900 atoms per cm3, determine how…
A: Given:- M=2 times 1030 kg density=900 atoms/cm3= 1.51 times 10-18 kg/m3 Find radius of the sphere…
Q: Nickel is a material in which the process of O a. magnetization is done easily, but demagnetization…
A: Answer a. magnetization is done easily, but demagnetization is difficult
Q: If interstellar dust makes an RR Lyrae variable star look 5 magnitude fainter than the star should,…
A: Given the magnitude get fainter by 5. Therefore,
Q: Now, rank the same objects by increasing temperature. For spherical objects, use the surface…
A: Intercloud gas: The gases other than intersteller gases present in space are known as intercloud…
Q: If a globular cluster contains 2 million stars and is 28 pc in diameter, what is the average…
A: This problem can be solved by first calculating the average volume reserved for one star and then…
Q: A giant molecular cloud is 30 pc in diameter and has a density of 330 hydrogen molecules/cm^3. What…
A:
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: The dust in a molecular cloud has a temperature of about 50 K. At what wavelength does it emit the…
A: A blackbody is an ideal object that absorbs all the radiation that falls on it. The blackbody then…
Q: What is hydrostatic equilibrium in stars.
A: The interstellar medium is mostly made of hydrogen. When the mass of the interstellar medium becomes…
Q: Consider that the absolute luminosity of the disk of the Milky Way, in the blue band, is L_B=…
A: Given The total luminosity of the galaxy = 2.3×1010 LB Sun The absolute magnitude…
Q: The life cycle of a star in order (rearrange the steps below.) In the nebula, compact pockets of…
A: The correct order of the life of a star is listed below :
Q: An astronomer is observing a binary star that is 15 pc15 pc away. The two stars have an orbital…
A:
Q: At the average density of of a star-forming molecular cloud, about 1180 atoms per cm3, determine how…
A:
Q: Soft iron is a material, in which the process of O a. magnetization and demagnetization is difficult…
A: Here, we have to discuss the property of Soft iron.
Q: Why do two different gasses always have different spectral signatures?
A: Given Why do two different gasses always have different spectral signatures, as following below.
Q: Why are interstellar lines so narrow?
A: Spectral lines are formed due to electrons making transitions between the energy levels inside the…
Q: If a protostellar disk is 240 AU in radius and the disk plus the forming star together contain 9…
A: Given Radius r = 240 AU Mass m = 9 Solar mass Known Values 1 AU = 1.496 x 1011 m 1 solar mass =…
Q: Given a low density cloud of Hydrogen atoms, what happens when the temperature of the cloud is…
A:
Q: describe the characteristics of the various kinds of interstellar gas (HII regions, neutral hydrogen…
A: Star formation is generally more active in the denser, inner part of the Milky Way than in the outer…
Step by step
Solved in 3 steps