What is messier 1 crab nebular
Q: Observations of the Crab Nebula taken aver several decades show that gas blobs that are now 100…
A: To explain the correct answer for the given question,
Q: We didn't specifically discuss this in class but the first stars to form from the cosmic microwave…
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Q: Why are metals less abundant in older stars than in younger stars?
A: Answer: The metals which basically are non hydrogen and helium material are produced or created in…
Q: If a prostellar disk is 260 au in radius and the disk plus the forming star together contain 7 solar…
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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: A starburst galaxy produces only 50 new stars per year. (True or false)
A: A starburst galaxy is known for its high rate of star formation in comparison to the other galaxies.…
Q: If you assume that a globular cluster 2 arc minutes in diameter is actually 27 pc in diameter, how…
A: The expression for the distance from small angle formula, Angular diameter206265=linear…
Q: The Hydra super cluster is at a distance of about 800 MParsec. What is the recessional velocity?
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Q: How does a contracting protostar convert gravitational energy into thermal energy?
A: Stars are formed from clouds of gas present in the interstellar medium. Since the temperature is low…
Q: If a standard passenger aircraft can fly at 0.37 km/s (828 mph), how long (in yr) would it take to…
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Q: A spring with k=5 N/m is stretched 0.1 m. A 0.2 kg object is pushing on the spring. If the object is…
A: Height of the object doesn't change so gravitational potential energy would be zero And no thermal…
Q: You observe a spectral line from an emission nebula at a wavelength of 723 x 10-9 m. If you are…
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Q: Neutron Star Accretion Disk. If the accretion disk around a 2.25-solar-mass neutron star has a…
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Q: If you assume that a globular cluster 6 arc minutes in diameter is actually 18 pc In diameter, how…
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Q: If we look at a cluster featruing a lot of ble stars, we know the cluster is young. How do we know…
A: Generally stars that can be seen by the naked eye, tend to be greater in diameter and shine more…
Q: How is the turnoff point on the H-R diagram of a cluster related to the cluster’s age?
A: Given:- The turnoff point on the H-R diagram of a cluster related to the cluster’s age Explain:- How…
Q: classification helped Darwin understand how creatures evolve. How has classification helped you…
A: Our universe contains million number of stars. These stars continuously emit light radiation, heat…
Q: If you assume that a globular cluster 2 arc minutes in diameter is actually 19 pc in diameter, how…
A: Given, a globular disc cluster is 2 arc minutes in diameter. The actual diameter is d = 19 pc let D…
Q: Why must astronomers use infrared telescopes to observe the motions of stars around Sgr A*?
A: There is dust in the interstellar medium made of molecules and elements send out from the surface of…
Q: 1.004 1.002 1.000- 0.998 0.996 0.994 0.992 0.990 10 20 30 40 50 t-2458543 [BJD] From the data,…
A: A: Orbital period of the planet can be estimated from the plot. B: The orbital distance of the…
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: Why are the Hll regions around 0 stars generally larger than those around B stars?
A: HII region is the interstellar region where atomic hydrogen is ionized. It is a cloud of partially…
Q: How do we know andromeda galaxy is moving towards us?
A: Andromeda Galaxy is the closest galaxy to Milky Way at 2.5 million light-years. Unlike other…
Q: What are globular clusters and what did the ones in the Milky Way help us to measure?
A: SPACE AND ASTRONOMY
Q: you assume that a globular cluster 4 arc minutes in diameter is actually 27 pc in diameter, how far…
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Q: It seems that most of the mass in the Milky Way (about 95%) is made of some sort of matter that does…
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Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
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Q: Imagine that you have achieved immortality and you used it to travel outside of the Milky Way (you…
A: If you were to leave the Milky Way and travel at 1/10th of the speed of light, it would take you…
Q: Hotter, more massive stars are virtually absent from globular clusters. What does this tell us?…
A: Globular clusters are clusters of stars, that are nearly symmetrical and round shaped clusters.…
Q: le of our g
A: Given: To explain the sharpley determines the sun and galaxy size as,
Q: Why are interstellar lines so narrow?
A: Spectral lines are formed due to electrons making transitions between the energy levels inside the…
Q: why does the galaxy shown below have so much dust in its disk? How big do you suppose the halo of…
A: A halo is an extended, almost spherical component of a galaxy which extends beyond the main, visible…
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…
Q: A star orbiting Sagittarius A* is orbiting 970 AU from a 4 million MSun object. How fast (in km/s)…
A: The centripetal force is the force that keeps the planet or the star revolving around a central…
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- What are the two possibilities for the final state of a close, massive binary system?ANSWER 4 ONLY THANKSPart A Decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). The star-gas-star cycle will keep the Milky Way looking just as bright in 100 million years as it looks now. This statement does not make sense. The blowouts of gas from the disc will deplete the gas from the disc of the Milky Way in abiut 10 million years This statement makes sense. Disk of the Milky Way consist enough gas to sustain a few billion years of star formation. This statement makes sense. Most of the bright stars of spiral arms have light expentancies significantly greater than 100 million years. This statement does not make sense. The brightest stars of spiral arms of the Milky Way have life expentancies of about 10 million years. Submit Request Answer
- (a) Rank the following components of the interstellar medium in order of the wavelengths at which they are observed, longest wavelength first: clouds of neutral hydrogen, coronal gas, interstellar dust, nebulae. Longest to Shortest? (b) Rank the same material in order of decreasing temperature from hottest to coolest. Hottest to Coolest?If a standard passenger aircraft can fly at 0.26 km/s (582 mph), how long (in yr) would it take to reach the Sun? yr How long (in yr) would it take to reach the galactic center? (Note: 1 pc = 3.1 ✕ 1013 km. The radius of the Sun's orbit around the galactic center is approximately 8,300 pc.) yrSuppose you observe a star orbiting the galactic center at a speed of 1500 km/skm/s in a circular orbit with a radius of 24 light-days. Calculate the mass of the object that the star is orbiting.
- What evidence can you cite that our galaxy has a galactic corona?if a protostellar disk is 260 au in radius and the disk plus the forming star together contain 7 solar masses what is the orbital speed at the outer edge of the disk in km per second. use the circular orbital velocity formulaan introduction on what are supermassive black holes?