Astronomy

Astronomy 10 Chapter 11 1. Both used to be normal stars further the white dwarf ran out of hydrogen, they ar both subjected to gravitative theories. A Neutron star is a tranquil of neutrons, as het at its fold up as the internal of the sun and has a greater magnetic field. 3. Because its density is so high, neutrons spin in the same way that electrons do so must pursue the Pauli Exclusion Principle. 6. A pulsar does not pulse, it emits beams of radiation therapy syndrome that sweep slightly the sky as the neutron star rotates, and astronomers learn pulses when they sweep all over the Earth. 11. Sometimes in double star systems, mass flows into a fiery accretion disk well-nigh the neutron star and causes the emission of x rays. 14. Astronomers have found compacted objects greater than about 3 solar masses. Black great deals and neutron stars at the center of accretion disks can dispatch powerful beams of radiation and gas and such beams have been detected. r isky gamma-ray bursts occur for lengthy than 2 seconds arise during hypernovae, the collapse of considerable stars to form moody holes. Chapter 12 3. They can measure light curves of Cepheid variables in other galaxies in two nearby clusters. 5.

Because the gas and broadcast in the galaxy tends to redden and dim far outdoor(a) objects, the distant stars could not be peckn, so they could only see a abject part of the galaxy. 7. vitrine I Cepheids are state 1 stars with surface abundance similar to the sun. Type II Cepheids are population II stars with less metal determined by visible radiation and size. 9. Dark matter in the halo is de! monstrated by its gravitational effect on a spiral galaxys rotation curve. Without large amounts of mass in the extended halo, the rotational swiftness of the galaxy should decrease at large distance from the astronomical core 14. The center of the Milky appearance Galaxy is label by a radio source, genus Sagittarius A, the motion of stars somewhat the center shows that it must contain slightly 2.6 million solar masses; a super-massive black hole is...If you want to seize a full essay, order it on our website: OrderCustomPaper.com

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