Astronomy Ch 5 Crossword
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
 
 
Down: 1)  Star that just started it’s time on the main sequence 3) The path of a star follows on the HR diagram according to theoretical models4)  Waves emitted in the fabric of spacetime that can be detected on earth; happens when black holes collide 6)  Curved space-time alters the paths of light rays, shifting the apparent positions of objects 8)  When the outward force due to fusion cancels out the downward force due to gravity, the star is in balance 9) Advanced nuclear burning through a series of nested shells 10) Fusion of hydrogen into helium in the core of a star11)  The gas and dust ejected in the massive explosion of a supernova 13) Spinning neutron star that emits intense radio waves while rotating15) Cloud of ionized gas leaving the core of a dying star19) The spherical surface of a black hole where the escape velocity equals the speed of light 20) When helium fusion begins in a red giant diffusion rate skyrockets before a new equilibrium is reached22)  Model that describes the universe as created fully formed in the recent past; rests on the appearance of age hypothesis 23) Hydrogen at the center of a star is converted into helium; For hydrogen nuclei are fused into one lighter helium nucleus and the disappearing mass is changed into energy and released24) Star with a mass less than about two solar masses25)  Star remnant so dense its gravitational pull prevents anything from escaping from it, including light 27) The single point that gravity crashes all matter into31) An explosion that occurs when hydrogen fuses at the surface of an accreting white dwarf. Across: 2) A star in its earliest observable phase of evolution5) Gigantic stellar explosion7) Stellar remnant of a dying star12) High core temperatures allow helium to fuse with heavier elements14)  A supernova that occurs when a massive star dies, initiated by the catastrophic collapse of its iron core; most of the star explodes and leaves behind a neutron star or a black hole; Massive Star supernova16)  The multi layered shell process consisting of the hot and dense inner carbon core and its shell of helium, then the massive helium layer surrounded by a shell of hydrogen 17)  A supernova that occurs when an accreting white dwarf reaches the white dwarf limit and ignites runaway carbon fusion; white dwarf supernova 18) A description of the changes that take place in stars as they age21) As more and more matter is added to the protostar, it shrinks due to ever-increasing gravity; Collapse of an object due to gravity26) The hydrogen fusion that continues in a shell around the helium tour once the helium core begins to contract28) The matter and radiation existing between star systems in a galaxy, clumped in the clouds giving birth to stars29) The radius of the event horizon30) Process by which the material falls onto another body32) Disc of matter that forms a round of forming star33)  Very dense start remnant composed entirely of neutrons; the ball of neutrons left behind by a massive star supernova 34) Time it takes a protostar to become a zero age main sequence star
 

 

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