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7 Cards in this Set
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binary [adj.] if a black hole is a member of a binarystarsystem, matter flowing into it from its companion becomes intensely heated andthenradiates X rays copiously before entering the eventhorizon of the black hole |
something made of or based on two things or parts |
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quasar [n.count.] Various astronomers have speculatedthatlarge volumes of interstellar gas collect and collapse into super massive blackholes atthe centers of quasars and galaxies |
a very bright object in space that is similar to a star and that is very far away from the Earth and gives off powerful radio waves |
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galactic [adj.] the collapse of millions or billions ofsolarmasses of interstellar gas under gravitational force into a large black holewouldaccount for the enormous energy output of quasars andcertain galactic systems |
of or relating to a galaxy and especially the Milky Way galaxy |
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envelope [n.count.] Theblack hole's existence can bestronglyinferred from its energetic effects on an envelope of gas swirling around it atextremely high velocities. |
a layer of something that surrounds something else
- an envelope of gases around the planet |
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primordial [adj.] numerous tinyprimordialblack holes, possibly with a mass equal to that of an asteroid or less, mighthavebeen created during the big bang |
existing from the beginning of time : very ancient |
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annihilate [v.trans.] Ifa proton and an antiproton escape itsgravitationalattraction, they annihilate each other and in so doing generate energy—energythat they in effect drain from the black hole. |
to destroy (something or someone) completely |
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drain [v.trans.] Ifa proton and an antiproton escape itsgravitationalattraction, they annihilate each other and in so doing generate energy—energythat they in effect drain from the black hole. |
to draw off (liquid) gradually or completely |
