white dwarf造句
1) One such state is called a white dwarf.
2) A white dwarf is supported by the exclusion principle repulsion between the electrons in its matter.
3) We observe a large number of these white dwarf stars.
4) You could pack a ton of White Dwarf material into an eggcup.
5) That is about the size of a typical white dwarf, the remnant left behind after the death of a normal star.
6) Eight different white dwarf systems were examined.
7) It is then referred to as a White Dwarf.
8) The white dwarf star at the center of this planetary nebula may be accompanied by a second-generation world,[http:///white dwarf.html] formed from the debris of the dying star's original planets.
9) “A white dwarf is like a smoking cinder from a burnt-out fire, ” Williams said.
10) The researchers suggest that there are many white dwarf stars throughout this halo.
11) A white dwarf star pulsates or quakes as waves of energy travel through it.
12) It may be the remains of a carbon-rich white dwarf star.
13) A white dwarf is the inert remnant of what used to be a sunlike star.
14) "The sun will one day become a white dwarf star, which is why we're interested in knowing more about them and what happens to any planets the original star might have had, " Provencal notes.
15) New material from white dwarf would quickly replenish the blown - apart disk, Strohmayer says.
16) Theory predicts that a white dwarf star will explode when infalling matter from a companion star increases the mass of the white dwarf beyond a critical mass limit, known as the Chandrasekhar limit.
17) This leads the researchers to suspect that a white dwarf star strayed too close to the intermediate-mass black hole and was ripped apart by tidal forces.
18) The primary target is a white dwarf star known as GD358 in the constellation Hercules.
19) Apparently a nova is a close binary system, made up of a cool, normal star and a White Dwarf.
20) Most scientists agree a Type 1a supernova occurs when a white dwarf star -- a collapsed remnant of an elderly star -- exceeds its weight limit, becomes unstable and explodes.
21) A planetlike body 4,000 light-years away may be the compacted remains of a white dwarf star that is now mostly diamond.
22) It's about as massive as Jupiter, but much more compact. It may be the remains of a carbon-rich white dwarf star.
23) Meanwhile, the sunlike star aged in the normal way, eventually swelling, blowing off its outer layers and collapsing to the white hot ember known as a white dwarf star.
24) The nova phenomenon generally occurs in a binary system that has as one member a very hot white dwarf.
25) Then It'shrinks down into a skeleton of its former selfa white dwarf.
26) It also gives a general picture of their origin in the interplanetary dust of gas, their stable evolution in the stage of main-sequence and their end with White Dwarf, Neution Star and Black Hole.
27) Except for an anomalously high surface abundance of nitrogen, the white dwarf should appear unchanged.
28) Data from the Chandra observation show that the central ten-million-degree Celsius cloud is the remains of a supernova explosion that destroyed a white dwarf star.
29) The binary system of a giant star and hot white dwarf star orbit each other about once every 120 years.
30) Every 20 years or so, the red giant star dumps enough hydrogen gas onto its companion white dwarf star to set off a brilliant thermonuclear explosion on the white dwarf's surface.
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