Binary stars are extremely important for the information that can be obtained from them on stellar <1>. Systems for which the binary nature can be discerned simply by looking at them are known as <2> binaries. If one can observe the period and semi-major axis of the orbit, the <3> of the system can be calculated. However, this can only be accomplished for systems where the period isn't too <4> and the semi-major axis isn't too <5>.
There are several other types of binaries that require identification more subtle evidence to discern their binary nature. Binaries where one member cuts in front of the other along our line of sight are known as <6> binaries. Binaries detected by the periodic doppler shifts in their spectral ines are known as <7>. <8> binaries are detected by wiggles in their proper motion. The combination of high and low temperature absorption lines would indicate a <9> binary.
@ qu.1.1.blank.1=masses, luminositites, temperatures, distances, velocities@ qu.1.1.blank.2=visual, eclipsing, astrometric, spectroscopic, spectrum@ qu.1.1.blank.3=total mass, individual masses, larger mass, smaller mass@ qu.1.1.blank.4=large, small, variable@ qu.1.1.blank.5=small, large, eccentric@ qu.1.1.blank.6=eclipsing, visual, astrometric, spectroscopic, spectrum@ qu.1.1.blank.7=spectroscopic, spectrum, astrometric, eclipsing, visual@ qu.1.1.blank.8=astrometric, eclipsing, visual, spectroscopic, spectrum@ qu.1.1.blank.9=spectrum, astrometric, eclipsing, visual, spectroscopic@ qu.1.1.grader.1=menu@ qu.1.1.grader.2=menu@ qu.1.1.grader.3=menu@ qu.1.1.grader.4=menu@ qu.1.1.grader.5=menu@ qu.1.1.grader.6=menu@ qu.1.1.grader.7=menu@ qu.1.1.grader.8=menu@ qu.1.1.grader.9=menu@ qu.1.topic=fill in blanks@ qu.1.2.mode=Blanks@ qu.1.2.editing=useHTML@ qu.1.2.name=Stellar Parameters3 - Masses@ qu.1.2.question=Binary stars are extremely important for the information that can be obtained from them on stellar <1>. Systems for which the binary nature can be discerned simply by looking at them are known as <2> binaries. If one can observe the period and semi-major axis of the orbit, the <3> of the system can be calculated. However, this can only be accomplished for systems where the semi-major axis isn't too <4> and the period isn't too <5>.
There are several other types of binaries that require identification more subtle evidence to discern their binary nature. <6> binaries are detected by wiggles in their proper motion. Binaries detected by the periodic doppler shifts in their spectral ines are known as <7>. The combination of high and low temperature absorption lines would indicate a <8> binary. Binaries where one member cuts in front of the other along our line of sight are known as <9> binaries.
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