Draft:Original research/Trigonometric-parallax astronomy/Quiz

Trigonometric-parallax astronomy is a lecture about the using higher resolution detectors to measure stellar parallaxes. It is also a lecture as a possible part of the department of radiation astronomy course on the principles of radiation astronomy.

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Quiz
{True or False, Distance measurement by parallax is a special case of the principle of triangulation. + TRUE - FALSE
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{Trigonometric parallax involves which of the following? + parsecs + reciprocal of parallax + arcseconds + apparent changes in position + lines of sight
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{Copernicus's theory provided a strikingly simple explanation for the apparent retrograde motions of the planets—namely as { parallactic (i) } displacements.
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{Radiation phenomena associated with trigonometric parallax are - gamma-ray trigonometric parallax distances < 0.4 kpc - X-ray trigonometric parallax distances good to 2 pc - ultraviolet trigonometric parallax is good to ± 7 pc + visual trigonometric parallax distances good to about 3 kpc + infrared trigonometric parallax with an accuracy of 120 µas + radio trigonometric parallax distances good at least to 1.86 kpc
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{Complete the text: Trigonometric parallax measurements of { radio (i) } pulsars are the reliable { method (i) }.
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{Complete the text: Match up the type of trigonometric parallax with each of the possibilities below: visual parallax - A distribution function of the errors in distance - B VLBA - C Cygnus X-1 - D pulse times of arrival - E ultraviolet trigonometric parallax - F optical annual parallax (HST) - G continuum 'fixed' radio sources J1953+3537 and J1957+3338 { D (i) }. Vela pulsar { G (i) }. skewed due to non-linearity { B (i) }. cloud top height { F (i) }. Sgr B2M and Sgr B2N { C (i) }. PSRs J1744−1134 and J1024−0719 detected at X-ray energies { E (i) } χ Cyg 144 ± 25 pc (Stein 1991) { A (i) }.
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{Complete the text: Match up the trigonometric parallax phenomena with the image: stellar parallax motion - A Very Long Baseline Array - B radio continuum - C Chandra X-ray Observatory spatial resolution HRC-I ~ 0.5 arcsec - D WD 0346+246 has a trigonometric parallax measurement - E Very Large Telescope - F { D (i) }. { A (i) }. { F (i) }. { C (i) }. { E (i) } { B (i) }.
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{Which of the following is not related directly to an astronomical trigonometric parallax associated with Geminga? - optical trigonometric parallax + the Fermi Gamma-ray Space Observatory - measurements of radio pulsars - only available for the nearby pulsars - distance value of 0.25 +0.12 or −0.06 kpc
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{True or False, For larger and trigonometrically less reliable distances, use the Wilson-Bappu magnitudes. - TRUE + FALSE
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{Which of the following is not an astronomical trigonometric parallax or derived from it? - Hipparcos mission (ESA 1997), π = 15.15 ± 3.24 mas - independent observational constraint for DA white dwarfs - parallax distance of 357 +43 or −35 pc + angular diameter comparison - distance estimates - the range of an artificial satellite
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Hypotheses

 * 1) It is possible using X-ray trigonometric parallax to fix the position of the Sun.