Editing Instrumentation

Questions in this category have been asked by PJ,MT

* What do you know about WMAP?
* What spacecraft have gone up recently? 
* What's the latest, coolest instrumentation?

* what do you know about HST?
* why do we build large telescopes on the ground, if HST has a much better resolution with just 2.3m?

* If we observed a neutron star in LMC from a X-ray telescope, are we able to use a optical telescope to find out if it has a optical companion? 
** How many stars in LMC?
** What's the angular resolution for a X-ray telescope (some early X-ray telescope before Chandra)?
** What's the angular resolution for a typical optical telescope?
** In the field we observed the neutron star, how many stars we would observed in optical?


* What's the typical spectral resolution for a optical telescope?
* What distances can we get to using parallax measurements?
* What is the photometric precision that can be achieved from the ground? What limits the attainable photometric precision?

* At optical wavelengths, what's the typical limit to the effective telescope size set by atmospheric seeing? (RS)
* What is the seeing at Magellan on a good night? (RS)
* What is the difference between atmospheric effects in optical and radio astronomy? (RS)

* How was the frequency band of MWA chosen?  (I'm in MWA; other experimentalists could get an analogous question).  (RS)

[[Astrophysics]]
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 * How was the frequency band of MWA chosen?  (I'm in MWA; other experimentalists could get an analogous question).  (RS)
-* What are the following and to what sorts (read: wavelengths) of astronomers care about them? (RS)
-** Adaptive Optics
-*** How does complexity of the AO system scale with aperture size?
-*** What is the characteristic size of turbulent cells?
-** Closure phase
-*** What are measurements int he UV plane called?
-** Bolometer
-** CCD
-*** How do X-ray and optical astronomers use CCDs differently?
-** Grazing incidence optics?
-** Downmixing
 [[Astrophysics]]