UAT 2015 Workshop Planning Telecon 2
During the January 2015 UAT workshop, we will be conducting
observations under Arecibo program A2941.
We will be using the
L-Band Wide (LBW) Receiver
Read the proposal
and then consider the following questions based on it.
In many cases, you can find reasonable (although not scholarly!)
answers on Wikipedia.
Ok, now that you have answered a few questions, read through the proposal
and find your own questions. Add them to the google document and hopefully
someone will answer them for you.
- What is the ΛCMD cosmology?
- What is a baryon? What do we mean by baryon fraction? What do we mean
by the baryon-to-dark matter fraction?
- What is meant by a "halo"?
- What is the Malmquist bias?
- The left panel of Figure 1 in the proposal
shows a color-magnitude diagram.
Its vertical axis is labeled (g-i). What do g and
i refer to? What do we mean by (g-i) and what is that
called in astronomy-speak?
- What is a scaling relation? Give an example of one that has
been derived for ALFALFA galaxies; be sure to include a proper citation
from where you derive your answer to this question.
- What is a bursty star formation history?
- Some galaxies are included in the SDSS photometric survey but not
in the SDSS spectroscopic survey. Why not?
- What is the frequency range covered by the L-Band Wide detector? What wavelengths does this correspond to? Assuming that you were observing the 21-cm line, what range of velocities and redshifts does this correspond to?
- What is meant by ON-OFF position switching? Why is this a useful technique?
Answers will be discussed in the Second Workshop Planning Telecon
Last modified: Sun Nov 23 19:20:32 EST 2014