syllabus
& course
expectations & the official
time
safety,
tardy, classroom computer use, and honesty
Universe/publisher link: register as a student to use the resources
Astronomy
Picture of the Day
the
latest astrophysics discoveries
what's up in the sky
this week
| Monday, January 26 |
January 27 |
January 28 |
January 29 |
January 30 |
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(always done before class) |
chapter
25 (except the last section) on our galaxy, Milky Way, with particular attention to clues to the origin and formation of our galaxy |
chapter
26(1-3) the two scenarios that attempt to explain galactic evolution are 1) bottom-up version, in which stars form first, then group together in star clusters, which in turn group together to form galaxies 2) top-down version, in which the largest structures form first (superclusters of galaxies) which then fragment into clusters of galaxies, then into galaxies, and then into stars, which form last look for clues to which scenario explains the observations about spiral and elliptical galaxies |
pp.
35-36 in the yellow book: have we discovered gravity waves? |
no
classes only faculty have school |
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| things
you should know the answer to before coming to class |
4
"fossils" -- or fossil properties -- from the galaxy's early history? (we already did 1example -- or was it 2 ?? -- in class yesterday) what should they look like? what properties should they have? (if they formed more than 13 BY ago) |
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homework (written assignments to be turned in) |
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EM
wave applet what a gravitational wave does to a mass |
Gravitational-Wave Observatory your tax dollars at work virtual trips to black holes and neutron stars |
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NGC6939 cluster data due |
NGC6939 cluster data due |
suggestions
for final
projects |
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of the week |
Testing
Einstein talk at UNC tonight at 8 pm |
| Monday, January 19 |
January 20 |
January 21 |
January 22 |
January 23 |
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shortened class schedule |
shortened class schedule |
bring a lab
book to class today |
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(always done before class) |
yellow
book, pages 31-32 (or is it 33-34? I dont have a yellow book at home) in any event, it's the two pages entitled "General Relativity: ...." (these 2 examples are like the one in Figure 24-3) then review experimental tests 1 and 3 in section 24-2 (along with figures 24- 4,5, and 7) |
see
yesterday |
finish
chapter 24 |
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| things
you should know the answer to before coming to class |
what
two conclusions can you deduce by using the Principle of Equivalence on the two examples of the yellow book? |
see
yesterday also see new homework sent by email on Tuesday, to be brought to class today |
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homework (written assignments to be turned in) |
using the radial velocity graph on the bottom of page 16 of the yellow book, find the mass of the black hole ... the period of the A0620-00 binary is 7.75 hours; the black hole's companion is a K3.5 V star |
find the value of rm/rs that would allow you to watch the sun's main-sequence lifetime occur over a 30-minute (local) lunch |
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NGC6939
cluster data due next Tuesday |
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of the week |
| Monday, January 12 |
January 13 |
January 14 |
January 15 |
January 16 |
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JIT
(available in moodle) due by 11 am |
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(always done before class) |
review
the parts of chapter 23 that have been assigned for reading (sections 1-4) |
Walker
section 23(6) on motors and generators & p. 471 on magnetic forces on charged particles in magnetic fields |
Walker
section 22(2) & reading from yesterday for those who forgot & Universe 23(5,6,9) |
chapter
24(3, 4, 5, 2) -- in that order -- on black holes |
chapter
24 (1 and 2) |
| things
you should know the answer to before coming to class |
see JIT |
be
able to explain what a motor does and (sort of) how it works be able to explain what a generator does and how it works understand (and have practiced) the right rule to find forces on charged particles |
1) how black holes are produced, and what mass (range) they can have (are there other ways besides the method we have been talking about the past 2 weeks?) 2) how we "detect" black holes (we did some of this 1st trimester) 3) what "parts" does a black hole have? 4) what effects black holes produce in their vicinity |
same questions as in yesterday's slot <------- since we didn't finish |
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homework (written assignments to be turned in) |
calculate the luminosity (in watts) of the Vela pulsar and bring it completed on a separate sheet of paper to hand during class |
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the crab pulsar: on
and off pulsar physics type Ia SN happen in binaries |
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have
you worked on your supernova remnant lab with your partner this weekend? surely, you have!?! |
supernova
remnant lab due today |
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of the week |
videos/talks
from the American Astronomical Society meeting Long Beach |
Methane gas may indicate life on Mars |
| Monday, January 5 |
January 6 |
January 7 |
January 8 |
January 9 |
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review
notes from the last class day before the holiday |
bring lab book
and your computer (latter is optional).... we will be using ds9 in
today's lab |
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(always done before class) |
22(7-8) |
22(9-10) |
23(1,2) |
23(3-4) |
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things you should know the answer to before coming to class |
what is the other way to produce a supernova (beside the core collapse of a massive star)? what is really really important about this supernova type? |
1)
suppose
you discover a "pulsing" radio source (i..e., one that flashes at you
periodically, like a light house) with a very repetitive period (to
within a microsecond or less) what things did you do (or what questions do you ask) to decide whether this source is just some astronomical object or is the first detected signal from an extraterrestrial civilization? bring a list to class! 2) how would you go about finding a neutron star in the sky? what would you look for? we already have agreed to look in supernova remnants.... but what type of spectrum should the star have? how luminous will it be compared to other stars? will it stand out? |
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homework (written assignments to be turned in) |
bring
a list to class of the 3 ways in which supernova 1987A was important in
our understanding of the supernova phenomenon |
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kolena's
supernova
taxonomy |
how
a light
echo works light echo from Supernova 1987A time-lapse light echoes from Supernova 1987A light echo from V838 Mon light echo from Cas A |
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have
you turned in all your lab stuff? (that was not correct or submitted before the holidays)? |
supernova
remnant spectrum lab visit the link within the lab and make a list (partners can make separate lists and see what they have in common) of 3 possible SNR candidates that you AND your partner might study based on the criteria mentioned |
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of the week |
radio signals tied to first
generation of stars |
