Difference between revisions of "CG4 Bigger Picture and Goals"

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=The punchline=
 
=The punchline=
 
We have to come up with a poster for the Seattle AAS. BUT because the poster can be simple or complex, this goal is a little squishy, perhaps squishier than you might be comfortable with.  What I describe here (and elsewhere on the wiki) is the kind of goal I would give a grad student. But getting through even a part of it (rather than all of it) is still a success!! This may be hard to really internalize, but it's true.  
 
We have to come up with a poster for the Seattle AAS. BUT because the poster can be simple or complex, this goal is a little squishy, perhaps squishier than you might be comfortable with.  What I describe here (and elsewhere on the wiki) is the kind of goal I would give a grad student. But getting through even a part of it (rather than all of it) is still a success!! This may be hard to really internalize, but it's true.  
Line 10: Line 9:
 
Our visit in June (14-16) may seem like it has some deadlines, but in terms of the science, my plan would be to backtrack a little for the first half-day or so (?), to make sure we're all on the same page. So there's really no science deadlines for that.
 
Our visit in June (14-16) may seem like it has some deadlines, but in terms of the science, my plan would be to backtrack a little for the first half-day or so (?), to make sure we're all on the same page. So there's really no science deadlines for that.
  
Operationally, though, June 14 does imply some deadlines. It would be good to know how many people are coming at least a few weeks before y'all show up on my doorstop.  And of course it would be good to make travel reservations early enough to make sure you get good rates.  So I am arbitrarily picking '''May 15''' as a deadline for getting travel logistics (including people logistics) locked down.  Similarly, I'd say make sure you have a functional laptop that you know how to use with as much of the relevant software installed as possible by '''June 7'''.
+
Operationally, though, June 14 does imply some deadlines. It would be good to know how many people are coming at least a few weeks before y'all show up on my doorstep.  And of course it would be good to make travel reservations early enough to make sure you get good rates.  So I am arbitrarily picking '''May 15''' as a deadline for getting travel logistics (including people logistics) locked down.  (see [[CG4 Summer visit]] to consolidate details.) Similarly, I'd say make sure you (and all your students each) have a functional laptop that you know how to use with as much of the relevant software (Spot, Leopard, ds9, APT, a web browser, Excel or spreadsheet program of your choice) installed as possible by '''June 7'''.
  
 +
=Tasks, Schedule, Plan=
  
here are some things that can be done relatively easily remotely, with a handful of telecons, and there are some thing that really need to be done in person.  playing with making 3-color mosaics with software of your choice is something we can do remotely.   
+
There are some things that can be done relatively easily remotely, with a handful of telecons, and there are some thing that really need to be done in person.  Playing with making 3-color mosaics with software of your choice is something we can do remotely.  Learning how to use software like APT is best done in person. Here is what I envision for us for the next several months, including the visit in June, and then the following months.
learning how to use MOPEX or any other photometry package is best done in person. here is what i envisioned for us for the next several months, including the visit in June, and then the following months.
 
  
Monday (3/10) - assuming the rest of you check in with me with "yes, i understand the sample selection and the proposal looks good to me" then i will turn the proposal in to michelle and tom soifer (the director of the ssc).
+
The overall "story arc" of the science can be found on the [[Working with L1688]] page.  
  
big picture for next several months is '''getting comfortable with spitzer data (images and photometry i reduce for you), understanding (low mass) star formation.'''
+
'''NEW''' from [[User:Rebull|Rebull]] 15:51, 17 May 2010 (PDT) : [[Working with CG4+SA101]] -- specific questions for you to use in conjunction with [[Working with L1688]].
  
towards that end, then, the next big step - '''finding archive spitzer images to play with.'''  i know that some of you have "favorite" regions 
+
==Goals between now and June==
that you have played with (at other wavelengths) before, or we can 
 
start on picking lynds clouds that are already in the archive.  some 
 
data will be directly downloadable in final mosaic form from leopard, 
 
and some will require piecing together.  for now, let me do the 
 
piecing together for you, even though that could mean a little bit of 
 
time delay for you to get the images.
 
  
''skills to learn :'' searching using leopard.   downloading and 
+
#Start to get comfortable with low-mass star formation.
unpacking the files. identifying the files you want from the stack of 
+
#Start to get comfortable with searching, reading, interpreting the literature.
files you get.  using software (spot/leopard or ds9 or anything else
+
#Start to play with Spitzer mosaicsMay have to be image other than CG4; depends on my time to make the mosaics!
of your choice) to create 3-color images using at least one spitzer 
+
#*Make 3-color mosaics using Spitzer data and software of your choice. (ds9? Leopard? something else?)
band.  identifying image artifacts.
+
#*Start to explore what the mosaics look like. What is artifact, what is real. What the PSF looks like.
 +
#*Searching the archives for additional images.
  
''big things to notice'' - what is bright in which wavelength?  (bonus 
+
You've already made progress on the first two. We will make more progress on the second over the next few weeks with our journal club plan.
question: why?)
 
  
''pages on the wiki'' - items 1-4 on https://coolwiki.ipac.caltech.edu/index.php/Research_Tools
+
For the 3rd goal, I need to find a done Spitzer mosaic for you to play with. Either I will get the CG4 ones done, or we need to find another region where we can use the pipeline mosaic. It's possible that the lowest energy solution is best -- L1688, as per [[Working with L1688]]. BUT there is something to be said for learning to search the Spitzer Archive all by yourself from scratch.  
  
we can do a leopard/spot class over a telecon (everyone clicking  
+
''Skills to learn :'' reading journal articles. searching using leopard or SHA.  downloading and  
together) or we can just work independently based on the instructions 
+
unpacking the files. identifying the files you want from the stack of files you getusing software (spot/leopard or ds9 or anything else of your choice) to create 3-color images using at least one spitzer band. identifying image artifacts.
on the wiki and then have a telecon to answer questionsup to you  
 
guys.
 
  
between all of those skills and the end of the school year chaos, 
+
''big things to notice'' - what is bright in which wavelength?  (bonus question: why?)  how does resolution matter?
that ought to get us awful close to your visit in June.
 
  
UPDATE on finding images:
+
''pages on the wiki'' - 1, 2, 4, and 5 from [[Working with L1688]], as applied there or to another region.  3 is lower priority.  5 is literature searching, and you've kind of already gotten the important parts for CG4 -- there's a list in the proposal.
  
there are LOTS of other famous objects already in the archive - 
+
==Plan for your visit==
nearly all of the Messier catalog is already done, for example; the 
 
things that are missing are all globular or open clusters (and therefore 
 
pretty boring with spitzer).
 
  
if you want to start by looking at lynds clouds... in order to find 
+
===High-level schedule===
some objects, start with the spreadsheet i created for source 
+
*Sunday night, 6pm - pizza party at Luisa's ... 5 or 5:30 if you want to play with Andrew!
selection before, but look in the part where it says there are 
+
*Monday morning 8:30-12 - lectures
already spitzer data, plus publications listed in simbad.  then look 
+
*Monday afternoon 1:30-5 - software setup. SHA workthrough. Start to work with mosaics.
at the optical images like we did before to see what it looks like in 
+
*Tuesday all day - hands-on work with computers
optical.  (NB: several lynds clouds will ALSO be in famous Messier 
+
*Wednesday morning - JPL tour
star forming regions.)
+
*Wednesday afternoon - wrapup, plan for when you go home
  
 +
===More details===
  
 +
Stuff i want to review during the '''first half-day of your visit'''.  Note lots of vocabulary and skills embedded in this list, not necessarily called out. Note also this is likely to be a lot of lecturing.  I trust that you will be aggressive re: asking questions! 
  
Stuff i want to review during the '''first half-day of your visit'''.  note 
+
'''NEW''' from [[User:Rebull|Rebull]] 15:51, 17 May 2010 (PDT) : [[Working with CG4+SA101]] -- specific questions for you to use in conjunction with [[Working with L1688]].
lots of vocabulary and skills embedded in this list, not necessarily 
 
called out:
 
  
1. basic spitzer operations (how spitzer works, why the cameras do 
 
what they do, and what that means for the images you get, etc.. 
 
beginnings of this on the wiki. https://coolwiki.ipac.caltech.edu/index.php/More_information_on_Spitzer_operations )
 
  
2. basic (low mass) star formation and how we know what we know. 
+
1. basic spitzer operations (how spitzer works, why the cameras do what they do, and what that means for the images you get, etc..  beginnings of this on the wiki.  
(this i think is best done in person because i have images and movies 
 
to show you, and i just can't imagine that this will work easily 
 
except in person.)  color-color and color-magnitude diagrams and SEDs 
 
included here.  there are several wiki pages on low-mass star 
 
formation, which you could read in advance or just wait for me to 
 
show the content to you in ppt form.
 
https://coolwiki.ipac.caltech.edu/index.php/Studying_Young_Stars and  
 
the pages linked from there. note in particular how you tell what is 
 
a cluster member from what is a background object ("finding cluster 
 
members").
 
also see https://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots and
 
https://coolwiki.ipac.caltech.edu/index.php/SED_plots , although that 
 
latter page is pretty skeletal.
 
  
3. basic photometry practical concepts (pretty much all absorbed into  
+
2. basic (low mass) star formation and how we know what we know. we have done some of this already. i kinda want to review it in person to (a) make sure all the students are keeping up with us, and (b) to give you a chance to ask new questions as you re-encounter this stuff.
photometry page on wiki https://coolwiki.ipac.caltech.edu/index.php/Photometry )
+
color-color and color-magnitude diagrams and SEDs included here. several wiki pages on this.
  
'''Later in the visit, depending on what it is you want to do'''.... note  
+
3. basic photometry practical concepts. Introduction to items 6 and 7 from [[Working with L1688]]i need to update the APT wiki page so that we can do this!!
that much of this is much more hands-on than the list above, which is 
 
ncessarily more lecture-based, and i trust that you will be 
 
aggressive re: asking questions.
 
  
4. reviewing stuff from above re: three color images using spitzer  
+
Rest of the visit will be much more hands-onIt'll be up to you all how much of the nitty gritty details you want to get into, or if you just want to take my data reduction and run with it.
data, what is bright in which band and why.  discussion of any 
 
remaining questions from the "things to think about and try" sections 
 
of the wiki pages.
 
  
5. using spitzer photometry **i reduced for you** to explore star 
+
4. Reviewing stuff from above re: three color images using spitzer data, what is bright in which band and whyDiscussion of any remaining questions from the "things to think about and try" sections of the wiki pages.
formation with spitzer.  color-color diagrams and sedswhat they 
 
mean.  comparison to results other studies get elsewhere.
 
  
6. using optical photometry programs (such as maximdl) to do your own 
+
5. Using APT to do photometry, at least enough to get the idea of how it works. it is unlikely that we will all grind through everything together. we will pick some objects to do, do the photometry, compare results, talk about how much work is left to do.
photomery on spitzer data, and what you need to do to make it work  
 
(all on the units page on the wiki  https://coolwiki.ipac.caltech.edu/index.php/Units )
 
  
7. using mopex to make mosaics. overview of what it doesmaking it 
+
6. Bandmerging. Working with large data tablesUsing photometry **i reduced for you** to explore star formation with spitzer. color-color diagrams and seds. what they mean. if we have time, comparison to results other studies get elsewhere. This is basically the rest of [[Working with L1688]] -- items 7, 8, 9, 10, and 11.
work "good enough" for your classes. https://coolwiki.ipac.caltech.edu/index.php/Make_a_simple_mosaic
 
and what i do that might be different for research (not yet on the
 
wiki - there's a placeholder page)
 
  
8. using mopex to get photometryoverview of what it doesmaking  
+
NOW, keep in mind that much of this is NOT trivial. You can do it, I am sure of it, but it is definitely the deep end of the pool, and it will take much more than part of an afternoon to accomplishIt is entirely likely that we will just get to do the beginnings of it, talk about how it should work, and then do lots of the rest remotely later onWe may never get to items 11 or even 10 from [[Working with L1688]]. But we will still have stuff to write up for the posterWith any luck, we can have the poster abstract written before you leave the SSC.
it work "good enough" for your classes. and what i do that might be  
 
different for research (not at all on the wiki yet)
 
  
NOW, keep in mind that 7 and 8 are NOT trivial tasks. you can do it, 
+
==Plan for after you go home==
i am sure of it, but it is definitely the deep end of the pool, and 
+
Finish photometry. Finish analysis. Ask more questions as you absorb the information. Include data from other bands. Experiment with maybe doing similar analysis on other regions.
will take much more than part of an afternoon to accomplish. it is 
 
entirely likely that we will just get to do the beginnings of it, 
 
talk about how it should work, and then do the rest remotely later on.
 

Latest revision as of 03:34, 20 May 2010

The punchline

We have to come up with a poster for the Seattle AAS. BUT because the poster can be simple or complex, this goal is a little squishy, perhaps squishier than you might be comfortable with. What I describe here (and elsewhere on the wiki) is the kind of goal I would give a grad student. But getting through even a part of it (rather than all of it) is still a success!! This may be hard to really internalize, but it's true.

Big deadlines

Really, there are only 2 deadlines.

  • The abstract deadline is usually in the Fall, like October-ish. They will post deadlines and schedules at the AAS not long after they get through the Miami meeting in late May. We have to know at least enough about our results to write an abstract. BUT we already know enough to write our proposal abstract, so we could write a poster abstract right now.
  • Poster needs to be printed before all of us vanish for the holiday break. I will print it here. So, including editing and padding time, probably we need to get the poster done circa Dec 15.

Our visit in June (14-16) may seem like it has some deadlines, but in terms of the science, my plan would be to backtrack a little for the first half-day or so (?), to make sure we're all on the same page. So there's really no science deadlines for that.

Operationally, though, June 14 does imply some deadlines. It would be good to know how many people are coming at least a few weeks before y'all show up on my doorstep. And of course it would be good to make travel reservations early enough to make sure you get good rates. So I am arbitrarily picking May 15 as a deadline for getting travel logistics (including people logistics) locked down. (see CG4 Summer visit to consolidate details.) Similarly, I'd say make sure you (and all your students each) have a functional laptop that you know how to use with as much of the relevant software (Spot, Leopard, ds9, APT, a web browser, Excel or spreadsheet program of your choice) installed as possible by June 7.

Tasks, Schedule, Plan

There are some things that can be done relatively easily remotely, with a handful of telecons, and there are some thing that really need to be done in person. Playing with making 3-color mosaics with software of your choice is something we can do remotely. Learning how to use software like APT is best done in person. Here is what I envision for us for the next several months, including the visit in June, and then the following months.

The overall "story arc" of the science can be found on the Working with L1688 page.

NEW from Rebull 15:51, 17 May 2010 (PDT) : Working with CG4+SA101 -- specific questions for you to use in conjunction with Working with L1688.

Goals between now and June

  1. Start to get comfortable with low-mass star formation.
  2. Start to get comfortable with searching, reading, interpreting the literature.
  3. Start to play with Spitzer mosaics. May have to be image other than CG4; depends on my time to make the mosaics!
    • Make 3-color mosaics using Spitzer data and software of your choice. (ds9? Leopard? something else?)
    • Start to explore what the mosaics look like. What is artifact, what is real. What the PSF looks like.
    • Searching the archives for additional images.

You've already made progress on the first two. We will make more progress on the second over the next few weeks with our journal club plan.

For the 3rd goal, I need to find a done Spitzer mosaic for you to play with. Either I will get the CG4 ones done, or we need to find another region where we can use the pipeline mosaic. It's possible that the lowest energy solution is best -- L1688, as per Working with L1688. BUT there is something to be said for learning to search the Spitzer Archive all by yourself from scratch.

Skills to learn : reading journal articles. searching using leopard or SHA. downloading and unpacking the files. identifying the files you want from the stack of files you get. using software (spot/leopard or ds9 or anything else of your choice) to create 3-color images using at least one spitzer band. identifying image artifacts.

big things to notice - what is bright in which wavelength? (bonus question: why?) how does resolution matter?

pages on the wiki - 1, 2, 4, and 5 from Working with L1688, as applied there or to another region. 3 is lower priority. 5 is literature searching, and you've kind of already gotten the important parts for CG4 -- there's a list in the proposal.

Plan for your visit

High-level schedule

  • Sunday night, 6pm - pizza party at Luisa's ... 5 or 5:30 if you want to play with Andrew!
  • Monday morning 8:30-12 - lectures
  • Monday afternoon 1:30-5 - software setup. SHA workthrough. Start to work with mosaics.
  • Tuesday all day - hands-on work with computers
  • Wednesday morning - JPL tour
  • Wednesday afternoon - wrapup, plan for when you go home

More details

Stuff i want to review during the first half-day of your visit. Note lots of vocabulary and skills embedded in this list, not necessarily called out. Note also this is likely to be a lot of lecturing. I trust that you will be aggressive re: asking questions!

NEW from Rebull 15:51, 17 May 2010 (PDT) : Working with CG4+SA101 -- specific questions for you to use in conjunction with Working with L1688.


1. basic spitzer operations (how spitzer works, why the cameras do what they do, and what that means for the images you get, etc.. beginnings of this on the wiki.

2. basic (low mass) star formation and how we know what we know. we have done some of this already. i kinda want to review it in person to (a) make sure all the students are keeping up with us, and (b) to give you a chance to ask new questions as you re-encounter this stuff. color-color and color-magnitude diagrams and SEDs included here. several wiki pages on this.

3. basic photometry practical concepts. Introduction to items 6 and 7 from Working with L1688. i need to update the APT wiki page so that we can do this!!

Rest of the visit will be much more hands-on. It'll be up to you all how much of the nitty gritty details you want to get into, or if you just want to take my data reduction and run with it.

4. Reviewing stuff from above re: three color images using spitzer data, what is bright in which band and why. Discussion of any remaining questions from the "things to think about and try" sections of the wiki pages.

5. Using APT to do photometry, at least enough to get the idea of how it works. it is unlikely that we will all grind through everything together. we will pick some objects to do, do the photometry, compare results, talk about how much work is left to do.

6. Bandmerging. Working with large data tables. Using photometry **i reduced for you** to explore star formation with spitzer. color-color diagrams and seds. what they mean. if we have time, comparison to results other studies get elsewhere. This is basically the rest of Working with L1688 -- items 7, 8, 9, 10, and 11.

NOW, keep in mind that much of this is NOT trivial. You can do it, I am sure of it, but it is definitely the deep end of the pool, and it will take much more than part of an afternoon to accomplish. It is entirely likely that we will just get to do the beginnings of it, talk about how it should work, and then do lots of the rest remotely later on. We may never get to items 11 or even 10 from Working with L1688. But we will still have stuff to write up for the poster. With any luck, we can have the poster abstract written before you leave the SSC.

Plan for after you go home

Finish photometry. Finish analysis. Ask more questions as you absorb the information. Include data from other bands. Experiment with maybe doing similar analysis on other regions.