BRC Fall work

Things to do

1. Read Chauhan (Chauhan N, Pandey A.K., Ogura K., Ojha D.K., Bhatt B.C., Ghosh S.K., Rawat P.S., 2009, MNRAS, 396, 964.)|link to paper

2. Read CG4 |link to paper |ADS link to paper

3. Feedback form by Sunday 7/17 to your teacher

4. Make sure that we have all the data available for both clouds.

• a. All the known objects
• b. All the “unknown objects”

5. Finish BRC 27 then work on BRC 34.

6. Answer all the questions in the Working with the BRCs. Type them up if necessary.

7. Post the URL’s for the different bands on the Wiki in the relevant links section.

8. Watch the YouTube videos for each section.

9. Where is the BRC? What is a point source? What is the BRC? What is a foreground star?

10. Under Previously identified sources, checking the duplicates.

11. What is photometry? What is it measured in? What do we convert it into?

12. What does APT really do for you?

13. Why does the MOPEX source pick up wrong objects and miss others?

14. Working with the data tables: Save files in a standard format

• a. BRC number
• b. Cand or known
• c. Underscore
• d. Initials
• e. underscore
• f. Two-number date
• g. Three letter month code
• h. Example: 27cand_chj_09jul.xls

15. Data tables:

• a. Make SEDS with the all 38 candidate objects.

16. Color-color diagram

17. Color-magnitude diagram

Long-term goals:

1. “Pretty pictures” for poster. Three-color images of BRC-27 and BRC-34.

2. Science poster

3. Education poster

4. paper? --Linahan 14:20, 9 July 2011 (PDT)

Extra notes:

Powerpoint 1:

NASA has some great observatories.

Why do we need to use different telescopes?

1. “To see different things”

• a. X-rays vs. gamma rays
• b. Atmosphere absorbs certain wavelengths
• c. Atmosphere is opaque to certain wavelengths
• d. Dusty regions are not seen in optical, can’t see through it

2. Why are we using archival data?

• a. Data does need to be sorted but by the computers but
• b. Cryogen is gone.
• c. Surpassed its lifetime.
• d. 3 & 4 and MIPS is gone but lots of data just haven’t been looked at
• e. Hotter objects shorter waves

Powerpoint 2:

1. What is SSC?

• a. Spitzer Science Center

2. Wavelengths and bands

• a. Bands are x number across but numbers correspond to center

3. Using heritage data

4. Hopefully use WISE data

5. Good to look through the rest of packet

6. P. 34 jail bars and instrument artifacts. Washed out some of the things around it. Messy.

• a. If we found this, we could smooth it out not scientific information

7. Chemistry and elements used

Powerpoint 3:

1. Star formation. Major topic on top of page 3.

• a. Small stars and stars with dusty disk
• b. Phase 0 yee hah yakky yak
• c. Probably won’t be able to pin down the age of the object but will not be able to pin down the distance.
• d. Links and files to movies

2. Extrasolar planets are hot topic

• a. Iphone app to let you know when new planets are found

PowerPoint 4:

1. Most important. Goals:

• a. Science poster
  • i. Paper written
• b. Education poster:
  • i. How can we bring this to other students?
  • ii. How has it opened new doors for you?
  • iii. STEM careers
  • iv. Writing
• c. Other teams will have at least 2 posters

2. Classes on pg. 7 and how it relates to SEDs

• a. How is the energy distributed over different wavelengths

3. Blackbodies

• a. Perfect radiators
• b. Give off all the energy that they produce

4. SEDs

• a. Slopes: left and right

5. Color-color diagrams p. 15

• a. Magnitudes
• b. Reddening of the object

6. Photometry

• a. Not using the MOPEX program

--Linahan 14:20, 9 July 2011 (PDT)

Hourly almanac (airmasses) for our targets

*** Hourly airmass for brc27 ***
Epoch 2000.00: RA   7 04 00.0, dec -11 22 55
Epoch 2011.87: RA   7 04 33.4, dec -11 24 01
At midnight: UT date 2011 Nov 16, Moon 0.72 illum,  31 degr from obj
 Local      UT      LMST      HA     secz   par.angl. SunAlt MoonAlt 
 18 00     4 00    21 18    -9 47   (down)   -71.1     -4.8    ... 
 19 00     5 00    22 18    -8 47   (down)   -73.4     ...     ... 
 20 00     6 00    23 18    -7 47   (down)   -73.5     ...     ... 
 21 00     7 00     0 18    -6 46   (down)   -72.2     ...     ... 
 22 00     8 00     1 18    -5 46  (v.low)   -69.9     ...     -1.6
 23 00     9 00     2 18    -4 46    4.439   -66.3     ...     11.5
  0 00    10 00     3 19    -3 46    2.261   -61.0     ...     24.8
  1 00    11 00     4 19    -2 46    1.602   -52.8     ...     38.4
  2 00    12 00     5 19    -1 46    1.318   -40.0     ...     52.1
  3 00    13 00     6 19    -0 45    1.195   -19.8     ...     65.9
  4 00    14 00     7 19     0 15    1.172     6.7     ...     79.6
  5 00    15 00     8 19     1 15    1.240    30.7     ...     84.8
  6 00    16 00     9 20     2 15    1.430    47.0     -7.7    71.6
At midnight: UT date 2011 Dec 16, Moon 0.67 illum,  51 degr from obj
 Local      UT      LMST      HA     secz   par.angl. SunAlt MoonAlt
 18 00     4 00    23 16    -7 49   (down)   -73.5     -4.0    ... 
 19 00     5 00     0 16    -6 48   (down)   -72.3    -17.1    ... 
 20 00     6 00     1 16    -5 48  (v.low)   -70.0     ...     ... 
 21 00     7 00     2 16    -4 48    4.599   -66.5     ...     ... 
 22 00     8 00     3 17    -3 48    2.297   -61.2     ...     ... 
 23 00     9 00     4 17    -2 48    1.616   -53.2     ...      2.1
  0 00    10 00     5 17    -1 48    1.324   -40.5     ...     15.7
  1 00    11 00     6 17    -0 47    1.197   -20.6     ...     29.4
  2 00    12 00     7 17     0 13    1.171     5.7     ...     42.9
  3 00    13 00     8 17     1 13    1.236    30.0     ...     56.0
  4 00    14 00     9 18     2 13    1.420    46.6     ...     67.7
  5 00    15 00    10 18     3 13    1.830    57.0     ...     74.2
  6 00    16 00    11 18     4 13    2.884    63.7    -11.5    69.5

*** Hourly airmass for brc34 ***
Epoch 2000.00: RA  21 33 30.0, dec +58 04 32
Epoch 2011.62: RA  21 33 50.9, dec +58 07 39
At midnight: UT date 2011 Aug 16, Moon 0.93 illum,  61 degr from obj
 Local      UT      LMST      HA     secz   par.angl. SunAlt MoonAlt
 19 00     5 00    16 15    -5 19    2.653   -87.8     -3.0    ... 
 20 00     6 00    17 15    -4 19    1.997  -100.9    -16.4    -1.4
 21 00     7 00    18 15    -3 18    1.639  -115.3     ...     12.4
 22 00     8 00    19 16    -2 18    1.434  -131.9     ...     26.2
 23 00     9 00    20 16    -1 18    1.322  -151.3     ...     39.8
  0 00    10 00    21 16    -0 18    1.277  -173.2     ...     52.9
  1 00    11 00    22 16     0 42    1.288   164.1     ...     64.6
  2 00    12 00    23 16     1 42    1.359   143.1     ...     71.8
  3 00    13 00     0 16     2 43    1.504   124.9     ...     69.1
  4 00    14 00     1 17     3 43    1.760   109.2     ...     59.1
  5 00    15 00     2 17     4 43    2.212    95.4    -14.8    46.5
  6 00    16 00     3 17     5 43    3.080    82.7     -1.4    33.2
At midnight: UT date 2011 Sep 16, Moon 0.86 illum,  66 degr from obj
 Local      UT      LMST      HA     secz   par.angl. SunAlt MoonAlt
 19 00     5 00    18 17    -3 17    1.631  -115.8     -9.2    ... 
 20 00     6 00    19 17    -2 16    1.430  -132.5     ...     ... 
 21 00     7 00    20 18    -1 16    1.320  -151.9     ...      6.6
 22 00     8 00    21 18    -0 16    1.276  -173.9     ...     20.0
 23 00     9 00    22 18     0 44    1.289   163.4     ...     33.6
  0 00    10 00    23 18     1 44    1.362   142.5     ...     47.4
  1 00    11 00     0 18     2 44    1.510   124.3     ...     61.3
  2 00    12 00     1 18     3 45    1.771   108.8     ...     75.2
  3 00    13 00     2 19     4 45    2.232    95.0     ...     87.5
  4 00    14 00     3 19     5 45    3.119    82.3     ...     76.4
  5 00    15 00     4 19     6 45    5.239    70.0    -17.1    62.6
  6 00    16 00     5 19     7 45   14.754    57.7     -3.1    48.8
At midnight: UT date 2011 Oct 16, Moon 0.84 illum,  79 degr from obj
 Local      UT      LMST      HA     secz   par.angl. SunAlt MoonAlt
 18 00     4 00    19 15    -2 18    1.435  -131.9     -1.2    ... 
 19 00     5 00    20 16    -1 18    1.323  -151.2    -15.2    ... 
 20 00     6 00    21 16    -0 18    1.277  -173.2     ...     ... 
 21 00     7 00    22 16     0 42    1.288   164.2     ...      4.2
 22 00     8 00    23 16     1 42    1.358   143.1     ...     17.1
 23 00     9 00     0 16     2 42    1.503   124.9     ...     30.3
  0 00    10 00     1 16     3 43    1.759   109.3     ...     43.6
  1 00    11 00     2 17     4 43    2.211    95.5     ...     57.2
  2 00    12 00     3 17     5 43    3.076    82.7     ...     70.8
  3 00    13 00     4 17     6 43    5.122    70.4     ...     84.0
  4 00    14 00     5 17     7 43   13.931    58.1     ...     81.2
  5 00    15 00     6 17     8 43   (down)    45.4     ...     67.7
  6 00    16 00     7 17     9 44   (down)    32.1     -4.8    54.1