ChaMPlane Observation: WIYN/Hydra August 3-7, 2002

ChaMPlane Observation

WIYN/Hydra

August 3-7, 2002


I. Field List

Here are four fields observable at WIYN during this run, ranked by priority.
          ChaMPlane WIYN Observation Field List    August 3-7, 2002
	                                                                  
Pri Field         RA           Dec            glong     glat nH(e22) Mosaic     Targets
-------------------------------------------------------------------------------------------
1  B2224+65       22:25:52.40  +65:35:33.8  108.637    6.845  0.553  kpno00  X Xo H     M F 
2  3EG J2227+6122 22:29:17.00  +61:19:00.9  106.711    3.006  0.995  kpno01  X Xo H     M F 
3  SGR1900+14     19:07:14.30  +09:19:20.1   43.022    0.766  1.420  ctio01  X Xo H XoH M F 
4  MWC297         18:27:39.60  -03:49:52.0   26.803    3.526  0.492  ctio01       H     M F 
-------------------------------------------------------------------------------------------

Click a field name to see the color-magnitude diagram of that field with H-alpha and
Chandra sources marked.

Source lists:

X  Chandra source optical counterparts.  
   NOTE: The purpose of this list is to provide the RA and Dec for
   the Chandra optical counterparts.  Some of the brighter optical
   magnitudes (and Ha-R) may not be accurate due to saturation and
   therefore large psf fit Chi^2.

Xo Chandra source optical counterparts.  
   This list is a subset of list X.  It contains only those objects
   with the correct magnitudes from list X.

H  Ha emission sources with Ha-R < -0.3 and SNR > 5.
   (Ha-R < -0.35 and SNR > 10 for SGR1900+14)

XoH Chandra source optical counterparts with Ha emission.
    The objects in this list are in both Xo and H.
    Only SGR1900+14 has this list.  Other fields don't have 
    Chandra source with Ha emission.    

M  Ha emission sources with -0.3 < Ha-R < -0.2 and SNR > 5.  Most of
   them are probably M stars.
   (-0.35< Ha-R < -0.25 and SNR > 10 for SGR1900+14)

F  FOPS (field positioner) stars with 13 < R < 17.

Note: SGR1900+14 did not go very deep.  It only has 3x4min R images
and one 25 min Ha image.  So its color Ha-R is very noisy.  Therefore
I raised the criteria to select its H and M list.

II. Observing Chart

Here is an elevation chart showing the loci of targets during this run. Horizontal axis is time in hours. Space between the two gray bars are the astronomical twilight zone. Vertical axis is the elevation of the object above horizon in 10-degrees. The targets are, from left to right, MWC297, SGR1900+14, B2224+65 and 3EG J2227+6122.


postscript and txt


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Ping


Ping Zhao: zhao@cfa.harvard.edu