MAGELLAN/IMACS MASKS FOR CHAMPLANE RUN MAY 10, 11 2005
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updated (21/04/05) zip file containing 3 masks (.SMF and .nc format)
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Number of masks per field:
field # bright masks # faint masks
----- -------------- -------------
V382Vel 0 1
NGC3256 0 2
GC1 2 2 (from June 2004)
PSR1813 1 1 (from June 2004)
SgrB2 1 1 (from June 2004)
J1655 0 1 (from June 2004)
-- ---
total 4 8
faint = mag >~ 17, exposure time 3x30 min
bright = mag <~ 17, exposure time 3x 5 min
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Field centers taken from .SMF files:
field ra(J2000) dec(J2000)
------ ------------ ------------
V382_A 10:44:48.370 -52:26:00.00
N32_A 10:28:36.800 -44:00:38.70
N32_B 10:28:25.000 -43:59:38.70
GC1_E 17:46:02.000 -28:53:00.00
GC1_F 17:45:32.600 -29:00:00.00
GC1_1 17:45:59.900 -29:00:37.00
GC1_2 17:45:59.900 -28:55:23.00
PSR_A 18:16:30.800 -36:19:34.50
PSR_1 18:16:30.800 -36:19:34.50
SgrB_f 17:47:16.000 -28:22:00.00
SgrB_b 17:47:16.000 -28:22:00.00
J165_f 16:54:00.000 -39:55:54.60
Elevation plot for May 10 2005
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Mask properties
(1) (2) (3) (4) (5) (6)
Field Setup XHa X Ha align magn & CMDs Rmin Rmax Finding Charts
----- --------------------------------- ----------------- ------------ -------------- --------------
* V382Vel:
faint: V382_A.obs/.obw/.SMF/detector/mask 2 13 15 12 .rdb 17.5 23.1 .jpg/.ps .reg
* NGC3256:
faint: N32_A.obs/.obw/.SMF/detector/mask 1 22 5 12 .rdb 18.2 23.1 .jpg/.ps .reg
N32_B.obs/.obw/.SMF/detector/mask 0 11 3 12 .rdb 18.1 22.9 .jpg/.ps .reg
* GC1:
faint: GC1_E.obs/.obw/.SMF/detector/mask ? ?? ? 11 .db/.ps/.gif 18.481 23.124 .jpg/.ps .reg
(2004: 1 24 2 11 all XHa targets were also included in masks observed in 2004)
GC1_F.obs/.obw/.SMF/detector/mask ? ?? ? 8 .db/.ps/.gif 19.244 23.053 .jpg/.ps .reg
(2004: 3 12 3 8 all XHa targets were also included in masks observed in 2004)
bright: GC1_1.obs/.obw/.SMF/detector/mask ? ?? ? 9 .db/.ps/.gif 13.21 18.469 .jpg/.ps .reg
(2004: 1 42 0 9)
GC1_2.obs/.obw/.SMF/detector/mask ? ?? ? 9 .db/.ps/.gif 13.456 18.333 .jpg/.ps .reg
(2004: 0 31 0 9)
* PSR1813:
faint: PSR_A.obs/.obw/.SMF/detector/mask 2 16 5 6 txt/.ps/.gif 18.035 21.595 .jpg/.ps .reg
(2004: 2 19 5 6)
bright: PSR_1.obs/.obw/.SMF/detector/mask 0 14 7 7 txt/.ps/.gif 12.734 17.913 .jpg/.ps .reg
(2004: 0 16 7 7)
* SgrB2:
faint: SgrB_f.obs/.obw/.SMF/detector/mask ? ?? ? 5 .db/.ps/.gif 19.502 22.761 .jpg/.ps .reg
(2004: 0 24 4 5)
bright: SgrB_b.obs/.obw/.SMF/detector/mask 1 7 ? 5 .db/.ps/.gif 14.041 18.734 .jpg/.ps .reg
(2004: 1 14 1 5)
* J1655:
faint: J165_f.obs/.obw/.SMF/detector/mask 1 9 11 5 .db/.ps/.gif 19.08 23.365 .jpg/.ps .reg
(2004: 2 21 12 5)
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1. targets are taken from match lists under 'X' and 'Ha' from
hea-www.harvard.edu/~zhao/opt_data
alignment stars are chosen from _opt.rdb tables, 18 < V < 19.5
2. selection criteria and definitions for the new (=2005) masks:
- faint masks : R < 17
bright masks : R >= 17
- H-alpha excess sources (no X-ray match): H-R < -0.3 && SNR > 5 && Hsharp >= -1 && Hsharp <= 1
X-ray + Halpha excess sources : H-R < -0.2
3. priority scheme (lower number = higher priority)
a. X-ray + Halpha excess sources -2.0
b. X-ray sources -0.5
c. Halpha-excess sources 2
d. alignment stars -4.0
refinements for a+b:
if error95 <= 4" : add -0.5
if sigma=(X/O dist)/matchradius <= 2 : add -0.5
if error95 >= 10": X-ray sources : 3 (lowest priority)
X-ray + Ha excess source : 2 (like "normal" Ha-excess source)
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Notes to the table:
ad (3) number of stars per priority class
XHa = priorities -3.0, -2.5 and -2 (match X-ray / Ha-excess source)
Xopt = priorities -1.5, -1., -0.5 (X-ray match)
H = priority 2 (Ha-excess source)
align = alignment stars
for fields V382Vel and NGC3256 the numbers refer to 3-sigma matches
for the remaining fields the matching was done with the "old"
matching routine, the corresponding numbers are shown in ();
the numbers refer to the status of the sources
according to 2-sigma matching (3-sigma for PSR1813)
E.g. the PSR1813-bright mask has slits for 23 targets, but
2 of those are not considered as 3-sigma matches anymore
ad (4) .db/txt: lists with magnitudes of at least all (or most ..) science targets in a mask
.gif/.ps: colour-magnitude and colour-colour diagrams
XHa sources are indicated in red
ad (5) minimum and maximum R magnitude of the science targets
ad (6) finding charts; north is up, east to the left
colour code for region files and finding charts:
red = priorities -3.0, -2.5 and -2 (XHa)
blue = priorities -1.5, -1 and -0.5 (X)
green = priority 2 (Ha)
yellow = priority 3 (error95>=10") and 5 (e.g. targets of chandra observation)
white = alignment star (TBD for 2005 masks)
mvdb 20/04/05 __________________________________________________________________________________________________