<=== observer ===>
"PMEZGER",\
"Mezger, P.G.",\
"",\
"MPIfR",\
"Postfach 2024",\
"",\
"53010",\
"Bonn",\
"Germany",\
" 49 228525297",\
" 49 228525435",\
"pmezger@mpifr-bonn.mpg.de"
<=== proposal ===>
"PGMGALC",1,2,\
{"galactic structure","dust properties","stellar evolution"},\
{"R.J.Tuffs","E.Kreysa","H.-P.Gemuend","J.B.Schraml","R.Zylka"}
<=== title ===>
Observations of the Galactic Centre with ISO
<=== abstract ===>
SCIENTIFIC ABSTRACT
We propose to survey selected extended regions within the inner 3 x 2
degrees of our Galaxy in the 4 to 200 micron wavelength range. From
smaller structures, such as the Circumnuclear Disk, the Streamer, some
cloud cores, M-0.13-0.08, SgrA East, the ARC as well as previously catalogued
discrete FIR sources, we plan to take surface brightness spectra in the
same wavelength range. Through comparison with model calculations, with
existing images from IRAS, and with images at 2.2 micron and sub-mm
wavelength, these observations will provide much detailed information of
the morphology, the sources of heating, the intensity of the interstellar
radiation field, and the location relative to the Galactic Centre of the
various dust components. A particular goal is to distinguish between the
possible star burst and monster nature of the inner few parsecs.
OBSERVATION SUMMARY
ISOCAM exposures centered on Sgr A*:
- 1.5 arcsec PFOV with the SW4,SW1, SW3, SW8, SW9, SW10, SW5.
- 3.0 arcsec PFOV with the LW1, LW2, LW3, LW7, LW8.
Concatenated P05 and P25 1 dimensional rasters:
- Each raster has 1x32 points with an interval of 3'; the central raster is
centered on SgrA*; its "elongations" are displaced by +- 75' in l and b to
cover in total +-2 degs in l and b. 7 points are overlapping.
P25 from l = +- 2 and b = +- 2 degrees towards Sgr A* at 200 microns.
P05 from l = +- 2 and b = +- 2 degrees towards Sgr A* at
100, 60, 25, 4.85 and 3.6 microns. (Raw IRAS data, which is highly non-linear in
the bright central region, will be compared with the P05 scans at 100, 60 and 25
microns to calibrate the IRAS survey of the central region at these wavelengths).
Large rasters:
1) Raster strip scan with P25 (NY=1, NZ=6 at 200 microns and NY=1, NZ=7 at 100
and 60 microns, centered 72" East of Sgr A*). These are concatinated to P32
raster maps at 200, 100 and 60 microns, centered on the same position. The
raster parameters for the P32 are: 200 microns: NY=8, NZ=19, O/S=2, Tint=8sec;
100/60 microns: NY=8, NZ=11, O/S=2/3, Tint=8sec).
2) The same procedure as in 1) applied at the position of the Arc.
Spectral mapping of Sgr A East with ISOPHOT-S:
- P40 13x13 raster with Tint = 32s, deltaY=deltaZ=24 arcsec, centered 72" East
of Sgr A*. For a spring launch, where the source may not be visible in any one
orbit for greater than an hour, we perform this raster as the sum of 7x7, 7x6,
6x7 and 6x6 rasters sampled at 48 arcsec in equatorial coordinates.
- 25 microns linear scans in fixed equatorial orientation.
Small rasters at intemediate wavelengths:
- Raster strip scan with P25 (NY=1, NZ=3 at 135 microns and NY=1, NZ=3 at 70
and 50 microns, centered 72" East of Sgr A*). These are concatinated to P32
raster maps at 135, 70 and 50 microns, centered on the same position. The
raster parameters for the P32 are: 135 microns: NY=4, NZ=7, O/S=2, Tint=8sec;
70/50 microns: NY=4, NZ=5, O/S=2/3, Tint=8sec).
VISIBILITY CONSIDERATIONS: The galactic centre is on the edge of a hole in sky
visibility for spring launch, and the extent to which it will be visible will depend
critically on the time of night of the launch. Therefore, we are only proposing to
observe the full program for an autumn launch. For the spring launch we are
proposing only the very highest priority of the above observations - the ISOCAM
imaging of the central parsecs, the large two dimensional rasters centred 72 arcsec
east of Sgr A* at 200, 100 and 60 micron - and the PHT-S mapping of Sgr A East and
West.
<=== scientific_justification ===>
Time distribution for Spring launch targets
PHT : 4028 7005 7259
total: 4028 7005 7259
Time distribution for Autumn launch targets
PHT : 59604 0 8005
total: 59604 0 8005
<=== autumn_launch_targets ===>
1, "CAM01", 1.0, "N", "SGR A SW4", 17.708149,-28.98850, 1950, 0., 0., 380, 2
2, "CAM01", 1.0, "N", "SGR A SW1", 17.708149,-28.98850, 1950, 0., 0., 215, 3
3, "CAM01", 1.0, "N", "SGR A SW3", 17.708149,-28.98850, 1950, 0., 0., 215, 4
4, "CAM01", 1.0, "N", "SGR A SW8", 17.708149,-28.98850, 1950, 0., 0., 620, 5
5, "CAM01", 1.0, "N", "SGR A SW9", 17.708149,-28.98850, 1950, 0., 0., 620, 6
6, "CAM01", 1.0, "N", "SGR A SW10",17.708149,-28.98850, 1950, 0., 0., 620, 7
7, "CAM01", 1.0, "N", "SGR A SW5", 17.708149,-28.98850, 1950, 0., 0., 620, 0
8, "CAM01", 1.0, "N", "SGR A LW1", 17.708149,-28.98850, 1950, 0., 0., 274, 9
9, "CAM01", 1.0, "N", "SGR A LW2", 17.708149,-28.98850, 1950, 0., 0., 114,10
10, "CAM01", 1.0, "N", "SGR A LW3", 17.708149,-28.98850, 1950, 0., 0., 122,11
11, "CAM01", 1.0, "N", "SGR A LW7", 17.708149,-28.98850, 1950, 0., 0., 114,12
12, "CAM01", 1.0, "N", "SGR A LW8", 17.708149,-28.98850, 1950, 0., 0., 114, 0
13, "PHT05", 1.0, "N", "SGRSLCL100",17.708148,-28.98850, 1950, 0., 0.,1011,14
14, "PHT05", 1.0, "N", "SGRSLE100", 17.757724,-27.92309, 1950, 0., 0., 851,15
15, "PHT05", 1.0, "N", "SGRSLW100", 17.657543,-30.04973, 1950, 0., 0., 851, 0
16, "PHT05", 1.0, "N", "SGRSLCB100",17.708148,-28.98850, 1950, 0., 0.,1011,17
17, "PHT05", 1.0, "N", "SGRSLS100", 17.789712,-29.64004, 1950, 0., 0., 851,18
18, "PHT05", 1.0, "N", "SGRSLN100", 17.627615,-28.32602, 1950, 0., 0., 851, 0
19, "PHT05", 1.0, "N", "SGRSLCL60", 17.708148,-28.98850, 1950, 0., 0.,1009,20
20, "PHT05", 1.0, "N", "SGRSLE60", 17.757724,-27.92309, 1950, 0., 0., 849,21
21, "PHT05", 1.0, "N", "SGRSLW60", 17.657543,-30.04973, 1950, 0., 0., 849, 0
22, "PHT05", 1.0, "N", "SGRSLCB60", 17.708148,-28.98850, 1950, 0., 0.,1009,23
23, "PHT05", 1.0, "N", "SGRSLS60", 17.789712,-29.64004, 1950, 0., 0., 849,24
24, "PHT05", 1.0, "N", "SGRSLN60", 17.627615,-28.32602, 1950, 0., 0., 849, 0
25, "PHT05", 1.0, "N", "SGRSLCL25", 17.708148,-28.98850, 1950, 0., 0.,1007,26
26, "PHT05", 1.0, "N", "SGRSLE25", 17.757724,-27.92309, 1950, 0., 0., 847,27
27, "PHT05", 1.0, "N", "SGRSLW25", 17.657543,-30.04973, 1950, 0., 0., 847, 0
28, "PHT05", 1.0, "N", "SGRSLCB25", 17.708148,-28.98850, 1950, 0., 0.,1007,29
29, "PHT05", 1.0, "N", "SGRSLS25", 17.789712,-29.64004, 1950, 0., 0., 847,30
30, "PHT05", 1.0, "N", "SGRSLN25", 17.627615,-28.32602, 1950, 0., 0., 847, 0
31, "PHT05", 1.0, "N", "SGRSLCL485",17.708148,-28.98850, 1950, 0., 0., 926,32
32, "PHT05", 1.0, "N", "SGRSLE485", 17.757724,-27.92309, 1950, 0., 0., 766,33
33, "PHT05", 1.0, "N", "SGRSLW485", 17.657543,-30.04973, 1950, 0., 0., 766, 0
34, "PHT05", 1.0, "N", "SGRSLCB485",17.708148,-28.98850, 1950, 0., 0., 926,35
35, "PHT05", 1.0, "N", "SGRSLS485", 17.789712,-29.64004, 1950, 0., 0., 766,36
36, "PHT05", 1.0, "N", "SGRSLN485", 17.627615,-28.32602, 1950, 0., 0., 766, 0
37, "PHT05", 1.0, "N", "SGRSLCL36", 17.708148,-28.98850, 1950, 0., 0., 924,38
38, "PHT05", 1.0, "N", "SGRSLE36", 17.757724,-27.92309, 1950, 0., 0., 764,39
39, "PHT05", 1.0, "N", "SGRSLW36", 17.657543,-30.04973, 1950, 0., 0., 764, 0
40, "PHT05", 1.0, "N", "SGRSLCB36", 17.708148,-28.98850, 1950, 0., 0., 924,41
41, "PHT05", 1.0, "N", "SGRSLS36", 17.789712,-29.64004, 1950, 0., 0., 764,42
42, "PHT05", 1.0, "N", "SGRSLN36", 17.627615,-28.32602, 1950, 0., 0., 764, 0
43, "PHT25", 1.0, "N", "SGRSLCL200",17.708148,-28.98850, 1950, 0., 0., 899,44
44, "PHT25", 1.0, "N", "SGRSLE200", 17.757724,-27.92309, 1950, 0., 0., 739,45
45, "PHT25", 1.0, "N", "SGRSLW200", 17.657543,-30.04973, 1950, 0., 0., 739, 0
46, "PHT25", 1.0, "N", "SGRSLCB200",17.708148,-28.98850, 1950, 0., 0., 899,47
47, "PHT25", 1.0, "N", "SGRSLS200", 17.789712,-29.64004, 1950, 0., 0., 739,48
48, "PHT25", 1.0, "N", "SGRSLN200", 17.627615,-28.32602, 1950, 0., 0., 739, 0
49, "PHT25", 1.0, "N", "SGRA* 200", 17.708149,-28.98850, 1950, 0., 0., 214,50
50, "PHT05", 1.0, "N", "SGRA* 100", 17.708149,-28.98850, 1950, 0., 0., 198,51
51, "PHT05", 1.0, "N", "SGRA* 060", 17.708149,-28.98850, 1950, 0., 0., 196,52
52, "PHT05", 1.0, "N", "SGRA* 025", 17.708149,-28.98850, 1950, 0., 0., 196,53
53, "PHT05", 1.0, "N", "SGRA* 4.8", 17.708149,-28.98850, 1950, 0., 0., 112,54
54, "PHT05", 1.0, "N", "SGRA* 3.6", 17.708149,-28.98850, 1950, 0., 0., 112, 0
55, "PHT25", 1.0, "N", "SGR CAL200",17.709673,-28.98850, 1950, 0., 0., 315,56
56, "PHT32", 1.0, "N", "SGR BM200", 17.709673,-28.98850, 1950, 0., 0.,2735, 0
57, "PHT25", 1.0, "N", "SGR CAL100",17.709673,-28.98850, 1950, 0., 0., 427,58
58, "PHT25", 1.0, "N", "SGR CAL060",17.709673,-28.98850, 1950, 0., 0., 267,59
59, "PHT32", 1.0, "N","SGR BM10060",17.709673,-28.98850, 1950, 0., 0.,3261, 0
60, "PHT40", 1.0, "N", "SGR E SPEC",17.709673,-28.98850, 1950, 0., 0.,6512, 0
61, "PHT25", 3.0, "N", "ARC CAL200",17.709167,-28.08333, 1950, 0., 0., 315,62
62, "PHT32", 3.0, "N", "ARC BM200", 17.709167,-28.08333, 1950, 0., 0.,2735, 0
63, "PHT25", 3.0, "N", "ARC CAL100",17.709167,-28.08333, 1950, 0., 0., 427,64
64, "PHT25", 3.0, "N", "ARC CAL060",17.709167,-28.08333, 1950, 0., 0., 267,65
65, "PHT32", 3.0, "N","ARC BM10060",17.709167,-28.08333, 1950, 0., 0.,3261, 0
66, "PHT05", 3.0, "N", "SGR E 025", 17.709673,-28.98850, 1950, 0., 0., 580,67
67, "PHT05", 3.0, "N", "SGR W 025", 17.708149,-28.98850, 1950, 0., 0., 420, 0
68, "PHT25", 1.0, "N", "SGR CAL135",17.709673,-28.98850, 1950, 0., 0., 253,69
69, "PHT32", 1.0, "N"," SGR SM200", 17.709673,-28.98850, 1950, 0., 0., 552, 0
70, "PHT25", 1.0, "N", "SGR CAL070",17.709673,-28.98850, 1950, 0., 0., 349,71
71, "PHT25", 1.0, "N", "SGR CAL050",17.709673,-28.98850, 1950, 0., 0., 189,72
72, "PHT32", 1.0, "N", "SGR SM100", 17.709673,-28.98850, 1950, 0., 0., 867, 0
<=== spring_launch_targets ===>
1, "CAM01", 1.0, "N", "SGR A SW4", 17.708149,-28.98850, 1950, 0., 0., 380, 2
2, "CAM01", 1.0, "N", "SGR A SW1", 17.708149,-28.98850, 1950, 0., 0., 215, 3
3, "CAM01", 1.0, "N", "SGR A SW3", 17.708149,-28.98850, 1950, 0., 0., 215, 4
4, "CAM01", 1.0, "N", "SGR A SW8", 17.708149,-28.98850, 1950, 0., 0., 620, 5
5, "CAM01", 1.0, "N", "SGR A SW9", 17.708149,-28.98850, 1950, 0., 0., 620, 6
6, "CAM01", 1.0, "N", "SGR A SW10",17.708149,-28.98850, 1950, 0., 0., 620, 7
7, "CAM01", 1.0, "N", "SGR A SW5", 17.708149,-28.98850, 1950, 0., 0., 620, 0
8, "CAM01", 1.0, "N", "SGR A LW1", 17.708149,-28.98850, 1950, 0., 0., 274, 9
9, "CAM01", 1.0, "N", "SGR A LW2", 17.708149,-28.98850, 1950, 0., 0., 114,10
10, "CAM01", 1.0, "N", "SGR A LW3", 17.708149,-28.98850, 1950, 0., 0., 122,11
11, "CAM01", 1.0, "N", "SGR A LW7", 17.708149,-28.98850, 1950, 0., 0., 114,12
12, "CAM01", 1.0, "N", "SGR A LW8", 17.708149,-28.98850, 1950, 0., 0., 114, 0
13, "PHT25", 2.0, "N", "SGR CAL200",17.709673,-28.98850, 1950, 0., 0., 315,14
14, "PHT32", 2.0, "N", "SGR BM200", 17.709673,-28.98850, 1950, 0., 0.,2735, 0
15, "PHT25", 2.0, "N", "SGR CAL100",17.709673,-28.98850, 1950, 0., 0., 427,16
16, "PHT25", 2.0, "N", "SGR CAL060",17.709673,-28.98850, 1950, 0., 0., 267,17
17, "PHT32", 2.0, "N","SGR BM10060",17.709673,-28.98850, 1950, 0., 0.,3261, 0
18, "PHT40", 3.0, "N", "SGR E SP77",17.709673,-28.98850, 1950, 0., 0.,2168, 0
19, "PHT40", 3.0, "N", "SGR E SP66",17.709673,-28.98850, 1950, 0., 0.,1661, 0
20, "PHT40", 3.0, "N", "SGR E SP76",17.709673,-28.98850, 1950, 0., 0.,1895, 0
21, "PHT40", 3.0, "N", "SGR E SP67",17.709673,-28.98850, 1950, 0., 0.,1895, 0