<=== observer ===>
"JLEQUEUX",\
"Lequeux, J.",\
"DEMIRM",\
"Observatoire de Paris-Meudon",\
"Place Jules Janssen",\
"",\
"92195",\
"Meudon CEDEX",\
"France",\
"33 145070630",\
"33 146266293",\
"mesioa::lequeux"
<=== proposal ===>
"CAMSFR",\
1,\
5,\
{"normal galaxies","Magellanic Clouds","compact galaxies","dust properties",\
"HII regions"},\
{"C.Bonoli","D.Cesarsky","F.Boulanger","F.Lacombe","J.Lequeux","M.Sauvage",\
"F.Viallefond"}
<=== title ===>
Spectro-imaging of individual star-forming regions in nearby galaxies.
<=== abstract ===>
SCIENTIFIC ABSTRACT:
The aim of this proposal is to image with ISOCAM the infrared
emission of hot dust around 15 micrometers and some of the infrared emission
bands inside and in the surroundings of a variety of extragalactic HII regions.
The selected star-forming regions exhibit a range of strengths and chemical
compositions. They span an abundance range from 1/10 (SMC, NGC 5471 in M 101)
to 3-4 times solar (CCM 71 and 72 in M 51). IZw 18 (1/30 solar) is in another
proposal. Observations with ISOCAM will be considerably more sensitive,
more complete and better calibrated than observations with other existing
means. The nature and the thermal properties of the hot dust which radiates
in the 10-20 micrometer wavelength range are not understood yet, although
it certainly contains silicates. This is also true for the carrier(s) of the
infrared bands, although there is some agreement that they may be PAHs or
related carbonaceous products. Both are likely to be strongly dependent on
the UV radiation field and on the chemical composition of the interstellar
matter. A comparison of the distribution of their infrared emission with
that of the ionized and neutral gas and of "normal" dust should contribute to
the understanding their physics and chemistry. Together with coordinated other
ISO and ground-based observations, it will also allow to study the structure
and the energy balance of these active regions.
OBSERVATION SUMMARY
Full LW CVF scans will be secured for the brightest HII region in each of the
Magellanic Clouds, allowing also a study of atomic lines and extinction.
All the regions will be imaged with the following filters: LW2, 3, 4, 6, 7, 8,
10 and the brightest one (30 Dor) with LW1. All targets will be observed with 6"
pixels with the exception of 30 Dor in filter LW3 (3" pixels). The elementary
integration time will be 2 seconds except for targets in M 101: NGC 5447 and
5471 (filters LW4, 6, 7 and 8: 5 seconds; NGC 5461 filters LW4 and 7: 5 seconds.
Beam Switching (CAM03) will be used for strong targets and microscanning
(CAM01) for faint targets. The observing procedure consists in a
combination of a short beam switch to get the central part and a refernce
background far away from the bulk of the galaxy, followed by a raster map.
This procedure is done for each filter. The expected S/N ratio is in
general larger than 10.
<=== scientific_justification ===>
Time distribution for autumn launch targets:
team top 40% second 30% last 30%
CAM: 37020 0 14280
Total: 37020 0 14280
Time distribution for spring launch targets:
team top 40% second 30% last 30%
CAM: 37020 0 19080
Total: 37020 0 19080
<=== autumn_launch_targets ===>
1, "CAM04", 1.0, "N", "N66(SMC)", 00.95736, -72.44333, 1950, 0., 0.,5120, 0
2, "CAM04", 1.0, "N", "30 Dor", 05.64928, -69.13389, 1950, 0., 0., 5120, 0
3, "CAM03", 1.0, "N", "N66(SMC)", 00.95736, -72.44333, 1950, 0., 0., 5640, 0
4, "CAM01", 1.0, "N", "IC133(M33)", 01.50756, 30.62500, 1950, 0., 0., 1680, 0
5, "CAM03", 1.0, "N", "IC133(M33)", 01.50756, 30.62500, 1950, 0., 0., 890, 0
6, "CAM01", 1.0, "N", "NGC595(M33)", 01.51244, 30.43583, 1950, 0., 0., 880, 0
7, "CAM03", 1.0, "N", "NGC595(M33)", 01.51244, 30.43583, 1950, 0., 0., 1290, 0
8, "CAM03", 1.0, "N", "NGC604(M33)", 01.52878, 30.52889, 1950, 0., 0., 2390, 0
9, "CAM03", 1.0, "N", "30 Dor", 05.64928, -69.13389, 1950, 0., 0., 10350, 0
10, "CAM01", 1.0, "N", "IZW36", 12.39792, 48.76694, 1950, 0., 0., 880, 0
11, "CAM03", 1.0, "N", "IZW36", 12.39792, 48.76694, 1950, 0., 0., 1290, 0
12, "CAM03", 1.0, "N", "CCM71/2(M51)", 13.46056, 48.76694, 1950, 0., 0., 2240, 0
13, "CAM01", 1.0, "N", "N5447(M101)", 14.01189, 54.51167, 1950, 0., 0., 4480, 0
14, "CAM03", 3.0, "N", "N5447(M101)", 14.01189, 54.51167, 1950, 0., 0., 480, 0
15, "CAM01", 1.0, "N", "N5461(M101)", 14.03203, 54.55750, 1950, 0., 0., 3430, 0
16, "CAM03", 3.0, "N", "N5461(M101)", 14.03203, 54.55750, 1950, 0., 0., 730, 0
17, "CAM01", 1.0, "N", "N5471(M101)", 14.04444, 54.63333, 1950, 0., 0., 4830, 0
18, "CAM03", 3.0, "N", "N5471(M101)", 14.04444, 54.63333, 1950, 0., 0., 330, 0
<=== spring_launch_targets ===>
1, "CAM04", 1.0, "N", "N66(SMC)", 00.95736, -72.44333, 1950, 0., 0., 5120, 0
2, "CAM04", 1.0, "N", "30 Dor", 05.64928, -69.13389, 1950, 0., 0., 5120, 0
3, "CAM03", 1.0, "N", "N66(SMC)", 00.95736, -72.44333, 1950, 0., 0., 5640, 0
4, "CAM01", 1.0, "N", "IC133(M33)", 01.50756, 30.62500, 1950, 0., 0., 1680, 0
5, "CAM03", 1.0, "N", "IC133(M33)", 01.50756, 30.62500, 1950, 0., 0., 890, 0
6, "CAM01", 1.0, "N", "NGC595(M33)", 01.51244, 30.43583, 1950, 0., 0., 880, 0
7, "CAM03", 1.0, "N", "NGC595(M33)", 01.51244, 30.43583, 1950, 0., 0., 1290, 0
8, "CAM03", 1.0, "N", "NGC604(M33)", 01.52878, 30.52889, 1950, 0., 0., 2390, 0
9, "CAM03", 1.0, "N", "30 Dor", 05.64928, -69.13389, 1950, 0., 0., 10350, 0
10, "CAM01", 1.0, "N", "IZW36", 12.39792, 48.76694, 1950, 0., 0., 880, 0
11, "CAM03", 1.0, "N", "IZW36", 12.39792, 48.76694, 1950, 0., 0., 1290, 0
12, "CAM03", 1.0, "N", "CCM71/2(M51)", 13.46056, 48.76694, 1950, 0., 0., 2240, 0
13, "CAM01", 1.0, "N", "N5447(M101)", 14.01189, 54.51167, 1950, 0., 0., 4480, 0
14, "CAM03", 3.0, "N", "N5447(M101)", 14.01189, 54.51167, 1950, 0., 0., 480, 0
15, "CAM01", 1.0, "N", "N5461(M101)", 14.03203, 54.55750, 1950, 0., 0., 3430, 0
16, "CAM03", 3.0, "N", "N5461(M101)", 14.03203, 54.55750, 1950, 0., 0., 730, 0
17, "CAM01", 1.0, "N", "N5471(M101)", 14.04444, 54.63333, 1950, 0., 0., 4830, 0
18, "CAM03", 3.0, "N", "N5471(M101)", 14.04444, 54.63333, 1950, 0., 0., 330, 0
19, "CAM01", 3.0, "N", "He 2 10 ", 8.56864, -26.2344, 1950, 0., 0., 1200, 0
20, "CAM03", 3.0, "N", "He 2 10 ", 8.56864, -26.2344, 1950, 0., 0., 1200, 0
21, "CAM01", 3.0, "N", "II ZW 40 ", 5.88469, 3.38528, 1950, 0., 0., 1200, 0
22, "CAM03", 3.0, "N", "II ZW 40 ", 5.88469, 3.38528, 1950, 0., 0., 1200, 0