<=== observer ===>
"HIZUMIUR",\
"Izumiura, H.",\
"Department of Astronomy and Eearth Sciences",\
"Tokyo Gakugei University",\
"4-1-1 Nukui-kita, Koganei",\
"",\
"184",\
"Tokyo",\
"Japan",\
" 81 423252111",\
" 81 423249832",\
"izumiura@yamabuki.u-gakugei.ac.jp"
<=== proposal ===>
"REDSTAR2",3,3,\
{"AGB stars","circumstellar envelopes","stellar evolution"},\
{"O. Hashimoto",\
"Seikei Univesity",\
"I. Yamamura",\
"University of Tokyo",\
"T. Tsuji",\
"University of Tokyo",\
"Y. Nakada",\
"University of Tokyo",\
"S. Deguchi",\
"Nobeyama radio obs",\
"K. Noguchi",\
"Nagoya University",\
"T. Onaka",\
"University of Tokyo",\
"T. Tanabe",\
"University of Tokyo",\
"K. Ohnaka",\
"University of Tokyo",\
"S. Nishida",\
"University of Tokyo",\
"L.B.F.M. Waters",\
"SRON Groningen"}
<=== title ===>
Mass-Loss in the Late Stage of Stellar Evolution:
II. Deep Infrared Imaging of Dust Shells Around AGB Stars
<=== abstract ===>
SCIENTIFIC ABSTRACT
We propose to obtain deep images of dust shells around bright AGB stars in
the solar neighbourhood at far-infrared wavelengths with ISOPHOT in order to
investigate mass-loss history in the AGB evolution by determining geometrical
structure of the circumstellar dust shells.
With the results we will be able to examine the mass-loss history on time
scales from a few thousand to a hundred thousand years. They will open a new
way for investigating non-steady mass-loss which is now drawing increasing
attention. Modulation in the rates of mass-loss, which may be caused by
thermal pulses, will be observed if they are really present. The issues posed
by IRAS will be elucidated by ISO.
OBSERVATION SUMMARY
For most sources rectangular maps of 6.5'x30' and of 7.5'x30' will be
obtained with C_90 and C_160 filters, respectively, using the AOT PHT32.
One or two of the most extended sources will be observed with the wider
spatial coverage of 6.5'x45' and 7.5'x45' in order to obtain their full
brightness profiles. In addition, an area of 30'x30' will be mapped with
the staring raster mode with C_160.
The positions of map center for the observation numbers 7-10 and 23-26
in the autumn launch target list and 5-8 and 24-27 in the spring launch list
are for the case that the space craft y-axis is aligned to the direction of
either Right Ascension or Declination. Since the direction of raster scans
will be chosen parallel to the space craft Y-axis in our observations,
those positions will be rotated on the sky about the positions of the central
stars according to the orientation of the space craft, and unpredictable now.
The observation times given in the target lists are calculated using the
observer's manual for ISOPHOT. Observation modes for each AGB object are
briefly summarized in the following tables. We choose integration time per
each raster point of 16sec for all the observations having consulted an ESA
astronomer. This is appropriate since our observations are concentrated on
regions having rather low and smooth brightness distribution.
<=== scientific_justification ===>
Time distribution for autumn launch targets: REDSTAR2
Team top 40% second 30% last 30% total time
JPN : 32,864 27,552 22,594 83,010 sec
Time distribution for spring launch targets: REDSTAR2
Team top 40% second 30% last 30% total time
JPN : 31,824 27,632 23,941 83,397 sec
Positions (1950) SWS PHOT
--------------------------------------------------
WX Psc 01:03:48.09 +12:19:51.4 + +
o Cet 02:16:49.11 -03:12:22.4 + +
IK Tau 03:50:43.76 +11:15:31.9 + +
IW Hya 09:42:56.45 -21:47:53.6
R Hya 13:26:58.37 -23:01:24.3 + +
W Hya 13:46:12.08 -28:07:08.8 +
I-10529 20:07:47.40 -06:25:11.0 +
T MIC 20:24:52.53 -28:25:39.2
--------------------------------------------------
R Scl 01:24:40.02 -32:48:06.8 +
R For 02:27:01.20 -26:19:13.0 +
IRC+10216 09:45:14.89 +13:30:40.8 + +
CIT6 10:13:10.94 +30:49:16.7 +
U Hya 10:35:04.97 -13:07:26.2 +
V Hya 10:49:11.30 -20:59:04.9 + +
Y CVn 12:42:47.08 +45:42:47.9 + +
AFGL3068 23:16:42.40 +16:55:10.0 + +
--------------------------------------------------
Loup et al. (1993) and references therein.
Source Table for Autumn Launch
=========================================================================
F60 F100 b Pr. Approx. Obs. Mode
(Jy) (Jy) time(h)
=========================================================================
WX Psc 215 72.1 -50 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
o Cet 301 88.4 -58 3 1. 6.5'x30', PHT32, C_90
3 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
R Hya 90.1 30.3 +39 1 1. 6.5'x20', PHT32, C_60
1 1. 7.5'x20', PHT32, C_90
-------------------------------------------------------------------------
W Hya 195 72.3 33 1 1.5 6.5'x45', PHT32, C_90
1 1.5 7.5'x45', PHT32, C_160
1 1. 8'x14' x4, PHT22, C_160
-------------------------------------------------------------------------
IRC-10529 216 63.7 -20 2 0.8 6.5'x20', PHT32, C_90
2 0.8 7.5'x20', PHT32, C_60
=========================================================================
R Scl 54.8 23.2 -81 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
R For 16.0 5.1 -68 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
IRC+10216 5650 922 +45 1 1.5 6.5'x45', PHT32, C_90
1 1.5 7.5'x45', PHT32, C_160
1 1. 8'x14' x4, PHT22, C_160
-------------------------------------------------------------------------
V Hya 98.9 29.9 +34 3 1. 6.5'x30', PHT32, C_90
3 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
Y CVn 17.3 7.8 72 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
AFGL3068 249 73.7 -40 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
=========================================================================
total 23.06h (83010sec)
=========================================================================
Source Table for Spring Launch
=========================================================================
F60 F100 b Pr. Approx. Obs. Mode
(Jy) (Jy) time(h)
=========================================================================
WX Psc 215 72.1 -50 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
o Cet 301 88.4 -58 1 1. 6.5'x30', PHT32, C_90
1 1. 7.5'x30', PHT32, C_160
1 1. 8'x14' x4, PHT22, C_160
-------------------------------------------------------------------------
IK Tau 332 103 -31 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
IW Hya 72.5 20.1 +23 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
T Mic 32.6 12.7 -32 2 1. 10'x15'map, PHT32, C_60
2 1. 10'x15'map, PHT32, C_90
=========================================================================
R Scl 54.8 23.2 -81 1 1. 6.5'x30', PHT32, C_90
1 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
R For 16.0 5.1 -68 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
IRC+10216 5650 922 +45 1 1.5 6.5'x45', PHT32, C_90
1 1.5 7.5'x45', PHT32, C_160
1 1. 8'x14' x4, PHT22, C_160
-------------------------------------------------------------------------
CIT6 274 86.1 +56 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
U Hya 17.2 14.5 +38 3 0.3 10'x10', PHT22, C_90
-------------------------------------------------------------------------
V Hya 98.9 29.9 +34 3 1. 6.5'x30', PHT32, C_90
-------------------------------------------------------------------------
Y CVn 17.3 7.8 +72 3 1. 6.5'x30', PHT32, C_90
3 1. 7.5'x30', PHT32, C_160
-------------------------------------------------------------------------
AFGL3068 249 73.7 -40 2 1. 6.5'x30', PHT32, C_90
2 1. 7.5'x30', PHT32, C_160
=========================================================================
total 23.16h (83397sec)
=========================================================================
<=== autumn_launch_targets ===>
1, "PHT32", 1.0, "N", "R Hya ", 13.44956, -23.02342, 1950, 0., 0., 2729, 2
2, "PHT32", 1.0, "N", "R Hya ", 13.44956, -23.02342, 1950, 0., 0., 2559, 0
3, "PHT32", 3.0, "N", "omi Cet ", 02.28031, -03.20622, 1950, 0., 0., 3849, 4
4, "PHT32", 3.0, "N", "omi Cet ", 02.28031, -03.20622, 1950, 0., 0., 3599, 0
5, "PHT32", 1.0, "N", "W Hya ", 13.77002, -28.11911, 1950, 0., 0., 5449, 6
6, "PHT32", 1.0, "N", "W Hya ", 13.77002, -28.11911, 1950, 0., 0., 5199, 7
7, "PHT22", 1.0, "N", "W Hya skirt-a ", 13.75867, -28.04411, 1950, 0., 0., 0785, 8
8, "PHT22", 1.0, "N", "W Hya skirt-b ", 13.76435, -28.26911, 1950, 0., 0., 0785, 9
9, "PHT22", 1.0, "N", "W Hya skirt-c ", 13.78136, -28.19411, 1950, 0., 0., 0785, 10
10, "PHT22", 1.0, "N", "W Hya skirt-d ", 13.77569, -27.96911, 1950, 0., 0., 0785, 0
11, "PHT32", 3.0, "N", "WX Psc ", 01.06336, +12.33094, 1950, 0., 0., 3849, 0
12, "PHT32", 2.0, "N", "IRC-10529 ", 20.12983, -06.41972, 1950, 0., 0., 2729, 13
13, "PHT32", 2.0, "N", "IRC-10529 ", 20.12983, -06.41972, 1950, 0., 0., 2479, 0
14, "PHT32", 2.0, "N", "R Scl ", 01.41111, -32.80188, 1950, 0., 0., 3849, 15
15, "PHT32", 2.0, "N", "R Scl ", 01.41111, -32.80188, 1950, 0., 0., 3599, 0
16, "PHT32", 2.0, "N", "Y CVn ", 12.71308, +45.71331, 1950, 0., 0., 3849, 17
17, "PHT32", 2.0, "N", "Y CVn ", 12.71308, +45.71331, 1950, 0., 0., 3599, 0
18, "PHT32", 3.0, "N", "R For ", 02.45033, -26.32028, 1950, 0., 0., 3849, 0
19, "PHT32", 3.0, "N", "V Hya ", 10.81981, -20.98469, 1950, 0., 0., 3849, 20
20, "PHT32", 3.0, "N", "V Hya ", 10.81981, -20.98469, 1950, 0., 0., 3599, 0
21, "PHT32", 1.0, "N", "CW Leo ", 09.75414, +13.51133, 1950, 0., 0., 5449, 22
22, "PHT32", 1.0, "N", "CW Leo ", 09.75414, +13.51133, 1950, 0., 0., 5199, 23
23, "PHT22", 1.0, "N", "CW Leo skirt-a", 09.74386, +13.58633, 1950, 0., 0., 0785, 24
24, "PHT22", 1.0, "N", "CW Leo skirt-b", 09.74900, +13.36133, 1950, 0., 0., 0785, 25
25, "PHT22", 1.0, "N", "CW Leo skirt-c", 09.76442, +13.43633, 1950, 0., 0., 0785, 26
26, "PHT22", 1.0, "N", "CW Leo skirt-d", 09.75928, +13.66133, 1950, 0., 0., 0785, 0
27, "PHT32", 2.0, "N", "AFGL3068 ", 23.27844, +16.91944, 1950, 0., 0., 3849, 28
28, "PHT32", 2.0, "N", "AFGL3068 ", 23.27844, +16.91944, 1950, 0., 0., 3599, 0
<=== spring_launch_targets ===>
1, "PHT32", 2.0, "N", "T Mic ", 20.41459, -28.42756, 1950, 0., 0., 2729, 2
2, "PHT32", 2.0, "N", "T Mic ", 20.41459, -28.42756, 1950, 0., 0., 2559, 0
3, "PHT32", 1.0, "N", "omi Cet ", 02.28031, -03.20622, 1950, 0., 0., 3849, 4
4, "PHT32", 1.0, "N", "omi Cet ", 02.28031, -03.20622, 1950, 0., 0., 3599, 5
5, "PHT22", 1.0, "N", "omi Cet skirt-a", 02.27029, -03.13122, 1950, 0., 0., 0785, 6
6, "PHT22", 1.0, "N", "omi Cet skirt-b", 02.27530, -03.35622, 1950, 0., 0., 0785, 7
7, "PHT22", 1.0, "N", "omi Cet skirt-c", 02.29033, -03.28122, 1950, 0., 0., 0785, 8
8, "PHT22", 1.0, "N", "omi Cet skirt-d", 02.28532, -03.05622, 1950, 0., 0., 0785, 0
9, "PHT32", 3.0, "N", "IK Tau ", 03.84549, +11.25886, 1950, 0., 0., 3849, 0
10, "PHT32", 2.0, "N", "WX Psc ", 01.06336, +12.33094, 1950, 0., 0., 3849, 11
11, "PHT32", 2.0, "N", "WX Psc ", 01.06336, +12.33094, 1950, 0., 0., 3599, 0
12, "PHT32", 3.0, "N", "IW Hya ", 09.71568, -21.79822, 1950, 0., 0., 3849, 0
13, "PHT32", 1.0, "N", "R Scl ", 01.41111, -32.80188, 1950, 0., 0., 3849, 14
14, "PHT32", 1.0, "N", "R Scl ", 01.41111, -32.80188, 1950, 0., 0., 3599, 0
15, "PHT32", 3.0, "N", "Y CVn ", 12.71308, +45.71331, 1950, 0., 0., 3849, 16
16, "PHT32", 3.0, "N", "Y CVn ", 12.71308, +45.71331, 1950, 0., 0., 3599, 0
17, "PHT32", 3.0, "N", "R For ", 02.45033, -26.32028, 1950, 0., 0., 3849, 0
18, "PHT32", 3.0, "N", "U Hya ", 10.58471, -13.12394, 1950, 0., 0., 1097, 0
19, "PHT32", 2.0, "N", "CIT6 ", 10.21969, +30.82139, 1950, 0., 0., 3849, 20
20, "PHT32", 2.0, "N", "CIT6 ", 10.21969, +30.82139, 1950, 0., 0., 3599, 0
21, "PHT32", 3.0, "N", "V Hya ", 10.81981, -20.98469, 1950, 0., 0., 3849, 0
22, "PHT32", 1.0, "N", "CW Leo ", 09.75414, +13.51133, 1950, 0., 0., 5449, 23
23, "PHT32", 1.0, "N", "CW Leo ", 09.75414, +13.51133, 1950, 0., 0., 5199, 24
24, "PHT22", 1.0, "N", "CW Leo skirt-a ", 09.74386, +13.58633, 1950, 0., 0., 0785, 25
25, "PHT22", 1.0, "N", "CW Leo skirt-b ", 09.74900, +13.36133, 1950, 0., 0., 0785, 26
26, "PHT22", 1.0, "N", "CW Leo skirt-c ", 09.76442, +13.43633, 1950, 0., 0., 0785, 27
27, "PHT22", 1.0, "N", "CW Leo skirt-d ", 09.75928, +13.66133, 1950, 0., 0., 0785, 0
28, "PHT32", 2.0, "N", "AFGL3068 ", 23.27844, +16.91944, 1950, 0., 0., 3849, 29
29, "PHT32", 2.0, "N", "AFGL3068 ", 23.27844, +16.91944, 1950, 0., 0., 3599, 0