extended link visit 3
----- Submission 1 (Mon May 09 04:06:56 GMT 2005) -----
----- Submission 2 (Tue Oct 18 18:06:36 GMT 2005) -----
----- Submission 3 (Tue Nov 08 20:05:24 GMT 2005) -----
okay
Assigned ID: 507
----- Submission 1 (Fri Jan 21 23:12:12 GMT 2005) -----
The Light Echoes around V838 Monocerotis: MHD in 3 Dimensions, Circumstellar Mapping, and Dust Physics
V838 Monocerotis, which burst upon the astronomical scene in early 2002, is a completely unanticipated new object. It underwent a large-amplitude and very luminous outburst, during which its spectrum remained that of an extremely cool supergiant. A rapidly evolving set of light echoes around V838 Mon was discovered soon after the outburst, and quickly became the most spectacular display of the phenomenon ever seen. The light echoes, which were imaged by us with HST during 2002, provide the means to accomplish four unique types of measurements based on continued HST imaging during the event: (1) Study effects of MHD turbulence at high resolution and in 3 dimensions; (2) Construct the first unambiguous and fully 3-D map of a circumstellar dust envelope in the Milky Way; (3) Study dust physics in a unique setting where the spectrum and light curve of the illumination, and the scattering angle, are unambiguously known; and (4) Determine the distance to V838 Mon through two independent direct geometric techniques (polarimetry and angular expansion rates).
Because of the extreme rarity of light echoes, this is almost certainly the only opportunity to achieve such results during the lifetime of HST. We propose a campaign during Cycle 14 of imaging the echoes every 8 days for a total of 6 epochs, in order to fully map a thin slab through the dust shell and achieve the other goals listed above.
We will use the ACS/WFC to obtain images of the light echoes around V838 Mon in B, V, and I. There will be 6 visits of 3 orbits each, with a spacing of 8 days between visits, for the purpose of obtaining a high-resolution, three-dimensional map of the circumstellar dust. In addition, we will obtain 1 orbit of polarimetry during one of the visits.
ISM AND CIRCUMSTELLAR MATTER
12
false
0.0
false
false
false
false
false
SUPPORTED
ISM
EJECTA
PLANETARY NEBULA
REFLECTION NEBULA
WIND
J2000
07 04 4.8000
-03 50 50.00
J2000
ISM
EJECTA
PLANETARY NEBULA
REFLECTION NEBULA
WIND
Geometric center of light echo, based on data from Visit 1 of this program.
J2000
07 04 4.8000
-03 50 50.00
J2000
ACS/WFC
Imaging
No
No
F435W
ACS/WFC
Imaging
No
No
F606W
ACS/WFC
Imaging
No
No
F814W
POS-TARG
DITHER
2.994
LINE
false
true
3
85.27
ACS-WFC-DITHER-LINE
1
false
POS-TARG
DITHER
2.994
LINE
false
true
3
85.27
ACS-WFC-DITHER-LINE
2
false
POS-TARG
DITHER
2.994
LINE
false
true
2
85.27
ACS-WFC-DITHER-LINE
3
false
POS-TARG
DITHER
0.145
LINE
false
true
2
47.23
ACS-WFC-DITHER-LINE
4
false
(Tic-Visit
:proposal-id 10618
:visit-id "01"
:proposal-version -1
:trans-version "20050502"
:date "11-Jul-2005 10:28:23.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 2558016
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "01"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2686
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "01"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2626
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "01"
:orbit-number 3
:pcs-time 367
:si-vis-utilization 2602
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
false
3
0
(Tic-Visit
:proposal-id 10618
:visit-id "02"
:proposal-version -1
:trans-version "20050502"
:date "11-Jul-2005 10:26:43.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 2558016
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "02"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2686
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "02"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2626
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "02"
:orbit-number 3
:pcs-time 367
:si-vis-utilization 2602
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
false
3
0
(Tic-Visit
:proposal-id 10618
:visit-id "03"
:proposal-version -1
:trans-version "20050502"
:date "11-Jul-2005 10:26:53.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 2558016
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "03"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2686
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "03"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2626
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "03"
:orbit-number 3
:pcs-time 367
:si-vis-utilization 2602
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
false
3
0
(Tic-Visit
:proposal-id 10618
:visit-id "04"
:proposal-version -1
:trans-version "20050502"
:date "11-Jul-2005 10:26:59.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 2558016
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "04"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2686
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "04"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2626
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "04"
:orbit-number 3
:pcs-time 367
:si-vis-utilization 2602
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
false
3
0
/var/tmp/OPVisit45414.xml
(Tic-Visit
:proposal-id 10618
:visit-id "05"
:proposal-version -1
:trans-version "20050717"
:date "08-Nov-2005 14:42:14.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0
:CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 1136896
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "05"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2788
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
true
1
0
/var/tmp/OPVisit45410.xml
(Tic-Visit
:proposal-id 10618
:visit-id "06"
:proposal-version -1
:trans-version "20050717"
:date "08-Nov-2005 13:29:21.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0
:CONTINUABLE-FATALS 0)
:number-of-orbits 4
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 2126816
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "06"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2790
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "06"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2787
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "06"
:orbit-number 3
:pcs-time 367
:si-vis-utilization 2788
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "06"
:orbit-number 4
:pcs-time 367
:si-vis-utilization 2737
:al-overhead-at-end 0
:internal-dur-at-end 192
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
true
4
0
/var/tmp/OPVisit45411.xml
(Tic-Visit
:proposal-id 10618
:visit-id "07"
:proposal-version -1
:trans-version "20050717"
:date "08-Nov-2005 13:35:13.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0
:CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 1705344
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 10618
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 10618
:visit-id "07"
:orbit-number 1
:pcs-time 367
:si-vis-utilization 2790
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 10618
:visit-id "07"
:orbit-number 2
:pcs-time 367
:si-vis-utilization 2787
:al-overhead-at-end 0
:internal-dur-at-end 349
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3157
:pcs-gap 0
)
true
2
0
/var/tmp/OPVisit45406.xml