CS Cha filter changed from F140 to F165
----- Attempting Submission 1 (Thu May 10 20:00:36 EDT 2007) -----
----- Attempting Submission 2 (Mon Jun 25 16:49:03 GMT 2007) -----
Assigned ID: 473
----- Attempting Submission 1 (Fri Jan 26 17:10:46 EST 2007) -----
Probing the Planet Forming Region of T Tauri Stars in Chamaeleon
By studying the inner, planet-forming regions of circumstellar disks around low-mass pre-main sequence stars we can refine theories of giant planet formation and develop timescales for the evolution of disks and their planets. Spitzer infrared observations of T Tauri stars in the Chamaeleon star-forming region have given us an unprecedented look at dust evolution in young objects. However, despite this ground breaking progress in studying the dust in young disks, the gas properties of the inner disk remain essentially unknown. Using ACS on HST, we propose to measure the H_2 emission originating in the innermost disk regions of classical T Tauri stars in different stages of evolution with the objective of revealing the timescales of gas dissipation and its relationship to dust evolution. This proposal is part of a comprehensive effort with approved programs on Spitzer, Gemini, and Magellan that aim to characterize the state of gas and dust in disks where planets may already have formed.
ACS prism observations are being made of 12 young stellar objects in the Chamaeleon cloud to search for an emission feature at 1600 angstrom. The spectral element is the PR130L being used with the ACS/SBC. A single observation of an orbit in length is scheduled for each target. A pair of short observations is also scheduled, as these are needed for wavelength calibration. The pair of short images is being taken with the F140LP filter on the SBC/ACS.
Revision: CS Cha filter changed from F140 to F165.
Many of our targets were identified by the BOT tool as posing a hazard to the ACS/SBC based on assuming an incorrect spectral type of 05. We note the correct spectral types for these targets below:
1) T-25 M2.5
3) T-8 K2
4) T-26 G2
5) V-BM-CHA K4
6) V-BF-CHA K7
7) V-CS-CHA K6
8) T-6 K0
12) T-56 M0
In Visit 12 there is an additional object flagged by BOT (at 11 17 45.6, -77 04 23.78). However, plotting this object on a 2MASS color-color diagram shows that it cannot be higher than an F0 star and it therefore falls within the limits of Table 7.4 in the ACS handbook.
STAR FORMATION
12
false
0.0
false
false
false
false
false
false
SUPPORTED
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
11 07 19.1800
-76 03 4.90
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
11 07 19.1800
-76 03 4.90
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
10 59 6.9741
-77 01 40.32
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
11 07 20.7222
-77 38 7.29
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
13 08 6.3200
-77 55 5.30
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
13 05 20.8450
-77 39 1.32
J2000
STAR
T TAURI STAR
PROTOPLANETARY DISK
J2000
11 02 25.1160
-77 33 35.95
J2000
STAR
T TAURI STAR
PROTOPLANETARY DISK
J2000
10 58 16.9000
-77 17 17.60
J2000
STAR
T TAURI STAR
PROTOPLANETARY DISK
J2000
11 08 1.8060
-77 42 28.75
J2000
STAR
PROTOPLANETARY DISK
T TAURI STAR
J2000
11 07 19.1800
-76 03 4.90
J2000
STAR
T TAURI STAR
PROTOPLANETARY DISK
J2000
11 08 39.0900
-77 16 4.30
J2000
STAR
T TAURI STAR
PROTOPLANETARY DISK
J2000
11 17 37.0400
-77 04 38.10
J2000
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
ACS/SBC
Imaging
No
No
F140LP
ACS/SBC
Spectroscopic
No
No
PR130L
/private/tmp/OPVisit25463.xml
(Tic-Visit
:proposal-id 11145
:visit-id "01"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:37:50.0"
: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 37040
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "01"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 79
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v01.xml
/private/tmp/OPVisit25464.xml
(Tic-Visit
:proposal-id 11145
:visit-id "02"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:02.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "02"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v02.xml
/private/tmp/OPVisit25465.xml
(Tic-Visit
:proposal-id 11145
:visit-id "03"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:11.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "03"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v03.xml
/private/tmp/OPVisit25466.xml
(Tic-Visit
:proposal-id 11145
:visit-id "04"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:22.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "04"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v04.xml
/private/tmp/OPVisit25467.xml
(Tic-Visit
:proposal-id 11145
:visit-id "05"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:34.0"
: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 37040
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "05"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 79
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v05.xml
/private/tmp/OPVisit25468.xml
(Tic-Visit
:proposal-id 11145
:visit-id "06"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:46.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "06"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v06.xml
/private/tmp/OPVisit25469.xml
(Tic-Visit
:proposal-id 11145
:visit-id "07"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:38:55.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "07"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2983
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v07.xml
/private/tmp/OPVisit25470.xml
(Tic-Visit
:proposal-id 11145
:visit-id "08"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:39:02.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "08"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v08.xml
/private/tmp/OPVisit25471.xml
(Tic-Visit
:proposal-id 11145
:visit-id "09"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:39:11.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "09"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v09.xml
/private/tmp/OPVisit25472.xml
(Tic-Visit
:proposal-id 11145
:visit-id "10"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:39:21.0"
: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 37040
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "10"
:obset-id "10"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "10"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 79
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v10.xml
/private/tmp/OPVisit25473.xml
(Tic-Visit
:proposal-id 11145
:visit-id "11"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:39:27.0"
: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 37040
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "11"
:obset-id "11"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "11"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 79
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v11.xml
/private/tmp/OPVisit25474.xml
(Tic-Visit
:proposal-id 11145
:visit-id "12"
:proposal-version -1
:trans-version "20061210"
:date "25-Jun-2007 10:39:38.0"
: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 74064
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11145
:visit-id "12"
:obset-id "12"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11145
:visit-id "12"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2997
:al-overhead-at-end 0
:internal-dur-at-end 119
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3355
:pcs-gap 0
)
true
1
0
/Users/astrodept/Desktop/HSTapt/OP-cache/HSTcham-v12.xml