APT is much easier to use than it used to be, but it is so slow than our Sun Ultra 60 can't run it without timing out in the Orbit Planner. I ended up using my laptop PC. Unable to contact STScI submission server ----- Submission 1 (Fri May 13 00:22:25 GMT 2005) ----- The diagnostic messages are all about the order in which I do coronagraphy and dithered exposures with NICMOS. I have already discussed them with my PC, Andy Lubenow, and with Al Schultz, who tell me to ignore them. Al adds, "The error message must be changed. There is and never has been a requirement for "All NIC2 exposures in a visit after a NIC2-ACQ must use the NIC2-CORON.'" Assigned ID: 459 ----- Submission 1 (Fri Jan 21 22:23:11 GMT 2005) ----- Phase I Proposal 459 (nicmosprop) successfully submitted. ----- Submission 3 (Sat Jan 22 00:05:20 GMT 2005) ----- Phase I Proposal 459 (nicmosprop) successfully submitted. Testing the Stellar Coalescence and Accretion Disk Theories of Massive Star Formation with NICMOS The importance of massive stars cannot be underestimated - they produce most of the heavy elements in the universe and dominate the evolution of the interstellar medium in their vicinity. In spite of their significance, our understanding of their formation is meager. Both accretion through disks, analogous to the process of low-mass star formation, and coalescence of low-mass stars through collisions in the dense cores of stellar clusters have been suggested. Possibly both mechanisms occur. High spatial resolution polarization measurements of the closest massive young stellar objects (YSOs) will enable us to search for evidence of disk accretion or coalescence in the form of patterns indicative of light scattered off a coherent disk or off a disk disrupted by an infalling star, respectively. Here we propose to use 2 micron polarimetry with NICMOS to identify the presence of accretion disks around massive YSOs or to characterize their environments as possibly disrupted from a close stellar encounter. There are only a few sources that meet the stringent selection criteria for this investigation (even with HST), which we will examine here. High spatial resolution is required, but even more important, the point spread function (PSF) must be stable with time. Furthermore, the PSF must put minimal flux into large spatial scales, something that cannot be achieved with adaptive optics. This combination of high Strehl ratio and stable PSF can only be achieved from space.
We will make polarimetric observations of five candidate massive protostars plus one coronagraph PSF calibration star with NICMOS Camera 2. Three of the targets plus the PSF calibration star will be observed using the Camera 2 coronagraph in the three POL filters; then the targets will be moved to the center of the NIC2 array for 4 additional dither measurements. The other two targets do not need the coronagraph and will be measured with a 6 position spiral dither of 13.5 pixels to minimize the effects of bad pixels, the coronagraph hole, and to cover a larger spatial extent. The protostar targets will be measured in two visits each with different ORIENTs so that important regions of the field of view can be sampled regardless of the HST diffraction spikes. The same targets will be measured at two different ORIENTs separated by at least 30 degrees so that important regions of the field of view are not obscured by the HST diffraction spikes.The ORIENTs listed for each visit give the preferred orientation of the NICMOS array on the sky given the 2-gyro constraints; other positions are possible although less desireable, so that the ORIENT range could be changed if the visit is otherwise impossible to schedule. Please contact the Principal Investigator if there are scheduling problems owing to ORIENT so that both visits of each pair for a given target can be reviewed and possibly adjusted. The PSF of the NICMOS Camera 2 coronagraph hole will be measured using a red star of similar color temperature as the science targets. The PSF of the star itself will also be measured for use with the target star dithered observations. STAR FORMATION 12 false 0.0 false false false false false SUPPORTED STAR YSO STAR FORMING REGION ACCRETION DISK The K-band magnitude was measured in a large aperture such that it includes substantial nebulosity. A magnitude of K=7.9 has been estimated from a cycle 7 NICMOS observation in F207M (Preibisch et al. 2002). We also used the F207M image directly to measure the flux in the brightest pixel; it is less than is calculated for K=7.9 by the NICMOS ETC. We use the smallest estimated time for the coronagraph ACQ to avoid overexposure; recalculation of the ACQ exposure time may be necessary for the second visit to this target. K = 6.6, H-K=3.2 J2000 06 07 48.1000 -06 22 55.00 J2000 STAR YSO STAR FORMING REGION K = 9.6 J2000 06 12 53.9000 +17 59 23.00 J2000 STAR YSO STAR FORMING REGION The star with K=8.8 is the brightest star in the field; the primary target of this program is obscured, at least to ground-based observations, by an optically thick disk. K = 8.8 J2000 17 19 57.4000 -35 57 50.00 J2000 STAR STAR FORMING REGION YSO ACCRETION DISK K = 6.4 J2000 20 29 24.9000 +40 11 20.00 J2000 STAR ACCRETION DISK YSO STAR FORMING REGION The K band magnitude was meaasured in a large aperture that includes substantial nebulosity. From the speckle observations of Schertl et al. (2000) we estimate that the central star has only 35% of the flux, giving an estimated K=7.3. This was used to determine the time to be used for the ACQ exposure. We may need to revise this for the second visit to this target. K = 6.4 J2000 22 19 18.1000 +63 18 47.00 J2000 CALIBRATION POINT SPREAD FUNCTION It is not certain that Guide Stars suitable for HST exist for Oph-N9. Please contact the Principal Investigator if it is necessary to schedule a different target. K=9.53 , H-K=2.8 GY232 J2000 00 00 0.0000 +00 00 0.00 J2000 NIC2 Imaging Yes Yes NIC2 Imaging No Yes NIC2 Imaging No Yes NIC2 Imaging Yes Yes NIC2 Imaging Yes Yes NIC2 Imaging Yes Yes POS-TARG DITHER DITHER 1.0213 NIC-XSTRIP-DITH false true 6 0.0 POS-TARG NIC-SPIRAL-DITH 0.0 1 false POS-TARG DITHER DITHER 1.0213 NIC-XSTRIP-DITH false true 4 0.0 POS-TARG NIC-SPIRAL-DITH 0.0 2 false (Tic-Visit :proposal-id 10519 :visit-id "01" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:37:11.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 675840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "01" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2684 :al-overhead-at-end 0 :internal-dur-at-end 146 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3080 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "04" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:38:02.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 675840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "04" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2685 :al-overhead-at-end 0 :internal-dur-at-end 146 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3080 :pcs-gap 0 ) false 1 0 Visit 04 was HOPRed as visit 54. wj (Tic-Visit :proposal-id 10519 :visit-id "04" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:38:02.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 675840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "04" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2685 :al-overhead-at-end 0 :internal-dur-at-end 146 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3080 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "02" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:42:02.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 271648 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "02" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2712 :al-overhead-at-end 0 :internal-dur-at-end 88 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3091 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "03" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:41:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 271648 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "03" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2712 :al-overhead-at-end 0 :internal-dur-at-end 75 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3091 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "05" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:41:24.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 271648 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "05" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2712 :al-overhead-at-end 0 :internal-dur-at-end 88 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3140 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "06" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:40:56.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 271648 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "06" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2712 :al-overhead-at-end 0 :internal-dur-at-end 75 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3140 :pcs-gap 0 ) false 1 0 Please see the comments for Visit 8. (Tic-Visit :proposal-id 10519 :visit-id "07" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:40:32.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 689088 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "07" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 127 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3150 :pcs-gap 0 ) false 1 0 An ORIENT of around 195 is preferable for this visit owing to the position angles of the star and its outflow nebulosity. However, a visit with this ORIENT cannot be scheduled in Cycle 14 for the full 3200 sec and can only be scheduled with as much as 2690 sec in the very last days of June, 2006. If it is impossible for other reasons to schedule this visit in Cycle 14, please contact the Principal Investigator, since other ORIENTs of lesser desireability are possible, but both visits 7 and 8 may need changes. (Tic-Visit :proposal-id 10519 :visit-id "08" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:40:01.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 503536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "08" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2285 :al-overhead-at-end 0 :internal-dur-at-end 148 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "09" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:39:28.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 697920 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "09" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2831 :al-overhead-at-end 0 :internal-dur-at-end 129 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3209 :pcs-gap 0 ) false 1 0 (Tic-Visit :proposal-id 10519 :visit-id "10" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 16:38:49.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 697920 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "10" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2830 :al-overhead-at-end 0 :internal-dur-at-end 134 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3209 :pcs-gap 0 ) false 1 0 PSF Calibration star (Tic-Visit :proposal-id 10519 :visit-id "11" :proposal-version -1 :trans-version "20050323" :date "12-May-2005 12:20:06.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "23" :si-bright-earth-limb-angle 20.0 :data-volume 427376 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 10519 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10519 :visit-id "11" :orbit-number 1 :pcs-time 367 :si-vis-utilization 2678 :al-overhead-at-end 0 :internal-dur-at-end 127 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3147 :pcs-gap 0 ) false 1 0