Please let me know if there is a problem printing/viewing this proposal.
-R. Fesen232502740Assigned ID: 363
----- Attempting Submission 1 (Fri Apr 08 03:06:48 GMT 2016) -----
HST Phase I Proposal 363 (draft_2016_v4.pdf.apt) successfully submitted.
Receipt: # 363-1POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant.This version has decreased exposure times to avoid "ORBIT VISIBILITY OVERRUN" error from Cycle 24 APT.1778293127----- Attempting Submission 1 (Mon Jul 18 19:47:01 GMT 2016) -----
----- Attempting Submission 2 (Thu Jul 06 18:27:38 GMT 2017) -----
----- Attempting Submission 3 (Mon Jul 10 18:29:01 GMT 2017) -----I am not moving the target using POS and only using the WFC3 4 pt box dither so both my targets
which are 30 arcsec in diameter should not be affected by the FQ422M Quad filter's limited
good, unvignetted field of view.Mapping Calcium Rich Ejecta in Two Type Ia SupernovaeType Ia supernovae (SNe Ia) are thermonuclear explosions of white dwarfs (WDs) in close binary systems with either a non-degenerate or WD companion. SN Ia explosion computations are quite challenging, involving a complex interplay of turbulent hydrodynamics, nuclear burning, conduction, radiative transfer in iron-group rich material and possibly magnetic fields leading to significant uncertainties. Several key questions about expansion asymmetries and the overall characteristics of SNe Ia could be resolved if one could obtain direct observations of the internal kinematics and elemental distributions of young SN Ia remnants.
We propose to use WFC3/UVIS to obtain images of the normal Type Ia supernova remnant 0519-69.0 and the overluminous Type Ia supernova remnant 0509-67.5 in the LMC. The Ca II on-band F390M filter and off-band F336W and FQ422M filters will be used to determine the spatial extent and density distributions of the Ca-rich ejecta via resonance line absorption. Differences in the observed on and off band Ca II fluxes for LMC stars located behind these young 400 - 600 yr old remnants will yield calcium column density estimates for multiple lines-of-sight within these remnants. These results will be compared to the calcium distribution seen in SN 1885, a subluminous SN Ia in M31, already imaged by HST.
The resulting calcium density distribution maps for both a normal and overluminous SN Ia events will provide powerful insights regarding the structure and kinematics of calcium-rich ejecta in three different type Ia subclass events, and unique empirical data with which to test current SN Ia explosion models.This project aims at imaging two very young Type Ia supernova remnants in the LMC using three WFC3/UVIS filters. The filters are: F390M, the quad filter FQ422M, and F410M in place of the F336W filter.
Both targets have angular dimensions around 35 arcseconds.
The reason for the change of filters is in response to a discussion of how best to detect the Ca II 3934, 3968 line absorption. Based on available digital spectra of O to M stars, it has become apparent that several G type stars will have fainter continuum at 3700-3900 Ang which will confuse our identification of potential background stars using the F336W filter which covers this wavelength region.
A better approach is to replace the F336W filter with the F410M filter, which is immediately adjacent to the passband of the FQ422M filter but will sensitive to redshifted Ca II absorption like that observed in S And (SN 1885) in M31. (I have received notice that this filter swao has been approved by STScI.)
NOTE: REVISION MADE: 7 JULY 2017 - Due to recent ground-based observations, we have replaced the three filters for target 0519-690 to just two filters, namely F225W and F336W so as to detect the remnant's Fe-rich ejecta via strong Fe II absorptions in the F225W bandpass.
NOTE: 3rd REVISION: 10 JULY 2017: decreased exposures by 5 seconds (from 730 s to 725) to remove ORBIT VISIBILITY OVERRUN of 9 sec error. Re-ran orbit planner and visit planner in Cycle 25 APT.Stellar Physics6falsefalsefalsefalsefalsefalseSUPPORTEDISMEJECTAYESJ2000J2000ISMEJECTAJ2000J2000WFC3/UVISImagingNoNoF390MWFC3/UVISImagingNoNoFQ422MWFC3/UVISImagingNoNoF336WWFC3/UVISImagingNoNoF390MWFC3/UVISImagingNoNoFQ422MWFC3/UVISImagingNoNoF336WPOS-TARGDITHER0.173LINE0.112falsefalse81.785423.884WFC3-UVIS-DITHER-BOX1false/Users/robtfesen/Desktop/OP-cache/APT_14800_v4-v01.xmlThe scheduling data was generated by CASM 25.2.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 14800
:visit-id "01"
:proposal-version -1
:trans-version "20170613"
:date "10-Jul-2017 14:22:16.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 3464928
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14800
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14800
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3213
:al-overhead-at-end 123
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14800
:visit-id "01"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3313
:al-overhead-at-end 123
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14800
:visit-id "01"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3313
:al-overhead-at-end 123
:internal-dur-at-end 668
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)true30/Users/robtfesen/Desktop/OP-cache/APT_14800_v4-v02.xmlThe scheduling data was generated by CASM 25.2.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 14800
:visit-id "02"
:proposal-version -1
:trans-version "20170613"
:date "10-Jul-2017 14:17:27.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 3464928
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14800
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14800
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3213
:al-overhead-at-end 123
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14800
:visit-id "02"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3313
:al-overhead-at-end 123
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14800
:visit-id "02"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3313
:al-overhead-at-end 123
:internal-dur-at-end 668
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3546
:pcs-gap 0
)true30