! Proposal 6540, submission 1 ! PI: Regina E. Schulte-Ladbeck ! Received Tue Feb 20 11:25:37 EST 1996 ! From: nota@stsci.edu ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6540,v 5.1 1997/08/21 18:04:33 pepsa Exp $ ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6540,v 5.1 1997/08/21 18:04:33 pepsa Exp $ ! ! Refer to the HST Phase II Proposal Instructions to fill this out ! ! Anything after a "!" is ignored, and may be deleted ! ! All keywords with multiple entries are comma delimited except the ! Visit_Requirements and Special_Requirements keywords which can be ! delimited with carriage returns or semi-colons, but not commas ! ! For help call your Program Coordinator: Lubenow ! Phone: 410-338-4928 , E-mail: lubenow@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Name of Phase I Proposal: archive-0392.schulte-ladbeck. ! Date generated: Fri Dec 22 16:14:53 EST 1995 ! Proposal_Information ! Section 4 Title: Imaging Circumstellar Nebulae around Luminous Blue Variables in the Magellanic Clouds Proposal_Category: GO Scientific_Category: HOT STARS Cycle: 6 Investigators PI_name: Regina E. Schulte-Ladbeck PI_Institution: University of Pittsburgh, Department of Physics and Astronomy CoI_Name: Antonella Nota CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Mark Clampin CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Mario Livio CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Claus Leitherer CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Anna Pasquali CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) We propose to exploit the unique spatial resolution of the Planetary Camera to image circumstellar ejecta of hot and luminous stars in the Magellanic Clouds (MCs), where ground- based imaging of new, spectroscopically discovered nebulae is difficult and cannot provide meaningful spatial information. The objectives are to study the distribution of the ionized gas and dust in order to determine the morphology and physical properties of the circumstellar nebulae, by observing them in a narrow, line-free V continuum filter and in the HAlpha emission line. These data will provide information about the mass-loss history of the central stars, important for understanding the evolution of massive stars and of the interstellar medium of their host galaxies. Two aspects of this proposal are of particular significance: the study of the nebular morphology, to provide input to hydrodynamic models now becoming available, and the determination of the total mass ejected, which can now be predicted with the latest theoretical models of massive-star evolution. This promises to supply us with a much better knowledge of the statistical properties of LBV nebulae, which is needed to test evolutionary models. There is a larger number of LBVs and candidates known in the MCs than in the Galaxy, and only HST is capable to provide sufficent spatial resolution to study them. Questions ! Free format text (please update) Observing_Description: We propose to use the WFPC2 Planetary Camera to obtain high spatial resolution images of a number of LBVs and candidates in the MCs, with the primary objective of characterizing the observational properties of their circumstellar shells. The Planetary Camera is the ideal instrument for this investigation, for three reasons: beginitemize em high angular resolution (0.046"/pixel) of the Point Spread Function, combined with a relatively large field of view (35"*35"); em good spectral response at the wavelengths of interest; em suitability of the CCD cameras for observations requiring high dynamic range, as WFPC2 CCDs have MPP architecture (see WFPC2 Handbook, 1995), and, therefore, limited blooming on saturated stars. enditemizeFor each object of the sample, we propose to take PC images in the following filters: 547M - V Continuum, and F658N - HAlpha. Our observational strategy will be to obtain two images of each object/filter combination, to properly correct for cosmic rays. The exposure time for each of the two images has been calculated in order to achieve a S/N of 10 in the nebular region, while saturating the central object. On the basis of the WWW WFPC2 exposure time estimator and the WFPC2 handbook, using the PC camera and the F547M filter for a star with V = 11 and surface brightness in the nebula of ~eq 18 magnitudes/square arcsecs, two exposures of 300 secs, for each filter, will achieve a S/N per pixel of 10. For the H Alpha emission, assuming a typical line flux of 6times10^-14 ergs/sec/cm^2/arcsec^2, we derive a S/N per pixel of 10 for two 500 sec exposures. The stars themselves will saturate columns contained within a radius of approximately 0.3 arcsecs. For all exposures we will operate the CCDs with the serial clocks running in order to remove excess charge from saturated columns and prevent charge spreading to adjacent columns. This strategy has already proven successful, allowing us to obtain excellent images of AG Carinae (Proposal 5149). Including the Guide Star Acquisitions and the exposure overheads, the complete set of observations for each target requires 45 minutes, half a CVZ orbit. All of the targets are in the CVZ and are physically close together, so that we can make very efficient use of the allocated time, by observing two of the LMC targets per CVZ orbit. The total time required amounts to 6 CVZ orbits. All of the observations will be taken in CVZ. The CVZ orbits will be used to observe multiple targets. Targets have been ordered so to minimise slew time and length. A bug in RPS2 calculates slew times that are incorrect. We have obtained the correct slew times from R. Henry and finetuned the exp. times using these numbers. The current version of the proposal exceeds the TAC allocation of 6 orbits by approximately 22 min, because in the version the slews are still calculated incorrectly. The proposal needs to be rerun after RPS2 has been fixed. Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: HD35343 Alternate_Names: RMC88,SK-69D94 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 18M 14.84S +/-0.5S, ! Most common specifica DEC=-69D 15' 00.2" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=9.97,B-V=+0.11 ! Include at least V and B-V Comments: Target_Number: 2 Target_Name: HD269858 Alternate_Names: RMC127,SK-69D220 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 36M 43.64S +/-0.5S, ! Most common specif DEC=-69D 29' 45.9" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=11.16,B-V=-0.07 ! Include at least V and B-V Comments: Target_Number: 3 Target_Name: S119 Alternate_Names: HDE269687,BE335 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 31M 25.97S +/-0.5S, ! Most common DEC=-69D 05' 37.9" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=11.90,B-V=-0.07 ! Include at least V and B-V Comments: Target_Number: 4 Target_Name: HD269006 Alternate_Names: RMC71,SK-7D13 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 02M 07.87S +/-0.5S, ! Most common specification DEC=-71D 20' 12.8" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=9.83,B-V=+0.19 ! Include at least V and B-V Comments: Target_Number: 5 Target_Name: HD269582 Alternate_Names: BE294,SK-69D142A Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 27M 53.14S +/-0.5S, ! Most common DEC=-68D 59' 07.9" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=11.88,B-V=-0.04 ! Include at least V and B-V Comments: Target_Number: 6 Target_Name: HD269929 Alternate_Names: RMC143,MH19 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 38M 51.91S +/-0.5S, ! Most common DEC=-69D 08' 07.2" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=12.20 ! Include at least V and B-V Comments: Target_Number: 7 Target_Name: HD6884 Alternate_Names: RMC40,SK130 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=01H 07M 18.48S +/-0.5S, ! Most common DEC=-72D 28' 04.3" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=00RG ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=10.68,B-V=+0.08 ! Include at least V and B-V Comments: Target_Number: 8 Target_Name: HD5980 Alternate_Names: RMC14,SK78 Description: EXT-STAR,LUMINOUS BLUE VARIABLE Position: RA=00H 59M 26.72S +/-0.5S, ! Most common specificatio DEC=-72D 09' 55.4" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=06B1 ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=11.69,B-V=-0.20 ! Include at least V and B-V Comments: Target_Number: 9 Target_Name: S61 Alternate_Names: BE153,SK-67D266 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 45M 52.27S +/-0.5S, ! Most common specification DEC=-67D 14' 25.6" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=06B0 ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=12.01,B-V=-0.13 ! Include at least V and B-V Comments: Target_Number: 10 Target_Name: HDE269927C Alternate_Names: BREY91,SK-69D249 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 38M 58.50S +/-0.5S, ! Most common specification DEC=-69D 29' 20.9" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=12.48,B-V=-0.11 ! Include at least V and B-V Comments: Target_Number: 11 Target_Name: HD269445 Alternate_Names: RMC99,SK-68D73 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 23M 00.26S +/-0.5S, ! Most common specification DEC=-68D 01' 46.8" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=11.45,B-V=+0.27 ! Include at least V and B-V Comments: Target_Number: 12 Target_Name: BE381 Alternate_Names: BREY64 Description: EXT-STAR,EMISSION LINE STAR,LUMINOUS BLUE VARIABLE Position: RA=05H 35M 54.61S +/-0.5S, ! Most common specification DEC=-68D 59' 08.4" +/-0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=05ZW ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=13.26,B-V=+0.04 ! Include at least V and B-V Comments: ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed ! Uncomment or copy visit level special requirements needed ! Most of these requirements (including ORIENT) will limit scheduling ! PCS MODE [Fine | Gyro] ! GUIDing TOLerance ! DROP TO GYRO IF NECESSARY [NO REACQuisition] ! ORIENTation TO ! ORIENTation TO FROM ! ORIENTation TO FROM NOMINAL ! SAME ORIENTation AS ! CVZ ! PARallel ! SCHEDulability ! AFTER [BY [TO ]] ! AFTER ! BEFORE ! BETWEEN AND ! GROUP WITHIN