! Proposal 6606, submission 1 ! PI: Dr. Jill Bechtold ! Received Thu Feb 8 17:42:46 EST 1996 ! From: jill@as.arizona.edu ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6606,v 4.1 1996/08/21 18:30:59 pepsa Exp $ ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6606,v 4.1 1996/08/21 18:30:59 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: Sleiman ! Phone: 410-338-4753 , E-mail: sleiman@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Name of Phase I Proposal: archive-0548.bechtold.prop ! Date generated: Fri Dec 22 18:15:18 EST 1995 ! Proposal_Information ! Section 4 Title: The Connection between the Ly-Alpha Forest at z=0.5 and Large Scale Structures in the Galaxy Distribution Proposal_Category: GO Scientific_Category: QSO ABSORPTION LINES Cycle: 6 Investigators PI_name: Dr. Jill Bechtold PI_Institution: University of Arizona CoI_Name: Dr. Howard Yee CoI_Institution: University of Toronto Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. Erica Ellingson CoI_Institution: University of Colorado Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) We will obtain a spectrum of the bright quasar Q0015+162, which is on the edge of the high-redshift (z=0.548) cluster of galaxies, CL 0016+16. A redshift survey of this cluster and its environs has recently been completed at the CFHT (CNOC1), providing redshifts of ~100 faint galaxies in this field between z=0.3 and 0.55. The FOS spectrum will cover the region including the Ly-Alpha forest at these redshifts, as well as the corresponding C IV lines. So far, the striking result of the deep surveys for galaxies associated with Ly-Alpha clouds at very low-redshift is the spatial correlation of the clouds with superclusters and other large structures in the galaxy distribution. We plan to see if this correlation extends to intermediate redshifts, which will have implications for the interpretation of the evolution of the Ly-Alpha forest. Questions ! Free format text (please update) Observing_Description: We estimate that in order to achieve our scientific objectives we require at least S/N = 30 per diode (4 pixels per diode): from simulations of the LyAlpha forest we estimate that 95\% of the lines will then be recovered. The quasar has Johnson R=18.1 magn (from CNOC photometry), and Galactic reddening of E(B-V)=0.017. We request the 1'' aperture in order to obtain high resolution, yet minimize overhead for acquisition. We will apply small wavelength shifts to the data based on ISM lines from the Milky Way, but the likely shifts will not be large enough to compromise the scientific conclusions. We ran SYNPHOT in IRAF, for the G190H grating, and FOS/RED detectors, post-COSTAR, to derive the count rate per diode, assuming the quasar has a power-law continuum with Alpha=0.7. We verified the results with the analytic expressions in the FOS manual. In 7 orbits (see below) we will obtain 240 minutes for this source, and with 0.07 cps/diode, 1008 net counts and 144 dark counts, for S/N=29. We now estimate the total number of orbits. The total visibility for this declination is 52 minutes per orbit. Since we do not know the energy distribution and the quasar may be variable, the 1'' aperture requires the 7+14+20 acquisition procedure. Thus, the first orbit is devoted to acquisition with no exposure of the source. After that, each orbit gives 40 minutes of exposure on source. Thus we require 7 orbits to obtain 240 minutes. Real_Time_Justification: None. We will obtain a high dispersion optical spectrum of this object at the Multiple Mirror Telescope (MMT) which will cover the Mg II region, and help identify metal-line systems along the line-of-sight. Other related optical observations are described in the text. Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: QSO0015+162 Alternate_Names: Description: GALAXY,QSO Position: RA=00H 18M 31.9S +/- 0.1S, ! DEC=+16D 29' 26.4" +/- 0.5", ! RA=0H 0M 0.00S +/- 0S, PLATE-ID=01G3 ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: J2000 RV_or_Z: Z=.56 RA_PM: 0.0 ! Units are seconds of time per year Dec_PM: 0.0 ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=18.1 +/- 0.5 ! Include at least V and B-V B-V=0.0 +/- 0.2 Comments: ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed Visits ! Section 6 Visit_Number: 1 Visit_Requirements: ! Section 7.1 Exposure_Number:10 ! Section 6.5 Target_Name:QSO0015+162 Config:FOS/RD Opmode:ACQ/PEAK Aperture:4.3 Sp_Element:MIRROR Wavelength: Optional_Parameters:SCAN-STEP-Y=1.23, SEARCH-SIZE-Y=3, SEARCH-SIZE-X=1 Number_of_Iterations:1 Time_Per_Exposure:3.63S Special_Requirements:ONBOARD ACQ FOR 20 ! Section 7.2 Comments:stage 1 of 4-stage peakup Exposure_Number:20 ! Section 6.5 Target_Name:QSO0015+162 Config:FOS/RD Opmode:ACQ/PEAK Aperture:1.0 Sp_Element:MIRROR Wavelength: Optional_Parameters:SCAN-STEP-X=0.61,SCAN-STEP-Y=0.61, SEARCH-SIZE-X=2,SEARCH-SIZE-Y=6 Number_of_Iterations:1 Time_Per_Exposure:3.63S Special_Requirements:ONBOARD ACQ FOR 30 ! Section 7.2 Comments:stage 2 of 4-stage peakup Exposure_Number:30 ! Section 6.5 Target_Name:QSO0015+162 Config:FOS/RD Opmode:ACQ/PEAK Aperture:0.5 Sp_Element:MIRROR Wavelength: Optional_Parameters:SCAN-STEP-X=0.29,SCAN-STEP-Y=0.29, SEARCH-SIZE-Y=3, SEARCH-SIZE-X=3 Number_of_Iterations:1 Time_Per_Exposure:3.63S Special_Requirements:ONBOARD ACQ FOR 40 ! Section 7.2 Comments:stage 3 of 4-stage peakup Exposure_Number:40 ! Section 6.5 Target_Name:QSO0015+162 Config:FOS/RD Opmode:ACQ/PEAK Aperture:0.3 Sp_Element:MIRROR Wavelength: Optional_Parameters:SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11, SEARCH-SIZE-Y=4, SEARCH-SIZE-X=4 Number_of_Iterations:1 Time_Per_Exposure:36.0S Special_Requirements:ONBOARD ACQ for 50 ! Section 7.2 Comments:final peakup Exposure_Number:50 ! Section 6.5 Target_Name:QSO0015+162 Config:FOS/RD Opmode:ACCUM Aperture:1.0 Sp_Element:G190H Wavelength: Optional_Parameters: Number_of_Iterations:1 Time_Per_Exposure:14400s Special_Requirements: Comments:exposure on the object ! Section 7.2 Exposure_Number:55 ! Section 6.5 Target_Name:WAVE Config:FOS/RD Opmode:ACCUM Aperture:1.0 Sp_Element:G190H Wavelength: Optional_Parameters: Number_of_Iterations:1 Time_Per_Exposure:DEF Special_Requirements: Comments:calibration for 50; ! Section 7.2 Data_Distribution ! Defaults indicated; change if desired Medium: 8MM ! 8MM or 6250BPI or 1600BPI Blocking_Factor: 10 ! 10 or 1 ! Only astronomers with very old 9- ! track tape drives should consider ! a blocking factor of 1 Ship_To: PI_Address ! STSCI or PI_Address or ! PI Address from Phase I is: ! ! University of Arizona ! Tucson ! 85721 ! ! Ship_Via: UPS ! UPS (2-day) or OVERNIGHT ! Overnight shipping done at PI expense Recipient_Email: ! Needed if Ship_To: is not PI_Address ! ! Let us know what you think of this template and software! ! Please send a list of your likes and dislikes to your Program Coordinator