! 5934_hopr.prop
! For repeat of lost G190H observations
!
! Proposal 5934, submission 1
! PI: Dr. Christopher P. O'Dea
! Received Wed Feb 15 18:39:37 EST 1995
! From: odea@stsci.edu
! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template
! $Id: 5934,v 5.1 1996/09/09 20:15:37 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: Ray Lucas
! Phone: 410 338-4716 , E-mail: lucas@stsci.edu
!
! This partially completed template was generated from a Phase I proposal.
! Date generated: Sat Dec 17 10:50:42 EST 1994
!
Proposal_Information ! Section 4
Title: A SEARCH FOR UV ABSORPTION LINES IN THE
INTRACLUSTER MEDIUM OF ABELL 1030
Proposal_Category: GO
Scientific_Category: Galaxies & Clusters
Cycle: 5
Investigators
PI_name: Dr. Christopher P. O'Dea
PI_Institution: Space Telescope Science Institute
CoI_Name: Dr. Stefi A. Baum
CoI_Institution: Space Telescope Science Institute
Contact: ! Y or N (designate at most one contact)
CoI_Name: Dr. Craig Sarazin
CoI_Institution: University of Virginia
Contact: ! Y or N (designate at most one contact)
CoI_Name: Dr. Frazer Owen
CoI_Institution: National Radio Astronomy Observatory
Contact: ! Y or N (designate at most one contact)
Abstract: ! Free format text (please update)
The existence of a cold component of the ICM is suggested by
the recent observations of low-energy x-ray absorption (e.g.,
White Etal 1991). However, the physical state of this cold gas
is completely unknown. Abell 1030 (z=0.177) contains the
brightest uv source currently known in an Abell cluster -- the
quasar B2 1028+313. We propose to seize this unique
opportunity to use the bright uv continuum of the quasar to
probe the ICM. We will conduct a very sensitive search (with
only modest amounts of observing time) for absorption lines
from a cold component of the ICM. If the material cannot be
detected, very restrictive limits will be placed on the
amounts of any such material in the form of molecular gas,
atomic gas, or ionized gas up to temperatures of ~ 5 * 10^5 K,
i.e., N_H lae 10^14 cm^-2 in atomic hydrogen or N_H_2 lae
10^15 cm^-2 in molecular hydrogen. If strong UV absorption
lines are detected, (1) the physical state of this material
will be assessed from the species responsible for the
absorption (molecules, atoms, or ions); (2) we will determine
its kinematics from the velocity structure of the absorption
lines; and (3) we will use the set of absorptions to determine
better estimates of the column densities, velocity widths, and
abundances of the clouds. The detection of a colder component
of the ICM would have profound implications for our
understanding of (1) cooling flows, (2) Lyman-Alpha forest
systems, (3) galaxy formation, and (4) the magnetic field in
the ICM.
Questions ! Free format text (please update)
Observing_Description:
Observable absorption lines exist covering the full range of
temperatures and ionizations from cold molecular or neutral
gas up to very highly ionized gas (O VI). The higher
ionization lines would be detected if the X-ray absorption is
due to ``warm'' gas at ~10^5 K, as has been suggested in
A2256 (Miyaji Etal 1993). At the reshift of the source, the
hydrogen Lyman-Alpha line and the H_2 and HD Lyman and Werner
bands are within the spectral range covered by the G130H
grating. In our integrations, columns smaller than N_H lae
10^14 cm^-2 in atomic hydrogen or N_H_2 lae 10^15 cm^-2 in
molecular hydrogen will be detectable. In this proposal, we
are taking the point of view that our object is to place the
broadest possible observational limits on the cold component
of the ICM, without resort to theory. centerline TABLE 1
We are proposing
observations with the FOS using the G130H (blue detector),
G190H (red detector), and G270H (red detector) gratings
through the 1.0 arcsec aperture. The spectral resolution
(1300) implies a velocity resolution of 230 km sec. The
measured IUE flux F_2000 ~eq 10^-14 ergs s^-1 cm^-2 AA^-1
(Lanzetta Etal 1993) gives the following count rates in the
three gratings, (these are wavelength dependent and represent
conservative choices). N_Lambda(G130H) = 0.06
countssdiode N_Lambda(G190H) = 0.75 countssdiode
N_Lambda(G270H) = 4 countssdiode Since the source is bright
enough for a binary acquisition, the overall overheads are
low and the proposal is relatively efficient. With 3 orbits
at G130H and one orbit each at G190H and G270H, the signal to
noise ratio per pixel will be 20 in G130H, 43 in G190H, and
100 in G270H. This implies that the errors in determining the
equivalent widths will be less than 0.05 Angstrom in all
three gratings. Appendix: Details of
the Equivalent Width Calculations The measured excess X-ray
absorptions in clusters of galaxies are typically 1--3 *
10^21 cm^-2. For the purposes of estimating the strengths of
absorption lines, we will assume N_H = 1.5 * 10^21 cm^-2. As
noted above, the bulk of the absorption is actually due to
oxygen.
Real_Time_Justification:
There are no special requirements.
We are conducting VLA and ground based optical imaging and
spectroscopic observations. We also plan to conduct searches
for HI and CO in the ICM.
Calibration_Justification: ! Move appropriate text from Real_Time_Justification
Additional_Comments:
Fixed_Targets ! Section 5.1
Target_Number: 1
Target_Name:B21028+313
Alternate_Names:Abell-1030
Description:Cluster of Galaxies, BCM, Rich Cluster, Galaxy, Quasar
Position:RA=10H 30M 59.09S +/- 0.01S,
DEC=31D 02' 55.6" +/- 0.1",
PLATE-ID=01AK
! Most common specification format is
! RA=0H 0M 0.00S +/- 0S,
! DEC=0D 0' 0.0" +/- 0",
! PLATE-ID=0000
Equinox:J2000
RV_or_Z:z=0.177
RA_PM: ! Units are seconds of time per year
Dec_PM: ! Units are seconds of arc per year
Epoch:
Annual_Parallax:
Flux:V=16.75
U=16.40
F-CONT(3000)=1.0E-14 ! Include at least V and B-V
Comments: COORDS ARE FROM GASP.
! 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
! Uncomment or copy visit level special requirements needed
! Most of these requirements (including ORIENT) will limit scheduling
! PCS MODE [Fine | Gyro]
! GUIDing TOLerance <angle>
! ORIENTation <angle1> TO <angle2>
! ORIENTation <angle1> TO <angle2> FROM <visit>
! ORIENTation <angle1> TO <angle2> FROM NOMINAL
! SAME ORIENTation AS <visit>
! CVZ
! PARallel
! AFTER <visit> [BY <time1> [TO <time2>]]
! AFTER <date>
! BEFORE <date>
! BETWEEN <date1> AND <date2>
! GROUP <visit-list> WITHIN <time>
! PERIOD <time> AND ZERO-PHASE <date>
! SEQ <visit-list> WITHIN <time>
! ON HOLD [FOR <visit>]
On_Hold_Comments:
Visit_Comments:
Exposure_Number:1 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACQ/BINARY
Aperture:4.3
Sp_Element:MIRROR
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:5.0s
Special_Requirements: ONBOARD ACQ FOR 2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments: ACQ/BIN exposure time of 5.0s is the value recommended
by the FOS Instrument Scientist based on simulations
using the flux from IUE. It is a compromise value given
the spectral shape of the object.
Exposure_Number:2 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACCUM
Aperture:1.0
Sp_Element:G400H
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure: 5M
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:
Exposure_Number:3 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACCUM
Aperture:1.0
Sp_Element:G270H
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:30M
Special_Requirements: ! Section 7.2
EXPAND
MAX DUR 40M
MIN DUR 15M
END ORBIT
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:
Exposure_Number:4 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACCUM
Aperture:1.0
Sp_Element:G190H
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:40M
Special_Requirements: ! Section 7.2
EXPAND
MAX DUR 90M
MIN DUR 20M
END ORBIT
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:Do blind offset to GHRS.
Exposure_Number:5 ! Section 6.5
Target_Name:WAVE
Config:HRS
Opmode:ACCUM
Aperture:SC2
Sp_Element:G140L
Wavelength:1293
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:60S
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:
Exposure_Number:6 ! Section 6.5
Target_Name:B21028+313
Config:HRS
Opmode:ACCUM
Aperture:2.0
Sp_Element:G140L
Wavelength:1293
Optional_Parameters:FP-SPLIT=NO
Number_of_Iterations:1
Time_Per_Exposure:40M
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:Pad to fill orbit.
Exposure_Number:7 ! Section 6.5
Target_Name:B21028+313
Config:HRS
Opmode:ACCUM
Aperture:2.0
Sp_Element:G140L
Wavelength:1293
Optional_Parameters:FP-SPLIT=NO
Number_of_Iterations:1
Time_Per_Exposure:40M
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:Pad to fill orbit.
Exposure_Number:8 ! Section 6.5
Target_Name:WAVE
Config:HRS
Opmode:ACCUM
Aperture:SC2
Sp_Element:G140L
Wavelength:1559
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:60S
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:
Exposure_Number:9 ! Section 6.5
Target_Name:B21028+313
Config:HRS
Opmode:ACCUM
Aperture:2.0
Sp_Element:G140L
Wavelength:1559
Optional_Parameters:FP-SPLIT=NO
Number_of_Iterations:1
Time_Per_Exposure:40M
Special_Requirements: ! Section 7.2
! Uncomment or copy exposure level special requirements needed
! INTeractive ACQuisition FOR <exp-list>
! ONBOARD ACQuisition FOR <exp-list>
! POSition TARGet <x-value>,<y-value>
! SAME POSition AS <exp>
! DO FOR TARGets <targ-list> ! FGS only
! PARallel WITH <exp>
! GROUP-FGS <exp-list> WITHIN <time>
! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]
! RT ANALYSIS [FOR <exp-list>]
! REQuires UPLINK
! DARK TIME
! END ORBIT
! EXPAND
! MAXimum DURation [<time> | <%>]
! MINimum DURation [<time> | <%>]
! NO SPLIT
! PHASE <number1[0,1]> TO <number2[0,1]>
! SEQuence <exp-list> NON-INTerruptible
Comments:Pad to fill orbit.
Visits ! Section 6
Visit_Number:51
Visit_Requirements: ! Section 7.1
On_Hold_Comments:
Visit_Comments: HOPR Repeat for lost G190H observations which failed
previously due to a loss of GS lock.
Exposure_Number:1 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACQ/BINARY
Aperture:4.3
Sp_Element:MIRROR
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:5.0s
Special_Requirements:ONBOARD ACQ FOR 2
Comments: ACQ/BIN exposure time of 5.0s is the value recommended
by the FOS Instrument Scientist based on simulations
using the flux from IUE. It is a compromise value given
the spectral shape of the object.
Exposure_Number:2 ! Section 6.5
Target_Name:B21028+313
Config:FOS/RD
Opmode:ACCUM
Aperture:1.0
Sp_Element:G190H
Wavelength:
Optional_Parameters:
Number_of_Iterations:1
Time_Per_Exposure:40M
Special_Requirements: ! Section 7.2
EXPAND
MAX DUR 90M
MIN DUR 20M
END ORBIT
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 <free-text>
! PI Address from Phase I is:
!
! 3700 San Martin Dr., Baltimore,
! MD 21218
!
!
Ship_Via: UPS ! UPS (2-day) or OVERNIGHT
! Overnight shipping done at PI expense
Recipient_Email: ! Needed if Ship_To: is not PI_Address
! <free-text>
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