! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template ! $Id: 5981,v 15.1 1995/03/21 19:57:37 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: Doug Van Orsow ! Phone: 410 338-4568 , E-mail: vanorsow@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Date generated: Sun Dec 18 10:06:03 EST 1994 ! Proposal_Information ! Section 4 Title: Calibration of Nearby Type Ia Supernovae as Standard Candles: NGC 4639 Proposal_Category: GO Scientific_Category: Galaxies & Clusters Cycle: 5 Investigators PI_name: Allan Sandage PI_Institution: Observatories of the Carnegie Institution of Washington CoI_Name: Gustav Tammann CoI_Institution: Universitat Basel Contact: ! Y or N (designate at most one contact) CoI_Name: Lukas Labhardt CoI_Institution: Universitat Basel Contact: ! Y or N (designate at most one contact) CoI_Name: Duccio Macchetto CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Nino Panagia CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Abhijit Saha CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) We propose to continue our calibration experiment for M(max) of type Ia supernovae (SNe Ia) by determining Cepheid distances to their parent galaxies. To date we have completed the calibration for 3 SNe Ia (SN 1937C in IC 4182 from Cycle 1, and SN 1895B and SN 1972E in NGC 5253 from Cycle 3), and are at the beginning of the calibration of SN 1960F in NGC 4496 and SN 1981B in NGC 4536 from Cycle 4 data being received just now. The experiment is designed to determine how stable M(max) is for SNe Ia, and how large the dispersion is about this mean. To adequately do this we need the calibration of about 10 such SNe Ia. We propose for 84 orbits to observe 2 more parent galaxies of SNe Ia. We now know from the success of the Cycle 4 data that NGC 5055, parent of SN 1971I, and NGC 4414, parent of SN 1974G, are within the capabilities of the present HST. If NGC 4414 is unavailable, being protected for another project, we request that the second galaxy for the proposed Cycle 5 program be NGC 4639, parent of SN 1990N. Questions ! Free format text (please update) Observing_Description: Observations will be carried out with the WFPC2. Properly time spaced observations spanning a period of about 2 months in the V band will be required. A special timing scheme has been specified, which provides maximum detection completeness and phase coverage for Cepheids with periods form 15 to 70 days, and minimizes aliassing problems with period determination. This makes a total of 12 epochs or visits to each galaxy. THIS IS AN EXTREMELY MINIMALIST approach: reducing the number of epochs from this level or altering the timing scheme significantly will introduce aliassing, and incur the risk of obtaining incorrect periods. Each epoch in V (or I) is a pair of back to back orbits, utilizing the orbit duration to the fullest, which results in effective exposure times of 4000s or a little more. The limiting magnitude is thus 28 in V (F555W), and Cepheids with mean magnitudes V < 27.5 can be detected. These numbers are empirical determinations from Cycle 4 data. This means that Cepheids with periods longer than 10 days can be detected at distance moduli up to 31.6, and those with P > 20 days can be found to distance moduli of 32.2. Real_Time_Justification: 1) Timing - Observations need to be conducted at the planned time intervals to ensure adequate coverage of the Cepheids' light curves. 2) Orientation - it is highly desirable (but not essential) to keep the field orientation the same over most of the observing period. The natural telescope roll angle for a given target changes with observation epoch. Hence the time of year for observations should be chosen to provide the maximum range for off-nominal roll angles so that the field orientation is kept the same over the maximum permissible span of dates. Such accomodation has been possible in previous cycles. Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: NGC4639 Description: GALAXY, SPIRAL Position: RA=12H 42M 52.6S +/- 0.5S , ! Most common specification format is DEC = 13D 15' 42.0" +/- 5.0" ! RA=0H 0M 0.00S +/- 0S, ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: 2000.0 ! RV_or_Z: 972 RA_PM: 0 ! Units are seconds of time per year Dec_PM: 0 ! Units are seconds of arc per year Epoch: 1990.0 Annual_Parallax: 0.0 Flux: V = 27.0, Surf-BKG(V)=24.0 ! Include at least V and B-V Comments: repeated visits to find Cepheids ! 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: ORIENT 111.5D to 112.5D; BETWEEN 22-APR-95 AND 8-MAY-95 ! Section 7.1 Visit_Comments: this 1st epoch visit must happen within specified dates and at specified roll angle for sequence to work Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 2 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 8.3D TO 8.7D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 3 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 15.4D TO 15.8D ! Section 7.1 Visit_Comments: Same position as Visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 4 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 21.3D TO 21.7D ! Section 7.1 Visit_Comments: Same pointing position as Visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 3 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F814W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 4 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F814W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 5 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F814W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 5 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 26.1D TO 26.5D ! Section 7.1 Visit_Comments: Same pointing position as Visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 6 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 31.4D TO 31.8D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 7 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 35.3D TO 35.9D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 8 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 39.3D TO 39.9D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 3 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F814W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 4 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F814W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 9 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 45.0D TO 45.6D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 10 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 51.4D TO 52.0D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 11 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 59.3D TO 59.9D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Visit_Number: 12 Visit_Requirements: SAME ORIENT as 1; AFTER 1 BY 68.7D TO 69.3D ! Section 7.1 Visit_Comments: Same pointing as visit 1 Exposure_Number: 1 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2000S Special_Requirements: EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility Exposure_Number: 2 ! Section 6.5 Target_Name: NGC4639 Config: WFPC2 Opmode: IMAGE Aperture: WFALL-FIX Sp_Element: F555W Optional_Parameters: ATD-GAIN = 7, CR-SPLIT = NO Number_of_Iterations: 1 Time_Per_Exposure: 2500S Special_Requirements: SAME POS AS 1; EXPAND; END ORBIT ! Section 7.2 Comments: Exposure should fill the orbit visibility 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: ! ! 813 Santa Barbara Street , ! Pasadena, CA 91101 ! ! 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