! $Id: 6235,v 19.1 1996/04/17 14:09:36 pepsa Exp $ ! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template ! ! 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: Christian Ready, ! Phone: 410/338-4546, E-mail: ready@stsci.edu ! Proposal_Information ! Section 4 Title: High Resolution Imaging of Radio Galaxies at Redshifts z~1. Proposal_Category: GTO/OS Scientific_Category: ! Uncomment one of the following ! AGN ! Cool Stars Galaxies & Clusters ! Hot Stars ! Interstellar Medium ! Quasars ! Solar System ! Stellar Populations Cycle: 5 Investigators PI_Name: Malcolm S. Longair PI_Institution: Cambridge University CoI_Name: Philip N. Best CoI_Institution: Cambridge University Contact: Abstract: ! Free format text (clear and concise) Radio galaxies represent the most extensively studied and best defined stellar systems at cosmological redshifts, and as such give unique insights into both the nature of star-formation in distant galaxies and the origin of the AGN activity. In the late 1980's it was discovered that many radio galaxies exhibit a significant blue and ultraviolet excess, which has a tendency to be elongated along the radio axis of the source. This alignment effect shows that active galactic nuclei have a very profound effect upon these young galaxies, and before any progress can be made in modelling the stellar systems inside these galaxies, it is crucial that the causes of this alignment are properly understood. Many theories have been proposed in an attempt to explain the effect, but none are entirely satisfactory. To investigate these issues a sample of 28 radio galaxies with redshifts 0.6 < z < 1.8 was defined. During cycle 4 images of 24 of these galaxies were taken using the HST. The current proposal concerns observations of the same type for the remaining four galaxies plus some additional observations of five of the original 24 galaxies to complement those already taken. Questions ! Free format text (clear and concise) Observing_Description: The four radio-galaxies 3C49, 3C247, 3C277.2 and 3C337 in the original sample of 28 galaxies were omitted from the cycle 4 observations on the basis of limited available observing time. A one orbit exposure of each of these galaxies will be taken through each of two broad-band filters chosen to be at approximately 315 and 475nm in the galaxy rest-frame. These observations are the equivalent of those for the 24 galaxies that were observed in cycle 4. For two of the galaxies which have already been observed, 3C22 and 3C280, it is proposed to take single-orbit exposures in the filter F814W to provide accurate colour information about the detailed structures seen in these images. In addition, for three of the higher redshift galaxies (3C13, 3C239 and 3C241) which were observed for only one orbit in cycle 4, it is proposed to take two further single-orbit exposures to give comparable signal to noise to the lower redshift sources, thus revealing information about the dependence of the alignment upon redshift. Real_Time_Justification: Calibration_Justification: Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: 3C49 Alternate_Names: 0138+136 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 01H 41M 09.08S +/- 0.07S,DEC = +13D 53' 28.4" +/- 1.0", PLATE-ID=028V Equinox: 2000 RV_or_Z: Z = 0.6207 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=22, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 2 Target_Name: 3C247 Alternate_Names: 1056+432 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 10H 58M 58.98S +/- 0.09S,DEC = +43D 01' 25.7" +/- 1.0", PLATE-ID=01QX Equinox: 2000 RV_or_Z: Z = 0.7489 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=21.5, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 3 Target_Name: 3C277.2 Alternate_Names: 1251+159 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 12H 53M 33.24S +/- 0.07S,DEC = +15D 42' 31.13" +/- 1.0", PLATE-ID=01PP Equinox: 2000 RV_or_Z: Z = 0.766 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=21.5, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 4 Target_Name: 3C337 Alternate_Names: 1627+444 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 16H 28M 52.69S +/- 0.09S,DEC = +44D 19' 07.2" +/- 1.0", PLATE-ID=00CL Equinox: 2000 RV_or_Z: Z = 0.635 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=21, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 5 Target_Name: 3C22 Alternate_Names: 0048+509 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 00H 50M 56.20S +/- 0.10S,DEC = +51D 12' 03.9" +/- 1.0", PLATE-ID=02RN Equinox: 2000 RV_or_Z: Z = 0.938 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=22, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 6 Target_Name: 3C280 Alternate_Names: 1254+476 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 12H 56M 57.86S +/- 0.10S,DEC = +47D 20' 20.5" +/- 1.0", PLATE-ID=00XQ Equinox: 2000 RV_or_Z: Z = 0.996 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=21, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 7 Target_Name: 3C13 Alternate_Names: 0031+391 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 00H 34M 14.73S +/- 0.08S,DEC = +39D 24' 13.3" +/- 1.0", PLATE-ID=01JV Equinox: 2000 RV_or_Z: Z = 1.351 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=22.5, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 8 Target_Name: 3C239 Alternate_Names: 1008+467 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 10H 11M 45.28S +/- 0.10S,DEC = +46D 28' 19.4" +/- 1.0", PLATE-ID=01RU Equinox: 2000 RV_or_Z: Z = 1.781 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=23, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy Target_Number: 9 Target_Name: 3C241 Alternate_Names: 1019+222 Description: GALAXY,RADIO GALAXY,HIGH Z GAL Position: RA = 10H 21M 54.61S +/- 0.08S,DEC = +21D 59' 31.7" +/- 1.0", PLATE-ID=0259 Equinox: 2000 RV_or_Z: Z = 1.617 RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: !J2000 Annual_Parallax: Flux: V=23.5, B-V=1 ! Include at least V and B-V Comments: Faint Galaxy ! 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 On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: 3C49 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Each exposure has been set nominally to 1550 seconds. The intention is that each exposure should take one half-orbit and so a slightly longer integration time may be possible. Exposure_Number: 2 ! Section 6.5 Target_Name: 3C49 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Visits ! Section 6 Visit_Number: 2 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: 3C247 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2400s Special_Requirements: LOW-SKY END ORBIT Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: 3C247 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2400s Special_Requirements: LOW-SKY END ORBIT Comments: Visits ! Section 6 Visit_Number: 3 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: 3C277.2 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2400s Special_Requirements: LOW-SKY END ORBIT Exposure_Number: 6 ! Section 6.5 Target_Name: 3C277.2 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2400s Special_Requirements: LOW-SKY END ORBIT Comments: Visits ! Section 6 Visit_Number: 4 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 7 ! Section 6.5 Target_Name: 3C337 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Exposure_Number: 8 ! Section 6.5 Target_Name: 3C337 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Visits ! Section 6 Visit_Number: 5 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 9 ! Section 6.5 Target_Name: 3C13 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Visits ! Section 6 Visit_Number: 6 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: 3C22 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1550s Special_Requirements: DARK TIME ; END ORBIT ; EXPAND Comments: CONVERT TO LOW SKY Visits ! Section 6 Visit_Number: 7 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: 3C239 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 2300s Special_Requirements: LOW-SKY Comments: Visits ! Section 6 Visit_Number: 8 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 12 ! Section 6.5 Target_Name: 3C241 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 2400s Special_Requirements: LOW-SKY END ORBIT Comments: Visits ! Section 6 Visit_Number: 9 Visit_Requirements: ! Section 7.1 On_Hold_Comments: Visit_Comments: Exposure_Number: 13 ! Section 6.5 Target_Name: 3C280 Config: WFPC2 Opmode: IMAGE Aperture: WF3 Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2300s Special_Requirements: LOW-SKY END ORBIT Comments: Data_Distribution ! 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