! HST Proposal 6740 ! PI: Seb Oliver ! From: s.oliver@ic.ac.uk ! ! +====================+ ! | PED OUTPUT PRODUCT | ! +====================+ Proposal_Information Title: Hyper-luminous IRAS Galaxies: Star formation, AGN or Lenses? Proposal_Category: GO Scientific_Category: GALAXIES & CLUSTERS Cycle: 6 Investigators PI_Name: Seb Oliver PI_Institution: Imperial College of Science Technology and Medicine CoI_Name: Michael Rowan-Robinson CoI_Institution: Imperial College of Science Technology and Medicine Contact: CoI_Name: Richard McMahon CoI_Institution: Institute of Astronomy Contact: CoI_Name: Simon Green CoI_Institution: Imperial College of Science Technology and Medicine Contact: Abstract: Hyper-luminous IRAS galaxies emit an enormous amount of power (>10^13LSUN) in the far infrared. This emission is attributed to illuminated dust. These galaxies are important a) because of their huge power and b) because they are seen at cosmological redshifts. The major power source of the FIR illumination is still disputed. While most such galaxies have an AGN it has been argued that star formation is the primary energy source. There may also be an intimate connection between AGN and star formation activity. In either case these objects may represent a very important phase in galaxy/AGN evolution. The two most notable objects in this class have recently been shown to be gravitationally lensed with correspondingly overestimated luminosities. It is important to establish if the same is true for other hyper-luminous galaxies. Tidal interactions appear to play a vital role in triggering the activity of ultra-luminous objects at lower redshift. Yet not all objects show signs of interactions. If any hyper-luminous objects do not appear to be interacting new triggers will have to be invoked. This proposal seeks high resolution imaging of a sample containing a large fraction of the most luminous FIR objects known, to: 1) assess the contribution of nuclear and star-burst components; 2) identify lensed sources; 3) investigate whether interactions/mergers trigger the activity. Questions Observing_Description: In order to detect faint companions and the density of the local environment we want to go to a similar depth for all targets. We selected 3 X 600s exposures in wide I (F814W). This amounts to one orbit per object. A feature with blue surface brightness of 23 mag/arcsec^2 and irregular galaxy spectrum would be detected in this band with SNR/pixel of 4.7. Our chosen depth allows us to detect a b=27 point source at around SNR of 4.5. This band is used by the HST deep survey. Real_Time_Justification: None Calibration_Justification: None Additional_Comments: All objects will have SED measured over the entire ISO spectral range with the exception of PSC09104+4109. PG1148+549 will have its SED from 4.8micron to 200micron measured in the ISO GT Programme PG1634+706 will have its SED from 4.8micron to 200micron measured in the ISO GT Programme on six separate occasions All the remaining galaxies will have their FIR (5-200micron) SED measured as part of the ISO open time proposal RMCMAHON_HYPR_1 (PI R. McMahon, Co-I M. Rowan -Robinson et al.), which was awarded around 16000s priority 1 time. section FSC1530+3252 has been observed with ASCA by McMahon and his colleagues and preliminary results indicate that it has also been detected with a similar luminosity to IRAS FSC 10214+4724. Fixed_Targets Target_Number: 1 Target_Name: FSC00235+1024 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=00H 26M 07.11S +/- 1.",DEC=10D 41' 21.4" +/- 1." Equinox: J2000. RV_or_Z: Z = 0.575 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: R = 21.5+/-0.3 Comments: Target_Number: 2 Target_Name: FSC10026+4949 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=10H 05M 52.49S +/- 1.",DEC=49D 34' 47.8" +/- 1." Equinox: J2000. RV_or_Z: Z = 1.12 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 21.5+/-0.3 Comments: Target_Number: 3 Target_Name: PG1148+549 Alternate_Names: SBSG1148+549,LB2126 Description: GALAXY,QSO,ULTRALUMINOUS IR GAL, Position: RA=11H 51M 20.5S +/- 1.",DEC=54D 37' 33" +/- 1." Equinox: J2000. RV_or_Z: Z = 1.12 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: V = 15.82+/-0.01 B = 16.02+/-0.01 Comments: Target_Number: 4 Target_Name: FSC1220+0939 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=12H 23M 17.82S +/- 1.",DEC=09D 23' 07.4" +/- 1" Equinox: J2000. RV_or_Z: Z = .681 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 17.7+/-0.3 R = 17.7+/-0.3 Comments: Target_Number: 5 Target_Name: FSC12358+1807 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=12H 38M 20.18S +/- 1.",DEC=17D 50' 38.6" +/- 1." Equinox: J2000. RV_or_Z: Z = 0.499 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 18.0+/-0.3 R = 17.0+/-0.3 Comments: Target_Number: 6 Target_Name: FSC12509+3122 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=12H 53M 17.53S +/- 1.",DEC=31D 05' 50.2" +/- 1." Equinox: J2000. RV_or_Z: Z = 0.780 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 16.7+/-0.3 R = 16.3+/-0.3 Comments: Target_Number: 7 Target_Name: FSC142118+3845 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=14H 23M 55.48S +/- 1.",DEC=38D 31' 50.9" +/- 1." Equinox: J2000. RV_or_Z: Z = 0.999 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 19.6+/-0.3 R = 18.5+/-0.3 Comments: Target_Number: 8 Target_Name: FSC15307+3252 Alternate_Names: Description: GALAXY,ULTRALUMINOUS IR GAL, Position: RA=15H 32M 43.94S +/- 1.",DEC=32D 42' 46.3" +/- 1." Equinox: J2000. RV_or_Z: Z = 0.93 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 19.5+/-0.3 R = 18.4+/-0.3 Comments: Target_Number: 9 Target_Name: PG1634+706 Alternate_Names: IRAS16347+7037 Description: GALAXY,QSO,ULTRALUMINOUS IR GAL, Position: RA=16H 34M 29.1S +/- 1.",DEC=70D 31' 33" +/- 1." Equinox: J2000. RV_or_Z: Z = 1.12 RA_PM: 0.0 Dec_PM: 0.0 Epoch: Annual_Parallax: 0.0 Flux: B = 14.90+/-0.01 Comments: Solar_System_Targets Generic_Targets Scan_Data Visits Visit_Number: 90 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: PG1634+706 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=0.1 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: Comments: Exposure_Number: 20 Target_Name: PG1634+706 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=0.4 Number_of_Iterations: 1 Time_Per_Exposure: 17M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 80 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC15307+3252 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 70 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC142118+3845 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 60 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC12509+3122 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 50 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC12358+1807 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 40 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC1220+0939 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 30 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: PG1148+549 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=0.1 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: Comments: Exposure_Number: 20 Target_Name: PG1148+549 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=0.4 Number_of_Iterations: 1 Time_Per_Exposure: 17M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 20 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC10026+4949 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Visit_Number: 10 Visit_Requirements: On_Hold_Comments: Visit_Comments: Exposure_Number: 10 Target_Name: FSC00235+1024 Config: WFPC2 Opmode: IMAGE Aperture: PC1 Sp_Element: F814W Wavelength: Optional_Parameters: CR-SPLIT=No Number_of_Iterations: 3 Time_Per_Exposure: 10M Special_Requirements: EXPAND END ORBIT Comments: Data_Distribution ! Defaults indicated; change if desired Medium: 8MM Blocking_Factor: 10 Ship_To: PI_Address Ship_Via: UPS Recipient_Email: