Proposal_Information ! Section 4 Title: Confirming the Quasar in Cygnus A Proposal_Category: GO Scientific_Category: AGN Cycle: 6 Investigators PI_name: Robert Antonucci PI_Institution: University of California, Santa Barbara CoI_Name: Todd Hurt CoI_Institution: University of California, Santa Barbara Contact: N ! Y or N (designate at most one contact) CoI_Name: Anne Kinney CoI_Institution: Space Telescope Science Institute Contact: N ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) In an earlier G270H spectrum, we discovered an apparent broad MgII line in the prototypical powerful double radio galaxy Cygnus A, showing that the latter harbors a hidden quasar. Because of low SNR and an unflagged bad diode in the FOS/BL array at the redshifted MgII line, this result needs to be confirmed. Questions ! Free format text (please update) Observing_Description: We already have a spectrum under virtually identical conditions (Fig. 1), so it's reliable to go by that. The throughputs are a little lower now, but less of the (spatially extended) target will be outside the observing aperture with Costar. These are compensating (\ltwid 20\%) effects. Our target is spatially extended and complex, so we will use an offset star accurately measured at 2.4 * 10^-15 ergs/cm^2sAngstrom\ on our FOC image (GASP v=12.2). Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: Cyg-A-Offset Alternate_Names: Description: STAR, K III-I Position: RA=19H 59M 26.04S+/-.05S, DEC=40D 43' 52.21"+/-.5" ! PLATE-ID=003S Equinox: J2000 Flux: V=12.2+/-.3, F(3460)=2.4+/-.6E-15 Comments: Target_Number: 2 Target_Name: Cygnus-A Alternate_Names: 3C405 Description: GALAXY, Radio Galaxy Position: RA=19H 59M 28.47S+/-.05S, DEC=40D 44' 02.21"+/-.5" ! RA=0H 0M 0.00S +/- 0S, ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=003S Equinox: J2000 Flux: V=15.1, F(3460)=5.0+/-2.0E-17 ! Include at least V and B-V Comments: SE Component of a double nucleus ! 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 ORIENTation 113D TO 143D Exposure_Number: 1 ! Section 6.5 Target_Name: Cyg-A-Offset Config: FOS/RD Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1S Special_Requirements: ! Section 7.2 ONBOARD ACQuisition FOR 2 ! SAVE OFFSET OFF-1 ! USE OFFSET <id> ! POSition TARGet <x-value>,<y-value> ! SAME POSition AS <exp> Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: Cygnus-A Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Special_Requirements: ! Section 7.2 Time_Per_Exposure: 240M ! ONBOARD ACQuisition FOR <exp-list> ! SAVE OFFSET <id> ! USE OFFSET OFF-1 ! POSition TARGet <x-value>,<y-value> ! SAME POSition AS <exp> ! PHASE <number1[0,1]> TO <number2[0,1]> Comments: Data_Distribution ! Defaults indicated; change if desired Medium: 8MM Blocking_Factor: 10 Ship_To: PI_Address ! STSCI or PI_Address or <free-text> ! PI Address from Phase I is: ! ! Physics Department ! Santa Barbara ! 93106-9530 ! ! 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>