Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4750c Report Date: 09-May-96:19:52 Version: ********** Check-in Date: ********** 1.Proposal Title: WFC OBSERVATIONS OF NGC4319-MARKARIAN 205: HIGH RESOLUTION MORPHOLOGY OF A GALAXY- QUASAR ASSOCIATION DISPLAYING AN ANOMALOUS REDSHIFT ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS AND AGN GO/AM Sub Category OTHER ACTIVE NUCLEI ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. Karl J. Hricko CARTERET HIGH SCHOOL USA 908-494-0948 TEACHER/DEPT. HEAD ------------------------------------------------------------------------------------ 7. Abstract This program involves use of the Wide Field Camera to image NGC 4319 and Mrk 205 in order to examine the morphology of this association. The purpose is to attempt to gain more information about the nature of the filamentary material located between this galaxy-quasar pair. Imaging will be done in two well calibrated filters, F555W and F785LP, in order to provide a good color base-line and spatial map of the spectral characteristics of the material surrounding Mrk 205. These will also be co- added to increase the S/N and increase the level of detail detected in the structure of the material surrounding the quasar. The Wide Field Camera has been chosen instead of the Planetary Camera on the basis of recommendation by image restoration experts at STScI because, despite its lower spatial resolution, the Wide Field Camera will offer a greater chance of detecting any bridging material which may be present due to the fact that there will be more integrated light per pixel in the WFC than the PC. ------------------------------------------------------------------------------------ 8. Scientific Key Words: GALAXIES, QUASARS, REDSHIFT, MORPHOLOGY ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0.56 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4750c PI: Dr. Karl J. Hricko Proposal Title: WFC OBSERVATIONS OF NGC4319-MARKARIAN 205: HIGH RESOLUTION MORPHOLOGY OF A GALAXY- QUASAR ASSOCIATION DISPLAYING AN ANOMALOUS REDSHIFT ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Pi Karl J. Hricko CARTERET HIGH SCHOOL USA Co-I Lewis C. Thomas UNION COUNTY COLLEGE USA Co-I Joseph M. Mitterando CARTERET HIGH SCHOOL USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. The WFC will be used with filters to examine, in detail, the "connection" between NGC-4319 and MRK-205. The two filters are F555W, having a center wave length of 5150 A, and the F785LP. The former has a transmission band resembling that of the eye, while the latter extends the measurement from 7750 to 9850A, well into the IR. The galaxy will be imaged at the center of the WFC Aperture Coordinate system with the preferred orientation being 90D +/- 15D. This places the "connection" to MRK-205 exclusivly on the WF2 CCD chip, thereby avoiding the interfaces between the 4 chips of the WFC. Three alternate orientations place the "connection" in each of the three remaining chips. Note, however, that all exposures should be done at the SAME ORIENT in this program. The CCD's will be pre-flashed before each exposure for maximum sensitivity. Two exposures will be taken for each filter to minimize cosmic ray effects. A slight positional offset will also be done between the F555W exposure and the F785LP useage. This will aid in detecting any artifacts on the CCDs. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Because of the attention directed toward the matter of the NGC4319-MRK205 association it would be of significant importance to use the unique capability of the HST to obtain high resolution WFC images of the "bridge-like" feature. This would provide additonal information as to whether or not this feature may be a physical connection between this galaxy-quasar pair. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. All exposures in this program should be done within 7 days, and at the SAME ORIENT. The preferred ORIENT angle is 90D +/- 15D, in order to place Mrk 205 and the filaments on the best chip, WF2, with three other acceptable angles being listed as well, specifically ORIENT 0D +/- 15D, 180D +/- 15D, and 270D +/- 15D. These are intended to place the quasar image near the middle of the chip and therefore to avoid having the quasar image placed on the boundary between chips. The target position defined in the Fixed Target List is near the nucleus of NGC 4319, and this is placed near the apex of the pyramid by the use of the POS TARG special requirement, so that if alternate ORIENT angles are used, the FOV will rotate around the nucleus of NGC 4319 and place Markarian 205 near the middle of one of the chips. A small POS TARG offset of 1 arcsec in x and y is also applied between the F555W and F785LP exposures, in order to aid in identifying any chip defects. PRE-FLASH=YES is selected in order to increase the sensitivity of the chips, and CR-SPLIT=0.5 is specified in order to split each exposure into two exposures each of half the full exposure time duration for that filter in order to assist with the identification and removal of cosmic rays during data reduction. NOTE: The +/- 15D restriction on ORIENT angle is to avoid having a star near the edge of the field of view being rotated onto the same chip as Mrk 205 and possibly bleeding across the chip and over the region of interest between the galaxy nucleus and the quasar. Page 3 ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data Reduction Includes: 1) Recalibration after pipeline processing that is done in PODPS. 2) Co-adding CCD frames in two colors. 3) Image processing. It is anticipated that we will return to STScI to make use of the facilities and expertise in data reduction available there. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). We expect to make use of the resources available at STScI. ------------------------------------------------------------------------------------ 11. Address Information Name: KARL J. HRICKO Category: PI Institution: CARTERET HIGH SCHOOL Address: 10 LAMAR AVENUE City: EDISON State: NJ Zip Code: 08820 Country: USA Telephone: 908-494-0948 Telex (or e-mail): ------------------------------------------------------------------------------------ Name: LEWIS C. THOMAS Category: CoI Institution: UNION COUNTY COLLEGE Address: 236 WATCHUNG AVENUE City: NORTH PLAINFIELD State: NJ Zip Code: 07060 Country: USA Telephone: 201-292-8466 Telex (or e-mail): ------------------------------------------------------------------------------------ Name: JOSEPH M. MITTERANDO Category: CoI Institution: CARTERET HIGH SCHOOL Address: 76 ASH STREET City: CARTERET State: NJ Zip Code: 07008 Country: USA Telephone: 908-969-1739 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4750c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4319- E,301,313 RA = 12H 21M 44.0S +/- 0.3", 2000.0 V=21000 1 V=14.5 +/- 0.1 MRK205 DEC = 75D 19' 20.0" +/- 0.3", PLATE-ID = 01G5 Comments: RADIAL VELOCITY AND MAGNITUDE LISTED ABOVE ARE FOR MRK 205. RADIAL VELOCITY IS ~1700 KM/S AND V=13 FOR NGC 4319. POSITION GIVEN IS NEAR NUCLEUS OF NGC 4319. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4750c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4319- WFC IMAGE WFALL- F555W PRE-FLASH=YES 1 800S 1 1 CYCLE 2 MRK205 FIX CR-SPLIT=0.5 ORIENT 90D +/- 15D SAME ORIENT FOR 2 AS 1 GROUP 1-2 WITHIN 7D Comments: ORIENT=0D+/-15D OR ORIENT=180D+ POS TARG +10,-10 /-15D OR ORIENT=270D+/-15D ARE ALSO ACCEPTABLE. POS TARG IS USED TO PUT CENTER OF NGC 4319 NEAR OR ON APEX OF PYRAMID AND MRK 205 IN MIDDLE OF CHIP. ROLL RANGE +/-15D TO AVOID STAR. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4319- WFC IMAGE WFALL- F785LP PRE-FLASH=YES 1 1200S 1 1 CYCLE 2 MRK205 FIX CR-SPLIT=0.5 POS TARG +11,-9 Comments: SMALL POS TARG OFFSET TO ASSIST IN IDENTIFYING CHIP DEFECTS, ETC. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4750c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PRE-FLASH=YES CR-SPLIT=0.5 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO/AM ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 0.56 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS AND AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category OTHER ACTIVE NUCLEI ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 2; ORIENT 90D +/- 15D; SAME ORIENT FOR 2 AS 1; GROUP 1-2 WITHIN 7D; POS TARG +10,-10; POS TARG +11,-9; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W F785LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC4319-MRK205 ------------------------------------------------------------------------------------------------------------------------------------