Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 2004c Report Date: 09-May-96:16:51 Version: ********** Check-in Date: ********** 1.Proposal Title: OBSERVATION OF CYCLOTRON LINES IN THE ULTRAVIOLET SPECTRUM OF THE X-RAY SOURCE 4U0115+63 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID STELLAR ASTROPHYSICS GO Sub Category X-RAY BINARIES ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Prof. Krishna m. V. Apparao TATA INSTITUTE OF FUNDAMENTA INDIA 219111 PROFESSOR ------------------------------------------------------------------------------------ 7. Abstract X-ray lines have been observed in the x-ray spectrum of the source 4U0115+63. The source has been identified as a 14 magnitude Be star. The X-ray lines have been identified as electron fundamental cyclotron line and its first harmonic. Apparoa and Chitre calculated the intensity of the proton and the helium cyclotron lines from this source. The helium cyclotron lines occur in the Ultraviolet and it is proposed that these be observed. ------------------------------------------------------------------------------------ 8. Scientific Key Words: CYCLOTRON LINES, X-RAY SOURCE ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 3.00 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 2004c PI: Prof. Krishna m. V. Apparao Proposal Title: OBSERVATION OF CYCLOTRON LINES IN THE ULTRAVIOLET SPECTRUM OF THE X-RAY SOURCE 4U0115+63 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ S. M. Chitre TATA INSTITUTE OF FUNDAMENTAL INDIA RESEARCH Shankar P. Tarafdar TATA INSTITUTE OF FUNDAMENTAL INDIA RESEARCH P.I. Krishna M. V. Apparao TATA INSTITUTE OF FUNDAMENTAL INDIA RESEARCH ------------------------------------------------------------------------------------ 11. Address Information Name: KRISHNA M. V. APPARAO Category: PI Institution: TATA INST. OF FUND. RESEARCH Address: HOMI BHABHA ROAD City: BOMBAY State: Zip Code: 400005 Country: INDIA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 2004c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 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 4U0115+63 STAR; X-RAY STAR RA=01H 18M 31.909S +/- 2000 1 V=15 +/- 1, TYPE=B, E(B-V) = 1.5, 0.15S, DEC=+63D 44' 31.86" +/- 0.2", PLATE-ID = 01MV Comments: CYC-LINES = 1.0 E+35 ERGS PER SECOND ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 2004c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 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 4U0115+63 FOS/BL ACQ/ 4.3 MIRROR BRIGHT=330000 1 33S 1 1 ONBOARD ACQ FOR 2- BINARY FAINT=3300 5 ------------------------------------------------------------------------------------------------------------------------------------ 2 4U0115+63 FOS/BL ACCUM 1.0 G270H 2230- STEP-TIME=0.5 1 650S 10 1 1 3309 POLSCAN=NO ------------------------------------------------------------------------------------------------------------------------------------ 3 4U0115+63 FOS/BL ACCUM 1.0 G160L 1150- STEP-TIME=0.5 1 7568S 5 1 3 2524 POLSCAN=NO ------------------------------------------------------------------------------------------------------------------------------------ 4 4U0115+63 FOS/BL ACCUM 1.0 G400H 3250- STEP-TIME=0.5 300S 10 1 2 4831 POLSCAN=NO ------------------------------------------------------------------------------------------------------------------------------------ 5 4U0115+63 FOS/BL PERIOD 1.0 G400H 3250- SUB-STEP=2 361.35S 10 1 4 4831 BINS=10 CYCLE- TIME=3.6135 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 2004c [ 5] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACCUM PERIOD ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BRIGHT=330000 FAINT=3300 STEP-TIME=0.5 POLSCAN=NO SUB-STEP=2 BINS=10 CYCLE-TIME=3.6135 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 3.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category STELLAR ASTROPHYSICS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category X-RAY BINARIES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 2-5 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H G160L G400H ------------------------------------------------------------------------------------------------------------------------------------ Target Names 4U0115+63 ------------------------------------------------------------------------------------------------------------------------------------