12216( 18) - 09-Nov-2010 18:42:16 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12216 Version: 18 Check-in Time: 09-Nov-2010 18:42:16 STScI Edit Number: 7 Title Taming the Invisible Monster with COS: Eclipse Spectroscopy of Epsilon Aurigae ------------------------------------------------------------------------------------ Type Cycle GO 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Steve Howell National Optical Astronomy Observatory, AURA CoI: Dr. Robert Stencel University of Denver N CoI: Dr. Donald W. Hoard California Institute of Technology N ------------------------------------------------------------------------------------ Abstract We request three single orbit COS observations of the enigmatic binary epsilon Aurigae. This 27-year binary will be in total eclipse during all of 2010 and into spring 2011. COS observations are needed in order to (1) confirm, via higher S/N UV spectroscopy, the FUSE observation that a B5V star lurks inside the eclipse-causing dust disk, (2) obtain temperature and density diagnostics of the line of sight columns during eclipse for inclusion in the ongoing, panchromatic studies of this rare event, and (3) allow, in coordination with Spitzer Space Telescope observations, a detailed view of the "invisible" large eclipsing dust disk surrounding the B star. Only COS has the full UV wavelength coverage to sample two of the three components in this binary (the F and B stars) with the SNR to accomplish our scientific goals. ------------------------------------------------------------------------------------ Observations Description ------------------------ We wish to use the three orbits as follows: 1) One in Sept 2010 2) Two in Dec 2010 3) Three in April 2010 Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12216( 18) - 09-Nov-2010 18:42:16 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 V-EPS-AUR STAR, F3-F9 RA=05H01M58.1341S +/- 0.1", J2000 V = 3.039 DEC=+43D49'23.91" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 12216( 18) - 09-Nov-2010 18:42:16 - [ 3] Visit: 01 Visit Requirements: BETWEEN 01-SEP-2010:00:00:00 AND 30-SEP-2010:00:00:00 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 STEP-SIZE=1.767 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 4 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 5 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 6 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 7 V-EPS-AUR COS/FUV TIME-TA PSA G140L 1230 BUFFER-TIME=200, FP-POS=2 1 700 S G ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ V-EPS-AUR 1 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KXD V-EPS-AUR 2 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KD V-EPS-AUR 3 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 4 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G V-EPS-AUR 6 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G V-EPS-AUR 7 COS/FUV TIME-TA PSA G140L 1230 none none none none 1 N/A G 12216( 18) - 09-Nov-2010 18:42:16 - [ 4] Visit: 02 Visit Requirements: BETWEEN 01-DEC-2010:00:00:00 AND 30-JAN-2011:00:00:00 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 STEP-SIZE=1.767 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 4 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 5 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 6 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 7 V-EPS-AUR COS/FUV TIME-TA PSA G160M 1577 BUFFER-TIME=205, FP-POS=3 1 305 S G ------------------------------------------------------------------------------------------------------------------------------------ 8 V-EPS-AUR COS/NUV TIME-TA PSA G185M 1835 BUFFER-TIME=150 1 170 S G ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ V-EPS-AUR 1 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KXD V-EPS-AUR 2 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KD V-EPS-AUR 3 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 4 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G V-EPS-AUR 6 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G 12216( 18) - 09-Nov-2010 18:42:16 - [ 5] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ V-EPS-AUR 7 COS/FUV TIME-TA PSA G160M 1577 none none none none 1 N/A G V-EPS-AUR 8 COS/NUV TIME-TA PSA G185M 1835 none none none none 1 N/A G 12216( 18) - 09-Nov-2010 18:42:16 - [ 6] Visit: 03 Visit Requirements: BETWEEN 01-MAR-2011:00:00:00 AND 30-APR-2011:00:00:00 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 V-EPS-AUR COS/FUV ACQ/PEA PSA G130M 1309 STEP-SIZE=1.767 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 4 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 5 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=1 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 6 V-EPS-AUR COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=150, FP-POS=3 1 250 S G ------------------------------------------------------------------------------------------------------------------------------------ 7 V-EPS-AUR COS/FUV TIME-TA PSA G160M 1577 BUFFER-TIME=205, FP-POS=3 1 305 S G ------------------------------------------------------------------------------------------------------------------------------------ 8 V-EPS-AUR COS/NUV TIME-TA PSA G185M 1835 BUFFER-TIME=150 1 170 S G ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ V-EPS-AUR 1 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KXD V-EPS-AUR 2 COS/FUV ACQ/PEA PSA G130M 1309 none none none none 1 N/A KD V-EPS-AUR 3 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 4 COS/FUV TIME-TA PSA G130M 1309 none none none none 1 N/A G V-EPS-AUR 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G V-EPS-AUR 6 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G 12216( 18) - 09-Nov-2010 18:42:16 - [ 7] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ V-EPS-AUR 7 COS/FUV TIME-TA PSA G160M 1577 none none none none 1 N/A G V-EPS-AUR 8 COS/NUV TIME-TA PSA G185M 1835 none none none none 1 N/A G 12216( 18) - 09-Nov-2010 18:42:16 - [ 8] Summary Form for Proposal 12216 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAKD, ACQ/PEAKXD, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=150, BUFFER-TIME=200, BUFFER-TIME=205, FP-POS=1, FP-POS=2, FP-POS=3, STEP-SIZE=1.767 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-DEC-2010:00:00:00 AND 30-JAN-2011:00:00:00, BETWEEN 01-MAR-2011:00:00:00 AND 30-APR-2011:00:00:00, BETWEEN 01-SEP-2010:00:00:00 AND 30-SEP-2010:00:00:00 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, G140L, G160M, G185M ------------------------------------------------------------------------------------------------------------------------------------ Target Names V-EPS-AUR ------------------------------------------------------------------------------------------------------------------------------------