15119( 3) - 19-Jul-2017 15:59:22 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15119 Version: 3 Check-in Time: 19-Jul-2017 15:59:22 STScI Edit Number: 1 Title Probing the young circumplanetary environment of Beta Pic b during transit egress ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Mr. Jason J. Wang University of California - Berkeley Y CoI: Dr. Paul George Kalas University of California - Berkeley N CoI: Dr. Kevin B. Stevenson Space Telescope Science Institute N CoI: Dr. James R. Graham University of California - Berkeley N CoI: Dr. Laurent Pueyo Space Telescope Science Institute N CoI: Dr. Robert John De Rosa University of California - Berkeley N CoI: Dr. Eric Nielsen SETI Institute N CoI: Dr. Nikole K Lewis Space Telescope Science Institute N CoI: Dr. Bruce A. Macintosh Stanford University N CoI: Maxwell Andrew Millar-Blanchaer Jet Propulsion Laboratory N CoI: Dr. S. Mark Ammons Lawrence Livermore National Laboratory N ------------------------------------------------------------------------------------ Abstract Among the thousands of known exoplanets, Beta Pic b is the only directly imaged exoplanet with a nearly edge-on orbit. We show that the latest astrometric measurements rule out a transit by the planet at 10-sigma significance, but we are certain that the Hill sphere of the planet will transit. With a period of ~22 years and no other system like it, this Hill sphere transit provides a rare opportunity to study the evolving circumplanetary environment of a young and well-characterized exoplanet. To compliment GO-14621, our Cycle 25 proposal to monitor the ingress of the Hill sphere, we propose a modest HST program to photometrically search for signatures of the planet's large scale circumplanetary material during the egress of the Hill sphere transit. The existence of such material is plausible given that Beta Pic's young age is similar to that of the ring-bearing J1407b system. Combined with GO-14621 and less-precise but dedicated ground-based monitoring, these observations will give us a comprehensive set of observations about this young circumplanetary environment. Given the sparse observational data of circumplanetary environments, non-detections will also be valuable for constraining the timescales relevant to circumplanetary material and moon formation. If photometric variations are detected with HST, these results would yield empirical information concerning the dynamics of the system and the evolution of planetary systems as a whole. ------------------------------------------------------------------------------------ Observations Description ------------------------ A search for signatures of Beta Pic b's large scale circumplanetary material. ------------------------------------------------------------------------------------ 15119( 3) - 19-Jul-2017 15:59:22 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 -BET-PIC STAR, A4-A9 V-IV, RA=05H47M17.0877S, J2000 V = 3.86 EXTRA-SOLAR PLANETARY DEC=-51D03'59.44" SYSTEM Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 15119( 3) - 19-Jul-2017 15:59:22 - [ 3] Visit: 04 (BetaPic-04-HalfHillEgress1) Visit Requirements: SCHED 30%; ORIENT 160D TO 185 D; ORIENT 200D TO 300 D; ORIENT 340D TO 5 D; ORIENT 20D TO 120 D; BETWEEN 30-SEP-2017:00:00:00 AND 17-OCT-2017:00:00:00 On Hold Comments: Additional Comments: This visit uses spatial scanning at a rate of 0.5 arcsec/sec. Scanning is in both the forward and reverse directions. This visit has broad timing and orientation requirements. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -BET-PIC WFC3/UVI ACCUM UVIS2-2K2 F953N BIN=NONE, CR-SPLIT=NO, 5 110 S POS TARG -15, -15; S C-SUB FLASH=12 (1100 S) SPATIAL SCAN 0.5, 3.7702 Degrees, Round trip; SEQ 1 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB 15119( 3) - 19-Jul-2017 15:59:22 - [ 4] Visit: 05 (BetaPic-05-HalfHillEgress2) Visit Requirements: SCHED 30%; ORIENT 160D TO 185 D; ORIENT 200D TO 300 D; ORIENT 340D TO 5 D; ORIENT 20D TO 120 D; AFTER 04 BY 7 D TO 21 D; BETWEEN 30-SEP-2017:00:00:00 AND 17-OCT-2017:00:00:00 On Hold Comments: Additional Comments: This visit uses spatial scanning at a rate of 0.5 arcsec/sec. Scanning is in both the forward and reverse directions. This visit has broad timing and orientation requirements. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -BET-PIC WFC3/UVI ACCUM UVIS2-2K2 F953N BIN=NONE, CR-SPLIT=NO, 5 110 S POS TARG -15, -15; S C-SUB FLASH=12 (1100 S) SPATIAL SCAN 0.5, 3.7702 Degrees, Round trip; SEQ 1 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB 15119( 3) - 19-Jul-2017 15:59:22 - [ 5] Visit: 06 (BetaPic-06-FullHillEgress) Visit Requirements: SCHED 30%; ORIENT 160D TO 185 D; ORIENT 200D TO 300 D; ORIENT 340D TO 5 D; ORIENT 20D TO 120 D; BETWEEN 23-NOV-2017:00:00:00 AND 10-DEC-2017:00:00:00 On Hold Comments: Additional Comments: This visit uses spatial scanning at a rate of 0.5 arcsec/sec. Scanning is in both the forward and reverse directions. This visit has broad timing and orientation requirements. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -BET-PIC WFC3/UVI ACCUM UVIS2-2K2 F953N BIN=NONE, CR-SPLIT=NO, 5 110 S POS TARG -15, -15; S C-SUB FLASH=12 (1100 S) SPATIAL SCAN 0.5, 3.7702 Degrees, Round trip; SEQ 1 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 1 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 2 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 3 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 4 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB -BET-PIC 1 WFC3/UVI ACCUM UVIS2-2K F953N none none 5 none 1 N/A S 2C-SUB 15119( 3) - 19-Jul-2017 15:59:22 - [ 6] Summary Form for Proposal 15119 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-2K2C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BIN=NONE, CR-SPLIT=NO, FLASH=12 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 04 BY 7 D TO 21 D, BETWEEN 23-NOV-2017:00:00:00 AND 10-DEC-2017:00:00:00, BETWEEN 30-SEP-2017:00:00:00 AND 17-OCT-2017:00:00:00, ORIENT 160D TO 185 D, ORIENT 200D TO 300 D, ORIENT 20D TO 120 D, ORIENT 340D TO 5 D, POS TARG -15, -15, SCHED 30%, SEQ 1 NON-INT, SPATIAL SCAN 0.5, 3.7702 Degrees, Round trip ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F953N ------------------------------------------------------------------------------------------------------------------------------------ Target Names -BET-PIC ------------------------------------------------------------------------------------------------------------------------------------