16901( 2) - 12-Jan-2022 20:39:26 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16901 Version: 2 Check-in Time: 12-Jan-2022 20:39:26 STScI Edit Number: 0 Title The XUV environment of the young exoplanet HIP 67522b ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Antonio Maggio Osservatorio Astronomico di Palermo Y Giuseppe S. Vaiana CoI: Dr. Costanza Argiroffi Osservatorio Astronomico di Palermo N Giuseppe S. Vaiana CoI: Dr. Serena Benatti Osservatorio Astronomico di Palermo N Giuseppe S. Vaiana CoI: Prof. Giuseppina Micela Osservatorio Astronomico di Palermo N Giuseppe S. Vaiana CoI: Dr. Ignazio Pillitteri Osservatorio Astronomico di Palermo Y Giuseppe S. Vaiana ------------------------------------------------------------------------------------ Abstract We propose joint XMM-Newton and HST observations of the nearby young G- type star HIP 67522 Tau, hosting a close-in Jupiter- size transiting exoplanet discovered with TESS, and possibly a second smaller body. The first confirmed planet in this young system is expected to be in a contraction phase toward its final size and possible photoevaporation. Our immediate objective is to reconstruct the full XUV spectrum, and to assess the spectral and time variability of the host star. In this way we will characterize its activity level and the dose of high-energy irradiation in the planetary environment. This system is particularly compelling to investigate evolutionary paths of exo- planets in the mass-radius diagram, and to provide constraints for planetary atmospheres modeling. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a coordinated observation with XMM-Newton. We ask observations with HST/COS joint and simultaneous with XMM-Newton observations of the young G-type star HD . We aim to acquire high resolution spectra in the band 1180 - 1450 Angstrom with the G130M grating (central wavelength of 1291 Angstrom) during 3 HST orbits. The declination of the star ensures an average HST visibility of about 50' per orbit, available for science exposures. We intend to measure the intensity of ion lines from Si II, Si III, Si IV, CII , CIII, NV falling in the above wavelength range. ------------------------------------------------------------------------------------ 16901( 2) - 12-Jan-2022 20:39:26 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD-120411 STAR, EXTRA-SOLAR RA=13H50M6.2796S +/- 0.0507", J2000 V = 5.40 V = 9.8 +/- 0.03 PLANETARY SYSTEM, G DEC=-40D50'8.88" +/- 0.0503" V-IV, PRE-MAIN SEQUENCE STAR Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -0.002541505982966705 -0.022425000020120933 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 16901( 2) - 12-Jan-2022 20:39:26 - [ 3] Visit: 01 (Observation) Visit Requirements: 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD-120411 COS/NUV ACQ/IMA BOA MIRRORA 1 34 S (34 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-120411 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5600, FLASH=YES, 1 2300 S G FP-POS=3 see below (2464 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-120411 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5600, FLASH=YES, 1 2700 S G FP-POS=3 see below (2782 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-120411 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5600, FLASH=YES, 1 2700 S G FP-POS=4 see below (2782 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-120411 1 COS/NUV ACQ/IMA BOA MIRRORA none none none none 1 N/A GE HD-120411 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 2464.0 S G HD-120411 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 2782.0 S G HD-120411 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 2782.0 S G 16901( 2) - 12-Jan-2022 20:39:26 - [ 4] Summary Form for Proposal 16901 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures BOA, PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=5600, FLASH=YES, FP-POS=3, FP-POS=4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, MIRRORA ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD-120411 ------------------------------------------------------------------------------------------------------------------------------------