16062( 4) - 28-Apr-2020 16:00:45 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16062 Version: 4 Check-in Time: 28-Apr-2020 16:00:45 STScI Edit Number: 1 Title Quasi-Periodic Eruptions (QPEs) in GSN 069 ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Giovanni Miniutti Centro de Astrobiologia (CSIC/INTA) Inst. Y Nac. de Tec. Aero. CoI: Richard Saxton European Space Agency - ESTEC N CoI: Dr. Margherita Giustini European Space Agency - ESTEC N CoI: Dr. Ari Laor Technion-Israel Institute of Technology N CoI: Prof. Stefano Bianchi Universita' degli Studi Roma Tre N CoI: Dr. Andrew Read University of Leicester N CoI: Dr. Kate Denham Alexander Northwestern University N CoI: Dr. Phil Uttley Universiteit van Amsterdam N CoI: Dr. Marco Chiaberge Space Telescope Science Institute - ESA Y ------------------------------------------------------------------------------------ Abstract We have recently reported on the discovery of a new X-ray variability pattern from the nucleus of the galaxy GSN~069, dubbed as Quasi-Periodic Eruptions, or QPEs (Miniutti et al. 2019, Nature, 573, 381). We propose here for further XMM-Newton observations to better characterize this newly-discovered variability pattern. Ideally, our observations will be complemented with 2 HST orbits with the goals of: i) deriving the optical to X-ray SED of GSN~069; ii) search for possible blue point sources other than the galactic nucleus in comparison with our Chandra data; iii) study the morphology of the poorly known host galaxy; iv) study the spatially-resolved structure of the narrow-line-region in [O~III]. ------------------------------------------------------------------------------------ Observations Description ------------------------ We ask for exposures with the following camera/filters: i) ACS/SBC exposures in the FUV with lters 140LP and 165LP (the second needed to get rid of red leaks) to look for potentially blue sources other than the nucleus, and to contribute to build the SED of GSN 069, in this case in the FUV; ii) ACS/WFC with lter F606W for spatially- resolved imaging of the host galaxy and to look for possible disturbances/merger; iii) ACS/WFC with filters FR647M (continuum) and FR505N (for the [O III] region) to search for signatures of recurrent/intermittent nuclear activity reflected in the narrow line region spatially-resolved structure (e.g. rings/arcs). The HST observations should be scheduled quasi-simultaneously with the XMM observations (within a few weeks). At the time the phase 2 is submitted, we only know that the XMM observations could be scheduled between May 30 2020 and July 17 2020. We temporarily set the 16062( 4) - 28-Apr-2020 16:00:45 - [ 2] BETWEEN dates accordingly and we will update them when the XMM schedule is made public, if needed. Visit 1 and 2 should be grouped within about 5 days but the order does not matter. ------------------------------------------------------------------------------------ 16062( 4) - 28-Apr-2020 16:00:45 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GSN069 GALAXY, SEYFERT RA=01H19M8.6600S, J2000 V = 17.0 DEC=-34D11'30.52" Reference Frame: ICRS Extended: YES Comments: Galaxy magnitude from Gaia ------------------------------------------------------------------------------------------------------------------------------------ 16062( 4) - 28-Apr-2020 16:00:45 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.472 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 44.4 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 3.034 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.29 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 16062( 4) - 28-Apr-2020 16:00:45 - [ 5] Visit: 01 Visit Requirements: SCHED 100% 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 GSN069 ACS/SBC ACCUM SBC F140LP 1 500 S PATTERN 1 1-2 (1000 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GSN069 ACS/SBC ACCUM SBC F165LP 1 500 S (1000 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 | ------------------------------------------------------------------------------------------------------------------------------------ GSN069 1 ACS/SBC ACCUM SBC F140LP 1 none none none 1 N/A GSN069 1 ACS/SBC ACCUM SBC F140LP 2 none none none 1 N/A GSN069 2 ACS/SBC ACCUM SBC F165LP 1 none none none 1 N/A GSN069 2 ACS/SBC ACCUM SBC F165LP 2 none none none 1 N/A 16062( 4) - 28-Apr-2020 16:00:45 - [ 6] Visit: 02 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 GSN069 ACS/WFC ACCUM WFC1-MRAM FR505N 5099.4 1 350 S (700 PATTERN 2 1 PQ S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GSN069 ACS/WFC ACCUM WFC1-IRAM FR647M 5757.0 1 80 S (160 PATTERN 2 2 PQ S) ------------------------------------------------------------------------------------------------------------------------------------ 3 GSN069 ACS/WFC ACCUM WFC-FIX F606W 1 400 S (800 PATTERN 2 3 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 | ------------------------------------------------------------------------------------------------------------------------------------ GSN069 1 ACS/WFC ACCUM WFC1-MRA FR505N 5099. 1 none none none 1 N/A MPQ 4 GSN069 1 ACS/WFC ACCUM WFC1-MRA FR505N 5099. 2 none none none 1 N/A MPQ 4 GSN069 2 ACS/WFC ACCUM WFC1-IRA FR647M 5757. 1 none none none 1 N/A MPQ 0 GSN069 2 ACS/WFC ACCUM WFC1-IRA FR647M 5757. 2 none none none 1 N/A MPQ 0 GSN069 3 ACS/WFC ACCUM WFC-FIX F606W 1 none none none 1 N/A GSN069 3 ACS/WFC ACCUM WFC-FIX F606W 2 none none none 1 N/A 16062( 4) - 28-Apr-2020 16:00:45 - [ 7] Summary Form for Proposal 16062 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC, WFC-FIX, WFC1-IRAMPQ, WFC1-MRAMPQ ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1-2, PATTERN 2 1, PATTERN 2 2, PATTERN 2 3, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F140LP, F165LP, F606W, FR505N, FR647M ------------------------------------------------------------------------------------------------------------------------------------ Target Names GSN069 ------------------------------------------------------------------------------------------------------------------------------------