15354( 3) - 03-Jul-2018 15:48:06 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15354 Version: 3 Check-in Time: 03-Jul-2018 15:48:06 STScI Edit Number: 0 Title The fate of NGC602, an intense region of star-formation in the Wing of the SMC ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Elena Sabbi Space Telescope Science Institute Y CoI: Dr. Linda J. Smith Space Telescope Science Institute - ESA N CoI: Prof. Hugues Sana Space Telescope Science Institute - ESA N CoI: Dr. Roeland P. van der Marel Space Telescope Science Institute N CoI: Prof. Mark Gieles University of Surrey N CoI: Prof. John S. Gallagher III University of Wisconsin - Madison N CoI: Dr. Antonella Nota Space Telescope Science Institute - ESA N CoI: Christopher Johnson Space Telescope Science Institute Y CoI: Dr. Daniel J. Lennon ESA-European Space Astronomy Centre N CoI: Dr. Jay Anderson Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract This is a small 2 orbit proposal designed to measure the internal dynamics of NGC602, a small region of intense star formation in the Wing of the SMC, with a low gas and dust density that has been often considered an unfavorable place for star formation. Small regions of massive star formation are important to study for our understanding of the process of star and cluster formation, the ionization of the interstellar medium, and the injection of energy and momentum into their host galaxy. By combining our new observations with archival ACS/WFC data acquired in July 2004, we will be able to measure the relative proper motions of the NGC602 sub-structures better than 2.3 km/s and investigate the nature of the apparently isolated massive stars found around NGC602. This study will provide unique observational data to characterize the early phase of cluster evolution and test cluster formation theories. It will also address significant open issues in star formation, cluster dynamics and the origin of isolated supernovae and GRBs. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is an astrometric proposal aimed to measure proper motions in a massive star-forming region in the Small Magellanic Cloud. Observations are designed to duplicate data acquired in 2004 by Nota et al. in program GO-10248. In order to minimize uncertainties we ask to use exaclty the same orients and dither patterns used in Nota's program. ------------------------------------------------------------------------------------ 15354( 3) - 03-Jul-2018 15:48:06 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC602 STELLAR CLUSTER, OB RA=01H29M27.5700S +/- 0.1", J2000 V = 10.9 ASSOCIATION DEC=-73D33'17.14" +/- 0.1" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15354( 3) - 03-Jul-2018 15:48:06 - [ 3] Visit: 01 Visit Requirements: ORIENT 272.7D TO 272.7 D 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 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0, 1 3.0 S (3 FLASH=50 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0 1 430.0 S (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG 0.1736, 1.3805 (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG (430 S) 0.24800000000000003, 2.7276 ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG 0.4216, 4.082 (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC602 ACS/WFC ACCUM WFC F555W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG -0.1736, (430 S) -1.3552 ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0, 1 2.0 S (2 FLASH=50 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG -0.1736, (430 S) -1.3552 ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG 0.4216, 4.082 (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG (430 S) 0.24800000000000003, 2.7276 ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 430.0 S POS TARG 0.1736, 1.3805 (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC602 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 430.0 S (430 S) ------------------------------------------------------------------------------------------------------------------------------------ 15354( 3) - 03-Jul-2018 15:48:06 - [ 4] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC602 1 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 2 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 3 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 4 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 5 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 6 ACS/WFC ACCUM WFC F555W none none none none 1 N/A NGC602 7 ACS/WFC ACCUM WFC F814W none none none none 2 N/A NGC602 8 ACS/WFC ACCUM WFC F814W none none none none 2 N/A NGC602 9 ACS/WFC ACCUM WFC F814W none none none none 2 N/A NGC602 10 ACS/WFC ACCUM WFC F814W none none none none 2 N/A NGC602 11 ACS/WFC ACCUM WFC F814W none none none none 2 N/A NGC602 12 ACS/WFC ACCUM WFC F814W none none none none 2 N/A 15354( 3) - 03-Jul-2018 15:48:06 - [ 5] Summary Form for Proposal 15354 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, FLASH=50, GAIN=2.0 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 272.7D TO 272.7 D, POS TARG -0.1736, -1.3552, POS TARG 0.1736, 1.3805, POS TARG 0.24800000000000003, 2.7276, POS TARG 0.4216, 4.082 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC602 ------------------------------------------------------------------------------------------------------------------------------------