14243( 13) - 19-Apr-2017 15:35:38 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14243 Version: 13 Check-in Time: 19-Apr-2017 15:35:38 STScI Edit Number: 6 Title True Jet Rotation Probed in NUV Jet Core ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Deirdre Coffey University College Dublin Y CoI: Dr. Francesca Bacciotti INAF, Osservatorio Astrofisico di Arcetri, N Firenze CoI: Dr. Linda Podio Osservatorio Astrofisico di Arcetri N ------------------------------------------------------------------------------------ Abstract Recent observations searching for jet rotation in newly forming stars have the potential to support theories of magneto-centrifugal jet launching. However, whether or not we can claim to observe jet rotation has been hotly debated. Past HST studies have revealed differences across the radial velocity profile of the jet close to the base, but subsequent observations and simulations suggest the outer layers of the jet may be disrupted by shocks or instabilities. On the other hand, the jet core, which is probed at NUV wavelengths, may be protected from these contaminations by the outer jet layers. This idea is supported so far by the fact that the NUV jet rotation direction matches the disk rotation direction in 2 of 2 cases examined. This seems to suggest that NUV data is the only real window on jet rotation, where the signature is not disrupted by other kinematic signatures that may be present in other wavelength regimes. Indeed IR IFU data reveal that the jet kinematics are not simple, and that IFU-style observations are critical in interpreting potential jet rotation signatures. Therefore, we propose STIS/MAMA observations to investigate the jet rotation signature of the jet core in 3 targets. We will map these observations to existing IFU and other data to aid interpretation. Targets are chosen because the sense of disk rotation is already known, and so we can have a definitive answer as to whether we have full agreement in jet and disk rotation sense for the NUV jet core. ------------------------------------------------------------------------------------ Observations Description ------------------------ We request observations on 3 jets: 1 from RY Tau and 2 from DG Tau B. The target is the jet, not the star. We request the STIS slit placed perpendicular to the jet propagation direction (jet PA), and offset from the star along the jet such that the starlight does not enter the slit. Please see fig 1 of this paper for a picture of the observing mode required: http://iopscience.iop.org/0004-637X/663/1/350/pdf/0004-637X_663_1_350.pdf For RY Tau, the blue jet is at PA=294 (E of N). The slit should be perpendicular to the jet PA. i.e. ORIENT = 294+45-90=249 or 294+45+90=69 The slit should then be offset from the star in the direction along the jet. 14243( 13) - 19-Apr-2017 15:35:38 - [ 2] i.e. POS TARG = (+0.4, 0.0) or POS TARG = (-0.4, 0.0), depending on the ORIENT value (which in turn depends on guide star availability). Note that DG Tau B is not optically visible. Hence DG Tau is used as a reference target, and an offset specified to reach DG Tau B. For DG Tau B, the blue jet is at PA=116 (McGroarty et al 2004, Fig 5) and hence the red jet is at PA=296. Guide star availability dictates ORIENT=71, and Aladdin jet emission dictates optimum POS TARG=+1.3" for the blue jet and -4.6" for the red jet. ------------------------------------------------------------------------------------ 14243( 13) - 19-Apr-2017 15:35:38 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 V-RY-TAU STAR, JET, T TAURI STAR RA=04H21M57.4100S, J2000 V = 9.3 DEC=+28D26'35.57" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 2 NAME-DG-TAU- STAR, JET, T TAURI STAR RA-OFF=-2.032S, DEC-OFF=-45.93", J2000 V = 9.3 J 14.576; H 12.932; K 11.594; B FROM 3 The star DG Tau B is completely obscured in the optical by its edge-on disk/flattened envelope. Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. V-Mag not available. Value inserted here to satisfy warnings of BOT requirement. Position w.r.t. DG TAU: RA-OFF=-2.032 s DEC-OFF=-45.93 " ------------------------------------------------------------------------------------------------------------------------------------ 3 V-DG-TAU STAR, T TAURI STAR RA=04H27M4.6980S, J2000 V = 10.5 DEC=+26D06'16.31" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 14243( 13) - 19-Apr-2017 15:35:38 - [ 4] Visit: 01 (RY Tau Blue Jet PA=294) Visit Requirements: ORIENT 249D TO 249 D On Hold Comments: Additional Comments: The slit should be perpendicular to the jet PA. i.e. ORIENT = 294+45-90=249 or 294+45+90=69 The slit should then be offset from the star in the direction along the jet. i.e. POS TARG = (+0.4, 0.0) or POS TARG = (-0.4, 0.0), depending on the ORIENT value (which in turn depends on guide star availability). 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 V-RY-TAU STIS/CCD ACQ F28X50LP MIRROR 1 0.1 S (0.1 GS ACQ SCENARIO BASE1B3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 V-RY-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2395 S POS TARG +0.4, 0.0 -MAMA (2395 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 4 V-RY-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 6 V-RY-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-RY-TAU 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A V-RY-TAU 2 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 1 N/A -MAMA WAVE 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 1 N/A -MAMA V-RY-TAU 4 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 2 N/A -MAMA WAVE 5 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 2 N/A -MAMA V-RY-TAU 6 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WAVE 7 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 6] Visit: 02 (DG Tau B - Blue Jet PA=116) Visit Requirements: ORIENT 71D TO 71 D On Hold Comments: Additional Comments: The slit should be perpendicular to the jet PA. i.e. ORIENT = 296+45-90=251 or 296+45+90=71 The slit should then be offset from the star in the direction along the jet. i.e. POS TARG = (-1.3, 0.0) or POS TARG = (+1.3, 0.0), depending on the ORIENT value (which in turn depends on guide star availability). 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 V-DG-TAU STIS/CCD ACQ F28X50LP MIRROR 1 0.1 S (0.1 GS ACQ SCENARIO BASE1B3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2395 S POS TARG +1.3, 0.0 -B -MAMA (2395 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 4 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -B -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 6 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -B -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-DG-TAU 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NAME-DG-TAU-B 2 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 1 N/A -MAMA WAVE 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 1 N/A -MAMA NAME-DG-TAU-B 4 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 2 N/A -MAMA WAVE 5 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 2 N/A -MAMA NAME-DG-TAU-B 6 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WAVE 7 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 8] Visit: 03 (DG Tau B - Red Jet PA=296) Visit Requirements: ORIENT 71D TO 71 D On Hold Comments: Additional Comments: The slit should be perpendicular to the jet PA. i.e. ORIENT = 296+45-90=251 or 296+45+90=71 The slit should then be offset from the star in the direction along the jet. i.e. POS TARG = (+4.6, 0.0) or POS TARG = (-4.6, 0.0), depending on the ORIENT value (which in turn depends on guide star availability). 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 V-DG-TAU STIS/CCD ACQ F28X50LP MIRROR 1 0.1 S (0.1 GS ACQ SCENARIO BASE1B3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2395 S POS TARG -5.0, 0.0 -B -MAMA (2395 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 4 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -B -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA S) ------------------------------------------------------------------------------------------------------------------------------------ 6 NAME-DG-TAU STIS/NUV ACCUM 6X0.2 E230M 2707 1 2929 S SAME POS AS 2 -B -MAMA (2929 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 20 S (20 -MAMA 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-DG-TAU 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NAME-DG-TAU-B 2 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 1 N/A -MAMA WAVE 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 1 N/A -MAMA NAME-DG-TAU-B 4 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 2 N/A -MAMA WAVE 5 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 2 N/A -MAMA NAME-DG-TAU-B 6 STIS/NUV ACCUM 6X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ WAVE 7 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 3 N/A -MAMA 14243( 13) - 19-Apr-2017 15:35:38 - [ 10] Summary Form for Proposal 14243 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.2, 6X0.2, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 249D TO 249 D, ORIENT 71D TO 71 D, POS TARG +0.4, 0.0, POS TARG +1.3, 0.0, POS TARG -5.0, 0.0, SAME POS AS 2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E230M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names NAME-DG-TAU-B, V-DG-TAU, V-RY-TAU, WAVE ------------------------------------------------------------------------------------------------------------------------------------