Scientific Category is a required field. Science Keywords: Select from 2 to 5 items. Please specify your scheduling constraints or 'No Constraints' on all Observation forms. 0 Assigned ID: 1131 ----- Attempting Submission 1 (Wed Aug 19 13:46:36 GMT 2020) ----- Joint Chandra/HST FLASH level may be too high for this exposure or a long subexposure. See extended explanation in the diagnostic browser 0 ----- Attempting Submission 1 (Fri Aug 21 19:48:03 GMT 2020) ----- ----- Attempting Submission 2 (Wed Sep 30 01:21:49 GMT 2020) ----- FLASH level for F275W setup may be fine, as there are a few bright stars in the field and the galaxy should still be bright in NUV with strong SF (Galex, DES optical, MUSE IFU data). But I am happy to apply a FLASH setup if needed. Radio galaxy harassment caught in the act While AGN negative feedback on star formation has become a key ingredient on cosmic structure formation, the importance of AGN positive feedback, induced star formation from jet-cloud interaction, has also be realized. There are few direct examples of AGN positive feedback in the nearby universe. Recently, we have discovered potentially the closest example of AGN positive feedback in a nearby galaxy group where the radio jet of the central galaxy hits a spiral galaxy 154 kpc away in projection to trigger star formation at the side of interaction! As a rare and unique example important to study AGN positive feedback and SF conditions, we request a Chandra observation, along with joint time from VLA and HST, for the necessary multi-wavelength studies. We will observe NGC 3568 with three filters F275W, F475W and F814W in two orbits to study the young stellar population and its relation with the radio plasma of NGC 3557. F475W and F814W observations will be done in one orbit with ACS/WFC, while the F275W observation will be done in another orbit with WFC3/UVIS. The ACS data in two high-throughput filters allow detections of faint features (e.g., individual star cluster associations, dust) and a detailed color map of the galaxy to ~ 12 pc. The F275W data will add important information on the SF in the last several 10^7 years and the F275W - F475W color is a very good age indicator. n/a Galaxies 6 false false false false false false false SUPPORTED GALAXY EMISSION LINE NEBULA RADIO GALAXY SPIRAL STAR FORMING REGION YES J2000 J2000 WFC3/UVIS Imaging No No F275W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W POS-TARG DITHER 3.034 LINE false false 2 85.29 ACS-WFC-DITHER-LINE 1 false POS-TARG MOSAIC DITHER 2 2.4 WFC3-UVIS-MOS-DITH-LINE false true 0.119 3 85.754 POS-TARG WFC3-UVIS-MOS-DITH-LINE 33.606 2 false /tmp/OPVisit14136012168651752117.xml The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 16424 :visit-id "01" :proposal-version -1 :trans-version "20200619" :date "29-Sep-2020 21:17:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1136896 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16424 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16424 :visit-id "01" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2817 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) true 1 0 /tmp/OPVisit6245749101520690746.xml (Tic-Visit :proposal-id 16424 :visit-id "02" :proposal-version -1 :trans-version "20200619" :date "29-Sep-2020 21:17:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 866240 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16424 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16424 :visit-id "02" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2815 :al-overhead-at-end 127 :internal-dur-at-end 352 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) true 1 0