Unsupported characters were found in Abstract and replaced with |*| Science Keywords: Select from 2 to 5 items. Science Keywords is a required field. Small GO Proposals are not allowed in Cycle 26 unless they are Joint Programs. US Admin CoI is a required field. Wavelength is a required field. Wavelength is a required field. 0 Assigned ID: 40 ----- Attempting Submission 1 (Thu Aug 02 13:15:51 GMT 2018) ----- Joint Chandra/HST Updated due to HST acquistion overhead changes. 289433990 ----- Attempting Submission 1 (Mon Sep 17 21:32:07 GMT 2018) ----- HST Phase II Proposal 15612 (Mrk1018_monitoring2019.apt) successfully submitted. Receipt: # 15612-1 ----- Attempting Submission 2 (Mon Sep 17 21:58:09 GMT 2018) ----- ----- Attempting Submission 3 (Thu Dec 13 21:44:08 GMT 2018) ----- X-ray and UV monitoring of the extraordinary changing-look AGN Mrk 1018 We propose two joint Chandra/HST observations (each 45 ks/3 orbits) of the changing-look AGN Mrk 1018. In 2015 our team discovered this highly unique AGN in which we are witnessing the ongoing transition process. Monitoring Mrk 1018 immediate behavior with a joint Chandra/HST observation twice in 2019 is urgently needed and will leverage our extensive multi-wavelength monitoring program built up in the last 4 years. With the proposed data we will study how the X-ray emitting corona and the UV emitting accretion disk respond to the ongoing changes in the accretion rate. The joint X-ray/UV data are also needed to track the evolution of the wavelength-dependent SED (in combination with other wavelength ranges), as well as to understand why Mrk 1018 repeatedly changes its luminosity output. These COS-FUV observations are part of a coordinated multi-wavelength monitoring program combining X-rays (Chandra) and optical observations of the changing-look AGN Mrk1018. Each epoch we obtain a 3 orbit long FUV spectrum with the G140L grating to cover the FUV continuum at high S/N as well as the flux and shape of broad emission lines such as Lya and CIV. Massive Black Holes And Their Host Galaxies 6 false false false false false false false SUPPORTED GALAXY SEYFERT NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 COS/FUV Spectroscopic No No G140L COS/FUV Spectroscopic No No G140L The scheduling data was generated by CASM 26.2.2. CASM was run in Phase II mode. /tmp/OPVisit1181010207445463672.xml (Tic-Visit :proposal-id 15612 :visit-id "01" :proposal-version -1 :trans-version "20181130" :date "13-Dec-2018 22:35:06.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 495824 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15612 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15612 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2744 :al-overhead-at-end 0 :internal-dur-at-end 105 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3077 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15612 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2775 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3077 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15612 :visit-id "01" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2775 :al-overhead-at-end 0 :internal-dur-at-end 417 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3077 :pcs-gap 0 ) true 3 0 The scheduling data was generated by CASM 26.2.2. CASM was run in Phase II mode. /tmp/OPVisit6902244153677555733.xml (Tic-Visit :proposal-id 15612 :visit-id "02" :proposal-version -1 :trans-version "20181130" :date "13-Dec-2018 22:34:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 478416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15612 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15612 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2640 :al-overhead-at-end 0 :internal-dur-at-end 105 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2973 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15612 :visit-id "02" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2671 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2973 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15612 :visit-id "02" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2661 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2973 :pcs-gap 0 ) true 3 0