0 Assigned ID: 1236 ----- Attempting Submission 1 (Sat Jan 18 01:03:06 GMT 2020) ----- ----- Attempting Submission 2 (Sat Jan 18 04:40:29 GMT 2020) ----- The list of Investigators does not match the STScI records for this program. INEFFICIENT ORDERING OF FP-POS POSITIONS INEFFICIENT ORDERING OF FP-POS POSITIONS 0 ----- Attempting Submission 1 (Thu Mar 19 16:34:42 GMT 2020) ----- HST Phase II Proposal 16071 successfully submitted. Receipt: # 16071-1 ----- Attempting Submission 2 (Thu Mar 26 00:00:21 GMT 2020) ----- HST Phase II Proposal 16071 successfully submitted. Receipt: # 16071-2 ----- Attempting Submission 3 (Thu Mar 26 13:52:35 GMT 2020) ----- I had written to the assigned PC about the warning related to orbit planned. They replied: "Typically, warnings are just trying to draw your attention to something which may be an issue but they do not need to be addressed. You will still be able to submit if the warning persists.” So, I am submitting the phase II proposal assuming that the overhead can not be decreased any further. I have added co-I after informing the PC. ALMA has revolutionized the study of reionization-era galaxies. With the launch of JWST just over one year way, it is crucial to establish a local reference sample of high-redshift "analog" galaxies covering essential UV, optical and FIR emission lines that will soon become available in the upcoming JWST+ALMA era. In doing so, we recently (Dec 2019) discovered that a local (z ~ 0.0039), metal-poor (12 + log(O/H) = 7.76) blue compact dwarf galaxy, Pox 186, exhibits not only extreme [OIII]88/[CII]158 but also an unpublished CIII]1908 equivalent width (~ 20 A) in its archival STIS spectrum (for which the CIII] was never published). This extreme CIII] is comparable to those observed in galaxies at redshifts of z ~ 6-7, when the reionization process is thought to be completed. We request mid-cycle time to obtain FUV and NUV COS spectroscopy for this galaxy, to obtain high S/N constraints on the UV emission lines, as it will allow us to complement a multi-wavelength initiative involving far-infrared and optical integral field spectroscopy. The proposed mid-cycle HST/COS observations will be very timely as they will inform proposals for the upcoming Cycle 1 deadline of JWST, targeted to explore the epoch of reionization. We propose to obtain good quality (S/N > 3) HST/COS spectra of Pox 186, the potentially most extreme local analogue of high-redshift (6{7) galaxies. We will use G160M/1623 and G185M/1913 to cover wavelength range of 1434-1796 A and 1797-2027 A, respectively, which will allow us to detect the key nebular and stellar features CIV 1548, 1550, He II 1640, O III] 1661, 1666, and C III] 1907, 1909 (Fig 3) which are ubiquitous at high redshifts. Moreover, spectral resolutions of G160M and G185M is sufficient to resolve the doublets mentioned above. The UV spectra were acquired previously with STIS/HST in 2000 but the S/N was too low for extracting reliable information from these spectra. COS is 10 times more sensitive than STIS in the FUV, and its spectral resolution is 25 times better than STIS (14 km s^-11 for G160 M compared to 360 km s^-11 for STIS), which will allow us to detect and resolve the required emission lines. Pox 186 is compact and unresolved in F336W, and thus is ideal to be observed by COS which is optimized for observing point sources. We used COS ETC to estimate the exposure times for spectroscopic observations and target acquisition as described below: We extracted the FUV and NUV spectra from the archival STIS observations (PID:8333) and used them in COS ETC for the G160M/1623 and G185M/1913 settings for FUV and NUV spectroscopy, respectively. We estimated the required exposure time for achieving S/N = 3 (per resolution element) at wavelengths of 1548 A and 1909 A for gratings G160M and and G185M/1913 settings for FUV and NUV spectroscopy, respectively. We estimated the required exposure time for achieving S/N = 3 (per resolution element) at wavelengths of 1548 A and 1909 A for gratings G160M and G185M, respectively. Similarly, using the STIS FUV and NUV spectra, we also estimated exposure time for obtaining the ACQ/Image using PSA/MirrorA for a recommended S/N = 20. We conservatively considered an HST orbit lasting 52 minutes minus overheads as suggested by the APT: guide star (re-)acquisition (5-6 min), target acquisition (5-6 min), and exposure overheads including FP-POS split (2-12 min). The above procedure resulted in 2 orbits for G160M and 5 orbits for G185M. The ETC reported no warnings for violations of the local and/or global bright object limits, so we expect the target to be safe to observe. The spectroscopic exposures in each pointing will be executed with FP-split to mitigate flatfielding uncertainties, remove grid wire residuals and improve S/N. The G160M and G185M have dispersions of 73.4 and 102 mA resolution element. We will estimate the approximate spectral resolution by fitting narrow Milky Way absorption features, which we will use to bin the reduced and extracted (via CALCOS pipeline) one dimensional spectra by averaging over the length of resolution elements (or multiple thereof) to achieve higher S/N per pixel. This will allow us to detect and analyse any weak spectral features. In total, we request for 7 orbits to obtain FUV and NUV spectra using HST/COS covering a wavelength range of 1434-2027 A for Pox 186. The team members possess extensive knowledge and scientific experitese that complement each stage of this investigation. Dr Kumari specialise in local analogues of high-z galaxies, and Dr Smit is an expert in high-z galaxies. Dr Kumari is also experienced in COS/UV spectroscopy and current a member of HST/COS instrument team at STScI. Dr Aloisi was the HST/COS team lead at the STScI from 2006-2013, i.e. even before the installation of COS in 2009. She has led several HST/COS observing campaigns, mainly involving the multi-phase gas in dwarf galaxies. Galaxies 0 false false true false true false false SUPPORTED GALAXY DWARF COMPACT NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 B = 17.93+/-0.53 COS/FUV Spectroscopic No No G160M 1623 COS/NUV Spectroscopic No No G185M 1913 1585179165734 /Users/kumari/Documents/apt_phaseII/OP-cache/PhaseII_multivisit-v01.xml The scheduling data was generated by CASM 28.0. CASM was run in Phase II mode. (Tic-Visit :proposal-id 16071 :visit-id "01" :proposal-version -1 :trans-version "20191203" :date "25-Mar-2020 19:32:45.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 87360 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16071 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16071 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2754 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16071 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2847 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 0 We notice that BOT/GSC reports a warning about exceeding the local count rate. However, when we ran ETC using already existing FUV and NUV spectra of this target, ETC reported no such warning. We also checked 21.5" arcsec field around the target in a HST/F336W image, which shows that the field does not have any other source other than our target. 1585179253794 /Users/kumari/Documents/apt_phaseII/OP-cache/PhaseII_multivisit-v02.xml The scheduling data was generated by CASM 28.0. CASM was run in Phase II mode. (Tic-Visit :proposal-id 16071 :visit-id "02" :proposal-version -1 :trans-version "20191203" :date "25-Mar-2020 19:34:13.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "32" :si-bright-earth-limb-angle 20.0 :data-volume 643776 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16071 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16071 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2756 :al-overhead-at-end 0 :internal-dur-at-end 57 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16071 :visit-id "02" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2847 :al-overhead-at-end 0 :internal-dur-at-end 86 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16071 :visit-id "02" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2847 :al-overhead-at-end 0 :internal-dur-at-end 86 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16071 :visit-id "02" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2847 :al-overhead-at-end 0 :internal-dur-at-end 86 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16071 :visit-id "02" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2847 :al-overhead-at-end 0 :internal-dur-at-end 379 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 5 0 We notice that BOT/GSC reports a warning about exceeding the local count rate. However, when we ran ETC using already existing FUV and NUV spectra of this target, ETC reported no such warning. We also checked 21.5" arcsec field around the target in a HST/F336W image, which shows that the field does not have any other source other than our target.