14708( 2) - 18-Jul-2016 18:51:08 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14708 Version: 2 Check-in Time: 18-Jul-2016 18:51:08 STScI Edit Number: 0 Title Probing the circumgalactic medium of galaxies with deep observations. ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Smita Mathur The Ohio State University Y CoI: Dr. David Weinberg The Ohio State University N CoI: Dr. Yair Krongold Universidad Nacional Autonoma de Mexico N (UNAM) CoI: Dr. Anjali Gupta Columbus State Community College N CoI: Dr. Stephan Frank The Ohio State University N CoI: Dr. Fabrizo Nicastro Smithsonian Institution Astrophysical N Observatory ------------------------------------------------------------------------------------ Abstract The circumgalactic medium (CGM) of galaxies is critical for understanding galaxy formation and evolution, the interplay between feedback and accretion, recycling of metals, and an overall accounting of cosmic baryons. Several large, shallow HST surveys have provided a major step in this direction, finding extended, massive, metal bearing CGMs around star-forming galaxies. High ionization metal lines, such as OVI and NeVIII, are particularly useful to probe the warm-hot gas which is believed to contain most of the baryonic mass. However, these metal lines could be produced in the hot gas in collisional ionization equilibrium, or in cooler photoionized gas. This ambiguity can be resolved by using kinematic information. At the expected temperature of 300, 000K, the fraction of neutral hydrogen is small, but detectable and the Lyman alpha line is thermally broadened to about 75 km/s. Thus Broad Lyman Alpha (BLA) lines provide a useful tool to probe the hot gas, but detecting BLAs require high S/N spectra. We propose high S/N COS G160M observations of a carefully selected target to detect BLAs from CGMs of two galaxies to better understand the physics of the CGM. With the proposed deep observations we will directly measure the temperature, metallicity and mass of the warm-hot gas, providing valuable input to models of galaxy formation. Such deep observations are crucial to understand the results from shallow surveys that have used hundreds of HST orbits, but the investment of time is still modest. With the 25 orbits allocated to this program we will obtain S/N of about 25 at 1600 A. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will be observing our target for 25 HST orbits with COS/FUV G160M. Our goal is to detect broad, shallow, Ly alpha absorption. Our target has been observed with COS/160M beofre, for a shallow observation, so we know the overall spectral properties. Target acquision: From the previous COS observations, we know the precise 14708( 2) - 18-Jul-2016 18:51:08 - [ 2] coordinates of the target. Additionally, it's a SDSS target with precise coordinates. So we will use ACQ/Image with COS NUV/Mirror B. Science observations: We will obtain COS FUV G160M spectra to detect BLAs from two intervening galaxies. To cover the segments gaps, we will use two central wavelengths: 1577 and 1600. This will enable us to reach down to 1387 A, and cover OVI from one of the galaxies of interest. We will use recommended parameter of FLASH=Yes. Instead of FP-POS=ALL, we will use FP-POS=1, followed by FP-POS=2, followed by FP-POS=3, followed by FP-POS=4 in subsequent orbits. This should help increase the S/N. ------------------------------------------------------------------------------------ 14708( 2) - 18-Jul-2016 18:51:08 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 QSO-J1009+07 GALAXY, QSO, QUASAR RA=10H09M2.0698S +/- 0.1", J2000 Z = V = 17.27 13 DEC=+07D13'43.81" +/- 0.1" 0.456 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 14708( 2) - 18-Jul-2016 18:51:08 - [ 4] Visit: 01 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2323 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2927 S 713 G FP-POS=4 (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1577 none none none none 1 2323.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1577 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1577 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1577 none none none none 4 2927.0 S G QSO-J1009+0713 6 COS/FUV TIME-TA PSA G160M 1577 none none none none 5 N/A G 14708( 2) - 18-Jul-2016 18:51:08 - [ 5] Visit: 02 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2323 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1577 none none none none 1 2323.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1577 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1577 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1577 none none none none 4 2927.0 S G 14708( 2) - 18-Jul-2016 18:51:08 - [ 6] Visit: 03 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2323 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1577 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1577 none none none none 1 2323.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1577 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1577 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1577 none none none none 4 2927.0 S G 14708( 2) - 18-Jul-2016 18:51:08 - [ 7] Visit: 04 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2329 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 2329.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1600 none none none none 4 2927.0 S G 14708( 2) - 18-Jul-2016 18:51:08 - [ 8] Visit: 05 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2329 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 2329.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1600 none none none none 4 2927.0 S G 14708( 2) - 18-Jul-2016 18:51:08 - [ 9] Visit: 06 Visit Requirements: 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 QSO-J1009+0 COS/NUV ACQ/IMA PSA MIRRORB 1 100 S (100 713 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=1 see below (2329 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=2 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=3 see below (2927 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 QSO-J1009+0 COS/FUV TIME-TA PSA G160M 1600 FLASH=YES, BUFFER-TIME=9925, 1 2000 S 713 G FP-POS=4 see below (2927 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 | ------------------------------------------------------------------------------------------------------------------------------------ QSO-J1009+0713 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE QSO-J1009+0713 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 2329.0 S G QSO-J1009+0713 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 2927.0 S G QSO-J1009+0713 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 2927.0 S G QSO-J1009+0713 5 COS/FUV TIME-TA PSA G160M 1600 none none none none 4 2927.0 S G 14708( 2) - 18-Jul-2016 18:51:08 - [ 10] Summary Form for Proposal 14708 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=9925, FLASH=YES, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G160M, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names QSO-J1009+0713 ------------------------------------------------------------------------------------------------------------------------------------