ULTIMATE-Subaru Mee0ng 15-16 Jan 2018 NAOJ, Mitaka Blair Conn RSAA
RSAA Research Interests • Brent Groves – Using ULTIMATE to access high-z galaxies for line mapping. • Rob Sharp – Using ULTIMATE’s high resolu0on imaging to inves0gate distant galaxy clusters • Blair Conn – Probing the cores of ultra-faint dwarf galaxies.
Brent Groves Subaru MOIFS • Quick leap through possible projects with MOIFS • Assume here • ULTIMATE • MOIRCS spectrograph (ie 0.8 - 2.0 m, R~3000) • Starbug system with 61 (37) fibres with 0.2” diameter Croom et al. (2012) Brent Groves
Brent Groves Nearby Universe • Using IFS to map out HII regions, diffuse ionized gas • can map extinction, local metallicity variations • eg PPaK in M31, MUSE of nearby galaxies Kapala, BG, et al. (2015) GALEX FUV H α MIPS 24 μ m H α Brent Groves
Brent Groves Nearby Universe • Using IFS to map out HII regions, diffuse ionized gas • can map extinction, local metallicity variations • Can do the same using eg Paschen α on individual HII regions in nearby galaxies • Using the combination of high-res optical MOS and near-IR high spatial ULTIMATE/MOIFS we can measure shape, central star, and ionisation structure of individual HII regions in nearby galaxies Brent Groves
Brent Groves Small to Large • SAMI has mapped the greater extent of galaxies at z=0.02 - 0.06 • A fraction show clear AGN contribution to the ionization (including a few Type I AGN with BLR • Subaru MOIFS/Ultimate could measure the AGN at the centre & 238358 Ionisation and outflows • For a subset we could even map the galaxy using a stepping pattern with MOIFS and trace the ionisation cones Kreckel, BG, et al. (2013) Brent Groves
Brent Groves and to Distant Galaxies • On distant clusters ( HSC 2 ?), Subaru Ultimate/MOIFS could: • map rotation & kinematics of cluster galaxies • map SFR & metallicities across galaxy disks (eg Schaefer et al (2016) • map lensed galaxies for even higher spatial resolution of most distant galaxies Kewley et al. (2016) Yuan et al. (2014) Brent Groves
Brent Groves The Ultimate possibilities of MOIFS • By combining Subaru’s sensitivity with the resolution possible with Ultimate, a MOIFS provides endless possibilities to: • map the structure of nearby star formation regions in unprecedented detail • classify individual stars in clusters in nearby galaxies • probe the inner workings of AGN across large samples • map the SFR in distant cluster members tracing the evolution of ionisation and gas towards the cluster centres Brent Groves
Rob Sharp
Rob Sharp K/I ~ 3.1, Gemini/HST ~ 3.3, GMT/JWST ~ 3.8 z = 1.067 galaxy cluster SPT-CL J0546-5345, Brodwin et al. (2010) Gemini/GeMS guaranteed time: Sweet, Sharp, McGregor et al. (2017) • Determine the stellar mass-size rela0on for 49 galaxies • AO is necessary to accurately characterize the size of compact z~1 galaxies With 8m AO, we will access only the very brightest source and basic structural parameters
Blair Conn
Blair Conn
Blair Conn RGB img EriIII Radial False-Color 6 Profile EriIII 5 4 Image 3 2 ) 2 star density (N/arcmin On-sky distribution 100 6 5 N EriIII 4 2 3 2 Exponential King Foreground 10 1 N ∆ δ ( arcmin ) 5 6 7 2 3 4 5 6 7 2 E 15" 0.1 1 1.739’ x 1.587’ Powered by Aladin r e (arcmin) Luminosity 40 0 E Function Number of stars per 0.2 mag bin 30 -1 20 -2 10 -2 -1 0 1 2 ∆ α ( arcmin ) 21.0 22.0 23.0 24.0 25.0 26.0 27.0 g o (mag) 14 13.5 1.0 13 cummulative distribution 12.5 0.8 12 11.5 age (Gyr) 11 0.6 10.5 10 0.4 9.5 9 Age/Metallicity 24-25mag 8.5 0.2 25-26mag 8 26-27mag 7.5 0.0 7 -2.5 -2.3 -2.1 -1.9 -1.7 -1.5 -1.3 -1.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 radius (arcmin) [Fe/H] Color-Magnitude Diagram Mass Left: Core, Right:Field Segregation?
Conclusion • RSAA has a variety of scien0fic goals and interests regarding ULTIMATE – Detailed studies of nearby galaxies – Extending current survey approaches into the high-z domain – Probing the cores of the smallest galaxies • This talk showcases only a small subset of the RSAA interest. • Thanks again to the Organizers of this mee0ng for this opportunity to par0cipate.
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