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On the CGM Fundamental Plane: The Halo Mass Dependency of Circumgalactic HI
Rongmon Bordoloi, J. Xavier Prochaska, Jason Tumlinson +3
We analyze the equivalent widths of HI Ly- () absorption from the inner (R < 160 kpc) circumgalactic medium (CGM) of 85 galaxies at with stellar masses …
The Sunburst Arc: Direct Lyman α escape observed in the brightest known lensed galaxy
T. Emil Rivera-Thorsen, Håkon Dahle, Max Gronke +6
We present rest-frame ultraviolet and optical spectroscopy of the brightest lensed galaxy yet discovered, at redshift z = 2.4. This source reveals a characteristic, triple-peaked L…
Feeding the fire: Tracing the mass-loading of 10^7 K galactic outflows with O VI absorption
J. Chisholm, R. Bordoloi, J. R. Rigby +1
Galactic outflows regulate the amount of gas galaxies convert into stars. However, it is difficult to measure the mass outflows remove because they span a large range of temperatur…
The Magellan Evolution of Galaxies Spectroscopic and Ultraviolet Reference Atlas (MEGaSaURA) II: Stacked Spectra
J. R. Rigby, M. B. Bayliss, J. Chisholm +8
We stack the rest-frame ultraviolet spectra of N=14 highly magnified gravitationally lensed galaxies at redshifts 1.6<z<3.6. The resulting new composite spans $900< λ_{rest} < 3000…
Spatially Resolved Patchy Lyman- Emission Within the Central Kiloparsec of a Strongly Lensed Quasar Host Galaxy at z = 2.8
Matthew B. Bayliss, Keren Sharon, Ayan Acharyya +10
We report the detection of extended Lyman- emission from the host galaxy of SDSS~J2222+2745, a strongly lensed quasar at . Spectroscopic follow-up clearly reveals exten…
COS-Burst: Observations of the Impact of Starburst-Driven Winds on the Properties of the Circum-Galactic Medium
Timothy Heckman, Sanchayeeta Borthakur, Vivienne Wild +2
We report on observations made with the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) using background QSOs to probe the circum-galactic medium (CGM) around…
Probing the Outflowing Multiphase Gas ~1 kpc Below the Galactic Center
Blair D. Savage, Tae-Sun Kim, Andrew J. Fox +8
Comparison of ISM absorption in the UV spectrum of LS 4825, a B1 Ib-II star d=21+/-5 kpc from the Sun toward l = 1.67 deg and b = -6.63 deg, with ISM absorption toward an aligned f…