5 papers
Kinematics of Circumgalactic O VI Gas and Disk Rotation of Star-forming Galaxies
Stephanie H. Ho, Crystal L. Martin, Hasti Nateghi +2
Quasar sightline observations reveal that low-ionization-state gas corotates with the galaxy disk and often at sub-centrifugal velocities, suggesting that the gas is spiraling towa…
Signatures of gas flows-II: Connecting the kinematics of the multiphase circumgalactic medium to galaxy rotation
Hasti Nateghi, Glenn G. Kacprzak, Nikole M. Nielsen +4
The multiphase CGM hosts critical processes that affect galaxy evolution such as accretion and outflows. We searched for evidence of these phenomena by using the EW co-rotation fra…
Gravitational Lensing Reveals Cool Gas within 10-20 kpc around a Quiescent Galaxy
Tania M. Barone, Glenn G. Kacprzak, James W. Nightingale +12
While quiescent galaxies have comparable amounts of cool gas in their outer circumgalactic medium (CGM) compared to star-forming galaxies, they have significantly less interstellar…
Signatures of gas flows-I: Connecting the kinematics of the HI circumgalactic medium to galaxy rotation
Hasti Nateghi, Glenn G. Kacprzak, Nikole M. Nielsen +5
The CGM hosts many physical processes with different kinematic signatures that affect galaxy evolution. We address the CGM-galaxy kinematic connection by quantifying the fraction o…
Unveiling the Complex Circumgalactic Medium: A Comparative Study of Merging and Non-Interacting Galaxy Groups
Antonia Fernandez-Figueroa, Glenn G. Kacprzak, Nikole M. Nielsen +5
While most galaxies live in group environments where they undergo an accelerated evolution, the characteristics of their circumgalactic medium (CGM) remain uncertain. We present an…