Results 81 to 90 of about 1,770 (180)

Figuring Out Gas & Galaxies in Enzo (FOGGIE). XV. Examining the Spatial and Kinematic Relationship between Circumgalactic Mg ii and O vi

The Astrophysical Journal
Understanding the thermodynamic properties of the circumgalactic medium (CGM) is key to uncovering the baryon cycle in galaxies. Here, we present spatial and kinematic relationships between Mg ii and O vi , as representatives for low- and high-ion ...
Mackenzie Ticoras, Brian W. O’Shea, Claire Kopenhafer, Cassandra Lochhaas, Molly S. Peeples, Jason Tumlinson, Cameron W. Trapp, Vida Saeedzadeh, Ramona Augustin, Nicolas Lehner, Britton D. Smith, J. Christopher Howk   +11 more
doaj   +1 more source

Characterizing the Circumgalactic Medium in Emission [PDF]

, 2015
In this thesis I focus on understanding the physical properties of extended Lyman-alpha emitting gas at high redshift, from the circumgalactic medium (CGM) and intergalactic medium (IGM). First, I investigate the physics of giant, luminous Lyman-alpha nebulae known as Lyman alpha blobs (LABs).
openaire   +2 more sources

The Cosmic Ultraviolet Baryon Survey (CUBS). IX. The Enriched Circumgalactic and Intergalactic Medium Around Star-forming Field Dwarf Galaxies Traced by O vi Absorption

The Astrophysical Journal
The shallow potential wells of star-forming dwarf galaxies make their surrounding circumgalactic and intergalactic medium (CGM/IGM) sensitive laboratories for studying the inflows and outflows thought to regulate galaxy evolution.
Nishant Mishra, Sean D. Johnson, Gwen C. Rudie, Hsiao-Wen Chen, Joop Schaye, Zhijie Qu, Fakhri S. Zahedy, Erin T. Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Claude-André Faucher-Giguére, Jenny E. Greene, Jennifer I-Hsiu Li, Zhuoqi (Will) Liu, Sebastian Lopez, Patrick Petitjean   +15 more
doaj   +1 more source

Impacts of the Metagalactic Ultraviolet Background on Circumgalactic Medium Absorption Systems

The Astrophysical Journal
Among the many different pieces of physics that go into simulations of the circumgalactic medium (CGM), the metagalactic ultraviolet background (UVB) plays a significant role in determining the ionization state of different metal species.
Elias Taira, Claire Kopenhafer, Brian W. O’Shea, Alexis Manning, Evelyn Fuhrman, Molly S. Peeples, Jason Tumlinson, Britton D. Smith   +7 more
doaj   +1 more source

The Impact of the Group Environment on the O vi Circumgalactic Medium

The Astrophysical Journal, 2017
Abstract We present a study comparing O vi λλ1031, 1037 doublet absorption found toward group galaxy environments to that of isolated galaxies. The O vi absorption in the circumgalactic medium (CGM) of isolated galaxies has been studied previously by the “Multiphase Galaxy Halos” survey, where the kinematics and ...
Stephanie K. Pointon, Nikole M. Nielsen, Glenn G. Kacprzak, Sowgat Muzahid, Christopher W. Churchill, Jane C. Charlton   +5 more
openaire   +5 more sources

Mapping the Circumgalactic Medium: Connecting Galaxies to their Environment

, 2022
Thesis (Ph.D.)--University of Washington, 2022The work presented in this dissertation provides the groundwork for understanding key unresolved questions in the study of galaxy evolution: the circumgalactic medium (CGM) and the role of environment.
Wilde, Matthew
core  

Abundance and temperature of the outer hot circumgalactic medium

, 2023
Context. Despite their vital importance to understanding galaxy evolution and our own Galactic ecosystem, our knowledge of the physical properties of the hot X-ray emitting phase of the Milky Way is still inadequate.
X. Zheng, Freyberg, M., G. Ponti, M. Freyberg, Y. Zhang, Reiprich, T., Sanders, J., Zheng, X., N. Locatelli, A. Merloni, Zhang, Y., T. H. Reiprich, J. Sanders, Dennerl, K., M. Sasaki, Locatelli, N., Comparat, J., Strong, A., M. Salvato, Merloni, A., F. Haberl, Salvato, M., Sasaki, M., Bianchi, S., Ponti, G., Haberl, F., M. C. H. Yeung, A. Strong, K. Anastasopoulou, S. Bianchi, Yeung, M., J. Comparat, K. Dennerl, Anastasopoulou, K.   +33 more
core   +1 more source

Turbulence driven by structure formation in the circumgalactic medium

, 2013
The injection of turbulence in the circumgalactic medium at redshift z = 2 is investigated using the mesh-based hydrodynamic code ENZO and a sub-grid-scale (SGS) model for unresolved turbulence. Radiative cooling and heating by a uniform Ultraviolet (UV)
Viel M, Viel M., Iapichino L., Iapichino L, Borgani S, Borgani S., Viel, Matteo, BORGANI, STEFANO   +7 more
core   +1 more source

Resolving Turbulence Drivers in Two Luminous Obscured Quasars with JWST/NIRSpec Integral Field Unit

The Astrophysical Journal Letters
In this Letter, we investigate the turbulence and energy injection in the extended nebulae surrounding two luminous obscured quasars, WISEA J100211.29+013706.7 ( z = 1.5933) and SDSS J165202.64+172852.3 ( z = 2.9489).
Mandy C. Chen, Hsiao-Wen Chen, Michael Rauch, Andrey Vayner, Weizhe Liu, David S. N. Rupke, Jenny E. Greene, Nadia L. Zakamska, Dominika Wylezalek, Guilin Liu, Sylvain Veilleux, Nicole P. H. Nesvadba, Caroline Bertemes   +12 more
doaj   +1 more source

Detection of diffuse HI emission in the circumgalactic medium of NGC891 and NGC4565 -- II

, 2023
We probe the neutral circumgalactic medium (CGM) along the major axes of NGC891 and NGC4565 in 21-cm emission out to $\gtrsim 100$kpc using the Green Bank Telescope (GBT), extending our previous minor axes observations.
Pisano, D. J., Das, Sanskriti, Leroy, Adam, Sardone, Amy, Pingel, Nickolas M., Heald, George, Rickel, Mary, Mathur, Smita, Kingsbury, Joshua   +8 more
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