Results 81 to 90 of about 1,565,970 (180)

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

CloudFlex: Modeling the Small-Scale Circumgalactic Medium

<p>CloudFlex is an open-source Python package for modeling the observational signatures associated with the small-scale structure of the circumgalactic medium.
Rubin, Kate, Schneider, Evan, Hummels, Cameron, Fielding, Drummond   +3 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

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

Stellar Mass–Dispersion Measure Correlations Constrain Baryonic Feedback in Fast Radio Burst Host Galaxies

The Astrophysical Journal Letters
Low-redshift fast radio bursts (FRBs) enable robust measurements of the host galaxy contribution to the dispersion measure (DM), offering valuable constraints on the circumgalactic medium (CGM) of FRB hosts.
Calvin Leung, Sunil Simha, Isabel Medlock, Daisuke Nagai, Kiyoshi W. Masui, Lordrick A. Kahinga, Adam E. Lanman, Shion Andrew, Kevin Bandura, Alice P. Curtin, B. M. Gaensler, Nina Gusinskaia, Ronniy C. Joseph, Mattias Lazda, Lluis Mas-Ribas, Bradley W. Meyers, Kenzie Nimmo, Aaron B. Pearlman, J. Xavier Prochaska, Mawson W. Sammons, Kaitlyn Shin, Kendrick Smith, Haochen Wang, (CHIME/FRB Collaboration)   +23 more
doaj   +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

On the Origin of the 107 K Hot Emitting Gas in the Circumgalactic Medium of the Milky Way

The Astrophysical Journal
The presence of the ≈10 ^6 K gas in the circumgalactic medium of the Milky Way (MW) has been well established. However, the location and the origin of the newly discovered hot gas at “supervirial (SV)” temperatures of ≈10 ^7 K have been puzzling.
Mukesh Singh Bisht, Biman B. Nath, Smita Mathur   +2 more
doaj   +1 more source

The Circumgalactic Medium with Local Universe Fast Radio Bursts: Evidence of Strong Active Galactic Nucleus Feedback in a Massive Elliptical Galaxy

The Astrophysical Journal Letters
Modern cosmology and galaxy formation rely on an understanding of how cosmic baryons are distributed, a significant portion of which exists in the diffuse gas confined to halos. Fast radio bursts (FRBs) are a promising probe of the Universe’s ionized gas.
Samuel McCarty, Liam Connor, Ralf M. Konietzka   +2 more
doaj   +1 more source

Dual-disk galaxies and thermal states of circumgalactic medium

The Open Journal of Astrophysics
Disk galaxies often have dual-disk structures composed of thin disks and thick disks. Recent observations reveal that such duality is ubiquitous across broad galaxy mass and cosmic time.
Masafumi Noguchi
doaj   +1 more source