Results 221 to 230 of about 2,374,498 (256)

A Deep Search for Diffuse Interstellar Band 4430Å in the Circumgalactic Medium

Monthly notices of the Royal Astronomical Society
We investigate the absorption signals of one of the strongest diffuse interstellar bands, DIBλ4430, in the circumgalactic medium (CGM) traced by MgII absorption lines. To this end, we make use of approximately 60,000 MgII absorption line spectra within
Chih-Yuan Chang, T. Lan
semanticscholar   +1 more source

Circumgalactic Medium Cloud Sizes from Refractive Fast Radio Burst Scattering

Astrophysical Journal
We explore constraints on the size of cool gas clouds in the circumgalactic medium (CGM) obtainable from the presence, or lack thereof, of refractive scattering in fast radio bursts (FRBs).
L. Mas-Ribas, M. McQuinn, J. X. Prochaska   +2 more
semanticscholar   +1 more source

Marvelous Metals: Surveying the Circumgalactic Medium of Simulated Dwarf Galaxies

Astrophysical Journal
Dwarf galaxies are uniquely sensitive to feedback processes and known to experience substantial mass and metal loss from their disks.
Daniel R. Piacitelli, Alyson M. Brooks, C. Christensen, N. Sanchez, Y. Faerman, S. Shen, Akaxia Cruz, Ben Keller, Thomas R. Quinn, J. Wadsley   +9 more
semanticscholar   +1 more source

ARCHITECTS I: Impact of subgrid physics on the simulated properties of the circumgalactic medium

Monthly notices of the Royal Astronomical Society
Galaxy evolution is shaped by star formation and stellar feedback at scales unresolved by current high-resolution cosmological simulations. Precise subgrid models are thus necessary, and different approaches have been developed.
Maxime Rey, J. Blaizot, T. Kimm, J. Rosdahl, L. Michel-Dansac   +4 more
semanticscholar   +1 more source

Non-equilibrium ionization in the multiphase circumgalactic medium – impact on quasar absorption-line analyses

The Open Journal of Astrophysics
This paper presents an updated framework for studying the ionizing conditions and elemental abundances of photoionized, metal-enriched quasar absorption systems.
Suyash Kumar, Hsiao-Wen Chen
semanticscholar   +1 more source

JWST Discovery of Warm Dust in the Circumgalactic Medium of the Makani Galaxy

Astrophysical Journal
We report the detection of near- and mid-infrared emission from polycyclic aromatic hydrocarbons (PAHs) out to ∼35 kpc in the Makani Galaxy, a compact massive galaxy with a record-breaking 100 kpc scale starburst-driven wind at redshift z = 0.459.
S. Veilleux, Steven D. Shockley, Marcio Melendez, D. Rupke, A. Coil, A. Diamond-Stanic, J. E. Geach, R. Hickox, J. Moustakas, Gregory H. Rudnick, P. Sell, Christy A. Tremonti, Hojoon Cha   +12 more
semanticscholar   +1 more source

JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium

Astronomy & Astrophysics
We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters.
J. Chastenet, I. D. Looze, M. Relaño, Daniel A. Dale, T. Williams, Simone Bianchi, E. Xilouris, M. Baes, A. Bolatto, Martha L. Boyer, V. Casasola, Christopher J. R. Clark, F. Fraternali, J. Fritz, F. Galliano, S. Glover, Karl D. Gordon, Hiroyuki Hirashita, R. Kennicutt, K. Nagamine, F. Kirchschlager, R. Klessen, E. Koch, R. Levy, Lewis McCallum, Suzanne C. Madden, A. F. McLeod, S. Meidt, A. Mosenkov, Helena M. Richie, A. Saintonge, Karin M. Sandstrom, Evan E. Schneider, Evgenia E. Sivkova, J. D. Smith, Matthew W. L. Smith, A. V. D. Wel, S. Walch, Fabian Walter, Kenneth Wood   +39 more
semanticscholar   +1 more source

Zooming in on the circumgalactic medium with GIBLE: Tracing the origin and evolution of cold clouds

Astronomy & Astrophysics
We used the GIBLE suite of cosmological zoom-in simulations of Milky Way-like galaxies with additional super-Lagrangian refinement in the circumgalactic medium (CGM) to quantify the origin and evolution of CGM cold gas clouds.
Rahul Ramesh, Dylan Nelson, D. Fielding, M. Bruggen   +3 more
semanticscholar   +1 more source

KBSS-InCLOSE. I. Design and First Results from the Inner Circumgalactic Medium of QSO Line-of-sight Emitting Galaxies at z ∼ 2–3

Astrophysical Journal
We present the design and first results of the inner circumgalactic medium (CGM) of QSO line-of-sight emitting galaxies at z ∼ 2–3, Keck Baryonic Structure Survey (KBSS)-InCLOSE.
E. H. Nuñez, C. Steidel, Evan N. Kirby, G. Rudie, N. Prusinski, Yuguang Chen, Z. Zhuang, A. Strom, D. Erb, M. Pettini, Louise Welsh, D. Rupke, Ryan J. Cooke   +12 more
semanticscholar   +1 more source

Cooling Flows as a Reference Solution for the Hot Circumgalactic Medium

Monthly notices of the Royal Astronomical Society
The circumgalactic medium (CGM) in ≳ 1012 M⊙ halos is dominated by a hot phase (T ≳ 106 K). While many models exist for the hot gas structure, there is as yet no consensus.
Imran Sultan, C. Faucher-Giguére, Jonathan Stern, Shaked Rotshtein, Lindsey Byrne, N. Wijers   +5 more
semanticscholar   +1 more source