Results 71 to 80 of about 478 (147)

Cosmic Rays Masquerading as Hot CGM Gas: An Inverse-Compton Origin for Diffuse X-ray Emission in the Circumgalactic Medium

The Open Journal of Astrophysics
Observations from _ROSAT_ and _eROSITA_ have argued that Milky Way (MW), Andromeda, and lower-mass galaxies exhibit extended soft X-ray ($1\,$keV) diffuse halos out to radii $R\gtrsim 100\,$kpc in the circumgalactic medium (CGM).
Philip F. Hopkins, Eliot Quataert, Sam B. Ponnada, Emily Silich   +3 more
doaj   +1 more source

"Fermi" bubbles are bursting from our galaxy. Their origins remain a mystery. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source

How Early Could the Milky Way’s Disk Form?

The Astrophysical Journal
We investigate early, z > 3, galaxy formation in a cosmological zoom-in simulation of a close, early-forming Milky Way (MW) analog extracted from TNG50 simulation and resimulated with detailed modeling of cold interstellar medium (ISM) formation, coupled
Vadim A. Semenov, Charlie Conroy, Aaron Smith, Ewald Puchwein, Lars Hernquist   +4 more
doaj   +1 more source

The AGORA High-resolution Galaxy Simulations Comparison Project. V. Satellite Galaxy Populations in a Cosmological Zoom-in Simulation of a Milky Way–Mass Halo

The Astrophysical Journal
We analyze and compare the satellite halo populations at z ∼ 2 in the high-resolution cosmological zoom-in simulations of a 10 ^12 M _⊙ target halo ( z = 0 mass) carried out on eight widely used astrophysical simulation codes ( Art-I , Enzo , Ramses ...
Minyong Jung, Santi Roca-Fàbrega, Ji-hoon Kim, Anna Genina, Loic Hausammann, Hyeonyong Kim, Alessandro Lupi, Kentaro Nagamine, Johnny W. Powell, Yves Revaz, Ikkoh Shimizu, Héctor Velázquez, Daniel Ceverino, Joel R. Primack, Thomas R. Quinn, Clayton Strawn, Tom Abel, Avishai Dekel, Bili Dong, Boon Kiat Oh, Romain Teyssier, The AGORA Collaboration   +21 more
doaj   +1 more source

Dissipative Dark Substructure: The Consequences of Atomic Dark Matter on Milky Way Analog Subhalos

The Astrophysical Journal
Using cosmological hydrodynamical zoom-in simulations, we explore the properties of subhalos in Milky Way analogs that contain a subcomponent of atomic dark matter (ADM).
Caleb Gemmell, Sandip Roy, Xuejian Shen, David Curtin, Mariangela Lisanti, Norman Murray, Philip F. Hopkins   +6 more
doaj   +1 more source

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +1 more source

LAMA: LAMOST Medium-Resolution Spectral Analysis Pipeline

The Astrophysical Journal Supplement Series
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has obtained more than 23 million spectra, opening an unprecedented opportunity to study stellar physics, as well as the formation and evolution of our Milky Way.
Chun-qian Li, Jian-rong Shi, Hong-liang Yan, Zhong-rui Bai, Jiang-tao Wang, Ming-yi Ding   +5 more
doaj   +1 more source

NIHAO-RiNG: A Comparison of Simulated Disk Galaxies from GASOLINE and GIZMO

The Astrophysical Journal
We utilize the publicly available code GIZMO to re-simulate 12 galaxies selected from the Numerical Investigation of a Hundred Astronomical Object (NIHAO) simulation suite, which were run with the GASOLINE code, then compare their properties.
Hou-Zun Chen, Xi Kang, Andrea V. Macciò, Tobias Buck, Renyue Cen   +4 more
doaj   +1 more source

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

Nat Commun
Chen B, Li G, Yuan H, Xiang M, Zhou J, Chen P, Krause M, Coombs A.   +7 more
europepmc   +1 more source

Unitary Entities Are the True "Atoms". [PDF]

Entropy (Basel)
Jeynes C, Parker MC.
europepmc   +1 more source