Results 121 to 130 of about 1,426,420 (265)

ABSTRACTS

open access: yes
Precision Radiation Oncology, EarlyView.
wiley   +1 more source

The Hot and Energetic Universe:The evolution of galaxy groups and clusters [PDF]

open access: yes, 2013
Major astrophysical questions related to the formation and evolution of structures, and more specifically of galaxy groups and clusters, will still be open in the coming decade and beyond: what is the interplay of galaxy, supermassive black hole, and ...
Bourdin, H.   +47 more
core  

Search for Slow Bars in Two Barred Galaxies with Nuclear Structures: NGC 6951 and NGC 7716

open access: yesThe Astrophysical Journal
We investigate two barred galaxies with nuclear structures, NGC 6951 and NGC 7716, to examine whether they host slow bars. Using Gemini/GMOS long-slit spectroscopy, we calculate the bar pattern speed with the Tremaine–Weinberg method and detect ...
Yun Hee Lee   +11 more
doaj   +1 more source

Space physiology: Challenges and solutions for a journey to Mars

open access: yes
Experimental Physiology, Volume 111, Issue 9, Page 3863-3869, 1 September 2026.
Damian M. Bailey
wiley   +1 more source

Characterization of a Cyclic Nucleotide-Activated K+ Channel and its Lipid Environment by Using Solid-State NMR Spectroscopy [PDF]

open access: yes, 2013
Voltage-gated ion channels are large tetrameric multidomain membrane proteins that play crucial roles in various cellular transduction pathways. Because of their large size and domain-related mobility, structural characterization has proved challenging ...
NMR Spectroscopy   +3 more
core   +1 more source

The Cosmic Owl: Twin Active Collisional Ring Galaxies with Starburst Merging Front at z = 1.14

open access: yesThe Astrophysical Journal
Galaxy mergers play a critical role in driving galaxy evolution, especially by transforming galaxy morphology, redistributing gas around galaxies, triggering active galactic nuclei (AGN), and stimulating star formation.
Mingyu Li   +14 more
doaj   +1 more source

An Imaging and Spectroscopic Exploration of the Dusty Compact Obscured Nucleus Galaxy Zw 049.057

open access: yesThe Astrophysical Journal Supplement Series
Zw 049.057 is a moderate-mass, dusty, early-type galaxy that hosts a powerful compact obscured nucleus (CON, L _FIR,CON ≥ 10 ^11 L _⊙ ). The resolution of the Hubble Space Telescope enabled measurements of the stellar light distribution and ...
J. S. Gallagher   +11 more
doaj   +1 more source

VLT Spectroscopy of Globular Clusters in the Sombrero Galaxy

open access: yes, 2006
We have obtained intermediate-resolution VLT spectroscopy of 75 globular cluster candidates around the Sa galaxy M104 (NGC4594). Fifty-seven candidates out to ~ 40 kpc in the halo of the galaxy were confirmed to be bona-fide globular clusters, 27 of which are new.
Held, Enrico V.   +5 more
openaire   +3 more sources

Magellan Spectroscopy of Active Galactic Nuclei in Low-mass Galaxies: Scaling Relations and a Triple-peaked Active Galactic Nucleus

open access: yesThe Astrophysical Journal
In this work, we aim to further populate the low-mass regime of black hole (BH) scaling relations to better understand the formation and growth mechanisms of central supermassive BHs. We target six galaxies that have been previously identified as hosting
Megan R. Sturm   +3 more
doaj   +1 more source

Fresh Accretion Event in the Spiral Galaxy ESO 119-055

open access: yesThe Astronomical Journal
Through long-slit spectral observations of the early type disk galaxy ESO 119-055 and archival panoramic spectroscopy data, we studied the kinematics, excitation, and oxygen abundance of the ionized gas in the outer disk of the galaxy.
Olga K. Sil’chenko, Alexei Yu. Kniazev
doaj   +1 more source

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