Results 91 to 100 of about 346,903 (248)

EBHIS Local Volume Galaxy Hi Survey (LVGHIS)

Astronomische Nachrichten, EarlyView.
ABSTRACT Here, we present the “Local Volume Galaxy Hi Survey” (LVGHIS). It is based on the first data release of the Milky Way portion of the Effelsberg Bonn Hi‐Survey (EBHIS). We homogeneously measured the mass and dynamics of the local volume galaxies within the radial velocity limit of |vLSR|≤600kms−1$$ \mid {v}_{\mathrm{LSR}}\mid \le 600\kern0.6em \
V. A. Schulz, J. Kerp, A. C. Schröder, B. Winkel   +3 more
wiley   +1 more source

Planetary nebulae as kinematic tracers of galaxy stellar halos

, 2016
The kinematic and dynamical properties of galaxy stellar halos are difficult to measure because of the faint surface brightness that characterizes these regions.
Lodovico Coccato
core   +1 more source

Stellar-to-halo mass relation of cluster galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
In the hierarchical formation model, galaxy clusters grow by accretion of smaller groups or isolated galaxies. During the infall into the centre of a cluster, the properties of accreted galaxies change. In particular, both observations and numerical simulations suggest that its dark matter halo is stripped by the tidal forces of the host. We use galaxy-
Pereira, Maria, Shan, Huanyuan, Niemiec, Anna, Jullo, Eric, Limousin, Marceau, Giocoli, Carlo, Erben, Thomas, Hildebrant, Hendrik, Kneib, Jean-Paul, Leauthaud, Alexie, Makler, Martin, Moraes, Bruno, Pereira, Maria, Shan, Huanyuan, Rozo, Eduardo, Rykoff, Eli, Van Waerbeke, Ludovic, Moraes, Bruno, Shan, Huanyuan, Rozo, Eduardo, Pereira, Maria, Leauthaud, Alexie, Hildebrant, Hendrik, Jullo, Eric, Rykoff, Eli, Erben, Thomas, Limousin, Marceau, Makler, Martin, Kneib, Jean-Paul, Van Waerbeke, Ludovic, Giocoli, Carlo, Niemiec, Anna   +31 more
openaire   +5 more sources

Analysis of Galaxies at the Extremes: Failed Galaxy Progenitors in the MAGNETICUM Simulations

The Open Journal of Astrophysics
There is increasing observational evidence for a “failed galaxy” formation pathway for ultra-diffuse galaxies (UDGs) at low redshift however they currently lack simulated counterparts.
Jonah S. Gannon, Lucas C. Kimmig, Duncan A. Forbes, Jean P. Brodie, Lucas M. Valenzuela, Rhea-Silvia Remus, Joel L. Pfeffer, Klaus Dolag   +7 more
doaj   +1 more source

First statistical constraints on galactic-scale outflow properties traced by their extended Mg II emission with MUSE

Astronomy & Astrophysics
Galaxies evolve within vast gaseous halos that fuel star formation and carry signatures of feedback-driven outflows. Deep integral field data have enabled the study of Mg IIλλ2796, 2803 halos, which trace galaxy-scale outflows in emission, and while ...
Pessa Ismael, Wisotzki Lutz, Urrutia Tanya, Bouché Nicolas F., Leclercq Floriane, Augustin Ramona, Guo Yucheng, Kozlova Daria, Kusakabe Haruka, Pharo John   +9 more
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Formation and Assembly History of Stellar Components in Galaxies as a Function of Stellar and Halo Mass [PDF]

The Astrophysical Journal, 2017
Abstract Galaxy mass assembly is an end product of structure formation in the ΛCDM cosmology. As an extension of Lee & Yi, we investigate the assembly history of stellar components in galaxies as a function of halo environments and stellar mass using semi-analytic approaches.
Jaehyun Lee, Sukyoung K. Yi
openaire   +2 more sources

The Impact of Galaxy-halo Size Relations on Galaxy Clustering Signals

The Open Journal of Astrophysics
Galaxies come in different sizes and morphologies, and these differences are thought to correlate with properties of their underlying dark matter halos.
Joshua B. Hill, Yao-Yuan Mao
doaj   +1 more source

The stellar-to-halo mass relation of central galaxies across three orders of halo mass

Astronomy & Astrophysics
The stellar content of galaxies is tightly connected to the mass and growth of their host dark matter halos. Observational constraints on this relation remain limited, particularly for low-mass groups, leaving uncertainties in how galaxies assemble their
Toptun Victoria, Popesso Paola, Marini Ilaria, Vladutescu-Zopp Stephan, Dolag Klaus, Behroozi Peter, Lovisari Lorenzo, Ettori Stefano, Biffi Veronica, Yang Xiaohu, de Isídio Natanael, Mazengo Daudi T.   +11 more
doaj   +1 more source

Validation of a novel instrumented hoof boot with pressure sensors using force plate gait kinetics in horses at walk and trot

Equine Veterinary Journal, EarlyView.
Abstract Background Force plates (FP) are considered the gold standard for quantitative equine gait evaluation but are limited to experimental use. An instrumented hoof boot (IHB) with pressure sensors and an inertial measurement unit would allow clinicians to objectively assess kinetic parameters and gait symmetry.
Jasmin Keller, Max J. Hassenstein, Klaus Jung, Florian Geburek   +3 more
wiley   +1 more source