Results 281 to 290 of about 257,486 (317)

Impact of ultrasound settings on lung vertical artefacts: an observational study in mechanically ventilated patients. [PDF]

ERJ Open Res
Leote J, Gonçalves A, Fonseca J, Loução R, Dias H, Inês Ribeiro M, Meireles R, Varudo R, Bacariza J, Gonzalez F, EchoCrit group.   +10 more
europepmc   +1 more source

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Clumpy Substructures in Globular Cluster Tidal Tails

Celestial Mechanics and Dynamical Astronomy, 2005
The observational evidence of the interaction of globular clusters with the galactic tidal field is rapidly growing in the recent years. Some numerical works have investigated the complex phenomena related to the formation and evolution of clusters tidal tails and their orientation along the cluster orbit.
DI MATTEO, PAOLA, MIOCCHI, PAOLO, CAPUZZO DOLCETTA, Roberto Angelo   +2 more
openaire   +1 more source

Direct N-body simulations of NGC 6397 and its tidal tails

Monthly notices of the Royal Astronomical Society
We have performed a series of direct N-body simulations that study the evolution of the Galactic globular cluster NGC 6397 under the combined influence of two-body relaxation, stellar evolution and the Milky Way’s tidal field.
A. Arnold, H. Baumgardt
semanticscholar   +1 more source

Tidal tails of nearby open clusters. II. A review of simulated properties and the reliability of observational catalogues

Astronomy & Astrophysics
Recent studies using Gaia data have reported tidal tail detections for tens to hundreds of open clusters. However, a comprehensive assessment of the reliability and completeness of these detections is lacking.
Vikrant Jadhav, Dhanraj Risbud, Pavel Kroupa, Wenjie Wu   +3 more
semanticscholar   +1 more source

Dynamical model of Praesepe and its tidal tails

Astronomy & Astrophysics
The dynamical evolution of open clusters in the tidal field of the Milky Way and the feeding of the disc field star population depend strongly on the initial conditions at the time of gas removal. Detailed dynamical models tailored to individual clusters
L. Weis, C. West, A. Just, P. Berczik, M. Ishchenko, S. Roser, E. Schilbach, B. Shukirgaliyev   +7 more
semanticscholar   +1 more source

Symmetric Tidal Tails of Galactic Open Clusters

Research Notes of the AAS
We present a test of the symmetry of tidal tails in nearby open clusters (OCs) within 1 kpc using Gaia Data Release 3. We fit King density profiles to obtain the tidal radius for each OC and identify leading and trailing tail members according to their ...
S. Qin 秦, Friedrich Anders, Lola Balaguer-Núñez, Yueyue 悦悦 Jiang 蒋, Jing 靖 Zhong 钟, Li 力 Chen 陈, J. Hou 侯   +6 more
semanticscholar   +1 more source

Tidal tails in open clusters: Morphology, binary fraction, dynamics, and rotation

Astronomy & Astrophysics
This research presents unsupervised machine learning and statistical methods to identify and analyze tidal tails in open star clusters using data from the Gaia DR3 catalog.
Ira Sharma, Vikrant Jadhav, Annapurni Subramaniam, Henriette Wirth   +3 more
semanticscholar   +1 more source

The extended halo and tidal tails of the old open cluster NGC 2112

Nippon Tenmon Gakkai obun kenkyu hokoku
This paper investigates the spatial structure and tidal tails of the nearby ($\sim$1100 pc) old open cluster NGC 2112 ($\sim$1.2 Gyr) based on reliable cluster members from Gaia-DR3.
Xinhua Gao, Chengyu Zhu
semanticscholar   +1 more source

Old massive clusters (and a nuclear star cluster?) in the tidal tails of NGC 5238

Astronomy & Astrophysics
New, deep HST photometry allowed us to identify and study eight compact and bright ($M_V -5.8$) star clusters in the outskirts of the star-forming isolated dwarf galaxy NGC 5238 sun $). Five of these clusters are new discoveries, and six appear projected
M. Bellazzini, F. Annibali, M. Correnti, M. Gatto, M. Marinelli, R. Pascale, E. Sacchi, M. Tosi, M. Cignoni, J. Cannon, L. Schisgal, G. Bortolini, A. Aloisi, G. Beccari, C. Nipoti   +14 more
semanticscholar   +1 more source