Results 61 to 70 of about 52,179 (329)
The Astrophysical JournalGalaxy merger timescales are crucial for understanding and modeling galaxy formation in our hierarchically structured Universe. However, previous studies have reported widely varying dependencies of merger timescales on initial orbital parameters and ...
Kun Xu, Y. P. Jing
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Weak-lensing Mass Bias in Merging Galaxy Clusters
The Astrophysical Journal, 2023 Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs from the assumed model profile. In a merging system, the bias is expected
Wonki Lee +8 more
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Post-merger Signatures of Red-sequence Galaxies in Rich Abell Clusters at $z\lesssim 0.1$
, 2012 We have investigated the post-merger signatures of red-sequence galaxies in rich Abell clusters at $z \lesssim$ 0.1: A119, A2670, A3330 and A389. Deep images in u', g', r' and medium-resolution galaxy spectra were taken using MOSAIC 2 CCD and Hydra MOS ...
Bell +22 more
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Formation of Globular Clusters in Galaxy Mergers [PDF]
Highlights of Astronomy, 2005 AbstractOur numerical simulations first demonstrate that the pressure of ISM in a major merger becomes so high (> 105 kB K cm-3) that GMCs in the merger can collapse to form globular clusters (GCs) within a few Myr. The star formation efficiency within a GMC in galaxy mergers can rise up from a few percent to ~ 80 percent, depending on the shapes ...
Kenji Bekki +3 more
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Advanced Materials Technologies, EarlyView.A highly sensitive crack‐based piezoresistive strain sensor is developed using a biaxially pre‐stretched multi‐walled carbon nanotubes/Ecoflex composite and integrated with auxetic metamaterials. Biaxial pre‐stretching improves the sensitivity by 56% compared to the uniaxially pre‐stretched strain sensor.
Jaewon Cho +3 more
wiley +1 more source
, 2012 Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation rate, we investigate a local sample of major merger galaxies and a control
Buat, V. +5 more
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THE MERGER-DRIVEN EVOLUTION OF MASSIVE GALAXIES [PDF]
The Astrophysical Journal, 2010 We explore the rate and impact of galaxy mergers on the massive galaxy population using the amplitude of the two-point correlation function on small scales for M > 5e10 M_sun galaxies from the COSMOS and COMBO-17 surveys. Using a pair fraction derived from the Sloan Digital Sky Survey as a low-redshift benchmark, the large survey area at ...
Robaina, Aday R +7 more
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Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
Star formation in mergers with cosmologically motivated initial conditions [PDF]
, 2015 We use semi-analytic models and cosmological merger trees to provide the initial conditions for multi-merger numerical hydrodynamic simulations, and exploit these simulations to explore the effect of galaxy interaction and merging on star formation (SF).
Kannan, Rahul +4 more
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THE DRIVING MECHANISM OF STARBURSTS IN GALAXY MERGERS [PDF]
The Astrophysical Journal, 2010 16 pages, 5 figures, submitted to ApJL, revised version after referee ...
Teyssier, R, Chapon, D, Bournaud, F
openaire +5 more sources