Zobrazeno 1 - 10
of 53 039
pro vyhledávání: '"A, Ratcliffe"'
Autor:
Mehdi, Zain, Vaidya, Varun D., Savill-Brown, Isabelle, Grosser, Phoebe, Ratcliffe, Alexander K., Liu, Haonan, Haine, Simon A., Hope, Joseph J., Viteri, C. Ricardo
Quantum logic operations between physically distinct qubits is an essential aspect of large-scale quantum information processing. We propose an approach to high-speed mixed-species entangling operations in trapped-ion quantum computers, based on mech
Externí odkaz:
http://arxiv.org/abs/2412.07185
Autor:
Khoperskov, Sergey, Di Matteo, Paola, Steinmetz, Matthias, Ratcliffe, Bridget, van de Ven, Glenn, Boin, Tristan, Haywood, Misha, Kacharov, Nikolay, Minchev, Ivan, Krajnovic, Davor, Valentini, Marica, de Jong, Roelof S.
The innermost parts of the Milky Way (MW) are very difficult to observe due to the high extinction along the line of sight, especially close to the disc mid-plane. However, this region contains the most massive complex stellar component of the MW, th
Externí odkaz:
http://arxiv.org/abs/2411.18182
Autor:
Khoperskov, Sergey, Steinmetz, Matthias, Haywood, Misha, van de Ven, Glenn, Krajnovic, Davor, Ratcliffe, Bridget, Minchev, Ivan, Di Matteo, Paola, Kacharov, Nikolay, Marques, Léa, Valentini, Marica, de Jong, Roelof S.
The stellar disc is the dominant luminous component of the Milky Way (MW). Although our understanding of its structure is rapidly expanding due to advances in large-scale stellar surveys, our picture of the MW disc remains substantially obscured by s
Externí odkaz:
http://arxiv.org/abs/2411.16866
Autor:
Khoperskov, Sergey, van de Ven, Glenn, Steinmetz, Matthias, Ratcliffe, Bridget, Minchev, Ivan, Krajnovic, Davor, Haywood, Misha, Di Matteo, Paola, Kacharov, Nikolay, Marques, Léa, Valentini, Marica, de Jong, Roelof S.
We introduce a novel orbit superposition method designed to reconstruct the stellar density structure, kinematics, and chemical abundance distribution of the entire Milky Way by leveraging 6D phase-space information from its resolved stellar populati
Externí odkaz:
http://arxiv.org/abs/2411.15062
In this study we address whether the age--metallicity relation (AMR) deviates from the expected trend of metallicity increasing smoothly with age. We also show the presence (or absence) of two populations, as recently claimed using a relatively small
Externí odkaz:
http://arxiv.org/abs/2411.03067
Autor:
Ratcliffe, Bridget, Khoperskov, Sergey, Minchev, Ivan, Lee, Nathan D., Buck, Tobias, Marques, Léa, Lu, Lucy, Steinmetz, Matthias
Recent works identified a way to recover the time evolution of a galaxy's disk metallicity gradient from the shape of its age--metallicity relation. However, the success of the method is dependent on how the width of the star-forming region evolves o
Externí odkaz:
http://arxiv.org/abs/2410.17326
By enabling capturing of 3D point clouds that reflect the geometry of the immediate environment, LiDAR has emerged as a primary sensor for autonomous systems. If a LiDAR scan is too sparse, occluded by obstacles, or too small in range, enhancing the
Externí odkaz:
http://arxiv.org/abs/2410.11628
Autor:
Renaud, Florent, Ratcliffe, Bridget, Minchev, Ivan, Haywood, Misha, Di Matteo, Paola, Agertz, Oscar, Romeo, Alessandro B.
We analyze the evolution of the radial profiles and the azimuthal variations of the stellar metallicities from the Vintergatan simulation of a Milky Way-like galaxy. We find that negative gradients exist as soon as the disk settles at high redshift,
Externí odkaz:
http://arxiv.org/abs/2409.10598
Autor:
Di Giustino, Leonardo, Brodsky, Stanley J., Ratcliffe, Philip G., Wang, Sheng-Quan, Wu, Xing-Gang
We present a new approach to determining the strong coupling $\alpha_s(Q)$, over the entire range of validity of perturbative QCD, for scales above $\Lambda_{\mathrm{QCD}}$ and up to the Planck scale $\sim1.22\cdot10^{19}$\,GeV, with the highest prec
Externí odkaz:
http://arxiv.org/abs/2407.08570
Publikováno v:
A&A 690, A208 (2024)
The analysis of several spectroscopic surveys indicates the presence of a bimodality between the disc stars in the abundance ratio space of [${\alpha}$/Fe] versus [Fe/H]. The two stellar groups are commonly referred to as the high-${\alpha}$ and low-
Externí odkaz:
http://arxiv.org/abs/2405.11025