Outputs (12454)

Microwave-optical spectroscopy of Rydberg excitons in the ultrastrong driving regime (2024)
Journal Article
Brewin, A., Gallagher, L. A. P., Pritchett, J. D., Wong, H. Q. X., Potvliege, R. M., Clark, S. J., & Jones, M. P. A. (2024). Microwave-optical spectroscopy of Rydberg excitons in the ultrastrong driving regime. New Journal of Physics, 26(11), Article 113018. https://doi.org/10.1088/1367-2630/ad8c74

We study the ultrastrong driving of Rydberg excitons in Cu2O by a microwave field. The effect of the field is studied using optical absorption spectroscopy, and through the observation of sidebands on the transmitted laser light. A model based on Flo... Read More about Microwave-optical spectroscopy of Rydberg excitons in the ultrastrong driving regime.

Thermal pressure on ultrarelativistic bubbles from a semiclassical formalism (2024)
Journal Article
Long, A. J., & Turner, J. (2024). Thermal pressure on ultrarelativistic bubbles from a semiclassical formalism. Journal of Cosmology and Astroparticle Physics, 2024(11), https://doi.org/10.1088/1475-7516/2024/11/024

We study a planar bubble wall that is traveling at an ultrarelativistic speed through a thermal plasma. This situation may arise during a first-order electroweak phase transition in the early universe. As particles cross the wall, it is assumed that... Read More about Thermal pressure on ultrarelativistic bubbles from a semiclassical formalism.

AGN STORM 2. X. The Origin of the Interband Continuum Delays in Mrk 817 * * Based in part on observations associated with program GO-16196 made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. (2024)
Journal Article
Netzer, H., Goad, M. R., Barth, A. J., Cackett, E. M., Horne, K., Hu, C., Kara, E., Korista, K. T., Kriss, G. A., Lewin, C., Montano, J., Arav, N., Behar, E., Brotherton, M. S., Chelouche, D., De Rosa, G., Dalla Bontà, E., Dehghanian, M., Ferland, G. J., Fian, C., …Zaidouni, F. (2024). AGN STORM 2. X. The Origin of the Interband Continuum Delays in Mrk 817 * * Based in part on observations associated with program GO-16196 made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. The Astrophysical Journal, 976(1), Article 59. https://doi.org/10.3847/1538-4357/ad8160

The local (z = 0.0315) active galactic nucleus (AGN) Mrk 817 was monitored over more than 500 days with space-borne and ground-based instruments as part of a large international campaign, AGN STORM 2. Here, we present a comprehensive analysis of the... Read More about AGN STORM 2. X. The Origin of the Interband Continuum Delays in Mrk 817 * * Based in part on observations associated with program GO-16196 made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555..

KBSS-InCLOSE. I. Design and First Results from the Inner Circumgalactic Medium of QSO Line-of-sight Emitting Galaxies at z ∼ 2–3 * * Some of the data presented herein were obtained at Keck Observatory, which is a private 501(c)3 non-profit organization operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. (2024)
Journal Article
Nuñez, E. H., Steidel, C. C., Kirby, E. N., Rudie, G. C., Prusinski, N. Z., Chen, Y., Zhuang, Z., Strom, A. L., Erb, D. K., Pettini, M., Welsh, L., Rupke, D. S. N., & Cooke, R. J. (2024). KBSS-InCLOSE. I. Design and First Results from the Inner Circumgalactic Medium of QSO Line-of-sight Emitting Galaxies at z ∼ 2–3 * * Some of the data presented herein were obtained at Keck Observatory, which is a private 501(c)3 non-profit organization operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The Astrophysical Journal, 976(1), Article 41. https://doi.org/10.3847/1538-4357/ad70b6

We present the design and first results of the inner circumgalactic medium (CGM) of QSO line-of-sight emitting galaxies at z ∼ 2–3, Keck Baryonic Structure Survey (KBSS)-InCLOSE. The survey will connect galaxy properties (e.g., stellar mass M *, inte... Read More about KBSS-InCLOSE. I. Design and First Results from the Inner Circumgalactic Medium of QSO Line-of-sight Emitting Galaxies at z ∼ 2–3 * * Some of the data presented herein were obtained at Keck Observatory, which is a private 501(c)3 non-profit organization operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation..

Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos (2024)
Journal Article
Carlberg, R. G., Jenkins, A., Frenk, C. S., & Cooper, A. P. (2024). Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos. The Astrophysical Journal, 975(1), Article 135. https://doi.org/10.3847/1538-4357/ad7b35

The dark matter subhalos orbiting in a galactic halo perturb the orbits of stars in thin stellar streams. Over time, the random velocities in the streams develop non-Gaussian wings. The rate of velocity increase is approximately a random walk at a ra... Read More about Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos.

Analytic amplitudes for a pair of Higgs bosons in association with three partons (2024)
Journal Article
Campbell, J. M., De Laurentis, G., & Ellis, R. K. (2024). Analytic amplitudes for a pair of Higgs bosons in association with three partons. Journal of High Energy Physics, 2024(10), Article 230. https://doi.org/10.1007/jhep10%282024%29230

The pair production of Higgs bosons at the LHC can give information about the triple Higgs boson coupling. We perform an analytic one-loop calculation of the amplitudes for a pair of Higgs bosons in association with three partons, retaining the exact... Read More about Analytic amplitudes for a pair of Higgs bosons in association with three partons.

A second view on the X-ray polarization of NGC 4151 with IXPE (2024)
Journal Article
Gianolli, V. E., Bianchi, S., Kammoun, E., Gnarini, A., Marinucci, A., Ursini, F., Parra, M., Tortosa, A., De Rosa, A., Kim, D. E., Marin, F., Matt, G., Serafinelli, R., Soffitta, P., Tagliacozzo, D., Di Gesu, L., Done, C., Marshall, H. L., Middei, R., Mikusincova, R., …Tombesi, F. (2024). A second view on the X-ray polarization of NGC 4151 with IXPE. Astronomy & Astrophysics, 691, Article A29. https://doi.org/10.1051/0004-6361/202451645

We report on the second observing program of the active galactic nucleus NGC 4151 with simultaneous Imaging X-ray Polarimetry Explorer (IXPE; 750 ks), NuSTAR (∼60 ks), XMM-Newton (∼75 ks), and NICER (∼65 ks) pointings. NGC 4151 is the first Type-1 ra... Read More about A second view on the X-ray polarization of NGC 4151 with IXPE.

Recovering chemical bimodalities in observed edge-on stellar disks: Insights from AURIGA simulations (2024)
Journal Article
Pinna, F., Grand, R. J. J., Martig, M., & Fragkoudi, F. (2024). Recovering chemical bimodalities in observed edge-on stellar disks: Insights from AURIGA simulations. Astronomy & Astrophysics, 691, Article A61. https://doi.org/10.1051/0004-6361/202450843

The well-known bimodal distribution of Milky Way disk stars in the [α/Fe]–metallicity plane is often used to define thick and thin disks. In external edge-on galaxies, there have been attempts to identify this type of bimodality using integral field... Read More about Recovering chemical bimodalities in observed edge-on stellar disks: Insights from AURIGA simulations.

Robust Support for Semi-automated Reductions of Keck/NIRSPEC Data Using PypeIt (2024)
Journal Article
Carvalho, A. S., Doppmann, G., Westfall, K. B., Pelliccia, D., Prochaska, J. X., Hennawi, J., Davies, F. B., Brodheim, M., Wang, F., & Cooke, R. (2024). Robust Support for Semi-automated Reductions of Keck/NIRSPEC Data Using PypeIt. Research Notes of the American Astronomical Society, 8(10), Article 271. https://doi.org/10.3847/2515-5172/ad8bb5

We present a data reduction pipeline (DRP) for Keck/Near InfraRed SPECtrograph (NIRSPEC) built as an addition to the PypeIt Python package. The DRP is capable of reducing multi-order echelle data taken both before and after the detector upgrade in 20... Read More about Robust Support for Semi-automated Reductions of Keck/NIRSPEC Data Using PypeIt.

Quantum algorithms for scientific computing. (2024)
Journal Article
Au-Yeung, R., Camino, B., Rathore, O., & Kendon, V. (2024). Quantum algorithms for scientific computing. Reports on Progress in Physics, 87(11), Article 116001. https://doi.org/10.1088/1361-6633/ad85f0

Quantum computing promises to provide the next step up in computational power for diverse application areas. In this review, we examine the science behind the quantum hype, and the breakthroughs required to achieve true quantum advantage in real worl... Read More about Quantum algorithms for scientific computing..