Gravitational wave surrogate model for spinning, intermediate mass ratio binaries based on perturbation theory and numerical relativity

Posted by dbos MIT

Kavli Affiliate: Scott A. Hughes | First 5 Authors: Katie Rink, Ritesh Bachhar, Tousif Islam, Nur E. M. Rifat, Kevin Gonzalez-Quesada | Summary: We present BHPTNRSur2dq1e3, a reduced order surrogate model of gravitational waves emitted from binary black hole (BBH) systems in the comparable to large mass ratio regime with aligned spin ($chi_1$) on the […]


Continue.. Gravitational wave surrogate model for spinning, intermediate mass ratio binaries based on perturbation theory and numerical relativity

GJ 238 b: A 0.57 Earth Radius Planet Orbiting an M2.5 Dwarf Star at 15.2 pc

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Evan Tey, Avi Shporer, Zifan Lin, Keivan G. Stassun, Jack J. Lissauer | Summary: We report the discovery of the transiting planet GJ 238 b, with a radius of $0.566pm0.014$ R$_{oplus}$ ($1.064pm0.026$ times the radius of Mars) and an orbital period of 1.74 day. The transit signal […]


Continue.. GJ 238 b: A 0.57 Earth Radius Planet Orbiting an M2.5 Dwarf Star at 15.2 pc

UMono: Physical Model Informed Hybrid CNN-Transformer Framework for Underwater Monocular Depth Estimation

Posted by dbos Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jian Wang, Jing Wang, Shenghui Rong, Bo He, | Summary: Underwater monocular depth estimation serves as the foundation for tasks such as 3D reconstruction of underwater scenes. However, due to the influence of light and medium, the underwater environment undergoes a distinctive imaging process, which presents challenges […]


Continue.. UMono: Physical Model Informed Hybrid CNN-Transformer Framework for Underwater Monocular Depth Estimation

UMono: Physical Model Informed Hybrid CNN-Transformer Framework for Underwater Monocular Depth Estimation

Posted by dbos Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jian Wang, Jing Wang, Shenghui Rong, Bo He, | Summary: Underwater monocular depth estimation serves as the foundation for tasks such as 3D reconstruction of underwater scenes. However, due to the influence of light and medium, the underwater environment undergoes a distinctive imaging process, which presents challenges […]


Continue.. UMono: Physical Model Informed Hybrid CNN-Transformer Framework for Underwater Monocular Depth Estimation

TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by TTVs

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Judith Korth, Priyanka Chaturvedi, Hannu Parviainen, Ilaria Carleo, Michael Endl | Summary: We report the discovery and characterization of a small planet, TOI-1408 c, on a 2.2-day orbit located interior to a previously known hot Jupiter, TOI-1408 b ($P=4.42$ d, $M=1.86pm0.02,M_mathrm{Jup}$, $R=2.4pm0.5,R_mathrm{Jup}$) that exhibits grazing transits. The […]


Continue.. TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by TTVs

ACACIAS I: Element abundance labels for 192 stars in the dwarf galaxy NGC 6822

Posted by dbos Chicago

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Melissa K. Ness, J. Trevor Mendel, Sven Buder, Adam Wheeler, Alexander P. Ji | Summary: The element abundances of local group galaxies connect enrichment mechanisms to galactic properties and serve to contextualise the Milky Way’s abundance distributions. Individual stellar spectra in nearby galaxies can be extracted […]


Continue.. ACACIAS I: Element abundance labels for 192 stars in the dwarf galaxy NGC 6822

The HalfDome Multi-Survey Cosmological Simulations: N-body Simulations

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Adrian E. Bayer, Yici Zhong, Zack Li, Joseph DeRose, Yu Feng | Summary: Upcoming cosmological surveys have the potential to reach groundbreaking discoveries on multiple fronts, including the neutrino mass, dark energy, and inflation. Most of the key science goals require the joint analysis of datasets from […]


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Determination of $|V_{ub}|$ from simultaneous measurements of untagged $B^0toπ^- ell^+ ν_{ell}$ and $B^+toρ^0 ell^+ν_{ell}$ decays

Posted by dbos Tokyo

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov | Summary: We present a measurement of $|V_{ub}|$ from a simultaneous study of the charmless semileptonic decays $B^0topi^- ell^+ nu_{ell}$ and $B^+torho^0 ell^+nu_{ell}$, where $ell = e, mu$. This measurement uses a data sample of 387 […]


Continue.. Determination of $|V_{ub}|$ from simultaneous measurements of untagged $B^0toπ^- ell^+ ν_{ell}$ and $B^+toρ^0 ell^+ν_{ell}$ decays

Determination of $|V_{ub}|$ from simultaneous measurements of untagged $B^0toπ^- ell^+ ν_{ell}$ and $B^+toρ^0 ell^+ν_{ell}$ decays

Posted by dbos Tokyo

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov | Summary: We present a measurement of $|V_{ub}|$ from a simultaneous study of the charmless semileptonic decays $B^0topi^- ell^+ nu_{ell}$ and $B^+torho^0 ell^+nu_{ell}$, where $ell = e, mu$. This measurement uses a data sample of 387 […]


Continue.. Determination of $|V_{ub}|$ from simultaneous measurements of untagged $B^0toπ^- ell^+ ν_{ell}$ and $B^+toρ^0 ell^+ν_{ell}$ decays

Population-level Dark Energy Constraints from Strong Gravitational Lensing using Simulation-Based Inference

Posted by dbos Chicago

Kavli Affiliate: Brian Nord | First 5 Authors: Sreevani Jarugula, Brian Nord, Abhijith Gandrakota, Aleksandra Ćiprijanović, | Summary: In this work, we present a scalable approach for inferring the dark energy equation-of-state parameter ($w$) from a population of strong gravitational lens images using Simulation-Based Inference (SBI). Strong gravitational lensing offers crucial insights into cosmology, but […]


Continue.. Population-level Dark Energy Constraints from Strong Gravitational Lensing using Simulation-Based Inference