Results 61 to 70 of about 1,397 (185)

Advancing Localization Optoacoustic Tomography Using Experimentally‐Derived Effective Point Spread Functions

Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.
This study presents an improved technique for Localization Optoacoustic Tomography using experimentally‐derived effective point spread functions. The method significantly enhances sub‐pixel localization performance, with applicable potential to relatively under‐sampled scenarios and other imaging modalities, paving the way for new frontiers in super ...
Hongtong Li, Haiyang Zhan, Daniil Nozdriukhin, Lin Tang, Hongjing Cao, Rui Ma, Tingkai Yan, Luyuan Feng, Zheng You, Daniel Razansky, Xose Luis Dean‐Ben, Fei Xing   +11 more
wiley   +1 more source

Evidence for a Nonzero Eccentricity Superpuff Exoplanet WASP-107 b Using JWST Occultation Observation

The Astrophysical Journal Letters
WASP-107 b is an extremely low-density superpuff exoplanet whose inflated radius and evidence of strong internal heating make it a key target for understanding planetary structure and evolution.
Yunke Wu, Zixin Zhang, Xinyue Ma, Zhangliang Chen, Wenqin Wang, Shangfei Liu, Cong Yu, Dichang Chen, Bo Ma   +8 more
doaj   +1 more source

Fate of James Webb Space Telescope murky [PDF]

Eos, Transactions American Geophysical Union, 2011
The James Webb Space Telescope (JWST), the next‐generation successor to the Hubble Space Telescope, was put on the chopping block by the U.S. House of Representatives Appropriations Subcommittee on Commerce, Justice, Science, and Related Agencies. The subcommittee approved a measure on 7 July that “terminates funding for [JWST], which is billions of ...
openaire   +1 more source

First James Webb Space Telescope´s images

Innovare: Revista de ciencia y tecnología, 2022
From left to right and from top to bottom: 1. The Stephan's Quintet (interacting galaxies' group), 40 million and 290 million light-years away; 2. The Cartwheel Galaxy, a merger of galaxies of 144,300 light-years across, 500 million light-years away; 3. The spectrum of the exoplanet WASP-96b (1,150 light-years away), showing evaporated water; 4.
openaire   +1 more source

The James Webb Space Telescope NIRSpec-PRISM Transmission Spectrum of the Super-puff, Kepler-51d

The Astronomical Journal
Kepler-51 is a 500 Myr G dwarf hosting three “super-puffs” and one low-mass nontransiting planet. Kepler-51d, the coolest ( T _eq ∼ 350 K) transiting planet in this system is also one of the lowest-density super-puffs known to date ( ρ _p = 0.038 ± 0.009
Jessica E. Libby-Roberts, Aaron Bello-Arufe, Zachory K. Berta-Thompson, Caleb I. Cañas, Yayaati Chachan, Renyu Hu, Yui Kawashima, Catriona Murray, Kazumasa Ohno, Armen Tokadjian, Suvrath Mahadevan, Kento Masuda, Leslie Hebb, Caroline Morley, Guangwei Fu, Peter Gao, Kevin B. Stevenson   +16 more
doaj   +1 more source

Slow Rotation for the Super-puff Planet Kepler-51d

The Astrophysical Journal Letters
Super-puffs are low-density planets of unknown origin and composition. If they form by accreting nebular gas through a circumplanetary disk, one might expect super-puffs to be spinning quickly. Here, we derive upper limits on the rotational oblateness of
Caleb Lammers, Joshua N. Winn
doaj   +1 more source

The James Webb Space Telescope prompts a rethink of how galaxies form. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source

Improved Empirical Backgrounds for JWST NIRISS Image/Wide-field Slitless Spectroscopy Data Reduction

The Astronomical Journal
The Near Infrared Imager and Slitless Spectrograph (NIRISS) on the James Webb Space Telescope (JWST) is a versatile instrument for collecting imaging and wide-field slitless spectroscopy (WFSS) data for surveys of galaxy clusters, emission-line galaxies,
Raphael E. Hviding, Ivelina G. Momcheva, Leonardo Clarke   +2 more
doaj   +1 more source

JWST MIRI/Medium Resolution Spectrograph (MRS) Observations and Spectral Models of the Underluminous Type Ia Supernova 2022xkq

The Astrophysical Journal
We present a JWST mid-infrared (MIR) spectrum of the underluminous Type Ia Supernova (SN Ia) 2022xkq, obtained with the medium-resolution spectrometer on the Mid-Infrared Instrument (MIRI) ∼130 days post-explosion.
J. M. DerKacy, C. Ashall, P. Hoeflich, E. Baron, M. Shahbandeh, B. J. Shappee, J. Andrews, D. Baade, E. F Balangan, K. A. Bostroem, P. J. Brown, C. R. Burns, A. Burrow, A. Cikota, T. de Jaeger, A. Do, Y. Dong, I. Dominguez, O. Fox, L. Galbany, E. T. Hoang, E. Y. Hsiao, D. Janzen, J. E. Jencson, K. Krisciunas, S. Kumar, J. Lu, M. Lundquist, T. B. Mera Evans, J. R. Maund, P. Mazzali, K. Medler, N. E. Meza Retamal, N. Morrell, F. Patat, J. Pearson, M. M. Phillips, M. Shrestha, S. Stangl, C. P. Stevens, M. D. Stritzinger, N. B. Suntzeff, C. M. Telesco, M. A. Tucker, S. Valenti, L. Wang, Y. Yang   +46 more
doaj   +1 more source

The AURORA Survey: Tracing Galactic Outflows at z ≳ 2.5 with JWST/NIRSpec Near-ultraviolet Absorption Lines

The Astrophysical Journal
We probe galactic-scale outflows in star-forming galaxies at z  ≳ 2.5 drawn from the JWST/NIRSpec AURORA program. For the first time, we directly compare outflow properties from the early Universe to the present day using near-UV absorption lines.
Emily Kehoe, Alice E. Shapley, Ryan L. Sanders, Naveen A. Reddy, Michael W. Topping, Natalie Lam, Leonardo Clarke, Fergus Cullen, Richard S. Ellis, N. M. Förster Schreiber, Tucker Jones, Ali Ahmad Khostovan, Derek J. McLeod, Ross J. McLure, Desika Narayanan, Pascal Oesch, Anthony J. Pahl   +16 more
doaj   +1 more source