J. K. Webb
- A high deuterium abundance at redshift z = 0.7
1997/07/17 by J. K. Webb, John K. Webb, R. F. Carswell +9 · 7 citations
Earth and Planetary Sciences · Physics and Astronomy · #Atmospheric Ozone and Climate #Geophysics and Gravity Measurements #Scientific Research and Discoveries #astro-ph
- Limits on Variations in Fundamental Constants from 21-cm and Ultraviolet Quasar Absorption Lines
2004/12/31 by P. Tzanavaris, J. K. Webb, John K. Webb +3 · 2 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph #hep-ph #physics.atom-ph
- The first high-amplitude Scuti star in an eclipsing binary system
2007/07/31 by Jessie L. Christiansen, J. L. Christiansen, A. Derekas +7 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph
- Possible evidence for a variable fine-structure constant from QSO absorption lines: systematic errors
2000/12/31 by M. T. Murphy, J. K. Webb, John K. Webb +4 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph
- Probing variations in fundamental constants with radio and optical quasar absorption-line observations
2006/10/17 by P. Tzanavaris, M. T. Murphy, J. K. Webb +2 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Radio Astronomy Observations and Technology #astro-ph #hep-th #physics.atom-ph
- Detection of spatial variations in the (D/H) ratio in the local interstellar medium
1998/07/01 by A. Vidal‐Madjar, A. Vidal-Madjar, M. Lemoine +21 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #Atmospheric Ozone and Climate #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
- Selection of ThAr lines for wavelength calibration of echelle spectra and implications for variations in the fine-structure constant
2007/03/23 by M. T. Murphy, P. Tzanavaris, J. K. Webb +1 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
- The MAGPI Survey: Insights into the Lyman-alpha line widths and the size of ionized bubbles at the edge of cosmic reionization
2024/10/23 by Tapan K. Mukherjee, Tayyaba Zafar, Mukherjee, T. +39 · 1 citation
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Photocathodes and Microchannel Plates #Spacecraft Design and Technology