https://doi.org/10.1140/epjc/s10052-024-13025-9
Regular Article -Theoretical Physics
Probing secular changes in the gravitational constant with white dwarf spectra
1
Division of Applied Physics, Dong Nai Technology University, Bien Hoa City, Vietnam
2
Faculty of Engineering, Dong Nai Technology University, Bien Hoa City, Vietnam
Received:
16
March
2024
Accepted:
14
June
2024
Published online:
15
July
2024
Exploring variations in fundamental physics constants across cosmological space-time is of substantial importance in both theoretical and experimental physics. A crucial means of investigating such variations involves comparing laboratory measurements with astrophysical observations. In the present study, we employ a combination of laboratory data and observed Lyman transitions of 
identified in the white dwarf star GD133. Through this examination, we find the temporal variation of the gravitational constant, 
with a gravitational potential 
and an average total redshift of 
This newly determined constraint on the time variation of G serves as an important tool for advancing discussions within unified theories.
© The Author(s) 2024
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3.
