Zobrazeno 1 - 10
of 2 192
pro vyhledávání: '"Shapiro delay"'
Autor:
Gautam, T., Freire, P. C. C., Wu, J., Krishnan, V. Venkatraman, Kramer, M., Barr, E. D., Bailes, M., Cameron, A. D.
PSR J1012$-$4235 is a 3.1ms pulsar in a wide binary (37.9 days) with a white dwarf companion. We detect, for the first time, a strong relativistic Shapiro delay signature in PSR J1012$-$4235. Our detection is the result of a timing analysis of data s
Externí odkaz:
http://arxiv.org/abs/2311.13563
Autor:
Shamohammadi, Mohsen, Bailes, Matthew, Freire, Paulo C. C., Parthasarathy, Aditya, Reardon, Daniel J., Shannon, Ryan M., Krishnan, Vivek Venkatraman, Bernadich, Miquel C. i., Cameron, Andrew D., Champion, David J., Corongiu, Alessandro, Flynn, Christopher, Geyer, Marisa, Kramer, Michael, Miles, Matthew T., Possenti, Andrea, Spiewak, Renee
Precision timing of millisecond pulsars in binary systems enables observers to detect the relativistic Shapiro delay induced by space time curvature. When favourably aligned, this enables constraints to be placed on the component masses and system or
Externí odkaz:
http://arxiv.org/abs/2212.04051
Autor:
Minazzoli, Olivier
There are several shortcomings in the "standard" Shapiro delay tests of the equivalence principle on cosmological scales \cite{minazzoli:2019pr}. Although many people in the community already acknowledged this in the literature, and proposed alternat
Externí odkaz:
http://arxiv.org/abs/2203.11215
Akademický článek
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Autor:
Sullivan, Andrew G., Veske, Doğa, Márka, Zsuzsa, Bartos, Imre, Ballmer, Stefan, Shawhan, Peter, Márka, Szabolcs
Publikováno v:
Class. Quantum Grav. 37 205005 (2020)
Shapiro time delay is one of the fundamental tests of general relativity and post-Newtonian theories of gravity. Consequently, its measurements can be used to probe the parameter $\gamma$ which is related to spacetime curvature produced by a unit mas
Externí odkaz:
http://arxiv.org/abs/2005.07188
Autor:
Ng, C., Guillemot, L., Freire, P. C. C., Kramer, M., Champion, D. J., Cognard, I., Theureau, G., Barr, E. D.
This paper presents the first detection of Shapiro delay from the binary millisecond pulsar PSR J1811-2405. We report a 11-${\sigma}$ measurement of the orthometric amplitude, h$_3$=6.8(6)x10$^{-7}$, and a 16-${\sigma}$ measurement of the orthometric
Externí odkaz:
http://arxiv.org/abs/2002.01009
Publikováno v:
Phys. Rev. D 100, 104047 (2019)
The "Shapiro delay" experienced by an astronomical messenger traveling through a gravitational field has been used to place constraints on possible deviations from the equivalence principle. The standard Shapiro delay used to obtain these constraints
Externí odkaz:
http://arxiv.org/abs/1907.12453
Autor:
Cromartie, H. Thankful, Fonseca, Emmanuel, Ransom, Scott M., Demorest, Paul B., Arzoumanian, Zaven, Blumer, Harsha, Brook, Paul R., DeCesar, Megan E., Dolch, Timothy, Ellis, Justin A., Ferdman, Robert D., Ferrara, Elizabeth C., Garver-Daniels, Nathaniel, Gentile, Pete A., Jones, Megan L., Lam, Michael T., Lorimer, Duncan R., Lynch, Ryan S., McLaughlin, Maura A., Ng, Cherry, Nice, David J., Pennucci, Timothy T., Spiewak, Renee, Stairs, Ingrid H., Stovall, Kevin, Swiggum, Joseph K., Zhu, Weiwei
Despite its importance to our understanding of physics at supranuclear densities, the equation of state (EoS) of matter deep within neutron stars remains poorly understood. Millisecond pulsars (MSPs) are among the most useful astrophysical objects in
Externí odkaz:
http://arxiv.org/abs/1904.06759
Publikováno v:
Eur. Phys. J. C 80: 51 (2020)
In this paper, we apply the classical test of general relativity on a charged Weyl black hole, whose exterior geometry is defined by altering the spherically symmetric solutions of Weyl conformal theory of gravity. The tests are basically founded on
Externí odkaz:
http://arxiv.org/abs/1910.12811
Akademický článek
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