A new f(R) gravity model and properties of gravitational waves in it

被引：59

作者：

Gogoi, Dhruba Jyoti ^{[1
]}

Goswami, Umananda Dev ^{[1
]}

机构：

[1] Dibrugarh Univ, Dept Phys, Dibrugarh 786004, Assam, India

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 12期

关键词：

PULSAR-TIMING PACKAGE; ACCELERATING UNIVERSE; SUPERNOVAE; COSMOLOGY; TEMPO2;

D O I：

10.1140/epjc/s10052-020-08684-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this paper, we have introduced a new f(R) gravity model as an attempt to have a model with more parametric control, so that the model can be used to explain the existing problems as well as to explore new directions in physics of gravity, by properly constraining it with recent observational data. Here basic aim is to study the properties of Gravitational Waves (GWs) in this new model. In f(R) gravity metric formalism, the model shows the existence of scalar degree of freedom as like other f(R) gravity models. Due to this reason, there is a scalar mode of polarization of GWs present in the theory. This polarization mode exists in a mixed state, of which one is transverse massless breathing mode with non-vanishing trace and the other is massive longitudinal mode. The longitudinal mode being massive, travels at speed less than the usual tensor modes found in General Relativity (GR). Moreover, for a better understanding of the model, we have studied the potential and mass of scalar graviton in both Jordan frame and Einstein frame. This model can pass the solar system tests and can explain primordial and present dark energy. Also, we have put constraints on the model. It is found that the correlation function for the third mode of polarization under certain mass scale predicted by the model agrees well with the recent data of Pulsar Timing Arrays. It seems that this new model would be useful in dealing with different existing issues in the areas of astrophysics and cosmology.

引用

页数：21

共 52 条

[1] Observation of Gravitational Waves from a Binary Black Hole Merger [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Abernathy, M. R. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allocca, A. ;

Altin, P. A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Arai, K. ;

Arain, M. A. ;

Araya, M. C. ;

Arceneaux, C. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Aufmuth, P. ;

Aulbert, C. ;

Babak, S. ;

Bacon, P. ;

Bader, M. K. M. ;

Baker, P. T. ;

Baldaccini, F. ;

Ballardin, G. ;

Ballmer, S. W. ;

Barayoga, J. C. ;

Barclay, S. E. ;

Barish, B. C. ;

Barker, D. ;

Barone, F. .

PHYSICAL REVIEW LETTERS, 2016, 116 (06)

[2] Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Barrena, R. ;

Bartlett, J. G. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bikmaev, I. ;

Blanchard, A. ;

Bobin, J. ;

Bock, J. J. ;

Boehringer, H. ;

Bonaldi, A. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bourdin, H. ;

Bridges, M. ;

Brown, M. L. ;

Bucher, M. ;

Burenin, R. ;

Burigana, C. ;

Butler, R. C. ;

Cardoso, J. -F. ;

Carvalho, P. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, L. -Y ;

Chiang, H. C. ;

Chon, G. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[3]

Amendola L., 2015, Dark Energy: Theory and Observations

[4] Conditions for the cosmological viability of f(R) dark energy models [J].

Amendola, Luca ;

Gannouji, Radouane ;

Polarski, David ;

Tsujikawa, Shinji .

PHYSICAL REVIEW D, 2007, 75 (08)

[5] THE NANOGRAV NINE-YEAR DATA SET: LIMITS ON THE ISOTROPIC STOCHASTIC GRAVITATIONAL WAVE BACKGROUND [J].

Arzoumanian, Z. ;

Brazier, A. ;

Burke-Spolaor, S. ;

Chamberlin, S. J. ;

Chatterjee, S. ;

Christy, B. ;

Cordes, J. M. ;

Cornish, N. J. ;

Crowter, K. ;

Demorest, P. B. ;

Deng, X. ;

Dolch, T. ;

Ellis, J. A. ;

Ferdman, R. D. ;

Fonseca, E. ;

Garver-Daniels, N. ;

Gonzalez, M. E. ;

Jenet, F. ;

Jones, G. ;

Jones, M. L. ;

Kaspi, V. M. ;

Koop, M. ;

Lam, M. T. ;

Lazio, T. J. W. ;

Levin, L. ;

Lommen, A. N. ;

Lorimer, D. R. ;

Luo, J. ;

Lynch, R. S. ;

Madison, D. R. ;

McLaughlin, M. A. ;

McWilliams, S. T. ;

Mingarelli, C. M. F. ;

Nice, D. J. ;

Palliyaguru, N. ;

Pennucci, T. T. ;

Ransom, S. M. ;

Sampson, L. ;

Sanidas, S. A. ;

Sesana, A. ;

Siemens, X. ;

Simon, J. ;

Stairs, I. H. ;

Stinebring, D. R. ;

Stovall, K. ;

Swiggum, J. ;

Taylor, S. R. ;

Vallisneri, M. ;

van Haasteren, R. ;

Wang, Y. .

ASTROPHYSICAL JOURNAL, 2016, 821 (01)

[6] A MILLISECOND PULSAR [J].

BACKER, DC ;

KULKARNI, SR ;

HEILES, C ;

DAVIS, MM ;

GOSS, WM .

NATURE, 1982, 300 (5893) :615-618

[7] Cosmology - The cosmic triangle: Revealing the state of the universe [J].

Bahcall, NA ;

Ostriker, JP ;

Perlmutter, S ;

Steinhardt, PJ .

SCIENCE, 1999, 284 (5419) :1481-1488

[8] Generic feature of future crossing of phantom divide in viable f(R) gravity models [J].

Bamba, Kazuharu ;

Geng, Chao-Qiang ;

Lee, Chung-Chi .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2010, (11)

[9] Current status of modified gravity [J].

Boubekeur, Lotfi ;

Giusarma, Elena ;

Mena, Olga ;

Ramirez, Hector .

PHYSICAL REVIEW D, 2014, 90 (10)

[10]

Brazier A, 2019, ARXIV190805356

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