Peter K.S. Dunsby

A model-independent approach to the study of structure growth in f(R) gravity

#1

Kelly MacDevette
(
- Cape Town U.
)
,
Jess Worsley
(
- Cape Town U.
)
,
Peter Dunsby
(
)
,
Saikat Chakraborty
(
- Potchefstroom U. and
- Naresuan U.
)

(Aug 7, 2024)

Published in:
- Mon.Not.Roy.Astron.Soc. 537 (2025) 3, 2471-2495
•
e-Print:
- 2408.03998 [gr-qc]

DOI

reference search2 citations

Bouncing cosmologies in the presence of a Dirac-Born-Infeld field

#2

Mariam Campbell
(
- Cape Town U., Dept. Math.
)
,
Richard Daniel
(
- Sheffield U.
)
,
Peter K.S. Dunsby
(
)
,
Carsten van de Bruck
(
- Sheffield U.
)

(May 9, 2024)

Published in:
- Phys.Rev.D 110 (2024) 4, 043505
•
e-Print:
- 2405.06031 [gr-qc]

pdfDOI

reference search0 citations

Causal dynamics of null horizons under linear perturbations

#3

(Apr 23, 2024)

Published in:
- Phys.Rev.D 110 (2024) 6, 064039
•
e-Print:
- 2404.14742 [gr-qc]

pdfDOI

reference search1 citation

A dynamical systems formulation for inhomogeneous LRS-II spacetimes

#4

Saikat Chakraborty
(
- Naresuan U. and
- North West U., South Africa
)
,
Peter K.S. Dunsby
(
)
,
Rituparno Goswami
(
- KwaZulu Natal U.
)
,
Amare Abebe
(
- North West U., South Africa and
- NITheP, Matieland
)

(Apr 1, 2024)

Published in:
- JCAP 06 (2024) 054
•
e-Print:
- 2404.01161 [gr-qc]

DOI

reference search2 citations

Double polytropic cosmic acceleration from the Murnaghan equation of state

#5

(Mar 26, 2024)

Published in:
- Phys.Dark Univ. 46 (2024) 101563
•
e-Print:
- 2403.17880 [gr-qc]

pdfDOI

reference search3 citations

Some exact relativistic star solutions in f(R) gravity

#6

Mariam Campbell
(
- Cape Town U., Dept. Math.
)
,
Sante Carloni
(
- U. Genoa and
- INFN, Genoa and
- Charles U., Inst. Theor. Phys.
)
,
Peter K.S. Dunsby
(
)
,
Nolene F. Naidu
(
- Cape Town U., Dept. Math.
)

(Feb 29, 2024)

Published in:
- Class.Quant.Grav. 42 (2025) 8, 085014
•
e-Print:
- 2403.00070 [gr-qc]

DOI

reference search4 citations

Gradient conformal stationarity and the CMC condition in LRS spacetimes

#7

(Jan 15, 2024)

Published in:
- Class.Quant.Grav. 41 (2024) 20, 205002
•
e-Print:
- 2401.07605 [gr-qc]

pdfDOI

reference search0 citations

A model-independent compact dynamical system formulation for exploring bounce and cyclic cosmological evolutions in

f\, (R)

gravity

#8

Saikat Chakraborty
(
- Naresuan U. and
- North West U., South Africa
)
,
Charlotte Louw
(
- U. Cape Town (main)
)
,
A.S. Agrawal
(
- Birla Inst. Tech. Sci.
)
,
Peter K.S. Dunsby
(
)

(Nov 30, 2023)

Published in:
- Eur.Phys.J.C 84 (2024) 12, 1323
•
e-Print:
- 2311.18563 [gr-qc]

DOI

reference search0 citations

Unifying the dark sector through a single matter fluid with nonzero pressure

#9

(Aug 30, 2023)

Published in:
- Phys.Rev.D 109 (2024) 2, 023510
•
e-Print:
- 2308.15776 [gr-qc]

pdfDOI

reference search14 citations

Transitioning from a bounce to R

^{2}

inflation

#10

Richard Daniel
(
- Sheffield U.
)
,
Mariam Campbell
(
- Cape Town U., Dept. Math.
)
,
Carsten van de Bruck
(
- Sheffield U.
)
,
Peter Dunsby
(
- Cape Town U., Dept. Math. and
- South African Astron. Observ.
)

(Dec 2, 2022)

Published in:
- JCAP 06 (2023) 030
•
e-Print:
- 2212.01093 [gr-qc]

DOI

reference search5 citations

Imprint of f(R) gravity in the cosmic magnification

#11

(Oct 17, 2022)

Published in:
- Mon.Not.Roy.Astron.Soc. 518 (2022) 4, 6102-6113
•
e-Print:
- 2210.09303 [astro-ph.CO]

pdfDOI

reference search5 citations

Anisotropic two-fluid stellar objects in general relativity

#12

(Oct 13, 2022)

Published in:
- Phys.Rev.D 106 (2022) 12, 124023
•
e-Print:
- 2210.06867 [gr-qc]

pdfDOI

reference search7 citations

Horizon area bound and MOTS stability in locally rotationally symmetric solutions

#13

(Sep 22, 2022)

Published in:
- Class.Quant.Grav. 40 (2023) 4, 045005
•
e-Print:
- 2209.11358 [gr-qc]

pdfDOI

reference search6 citations

Comprehensive analysis of the compact phase space for Hu-Sawicki

f (R)

dark energy models including spatial curvature

#14

(Aug 31, 2022)

Published in:
- Phys.Rev.D 106 (2022) 10, 103533
•
e-Print:
- 2208.15002 [gr-qc]

pdfDOI

reference search4 citations

A note on the dynamical system formulations in f(R) gravity

#15

(Dec 24, 2021)

Published in:
- Int.J.Geom.Meth.Mod.Phys. 19 (2022) 08, 2230003
•
Contribution to:
- GeomGrav2021
•
e-Print:
- 2112.13094 [gr-qc]

pdfDOI

reference search6 citations

Conformal geometry on a class of embedded hypersurfaces in spacetimes

#16

(Dec 16, 2021)

Published in:
- Class.Quant.Grav. 39 (2022) 4, 045004
•
e-Print:
- 2112.08753 [math.DG]

pdfDOI

reference search0 citations

Constraining disformal couplings with Redshift Space Distortion

#17

Avishek Dusoye
(
- Cape Town U., Dept. Math. and
- U. Cape Town (main)
)
,
Alvaro de la Cruz-Dombriz
(
- Cape Town U., Dept. Math. and
- U. Cape Town (main) and
- Salamanca U.
)
,
Peter Dunsby
(
- Cape Town U., Dept. Math. and
- U. Cape Town (main)
)
,
Nelson J. Nunes
(
- U. Lisbon (main)
)

(Dec 9, 2021)

Published in:
- JCAP 01 (2023) 001
•
e-Print:
- 2112.04736 [gr-qc]

pdfDOI

reference search2 citations

On some locally symmetric embedded spaces with non-negative scalar curvature and their characterization

#18

(Dec 6, 2021)

Published in:
- Int.J.Geom.Meth.Mod.Phys. 19 (2022) 04, 2250051
•
e-Print:
- 2112.03219 [gr-qc]

pdfDOI

reference search0 citations

Model-independent reconstruction of cosmological accelerated–decelerated phase

#19

(Jun 29, 2021)

Published in:
- Mon.Not.Roy.Astron.Soc. 509 (2021) 4, 5399-5415
•
e-Print:
- 2106.15579 [astro-ph.CO]

pdfDOI

reference search44 citations

Covariant density and velocity perturbations of the quasi-Newtonian cosmological model in f(T) gravity

#20

Heba Sami
(
- UCT-CERN Res. Ctr.
)
,
Shambel Sahlu
(
- Vainu Bappu Observ. and
- Addis Ababa U.
)
,
Amare Abebe
(
- UCT-CERN Res. Ctr.
)
,
Peter K.S. Dunsby
(
- Cape Town U., Dept. Math.
)

(May 3, 2021)

Published in:
- Eur.Phys.J.C 81 (2021) 10, 872
•
e-Print:
- 2105.00646 [gr-qc]

DOI

reference search6 citations

On homothetic Killing vectors in stationary axisymmetric vacuum spacetimes

#21

(Mar 29, 2021)

Published in:
- Int.J.Geom.Meth.Mod.Phys. 18 (2021) 08, 2150121
•
e-Print:
- 2103.15549 [gr-qc]

pdfDOI

reference search3 citations

A model independent approach to the study of

f(R)

cosmologies with expansion histories close to

\Lambda

CDM

#22

(Mar 3, 2021)

Published in:
- Phys.Rev.D 103 (2021) 12, 124040
•
e-Print:
- 2103.02274 [gr-qc]

pdfDOI

reference search17 citations

Two-fluid stellar objects in general relativity: The covariant formulation

#23

(Feb 10, 2021)

Published in:
- Phys.Rev.D 104 (2021) 4, 044014
•
e-Print:
- 2102.05693 [gr-qc]

pdfDOI

reference search14 citations

Geometric properties of a certain class of compact dynamical horizons in locally rotationally symmetric class II spacetimes

#24

(Sep 21, 2020)

Published in:
- Int.J.Geom.Meth.Mod.Phys. 18 (2021) 01, 2150010
•
e-Print:
- 2009.09966 [gr-qc]

pdfDOI

reference search1 citation

Disformal couplings in a

\Lambda

CDM background cosmology

#25

(Jun 30, 2020)

Published in:
- JCAP 03 (2021) 002
•
e-Print:
- 2006.16962 [gr-qc]

pdfDOI

reference search10 citations

Peter K.S. Dunsby(
Cape Town U.
)

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Peter K.S. Dunsby(Cape Town U.)

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Peter K.S. Dunsby(
Cape Town U.
)