Constraints on Einstein-Maxwell dilaton-axion gravity from X-ray reflection spectroscopy - INSPIRE

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Constraints on Einstein-Maxwell dilaton-axion gravity from X-ray reflection spectroscopy

Ashutosh Tripathi
(
- Fudan U. and
- Fudan U., Shanghai
)
,
Biao Zhou
(
- Fudan U. and
- Fudan U., Shanghai
)
,
Askar B. Abdikamalov
(
- Fudan U. and
- Tashkent, Astron. Inst. and
- Fudan U., Shanghai
)
,
Dimitry Ayzenberg
(
- U. Tubingen
)
,
Cosimo Bambi
(
- Fudan U. and
- Fudan U., Shanghai
)

Mar 12, 2021

8 pages

Published in:

JCAP 07 (2021) 002

Published: Jul 1, 2021

e-Print:

2103.07593 [astro-ph.HE]

DOI:

10.1088/1475-7516/2021/07/002

View in:

ADS Abstract Service

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Abstract: (IOP)

Einstein-Maxwell dilaton-axion gravity is a string-inspired model arising from the low energy effective action of heterotic string theory and an important candidate as alternative to General Relativity. Recently, some authors have explored its astrophysical implications in the spectra of accreting black holes and inferred the constraint r2 < 0.1, where r2 ≥ 0 is the black hole dilaton charge and General Relativity is recovered for r2 = 0. In the present paper, we study the impact of a non-vanishing black hole dilaton charge on the reflection spectrum of the disk. From the analysis of a NuSTAR spectrum of the black hole binary EXO 1846-031, we find the constraint r2 < 0.011 (90% CL), which is an order of magnitude more stringent.

Note:

8 pages, 5 figures. v2: refereed version

accretion
accretion discs – black hole physics – gravitation
black hole: dilaton
dilaton: charge
string model: heterotic
black hole: spectrum
black hole: accretion
black hole
black hole: binary
X-ray: reflection

References(80)

Figures(0)

[1]

Testing general relativity with supermassive black holes using X-ray reflection spectroscopy

et al.

- MDPI Proc. 17 (2019) 1, 2
•
e-Print:
- 1905.08012
•
DOI:
- 10.3390/proceedings2019017002

[2]

Public Release of RELXILL_NK: A Relativistic Reflection Model for Testing Einstein’s Gravity

et al.

- Astrophys.J. 878 (2019) 2, 91
•
e-Print:
- 1902.09665
•
DOI:
- 10.3847/1538-4357/ab1f89

[3]

Testing the Kerr black hole hypothesis using X-ray reflection spectroscopy and a thin disk model with finite thickness

et al.

- Astrophys.J. 899 (2020) 1, 80
•
e-Print:
- 2003.09663
•
DOI:
- 10.3847/1538-4357/aba625

[4]

Implementation of a radial disk ionization profile in the relxill_nk model

- Phys.Rev.D 103 (2021) 10, 103023
•
e-Print:
- 2101.10100
•
DOI:
- 10.1103/PhysRevD.103.103023

[5]

Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1

LIGO Scientific and
Virgo

Collaborations

•

B.P. Abbott
(
- LIGO Lab., Caltech
)

et al.

- Phys.Rev.D 100 (2019) 10, 104036
•
e-Print:
- 1903.04467
•
DOI:
- 10.1103/PhysRevD.100.104036

[6]

Kerr-Sen Black Hole as Accelerator for Spinning Particles

- Phys.Rev.D 97 (2018) 2, 024003
•
e-Print:
- 1710.08630
•
DOI:
- 10.1103/PhysRevD.97.024003

[7]

K.A. Arnaud

- Astronomical Data Analysis Software and Systems 101 (1996) 17

[8]

Testing the space-time geometry around black hole candidates with the analysis of the broad K $\alpha$ iron line

Cosimo Bambi
(
- Fudan U. and
- Munich U., ASC
)

- Phys.Rev.D 87 (2013) 023007
•
e-Print:
- 1211.2513
•
DOI:
- 10.1103/PhysRevD.87.023007

[9]

Black Holes: A Laboratory for Testing Strong Gravity

Cosimo Bambi
(
- Fudan U.
)

•
DOI:
- 10.1007/978-981-10-4524-0

[10]

Testing black hole candidates with electromagnetic radiation

Cosimo Bambi
(
- Fudan U. and
- Tubingen U.
)

- Rev.Mod.Phys. 89 (2017) 2, 025001
•
e-Print:
- 1509.03884
•
DOI:
- 10.1103/RevModPhys.89.025001

[11]

Towards Precision Measurements of Accreting Black Holes Using X-Ray Reflection Spectroscopy

et al.

- Space Sci.Rev. 217 (2021) 5, 65
•
e-Print:
- 2011.04792
•
DOI:
- 10.1007/s11214-021-00841-8

[12]

Testing the Kerr black hole hypothesis using X-ray reflection spectroscopy

Cosimo Bambi
(
- Fudan U. and
- Tubingen U.
)
,
Alejandro Cardenas-Avendano
,
Thomas Dauser
(
- Erlangen - Nuremberg U., ECAP
)
,
Javier A. Garcia
(
- Harvard-Smithsonian Ctr. Astrophys.
)
,
Sourabh Nampalliwar
(
- Fudan U.
)

- Astrophys.J. 842 (2017) 2, 76
•
e-Print:
- 1607.00596
•
DOI:
- 10.3847/1538-4357/aa74c0

[13]

Astrophysical Black Holes: A Compact Pedagogical Review

Cosimo Bambi
(
- Fudan U. and
- Tubingen U.
)

- Annalen Phys. 530 (2018) 1700430
•
e-Print:
- 1711.10256
•
DOI:
- 10.1002/andp.201700430

[14]

Astrophysical Black Holes: A Review

Cosimo Bambi

- PoS MULTIF2019 (2020) 028
•
e-Print:
- 1906.03871
•
DOI:
- 10.22323/1.362.0028

[15]

Implications of Einstein–Maxwell dilaton–axion gravity from the black hole continuum spectrum

- Mon.Not.Roy.Astron.Soc. 500 (2020) 1, 481-492
•
e-Print:
- 2007.13980
•
DOI:
- 10.1093/mnras/staa3232

[16]

Stationary charged scalar clouds around black holes in string theory

Canisius Bernard
(
- Parahyangan Catholic U.
)

- Phys.Rev.D 94 (2016) 8, 085007
•
e-Print:
- 1608.05974
•
DOI:
- 10.1103/PhysRevD.94.085007

[17]

Constraining Black Hole Spin Via X-ray Spectroscopy

- Astrophys.J. 652 (2006) 1028-1043
•
e-Print:
- astro-ph/0608502
•
DOI:
- 10.1086/508146

[18]

Measuring Supermassive Black Hole Spins in Active Galactic Nuclei

Laura Brenneman
(
- Harvard-Smithsonian Ctr. Astrophys.
)

e-Print:
- 1309.6334
•
DOI:
- 10.1007/978-1-4614-7771-6

[19]

Testing general relativity with the reflection spectrum of the supermassive black hole in 1H0707 $-$ 495

Zheng Cao
(
- Fudan U.
)
,
Sourabh Nampalliwar
(
- Fudan U. and
- Tubingen U.
)
,
Cosimo Bambi
(
- Fudan U. and
- Tubingen U.
)
,
Thomas Dauser
(
- Erlangen - Nuremberg U. and
- Erlangen - Nuremberg U., ECAP
)
,
Javier A. Garcia
(
)

- Phys.Rev.Lett. 120 (2018) 5, 051101
•
e-Print:
- 1709.00219
•
DOI:
- 10.1103/PhysRevLett.120.051101

[20]

Axisymmetric Black Hole Has Only Two Degrees of Freedom

B. Carter
(
- Cambridge U., Inst. of Astron.
)

- Phys.Rev.Lett. 26 (1971) 331-333
•
DOI:
- 10.1103/PhysRevLett.26.331

[21]

Axion-dilaton cosmology and dark energy

Riccardo Catena
(
- DESY
)
,
Jan Moller
(
- DESY
)

- JCAP 03 (2008) 012
•
e-Print:
- 0709.1931
•
DOI:
- 10.1088/1475-7516/2008/03/012

[21]

Axion-dilaton cosmology and dark energy

Riccardo Catena
(
- DESY
)
,
Jan Moller
(
- DESY
)

- JCAP 03 (2008) 012
•
e-Print:
- 0709.1931
•
DOI:
- 10.1088/1475-7516/2008/03/012

[22]

Testing the Kerr metric with X-ray Reflection Spectroscopy of Mrk 335 Suzaku data

et al.

- Astrophys.J. 879 (2019) 2, 80
•
e-Print:
- 1809.06669
•
DOI:
- 10.3847/1538-4357/ab24d6

[23]

Fitting string inflation to real cosmological data: The fiber inflation case

Michele Cicoli
(
- U. Bologna, DIFA and
- INFN, Bologna
)
,
Eleonora Di Valentino
(
- Jodrell Bank
)

- Phys.Rev.D 102 (2020) 4, 043521
•
e-Print:
- 2004.01210
•
DOI:
- 10.1103/PhysRevD.102.043521

[24]

The effects of redshifts and focusing on the spectrum of an accretion disk around a Kerr black hole

C.T. Cunningham
(
- Caltech
)

- Astrophys.J. 202 (1975) 788-802
•
DOI:
- 10.1086/154033

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