Galactic binaries can explain the Fermi Galactic centre excess and 511 keV emission - INSPIRE

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Galactic binaries can explain the Fermi Galactic centre excess and 511 keV emission

Richard Bartels
(
- U. Amsterdam, GRAPPA
)
,
Francesca Calore
(
- Annecy, LAPTH
)
,
Emma Storm
(
- U. Amsterdam, GRAPPA
)
,
Christoph Weniger
(
- U. Amsterdam, GRAPPA
)

Mar 12, 2018

16 pages

Published in:

Mon.Not.Roy.Astron.Soc. 480 (2018) 3, 3826-3841

Published: Nov 1, 2018

e-Print:

1803.04370 [astro-ph.HE]

DOI:

10.1093/mnras/sty2135 (publication)

View in:

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Abstract: (Oxford University Press)

The Fermi–LAT Galactic Centre excess and the 511 keV positron-annihilation signal from the inner Galaxy bear a striking morphological similarity. We propose that both can be explained through a scenario in which millisecond pulsars produce the Galactic Centre excess and their progenitors, low-mass X-ray binaries, the 511 keV signal. As a proof of principle, we study a specific population synthesis scenario from the literature involving so-called ultracompact X-ray binaries. Moreover, for the first time, we quantitatively show that neutron star, rather than black hole, low-mass X-ray binaries can be responsible for the majority of the positrons. In this particular scenario, binary millisecond pulsars can be both the source of the Fermi–LAT γ-ray excess and the bulge positrons. Future avenues to test this scenario are discussed.

Note:

11 pages, 5 figures, appendix, comments welcome

gamma-rays : general
Galaxy : bulge
pulsars : general
stars : jets
X-rays : binaries
X-ray: binary
galaxy: binary
positron
pulsar
GLAST

References(140)

Figures(9)

The Consistency of Fermi-LAT Observations of the Galactic Center with a Millisecond Pulsar Population in the Central Stellar Cluster

Kevork N. Abazajian
(
- Maryland U.
)

- JCAP 03 (2011) 010
•
e-Print:
- 1011.4275
•
DOI:
- 10.1088/1475-7516/2011/03/010

Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission

Kevork N. Abazajian
(
- UC, Irvine
)
,
Manoj Kaplinghat
(
- UC, Irvine
)

- Phys.Rev.D 86 (2012) 083511,
- Phys.Rev.D 87 (2013) 129902 (erratum)
•
e-Print:
- 1207.6047
•
DOI:
- 10.1103/PhysRevD.86.083511

Astrophysical and Dark Matter Interpretations of Extended Gamma-Ray Emission from the Galactic Center

- Phys.Rev.D 90 (2014) 2, 023526
•
e-Print:
- 1402.4090
•
DOI:
- 10.1103/PhysRevD.90.023526

Fermi-LAT Observations of High-Energy $\gamma$ -Ray Emission Toward the Galactic Center

Fermi-LAT

Collaboration

•

M. Ajello
(
- Clemson U.
)

et al.

- Astrophys.J. 819 (2016) 1, 44
•
e-Print:
- 1511.02938
•
DOI:
- 10.3847/0004-637X/819/1/44

Submitted to: Astrophys. J

Ajello

Monte Carlo modelling of the propagation and annihilation of nucleosynthesis positrons in the Galaxy

- Astron.Astrophys. 564 (2014) A108
•
e-Print:
- 1402.6110
•
DOI:
- 10.1051/0004-6361/201322393

A Radio Pulsar/X-ray Binary Link

et al.

- Science 324 (2009) 1411
•
e-Print:
- 0905.3397
•
DOI:
- 10.1126/science.1172740

Accretion-powered pulsations in an apparently quiescent neutron star binary

et al.

- Astrophys.J. 807 (2015) 1, 62
•
e-Print:
- 1412.1306
•
DOI:
- 10.1088/0004-637X/807/1/62

The ultracompact nature of the black hole candidate X-ray binary 47 Tuc X9

et al.

- Mon.Not.Roy.Astron.Soc. 467 (2017) 2, 2199-2216
•
e-Print:
- 1702.02167
•
DOI:
- 10.1093/mnras/stx166

On the Origin of the 511 keV Emission in the Galactic Centre

- Mon.Not.Roy.Astron.Soc. 392 (2009) 1115
•
e-Print:
- 0810.3674
•
DOI:
- 10.1111/j.1365-2966.2008.14113.x

Strong support for the millisecond pulsar origin of the Galactic center GeV excess

- Phys.Rev.Lett. 116 (2016) 5, 051102
•
e-Print:
- 1506.05104
•
DOI:
- 10.1103/PhysRevLett.116.051102

b

Bartels
,
Hooper
,
Linden
,
Mishra-Sharma
,
Rodd

et al.

a

Bartels
,
Storm
,
Weniger
,
Calore

A state change in the low-mass X-ray binary XSS J12270−4859

et al.

- Mon.Not.Roy.Astron.Soc. 441 (2014) 2, 1825-1830
•
e-Print:
- 1402.0765
•
DOI:
- 10.1093/mnras/stu708

Stringent constraint on galactic positron production

John F. Beacom
(
- Ohio State U. and
- Ohio State U., Dept. Astron.
)
,
Hasan Yuksel
(
- Ohio State U.
)

- Phys.Rev.Lett. 97 (2006) 071102
•
e-Print:
- astro-ph/0512411
•
DOI:
- 10.1103/PhysRevLett.97.071102

Galactic populations of ultracompact binaries

- Astrophys.J. 603 (2004) 690-696
•
e-Print:
- astro-ph/0307492
•
DOI:
- 10.1086/381491

Compact object modeling with the startrack population synthesis code

Krzystof Belczynski
(
- New Mexico State U.
)
,
Vassiliki Kalogera
(
- Northwestern U.
)
,
Frederic A. Rasio
(
- Northwestern U.
)
,
Ronald E. Taam
(
- Northwestern U.
)
,
Andreas Zezas
(
- Harvard-Smithsonian Ctr. Astrophys.
)

et al.

- Astrophys.J.Suppl. 174 (2008) 223
•
e-Print:
- astro-ph/0511811
•
DOI:
- 10.1086/521026

van den Heuvel E. P. J

Bhattacharya

- Phys.Rept. 203 (1991) 1-124
•
DOI:
- 10.1016/0370-1573(91)90064-S

Relativistic jets as compact radio sources

- Astrophys.J. 232 (1979) 34
•
DOI:
- 10.1086/157262

MeV dark matter: Has it been detected?

Celine Boehm
(
- Oxford U.
)
,
Dan Hooper
(
- Oxford U.
)
,
Joseph Silk
(
- Oxford U. and
- Paris, Inst. Astrophys.
)
,
Michel Casse
(
- Paris, Inst. Astrophys. and
- Saclay
)
,
Jacques Paul
(
- Saclay and
- Paris U. VII, APC
)

- Phys.Rev.Lett. 92 (2004) 101301
•
e-Print:
- astro-ph/0309686
•
DOI:
- 10.1103/PhysRevLett.92.101301

Identification of the High-energy Gamma-ray Source 3fgl J1544.6–1125 as a Transitional Millisecond Pulsar Binary in an Accreting State

- Astrophys.J.Lett. 803 (2015) 2, L27
•
e-Print:
- 1503.01698
•
DOI:
- 10.1088/2041-8205/803/2/L27

On the morphology of the electron-positron annihilation emission as seen by SPI/INTEGRAL

- Astrophys.J. 720 (2010) 1772-1780
•
e-Print:
- 1007.4753
•
DOI:
- 10.1088/0004-637X/720/2/1772

Disrupted Globular Clusters Can Explain the Galactic Center Gamma Ray Excess

- Astrophys.J. 812 (2015) 1, 15
•
e-Print:
- 1507.05616
•
DOI:
- 10.1088/0004-637X/812/1/15

A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics

Francesca Calore
(
- U. Amsterdam, GRAPPA
)
,
Ilias Cholis
(
- Fermilab
)
,
Christopher McCabe
(
- U. Amsterdam, GRAPPA
)
,
Christoph Weniger
(
- U. Amsterdam, GRAPPA
)

- Phys.Rev.D 91 (2015) 6, 063003
•
e-Print:
- 1411.4647
•
DOI:
- 10.1103/PhysRevD.91.063003

Background Model Systematics for the Fermi GeV Excess

Francesca Calore
(
- U. Amsterdam, GRAPPA
)
,
Ilias Cholis
(
- Fermilab
)
,
Christoph Weniger
(
- U. Amsterdam, GRAPPA
)

- JCAP 03 (2015) 038
•
e-Print:
- 1409.0042
•
DOI:
- 10.1088/1475-7516/2015/03/038

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