Mildly boosted dark matter annihilation and reconciling indirect galactic signals - INSPIRE

DataBETA

Mildly boosted dark matter annihilation and reconciling indirect galactic signals

Steven J. Clark
(
- Maryland U.
)

Jun 18, 2024

6 pages

e-Print:

2406.13056 [astro-ph.CO]

View in:

ADS Abstract Service

reference search0 citations

Citations per year

0 Citations

Abstract: (arXiv)

The galactic center excess is a possible non-gravitational observation of dark matter; however, the canonical dark matter model (thermal freeze-out) is in conflict with other gamma-ray observations, in particular those made of the Milky Way's satellite dwarf galaxies. Here we consider the effects of a two-component dark matter model which results in minimally boosted particles that must remain bound to their host galaxy in order to produce an observational signal. This leads to a signal that is heavily dependent on galactic scale and can help reconcile the differences in the galactic center and dwarf galaxy measurements under the dark matter paradigm.

Note:

6 pages, 3 figures

References(31)

Figures(2)

[1]

Possible Evidence For Dark Matter Annihilation In The Inner Milky Way From The Fermi Gamma Ray Space Telescope

Lisa Goodenough
(
- New York U., CCPP
)
,
Dan Hooper
(
- Fermilab and
- Chicago U., Astron. Astrophys. Ctr.
)

e-Print:
- 0910.2998

[2]

Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope

Dan Hooper
(
- Fermilab and
- Chicago U., Astron. Astrophys. Ctr.
)
,
Lisa Goodenough
(
- New York U.
)

- Phys.Lett.B 697 (2011) 412-428
•
e-Print:
- 1010.2752
•
DOI:
- 10.1016/j.physletb.2011.02.029

[3]

The Fermi Galactic Center GeV Excess and Implications for Dark Matter

Fermi-LAT

Collaboration

•

M. Ackermann
(
- DESY, Zeuthen
)

et al.

- Astrophys.J. 840 (2017) 1, 43
•
e-Print:
- 1704.03910
•
DOI:
- 10.3847/1538-4357/aa6cab

[4]

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

[5]

WIMPs at the Galactic Center

- JCAP 05 (2015) 011
•
e-Print:
- 1411.2592
•
DOI:
- 10.1088/1475-7516/2015/05/011

[6]

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

[7]

Exclusion of canonical WIMPs by the joint analysis of Milky Way dwarfs with Fermi

Alex Geringer-Sameth
(
- Brown U.
)
,
Savvas M. Koushiappas
(
- Brown U.
)

- Phys.Rev.Lett. 107 (2011) 241303
•
e-Print:
- 1108.2914
•
DOI:
- 10.1103/PhysRevLett.107.241303

[8]

Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

M. Ackermann
(
- Stanford U., HEPL and
- Taiwan, Natl. Taiwan U. and
- SLAC
)

et al.

- Phys.Rev.Lett. 107 (2011) 241302
•
e-Print:
- 1108.3546
•
DOI:
- 10.1103/PhysRevLett.107.241302

[9]

Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

M. Ackermann
(
- DESY
)

et al.

- Phys.Rev.D 89 (2014) 042001
•
e-Print:
- 1310.0828
•
DOI:
- 10.1103/PhysRevD.89.042001

[10]

Comprehensive search for dark matter annihilation in dwarf galaxies

Alex Geringer-Sameth
(
- Carnegie Mellon U. and
- Brown U.
)
,
Savvas M. Koushiappas
(
- Brown U.
)
,
Matthew G. Walker
(
- Carnegie Mellon U.
)

- Phys.Rev.D 91 (2015) 8, 083535
•
e-Print:
- 1410.2242
•
DOI:
- 10.1103/PhysRevD.91.083535

[11]

Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data

Fermi-LAT

Collaboration

•

M. Ackermann
(
- DESY
)

et al.

- Phys.Rev.Lett. 115 (2015) 23, 231301
•
e-Print:
- 1503.02641
•
DOI:
- 10.1103/PhysRevLett.115.231301

[12]

Multimessenger constraints on the dark matter interpretation of the Fermi-LAT Galactic center excess

- Phys.Rev.D 103 (2021) 12, 123005
•
e-Print:
- 2101.11027
•
DOI:
- 10.1103/PhysRevD.103.123005

[13]

Confronting Galactic center and dwarf spheroidal gamma-ray observations with cascade annihilation models

- Phys.Rev.D 92 (2015) 7, 075019
•
e-Print:
- 1508.05989
•
DOI:
- 10.1103/PhysRevD.92.075019

[14]

Probing dark matter annihilation in the Galaxy with antiprotons and gamma rays

Alessandro Cuoco
(
- RWTH Aachen U.
)
,
Jan Heisig
(
- RWTH Aachen U.
)
,
Michael Korsmeier
(
- RWTH Aachen U. and
- INFN, Turin and
- Turin U.
)
,
Michael Krämer
(
- RWTH Aachen U.
)

- JCAP 10 (2017) 053
•
e-Print:
- 1704.08258
•
DOI:
- 10.1088/1475-7516/2017/10/053

[15]

Sommerfeld-Enhanced $J$ -Factors For Dwarf Spheroidal Galaxies

- Phys.Rev.D 95 (2017) 12, 123008
•
e-Print:
- 1702.00408
•
DOI:
- 10.1103/PhysRevD.95.123008

[16]

On velocity-dependent dark matter annihilations in dwarf satellites

Mihael Petac
(
- SISSA, Trieste and
- INFN, Trieste
)
,
Piero Ullio
(
- SISSA, Trieste and
- INFN, Trieste
)
,
Mauro Valli
(
- INFN, Rome
)

- JCAP 12 (2018) 039
•
e-Print:
- 1804.05052
•
DOI:
- 10.1088/1475-7516/2018/12/039

[17]

Effective J -factor of the Galactic Center for velocity-dependent dark matter annihilation

Kimberly K. Boddy
(
- Johns Hopkins U.
)
,
Jason Kumar
(
- Hawaii U.
)
,
Louis E. Strigari
(
- Texas A-M
)

- Phys.Rev.D 98 (2018) 6, 063012
•
e-Print:
- 1805.08379
•
DOI:
- 10.1103/PhysRevD.98.063012

[18]

Angular distribution of gamma-ray emission from velocity-dependent dark matter annihilation in subhalos

Kimberly K. Boddy
(
- Johns Hopkins U.
)
,
Jason Kumar
(
- Hawaii U.
)
,
Jack Runburg
(
- Hawaii U.
)
,
Louis E. Strigari
(
- Texas A-M
)

- Phys.Rev.D 100 (2019) 6, 063019
•
e-Print:
- 1905.03431
•
DOI:
- 10.1103/PhysRevD.100.063019

[19]

Effective $J$ -factors for Milky Way dwarf spheroidal galaxies with velocity-dependent annihilation

Kimberly K. Boddy
(
- Johns Hopkins U.
)
,
Jason Kumar
(
- U. Hawaii, Honolulu
)
,
Andrew B. Pace
(
- TAMU, College Station and
- Carnegie Mellon U.
)
,
Jack Runburg
(
- U. Hawaii, Honolulu
)
,
Louis E. Strigari
(
- TAMU, College Station
)

- Phys.Rev.D 102 (2020) 2, 023029
•
e-Print:
- 1909.13197
•
DOI:
- 10.1103/PhysRevD.102.023029

[20]

$J$ -factors for velocity-dependent dark matter annihilation

- Phys.Rev.D 106 (2022) 2, 023025
•
e-Print:
- 2110.09653
•
DOI:
- 10.1103/PhysRevD.106.023025

[21]

Phenomenology of Dark Matter annihilation into a long-lived intermediate state

- JCAP 07 (2009) 018
•
e-Print:
- 0903.3116
•
DOI:
- 10.1088/1475-7516/2009/07/018

[22]

X-ray line from exciting dark matter

Douglas P. Finkbeiner
(
- Harvard U., Phys. Dept. and
- Harvard-Smithsonian Ctr. Astrophys.
)
,
Neal Weiner
(
- New York U., CCPP and
- New York U.
)

- Phys.Rev.D 94 (2016) 8, 083002
•
e-Print:
- 1402.6671
•
DOI:
- 10.1103/PhysRevD.94.083002

[23]

Wobbly Dark Matter Signals at Cherenkov Telescopes from Long Lived Mediator Decays

Stefania Gori
(
- UC, Santa Cruz and
- UC, Santa Cruz (main)
)
,
Stefano Profumo
(
- UC, Santa Cruz and
- UC, Santa Cruz (main)
)
,
Bibhushan Shakya
(
- UC, Santa Cruz and
- UC, Santa Cruz (main)
)

- Phys.Rev.Lett. 122 (2019) 19, 191103
•
e-Print:
- 1812.08694
•
DOI:
- 10.1103/PhysRevLett.122.191103

[24]

Nonlocal effects from boosted dark matter in indirect detection

Kaustubh Agashe
(
- Maryland U.
)
,
Steven J. Clark
(
- Brown U.
)
,
Bhaskar Dutta
(
- Texas A-M
)
,
Yuhsin Tsai
(
- Maryland U. and
- Notre Dame U.
)

- Phys.Rev.D 103 (2021) 8, 083006
•
e-Print:
- 2007.04971
•
DOI:
- 10.1103/PhysRevD.103.083006

[25]

Semi-analytic models for dark matter halos

Lawrence M. Widrow

e-Print:
- astro-ph/0003302

1-25 of 31
1
2
25 / page