Dark matter “transporting” mechanism explaining positron excesses by Doojin Kim, Jong-Chul Park, Seodong Shin

“…The novelty behind the proposal is that it makes direct use of DM around the Galactic Center where DM populates most densely, allowing us to avoid tensions from cosmological and astrophysical measurements. …”
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The inert doublet model in the light of Fermi-LAT gamma-ray data: a global fit analysis by Benedikt Eiteneuer, Andreas Goudelis, Jan Heisig

“…We, moreover, study in how far the model is compatible with a possible dark matter explanation of the so-called Galactic center excess. We find two distinct parameter space regions that are consistent with existing constraints and can simultaneously explain the excess: One with dark matter masses near the Higgs resonance and one around 72 GeV where dark matter annihilates predominantly into pairs of virtual electroweak gauge bosons via the four-vertex arising from the inert doublet’s kinetic term. …”
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Testing dark matter distributions by neutrino–dark matter interactions by A.V. Penacchioni, O. Civitarese, C. R. Argüelles

“…For the case of the NFW and isotropic DM distributions the expected effects at Earth, for neutrinos coming from an extragalactic source, are noticeable while in the case of the RAR distribution the effects are restricted to a narrow region around the galactic center.…”
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Anomalies in the gamma-ray diffuse emission of the Galaxy and implications for the interpretation of IceCube results by Grasso D., Gaggero D., Marinelli A., Taoso M., Urbano A., Valli M.

“…We show that a phenomenological model accounting for those results in terms of spatial dependent CR transport also reproduces the γ -ray excess found by Milagro at 15 TeV in the inner Galactic plane and by H.E.S.S. in the Galactic center. We then use that model to compute the neutrino emission along the Galactic plane finding that is significantly larger than expected on the basis of conventional models. …”
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Neutrinos below 100 TeV from the southern sky employing refined veto techniques to IceCube data

“…For the IceCube Neutrino Observatory located at the South Pole, the southern sky, containing the inner part of the Galactic plane and the Galactic Center, is a particularly challenging region at these energies, because of the large background of atmospheric muons. …”
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ANTARES and IceCube Combined Search for Neutrino Point-like and Extended Sources in the Southern Sky

“…In addition, special focus is given to the region around the Galactic Center, whereby a dedicated search at the location of SgrA∗ is performed, and to the location of the supernova remnant RXJ 1713.7-3946. …”
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Microlensing Optical Depth of the COBE Bulge by Bissantz, N, Englmaier, P, Binney, J, Gerhard, O

“…For three models with bar major axis between $10\deg-25\deg$ from the Sun-Galactic Center line, the resulting optical depths in Baade's window lie in the range $0.83\times10^{-6} \lta \tau \lta 0.89\times10^{-6}$ for main-sequence stars and $1.2\times10^{-6} \lta \tau \lta 1.3\times10^{-6}$ for red-clump giants. …”

Pulsar Timing Response to Gravitational Waves with Spherical Wave Fronts from a Massive Compact Source in the Quadrupole Approximation by Ryousuke Kubo, Kakeru Yamahira, Hideki Asada

“…By using the new formulae, effects beyond the plane-wave approximation are discussed, and a galactic center PTA and nearby GW source candidates are also mentioned.…”
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The contribution of unresolved sources on the gamma-ray spectrum of molecular clouds by Vecchiotti Vittoria, Peron Giada, Pagliaroli Giulia, Villante Francesco Lorenzo

“…If this signal is associated with the “truly” diffuse emission produced by the interaction of cosmic rays (CRs) with the interstellar medium (ISM) then its observed spectral features can be interpreted as indirect evidence of a CR spectral hardening toward the Galactic center. However, in order to correctly interpret the data, the contribution from unresolved sources has to be taken into account. …”
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Very high energy sky monitoring with the Southern Widefield Gamma-ray Observatory by La Mura Giovanni, Barres de Almeida Ulisses, Longo Francesco

“…In the high energy domain, on the contrary, it will benefit from the optimal coverage of the Galactic Plane to map the distribution of UHE sources in the inner parts of the Galactic disk and close to the Galactic Center, leading to an extraordinary improvement in our ability to identify their most likely counterparts. …”
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Neutron Stars and Dark Matter by Antonino Del Popolo, Morgan Le Delliou, Maksym Deliyergiyev

“…Moving towards the galactic center, the density increase in dark matter results in increased accretion. …”
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Bounds on dark matter interpretation of Fermi-LAT GeV excess by Kyoungchul Kong, Jong-Chul Park

“…In optimistic case, diffuse radio emission from nearby galaxy (clusters) and the galactic center might provide another hint or limit on dark matter annihilation.…”
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The Effect of a Spiral Density Wave on the Galaxy’s Rotation Curve, as Applied to the Andromeda Galaxy (M31) by Miroslava Vukcevic

“…The rotational velocity curve, which is the circular velocity profile of the stars and gas in a spiral galaxy as a function of their distance from the galactic center, plays an important role in the kinematic and dynamic investigation of spiral galaxies. …”
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Integral Field Spectroscopic Data Reduction Method for High Resolution Infrared Observation by Sungho Lee, Soojong Pak, Minho Choi

“…This technic has been applied to a sample data set of diffuse 2.1218 μm H2 1-0 S(1) emission features observed by slit-scanning around Sgr A East in the Galactic center. Details of image processing for the high-dispersion infrared data are described to suggest a sequence of contamination cleaning and distortion correction. …”
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Boosted dark matter signals uplifted with self-interaction by Kyoungchul Kong, Gopolang Mohlabeng, Jong-Chul Park

“…Yet its pair annihilation in the galactic center or in the Sun may produce boosted stable particles, which could be detected as visible Cherenkov light in large volume neutrino detectors. …”
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Vacuum Polarization Instead of “Dark Matter” in a Galaxy by Sergey L. Cherkas, Vladimir L. Kalashnikov

“…As a result, a “dark” galactical halo appears that increases the rotation velocity of a test particle as a function of the distance from a galactic center. The second type of vacuum polarization has a more complicated equation of state. …”
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Measurement of the Central Galactic Black Hole by Extremely Large Mass-Ratio Inspirals by Shu-Cheng Yang, Hui-Jiao Luo, Yuan-Hao Zhang, Chen Zhang

“…In the galaxy, extremely large mass-ratio inspirals (X-MRIs) composed of brown dwarfs and the massive black hole at the galactic center are expected to be promising gravitational wave sources for space-borne detectors. …”
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Indirect detection of dark matter with (pseudo)-scalar interactions by Simone Biondini, Julian Bollig, Stefan Vogl

“…Annihilations in dwarf galaxies and the Galactic Center require special care and we derive generalized J-factors for these objects that account for the non-trivial velocity dependence of the cross sections in our model. …”
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Cepstrum Analysis of Terrestrial Impact Crater Records by Heon-Young Chang, Cheongho Han

“…As a result of the analysis we have found noticeable peaks in the Fourier power spectrum appear ing at periods of Myrs and Myrs, which seem in a simple resonance with the revolution period of the Sun around the Galactic center. Finally we briefly discuss its implications and suggest theoretical study be pursued to explain such a long-term periodicity.…”
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Observational tests of asymptotically flat $${{\mathcal {R}}}^{2}$$ R 2 spacetimes by Tao Zhu, Hoang Ky Nguyen, Mustapha Azreg-Aïnou, Mubasher Jamil

“…We utilize several recent solar system experiments and observations of the S2 star in the galactic center and the black hole shadow. By calculating the effects of Buchdahl-inspired spacetimes on astronomical observations both within and outside of the solar system, including the deflection angle of light by the Sun, gravitational time delay, perihelion advance, shadow, and geodetic precession, we determine observational constraints on the corresponding deviation parameters by comparing theoretical predictions with the most recent observations. …”
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