Type-III two Higgs doublet model plus a pseudoscalar confronted with h→μτ, muon g−2 and dark matter by Xuewen Liu, Ligong Bian, Xue-Qian Li, Jing Shu

“…Moreover, the recently observed Galactic Center gamma ray excess (GCE) is proposed to realize through dark matter (DM) pair annihilations, and in this work, the scenario of the annihilation being mediated by the pseudoscalar is also addressed.…”
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Time-series surveys and pulsating stars: The near-infrared perspective by Matsunaga Noriyuki

“…We then review the recent results on classical Cepheids towards the Galactic center and the bulge, as a case study, to see the impact of the uncertainty in the extinction law. …”
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Fermi bubbles as sources of cosmic rays above 1 PeV by Chernyshov Dmitry, Cheng Kwong-Sang, Dogiel Vladimir, Ko Chung-Ming

“…Fermi bubbles are giant gamma-ray structures extended north and south of the Galactic center with characteristic sizes of the order of 10 kpc discovered by the Fermi Large Area Telescope. …”
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Collider probes of singlet fermionic dark matter scenarios for the Fermi gamma-ray excess by Yeong Gyun Kim, Chan Beom Park, Seodong Shin

“…Abstract We investigate the collider signatures of three benchmark points in the singlet fermionic dark matter model motivated by the Fermi gamma-ray excess at the Galactic center. The benchmark points are classified according to the final state of the main dark annihilation process: a pair of b quarks, Higgs bosons and new scalar bosons. …”
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Self-Similar Solution of Hot Accretion Flow with Anisotropic Pressure by De-Fu Bu, Pei-Yao Xu, Bo-Cheng Zhu

“…For the accretion flow in extremely low-luminosity active galactic nuclei, such as our Galactic center (Sgr A*) and M 87, the collisional mean-free path of ions may be much larger than its gyroradius. …”
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Testing alternative theories of gravity by fitting the hot-spot data of Sgr A* by Misbah Shahzadi, Martin Kološ, Zdeněk Stuchlík, Yousaf Habib

“…Abstract We are fitting dynamics of electrically neutral hot-spot orbiting around Sagittarius A* (Sgr A*) source in Galactic center, represented by various modifications of the standard Kerr black hole (BH), to the three flares observed by the GRAVITY instrument on May 27, July 22, July 28, 2018. …”
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U(1)Lμ−Lτ for light dark matter, gμ − 2, the 511 keV excess and the Hubble tension by Manuel Drees, Wenbin Zhao

“…Together with the new gauge boson X, we find a possible parameter space with mX≃20 MeV, U(1)Lμ−Lτ coupling gX≃5⋅10−4 and mψ≳mX/2 where the (g−2)μ anomaly, dark matter, the Hubble tension, and (part of) the excess of 511 keV photons from the region near the galactic center can be explained simultaneously. This model is safe from current experimental and astrophysical constraints, but can be probed by the next generation of neutrino experiments as well as low–energy e+e− colliders.…”
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Search of amino group in the Universe: 2-aminopyridine by Sharma M.K., Sharma M., Sharma A.K., Chandra S.

“…The aminoacetonitrile (NH2CH2CN), which is precursor of the simplest amino acid glycine (NH2CH2COOH), is identified near the galactic center. The 2-Aminopyridine (H2NC5H4N) is of interest for scientists as it has a close association with life on the earth. …”
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Tidal Resonance in Extreme Mass-Ratio Inspirals by Bonga, Béatrice, Yang, Huan, Hughes, Scott A

“…Observations by the Laser Interferometer Space Antenna of EMRI systems therefore have the potential to provide information about the distribution of stellar-mass objects near their host galactic-center black holes.…”
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Illuminating the Nature of Dark Matter through Observation, Simulation and Machine Learning by Sun, Yitian

“…Specifically, I explore using the echoes of astrophysical radio sources to probe axion dark matter, self-consistently simulating dark matter energy injection in the era of reionization, employing simple Neural Networks to improve these early universe simulations, and utilizing Machine Learning-powered inference techniques to tackle the problem of the Galactic Center 1-ray Excess.…”
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On-sky performance of SPIFFI: the integral field spectrometer for SINFONI at the VLT by Iserlohe, C, Tecza, M, Eisenhauer, F, Genzel, R, Thatte, N, Abuter, R, Horrobin, M, Schegerer, A, Schreiber, J, Bonnet, H

“…Afterwards we illustrate the power of integral field spectroscopy by presenting data and results of the Galactic Center.…”

Shadows of Sgr A$$^{*}$$ ∗ black hole surrounded by superfluid dark matter halo by Kimet Jusufi, Mubasher Jamil, Tao Zhu

“…This result can be linked to the matter distribution in the galaxy, namely the baryonic matter is mostly located in the galactic center and, therefore, increasing the baryonic matter can affect the size of black hole shadow compared to the totally dominated dark matter galaxy where we observe an increase of the angular diameter of the Sgr A$$^{*}$$ ∗ black hole of the magnitude $$10^{-5}\,\upmu $$ 10-5μ arcsec.…”
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Augury of darkness: the low-mass dark Z ′ portal by Alexandre Alves, Giorgio Arcadi, Yann Mambrini, Stefano Profumo, Farinaldo S. Queiroz

“…We show that such scenarios are still rather constrained by data, and that near resonance they could accommodate the gamma-ray GeV excess in the Galactic center.…”
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Detecting the Effect of Nonthermal Sources on the Warm-hot Galactic Halo by Sanskriti Das

“…There is weak/no correlation between nonthermal line broadening and the angular separation of sightlines from the Galactic center, indicating that the nuclear region might not be a major source of nonthermal factors.…”
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Boosted dark matter at the deep underground neutrino experiment by Haider Alhazmi, Kyoungchul Kong, Gopolang Mohlabeng, Jong-Chul Park

“…In this study, we focus on the sensitivity of the far detector at the Deep Underground Neutrino Experiment for boosted dark matter produced in the center of the Sun, and compare our findings with recent results for boosted dark matter produced in the galactic center.…”
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Boosted dark matter quarrying at surface neutrino detectors by Doojin Kim, Kyoungchul Kong, Jong-Chul Park, Seodong Shin

“…To validate our claim, we study experimental reaches at several surface experiments such as SBN Program (MicroBooNE, ICARUS, and SBND) and ProtoDUNE for elastic boosted dark matter signatures stemming from the Galactic Center. We provide a systematic discussion on maximizing associated signal sensitivities.…”
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Searching for dark photon dark matter with cosmic ray antideuterons by Lisa Randall, Weishuang Linda Xu

“…Specifically the dark matter models favored by the Fermi Galactic center excess is expected to be detected or constrained at the 5(3) −σ level assuming a optimistic (conservative) propagation model.…”
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Weak deflection gravitational lensing for photons coupled to Weyl tensor in a Schwarzschild black hole by Wei-Guang Cao, Yi Xie

“…We find that, in the cases of weak deflection lensing on a star orbiting the Galactic Center Sgr A*, Galactic microlensing on a star in the bulge and astrometric microlensing by a nearby object, these effects are beyond the current limits of technology. …”
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Galactic rotation dynamics in a new $$f({\mathcal {R}})$$ f ( R ) gravity model by Nashiba Parbin, Umananda Dev Goswami

“…For this purpose we consider test particles moving in stable circular orbits around the galactic center. We study the Palatini approach of $$f(\mathcal {R})$$ f ( R ) gravity via Weyl transformation, which is the frame transformation from the Jordan frame to the Einstein frame. …”
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Bouncing black holes in quantum gravity and the Fermi gamma-ray excess by Aurélien Barrau, Boris Bolliet, Marrit Schutten, Francesca Vidotto

“…In this article, we show that this hypothesis can account for the GeV excess observed from the galactic center by the Fermi satellite. By carefully taking into account the secondary component due to the decay of unstable hadrons, we show that the model is fully self-consistent. …”
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