Subaru through a different lens: microlensing by extended dark matter structures

Abstract

We investigate gravitational microlensing signals produced by a spatially extended object transiting in front of a finite-sized source star. The most interesting features arise for lens and source sizes comparable to the Einstein radius of the setup. Using this information, we obtain constraints from the Subaru-HSC survey of M31 on the dark matter populations of NFW subhalos and boson stars of asteroid to Earth masses. These lens profiles capture the qualitative behavior of a wide range of dark matter substructures. We find that deviations from constraints on point-like lenses (e.g. primordial black holes and MACHOs) become visible for lenses of radius 0.1 $R_{\odot }$ and larger, with the upper bound on lens masses weakening with increasing lens size.

arXiv comment5 pages, 4 figures

References in corpus (22)

• The Structure of Cold Dark Matter Halos
• MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
• MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the construction of stellar isochrones
• LCDM-based models for the Milky Way and M31 I: Dynamical Models
• Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
• Effect of Primordial Black Holes on the Cosmic Microwave Background and Cosmological Parameter Estimates
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• The Circular Velocity Curve of the Milky Way from $5$ to $25$ kpc
• The Panchromatic Hubble Andromeda Treasury
• Femtolensing by Dark Matter Revisited
• The Panchromatic Hubble Andromeda Treasury X. Ultraviolet to Infrared Photometry of 117 Million Equidistant Stars
• Improved constraints on the primordial power spectrum at small scales from ultracompact minihalos
• Revisiting constraints on asteroid-mass primordial black holes as dark matter candidates
• EROS and MACHO Combined Limits on Planetary Mass Dark Matter in the Galactic Halo
• Updated Constraints on Asteroid-Mass Primordial Black Holes as Dark Matter
• Structure Formation and Microlensing with Axion Miniclusters
• Searching for the QCD Axion with Gravitational Microlensing
• Gravitational microlensing by dark matter in extended structures
• On the wave optics effect on primordial black hole constraints from optical microlensing search
• Imprints of the Early Universe on Axion Dark Matter Substructure
• Microlensing of X-ray Pulsars: a Method to Detect Primordial Black Hole Dark Matter
• Hydrogen Clouds and the MACHO/EROS Events

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• Stellar Disruption of Axion Miniclusters in the Milky Way
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• Gravitational microlensing by dressed primordial black holes
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• The Milky Way, Coming into Focus: Precision Astrometry Probes its Evolution, and its Dark Matter
• Future Constraints on Primordial Black Holes from XGIS-THESEUS
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• Axion star condensation around primordial black holes and microlensing limits
• Microlensing signatures of extended dark objects using machine learning
• Through the Looking Glass into the Dark Dimension: Searching for Bulk Black Hole Dark Matter with Microlensing of X-ray Pulsars
• The History of Primordial Black Holes
• Gravitational wave constraints on extended dark matter structures
• Primordial black holes in non-minimal Gauss-Bonnet inflation in light of the PTA data
• New Light on Dark Extended Lenses with the Roman Space Telescope
• Astrometric Microlensing of Primordial Black Holes with Gaia
• Repository for extended dark matter object constraints
• Can a Breakdown of Hawking Evaporation Open a New Mass Window for Primordial Black Holes as Dark Matter?
• Cosmic microwave background constraints on extended dark matter objects
• Limits on the Primordial Black Holes Dark Matter with future MeV detectors
• Toward More Realistic Mass Functions For Ultradense Dark Matter Halos
• Method to search for inspiraling planetary-mass ultra-compact binaries using the generalized frequency-Hough transform in LIGO O3a data
• Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
• Primordial black holes in SB SUSY Gauss-Bonnet inflation
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• Diffuse X-Ray and Gamma-Ray Limits on Boson Stars that Interact with Nuclei
• Can QCD Axion Stars explain Subaru HSC microlensing?
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• Dark Classification Matters: Searching for Primordial Black Holes with LSST
• Cosmological abundance of primordial black holes in mixed dark matter scenarios incorporating Kaluza-Klein dark matter
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• Caustic crossings in giant arcs with extended dark matter objects
• Dimming Starlight with Dark Compact Objects
• Inflationary $\alpha$-Attractor Models with Singular Derivative of Potential
• The Dark Dimension, the Swampland, and the Dark Matter Fraction Composed of Primordial Black Holes
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