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Open research questions in Astronomy and Astrophysical Research

59 unresolved questions extracted from the limitations and future-work sections of 267 Astronomy and Astrophysical Research papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • Further study of the Galactic Center and star formation. Continued use of the ALMA Observatory to study the Central Molecular Zone. Investigation of the role of the supermassive black hole in star formation.

    Galactic Center Newsletter (Vol.XXIX / No.4) · 2026 · DOI

  • Further analysis of the SIMLA dataset to study the interstellar medium and other astrophysical objects. Development of new pipelines and algorithms to improve the reduction and validation of mid-infrared spectral cubes.

    SIMLA: The Spitzer Infrared Spectrograph Mapping Legacy Archive · 2026 · DOI

  • The lack of a complete set of mid-infrared spectral cubes from Spitzer/IRS mapping-mode fixed-target observations. The need for a pipeline to reduce and validate the cubes.

    SIMLA: The Spitzer Infrared Spectrograph Mapping Legacy Archive · 2026 · DOI

  • Developing a time-less model of a galaxy. Describing the galaxy as a stationary structure, eliminating the need for time-dependent processes. Providing a stable galaxy model without dark matter.

    QUINT‑DENSE Galaktische System‑Simulation Version 2.2 · 2026 · DOI

  • The growing number and diversity of astronomical transients discovered each year. The demand for spectroscopic followup to enable transient classification and redshift estimation. The need for a framework that can handle large-scale processing of supernova spectra.

    SNID–SAGE: a modern framework for interactive supernova classification and spectral analysis · 2026 · DOI

  • The need to restrict graph construction to sources closest to the benchmark astrometric locus. The need to evaluate the performance of the M-CTNC rule. The need to compare the results to other methods.

    A Gaia DR3 Core-membership Catalog for 359 Open Clusters from M-CTNC · 2026 · DOI

  • The study of RCL AGNs is challenging due to the need for multiepoch spectroscopic data and MIR light curves. The selection of RCL AGNs requires careful visual inspection and selection criteria. The estimation of BH masses and MIR variability timescales is subject to substantial uncertainties.

    Discovery of Repeating Transitions in 16 Changing-look Active Galactic Nuclei · 2026 · DOI

  • The complexity of the cosmic web and the need for novel approaches to capture its properties. The degeneracy between σ_8 and Ω_m and the need for methods to break it. The limited volume and resolution of current simulations.

    The network analysis of the cosmic web as a tool to constrain cosmology and cosmic magnetism · 2026 · DOI

  • To develop convergence criteria for the algorithm. To update the algorithm to use measured instrument passbands. To refine the equations to optimally treat the case of passbands with unequal noise.

    Robust joint estimation of galaxy redshift and spectral templates using online dictionary learning · 2026 · DOI

  • Existing approaches to estimate redshifts from galaxy spectra rely on limited hand-curated external template data. These approaches have limited performance due to model mismatch error.

    Robust joint estimation of galaxy redshift and spectral templates using online dictionary learning · 2026 · DOI

  • The formation of stars in the Galactic Center is a complex and poorly understood process. The role of the supermassive black hole in star formation is not well understood.

    Galactic Center Newsletter (Vol.XXIX / No.4) · 2026 · DOI

  • 5 is a strong default for probabilistic quasar photo-z estimation, particularly when training data are limited or when calibration under covariate shift is critical.

    Tabular foundation models for the estimation of probabilistic quasar photometric redshifts in S-PLUS · 2026

  • One limitation of the current SyFu algorithm is that both the imager and the IFU must observe the same FoV with complete spatial and spectral overlap (i.

    Fusion of JWST data: Demonstrating practical feasibility · 2026 · DOI

  • pl Article number, page 16 of 26 option as the structure is delimited by the ballistic dynamics of the gas, with no sign of previously ejected material around it (also discussed by Li et al.

    M1-92: Asymptotic giant branch interruption and isotopic ratio paradox. Chemistry and morpho-kinematics from improved shapemol modelling · 2026 · DOI

  • The radial extent estimates of the SiO and SiS abundance profiles increase with circumstellar gas density as ex- pected, though the observed trends are limited by the large uncer- tainties on the derived values for AFGL 3068.

    Charting circumstellar chemistry of carbon-rich asymptotic giant branch stars. III. SiO and SiS abundances · 2026 · DOI

  • Further study of the s-process nucleosynthesis in O- and C-rich evolved stars is needed. Investigation of the simultaneous increase of carbon and s-process elements. Development of theoretical AGB models that can reproduce the observed abundances.

    Tracing the s-process: spectroscopic insights into chemical abundances in O- and C-rich evolved stars · 2026 · DOI

  • To further develop the QUINT-DENSE model and test its predictions. To study the properties of galaxies without dark matter using the QUINT-DENSE model. To explore the implications of the Licht-Gravitationstheorie (LGT) for our understanding of galaxy physics.

    QUINT‑DENSE Galaktische System‑Simulation Version 2.2 · 2026 · DOI

  • To test the universality of the parameter values on larger samples. To make a clean prediction for the Radial Acceleration Relation (RAR) across a large galaxy sample.

    Modified Quantum Gravitational Theory Applied to The Rotation Curve of NGC 7793: A Gas-Coupled Quantum Alternative Explaining The Bosma Effect · 2026 · DOI

  • The standard QGT model does not provide a good fit to the observed rotation curve of NGC 7793. The Bosma effect is not explained by the standard QGT model.

    Modified Quantum Gravitational Theory Applied to The Rotation Curve of NGC 7793: A Gas-Coupled Quantum Alternative Explaining The Bosma Effect · 2026 · DOI

  • The paper identifies a gap in the understanding of physical systems across various domains. The paper identifies a need for a framework that can predict harmonic register families for various attributes.

    KishLattice Geometric Harmonic Spectroscopy: Volume 11 Pre-Registration (Multi-Attribute Sovereign Lake Expansion & Dimensionality Falsification Protocol) · 2026 · DOI

  • To use the BAGLE package to analyze gravitational lensing events from upcoming observations from space-based facilities. To prepare for upcoming Gaia data releases and the launch of the Nancy Grace Roman Space Telescope. To detect significant microlensing parallax signals for events that are 2× shorter in duration than from ground-based surveys.

    The BAGLE Python Package for Bayesian Analysis of Gravitational Lensing Events · 2026 · DOI

  • There is a need for a package that enables modeling and joint fitting of photometric and astrometric data sets for gravitational lensing events. The existing packages may have limitations in terms of their ability to model complex microlensing events.

    The BAGLE Python Package for Bayesian Analysis of Gravitational Lensing Events · 2026 · DOI

  • The growing demand for spectroscopic followup to enable transient classification and redshift estimation. The need for a framework that combines deterministic spectral pre-processing, FFT-based cross-correlation, and clustering-based consolidation.

    SNID–SAGE: a modern framework for interactive supernova classification and spectral analysis · 2026 · DOI

  • Current UV space-based instrumentation lacks the spatial resolution and sensitivity required to fully address the problem. The COS throughput sensitivity drops by roughly two-orders of magnitude below 1100 Å. Contamination from Milky Way absorption is a problem at low redshifts.

    Resolving the origins and pathways of ionizing radiation escape with UV integral field spectroscopy · 2026 · DOI

  • Future surveys can build on the CEERS survey's methods and results. Future studies can use the CEERS survey's catalog to investigate galaxy evolution. Future research can focus on improving photometric redshifts and SED fitting.

    The CEERS Photometric and Physical Parameter Catalog · 2026 · DOI

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59 open questions have been extracted from the limitations and future-work passages of 267 Astronomy and Astrophysical Research papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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