1088 papers
This paper reports the discovery and characterization of three new transiting warm Jupiters (TIC 147027702b, TIC 245076932b, and TIC 87422071b) using TESS data and ground-based follow-up observations, providing valuable benchmarks for testing models of giant-planet formation and evolution.
This study presents the first spatially resolved NIRSpec/IFU analysis of the MACS0647-JD system, revealing a merger-driven starburst fueled by turbulent, metal-poor gas inflows that create distinct chemical and kinematic differences between the system's two stellar components.
This paper demonstrates that strong non-gravitational interactions between dark matter and dark energy, which allow for negative energy densities, can naturally drive flat FLRW cosmologies to undergo either a Big Crunch turnaround or a non-singular bounce, and cyclic evolution in closed universes, without requiring modifications to general relativity.
This paper presents a matched filtering strategy and a prediction tool for the CHORD galaxy survey that demonstrates how combining data over time and using offset declination scans can effectively resolve spatial aliasing caused by the telescope's highly redundant dish layout.
This paper reports a high-significance detection of weak gravitational lensing by photometric density ridges in Dark Energy Survey Year 3 data, utilizing improved algorithms to demonstrate that the signal primarily depends on the cosmological parameter .
This paper presents an updated report on the international New Robotic Telescope (NRT) project, outlining its scientific motivation for time domain astronomy and detailing the current status and technical solutions for the proposed 4-meter fully robotic instrument at the Roque de los Muchachos Observatory.
This paper presents the New Robotic Telescope (NRT), an international project to construct the world's largest 4-meter robotic telescope on La Palma, which leverages experience from the Liverpool telescope and GTC to achieve rapid response times for leading time-domain astronomy research.
This paper describes a server system and GUI application developed to automatically retrieve, process, and store data from the SNAPPY CubeSat while maintaining a command database, with future plans to implement automated email notifications for the team.
This paper presents experimental results validating the feasibility of a graphite cube moderator for creating a standing neutron target for inverse kinematics measurements, demonstrating strong agreement between measured and simulated neutron flux distributions for a full cube setup while highlighting discrepancies in a half-cube configuration to inform future proof-of-principle campaigns.
This paper evaluates the anticipated performance of NASA's Pandora SmallSat mission, demonstrating through simulated modeling that it can constrain atmospheric abundances for a diverse range of exoplanets and significantly enhance the reliability of atmospheric characterization when used in synergy with the James Webb Space Telescope.
This paper proposes a framework demonstrating that dark matter subhaloes can erase Galactic bar resonances by diffusing stars out of their resonant action space, thereby offering a method to constrain the subhalo mass function and dark matter properties based on the observed persistence of these resonant features.
This paper demonstrates that mass-dependent relaxation and velocity anisotropy render single-scale self-similar evolution structurally unstable in multi-mass star clusters, driving a transition to multi-scale, near-homologous evolution characterized by mass segregation and direction-dependent growth rates.
This study utilizes a cosmological galaxy evolution simulation with dust treatment to demonstrate that the observed increase in dust temperature with redshift is primarily driven by higher star formation rate surface densities and lower dust-to-gas ratios, rather than variations in grain properties.
This study presents low-resolution spectroscopic measurements of systemic velocities and metallicities for five poorly known Galactic clusters, revealing that Pfleiderer 2 is likely an in-situ Milky Way object, RLGC2 and Koposov 1 are associated with the Gaia-Sausage-Enceladus and Sagittarius dwarf spheroidal accretion events respectively, while Koposov 2 and Muñoz 1 show ambiguous or tentative origins.
This paper presents the Far-Ultraviolet Extragalactic Legacy (FUEL) Survey, which utilizes 365 Hubble Space Telescope orbits to produce high-resolution FUV images and catalogs of the GOODS-S, GOODS-N, and COSMOS fields, thereby filling a critical redshift gap for studying star formation and Lyman continuum emission in galaxies between z ≈ 0 and z > 1.2.
This paper introduces a contrastive learning framework that aligns X-ray spectra with scientific literature to create shared multimodal representations, significantly improving the estimation of physical variables and enabling the discovery of rare astrophysical sources through integrated data analysis.
The paper reports the detection of MXDFz4.4, the highest-redshift Lyman continuum emitter found to date at z=4.442, which exhibits high ionizing photon escape fractions likely driven by a recent starburst and supports the use of Ly-alpha morphology as a tracer for LyC escape in the early Universe.
This study demonstrates through end-to-end simulations that NASA's Pandora SmallSat Mission can effectively correct stellar photospheric contamination in exoplanet transmission spectroscopy by inferring stellar activity parameters from contemporaneous visible and NIR observations, reducing contamination signals to negligible levels for simple spot distributions while identifying cases with complex geometries that require additional constraints.
Using deep wide-band observations from the upgraded Giant Metrewave Radio Telescope (uGMRT), this study unambiguously detects non-thermal radio emission in the Extended Orion Nebula and identifies a strong association between this emission and outflows from young stellar objects.
By analyzing 17 years of Fermi-LAT data for the blazar PG 1553+113, this study reveals that while the source exhibits chromatic flares, its 2.2-year gamma-ray quasi-periodic oscillation is achromatic, thereby supporting a geometric origin like jet precession over intrinsic plasma-driven mechanisms.