{"total":14,"items":[{"citing_arxiv_id":"2606.30752","ref_index":9,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Wrinkles in Time. II. Stellar Age Trends in Kinematic Signatures from Transient Spiral Structure","primary_cat":"astro-ph.GA","submitted_at":"2026-06-29T18:00:30+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Simulations show Lindblad-resonance wrinkles from non-winding spirals are filled with zero-age stars on orbits normally occupied by much older populations, offering an age-based constraint on past transient spiral patterns.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"We adopted an azimuthally sinusoidal prescription for the spiral potential, SpiralArmsPotential (Cox & Gómez 2002). This spiral potential is described by Φ𝑠 (𝑅, 𝜙, 𝑧) = − 𝐴𝑠 𝐻 exp \u0014 𝑅 − 𝑟ref 𝑅𝑠 \u0015 (5) × ∑︁ 𝐶𝑛 𝐾𝑛𝐷 𝑛 cos(𝑛𝛾)sech \u0012 𝐾𝑛𝑧 𝐵𝑛 \u0013 𝐵𝑛 , where 𝐾𝑛 = 𝑛𝑚 𝑅 sin 𝛼 , (6) 𝐵𝑛 = 𝐾𝑛𝐻 (1 + 0.4𝐾𝑛), (7) 𝐷 𝑛 = 1 + 𝐾𝑛𝐻 + 0.3(𝐾𝑛𝐻)2 1 + 0.3𝐾𝑛𝐻 (8) and 𝛾 = 𝑚 \u0014 𝜙 − 𝜙ref − ln (𝑅/𝑟ref) tan𝛼 \u0015 . (9) Here, 𝑚 is the number of spiral arms,𝛼 is the spiral arm pitchangle, 𝑟ref isthefiducialradius,and 𝜙ref isthereference angle 𝜙 𝑝 (𝑟0) where the spiral density is defined in Cox & Gómez(2002), 𝑅𝑠istheradialscalelengthforthearmdensity amplitude, 𝐻 is the spiral arm scale height, and𝐶𝑛 (here set tounitytocreateasinusoidalarmprofile)isalistofconstants"},{"citing_arxiv_id":"2606.30722","ref_index":38,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Chemical Abundances of the Bioessential Elements C, O and S, and the Refractory Elements Fe and Ni, in Solar-type Exoplanet-hosting Stars from HARPS North and South","primary_cat":"astro-ph.EP","submitted_at":"2026-06-29T18:00:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Observational study of 290 exoplanet-host stars finds higher C, O, S, Fe, Ni abundances in giant-planet hosts than small-planet hosts, with C/O ratios, hot/warm differences, and mass correlations that vary by subpopulation.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.21651","ref_index":64,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Resolved Ages and Stellar Metallicities in Progenitors of Milky Way Analogs: A Closer Look at their Star Formation Histories since $z=5$","primary_cat":"astro-ph.GA","submitted_at":"2026-06-19T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Resolved stellar property gradients in Milky Way analog progenitors show inside-out assembly with minor, temporary disruption from major mergers.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.17153","ref_index":247,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Chemical hints of Population III stars from silicon abundances in massive galaxies","primary_cat":"astro-ph.GA","submitted_at":"2026-06-15T18:00:06+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"High [Si/Mg] = 0.67 in NGC 1277 cannot be explained by standard models and suggests pair-instability supernovae from very massive early stars.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.13124","ref_index":101,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Beyond the Fundamental Metallicity Relation: galaxy sizes encode the link between inflow and metallicity","primary_cat":"astro-ph.GA","submitted_at":"2026-06-11T09:50:38+00:00","verdict":"CONDITIONAL","verdict_confidence":"MODERATE","novelty_score":6.0,"formal_verification":"none","one_line_summary":"At fixed stellar mass, inner gas mass—not size, SFR, or potential—best predicts gas metallicity, and differences in long-term inflow histories can explain the pattern.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.11594","ref_index":31,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Empirical colour--effective temperature relations in the SDSS system from IRFM temperatures of GALAH and APOGEE stars","primary_cat":"astro-ph.SR","submitted_at":"2026-06-10T02:45:37+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"New empirical color-Teff calibrations in the SDSS system from IRFM temperatures of 3902 GALAH and 2535 APOGEE stars, with 30-50 K precision for long-baseline colors.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.10623","ref_index":20,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Rogue Ones: Orbital census of Galactic Cepheids and their Anomalies","primary_cat":"astro-ph.GA","submitted_at":"2026-06-09T09:22:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"A 6D kinematic census identifies 18 anomalous Cepheids with extreme orbits, including one possibly scattered by globular cluster E3, and finds consistency between dynamical and stellar ages.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.07505","ref_index":48,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Primordial Black Hole Triggered Type Ia Supernovae II: Comparison with Supernova Remnants and Galactic Chemical Evolution","primary_cat":"astro-ph.HE","submitted_at":"2026-06-05T17:56:37+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"PBH-triggered SN Ia models across metallicities match some observed light curves and remnants, constrain the explosion channel fraction via chemical evolution modeling, and indicate PBHs as a potentially major early-universe SN Ia source.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.06457","ref_index":94,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Dynamical evolution and dissolution timescale of young stellar clusters in the Orion star-forming complex","primary_cat":"astro-ph.GA","submitted_at":"2026-06-04T17:50:17+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Gaia-derived parameters for 13 Orion clusters fed into N-body simulations reveal two regimes: seven with α_vir ≲ 7 retain bound cores for ≳170 Myr while six with α_vir ≳ 7 dissolve before 120 Myr.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.23746","ref_index":64,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Gaia-Sausage-Enceladus: Lithium evolution from early red-giant-branch and main-sequence stars","primary_cat":"astro-ph.GA","submitted_at":"2026-05-22T15:20:11+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A lithium chemical evolution model for the GSE galaxy matches survey data showing Spite-like and eRGB plateaus at low metallicity with a hint of reduced nova contributions.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.14308","ref_index":91,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Reconstructing the Stripping History of the Sagittarius Stream with Neural Networks","primary_cat":"astro-ph.GA","submitted_at":"2026-05-14T03:21:24+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"A neural network trained on simulations infers stripping times for Sagittarius stream stars from phase-space data, measuring a 0.3 dex/Gyr metallicity gradient and estimating ages for globular clusters such as Pal 12 and NGC 2419.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.11074","ref_index":233,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Observational Signatures and Constraints on the Intermediate Neutron-Capture Process. The Case of the CEMP star TYC 6044-714-1 (RAVE J094921.8-161722)","primary_cat":"astro-ph.SR","submitted_at":"2026-05-11T18:00:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"High-precision analysis of TYC 6044-714-1 favors s+r nucleosynthesis over i-process models, which require implausible conditions and mismatch Ba isotopes.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2512.01270","ref_index":1,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Egent: An Autonomous Agent for Equivalent Width Measurement","primary_cat":"astro-ph.IM","submitted_at":"2025-12-01T04:32:25+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Egent achieves raw agreement of MAD 5-7 mA with human experts on 18,615 spectral lines by using LLM-driven adjustments to fitting windows, blends, and continuum without post-hoc corrections.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1907.00987","ref_index":19,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Applying Liouville's Theorem to Gaia Data","primary_cat":"astro-ph.GA","submitted_at":"2019-07-01T18:00:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Phase-space density is recovered from Gaia data for M4 and disrupted streams by correcting entropy injection and minimizing stream entropy, enabling original mass inference via Liouville's theorem.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}