A 4.46 solar-mass black hole is found in a 94-year eccentric orbit with a main-sequence turnoff star in ω Centauri via 23-year astrometric monitoring.
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@doi [ ] 10.1086/118116, http://adsabs.harvard.edu/abs/1996AJ....112.1487H 112
20 Pith papers cite this work, alongside 4,558 external citations. Polarity classification is still indexing.
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A new histogram-free likelihood method applied to simulated JWST observations of brown dwarfs shows that globular cluster ages can be determined with formal errors under 0.2 Gyr.
Blue straggler stars in old open clusters exhibit a Kraft break in rotation, with rapid rotators above the break and slow rotators below, indicating their envelopes behave like those of single stars.
In nine of 22 globular clusters the most extreme second-population stars are underrepresented on the AGB relative to the RGB, with anomalous stars showing even stronger AGB-manqué signatures.
A cosmological simulation with tidally compressive cluster formation and compact-object heating yields globular cluster populations consistent with observations.
Bi-CFM learns bidirectional mappings between initial and final state distributions to solve ill-posed inverse problems in chaotic systems, reporting metric improvements and speedups on Lorenz variants plus conservation-respecting results on three-body and globular cluster data.
High-resolution zoom-in simulation of a z~10 galaxy produces over 10^5 star clusters with scale-free mass function, 90% of star formation in clusters, global SFE 0.2-0.3, and reproduces JWST super-bright galaxies via feedback-free bursts.
Koposov 2 is an ancient, extremely metal-poor, compact stellar system best explained as a dissolving globular cluster, not a dwarf galaxy.
Blue straggler stars in old open clusters predominantly appear near the terminal-age main sequence because mass transfer from asymptotic giant branch donors enriches their cores with helium.
The Gaia-Sausage-Enceladus merger occurred 11.2 ± 0.1 Gyr ago, coinciding with the formation of a group of globular clusters and potentially leaving ω Centauri as its remnant, while placing disk formation at z ≳ 4.
Bulge Fossil Fragments are estimated to generate 15-250 times more binary black hole mergers than typical globular clusters, marking them as a new class of gravitational wave sources.
Simulations identify black hole-giant collisions as the main formation channel for ultracompact black hole-white dwarf binaries in globular clusters, with mock catalogs suggesting order-one LISA-detectable sources in the Milky Way.
Binary fractions in elliptical galaxies remain approximately flat with radius once stellar population variations are subtracted, showing less than 5% change at one effective radius for nearly all galaxies studied.
Stacking FAST power spectra reveals six faint isolated millisecond pulsars in NGC 6517 and M15, three of which standard frequency-domain and FFA searches miss.
High-metallicity star cluster simulations produce black hole mergers with masses and ratios consistent with recent LVK detections, unlike low-metallicity models.
The paper reports 21 previously unknown variable stars in M71 along with refined cluster parameters (age 12.9 Gyr, [Fe/H] = -0.88, E(B-V) = 0.21, distance modulus 13.01) from a decontaminated CMD.
Photometric metallicities from DECam identify 213 Jet stream candidates and detect fanning in the stream morphology.
New abundance measurements for NGC 6723 align its chemical patterns with other metal-intermediate globular clusters rather than indicating a transition to metal-rich properties.
SKA-MID and SKA-LOW are predicted to discover 150–1700 new pulsars in Galactic globular clusters, more than doubling the current population of 345.
citing papers explorer
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A Long Period Stellar-Mass Black Hole Binary in $\omega$ Centauri
A 4.46 solar-mass black hole is found in a 94-year eccentric orbit with a main-sequence turnoff star in ω Centauri via 23-year astrometric monitoring.
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New Way to Date Globular Clusters: Brown Dwarf Cooling Sequences
A new histogram-free likelihood method applied to simulated JWST observations of brown dwarfs shows that globular cluster ages can be determined with formal errors under 0.2 Gyr.
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Blue Straggler Stars in Old Open Clusters and the Kraft Break
Blue straggler stars in old open clusters exhibit a Kraft break in rotation, with rapid rotators above the break and slow rotators below, indicating their envelopes behave like those of single stars.
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Multiple populations along the asymptotic giant branch: a Gaia+APOGEE study of 22 Galactic globular clusters
In nine of 22 globular clusters the most extreme second-population stars are underrepresented on the AGB relative to the RGB, with anomalous stars showing even stronger AGB-manqué signatures.
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Introducing AuriGLOBES: The effects of compressive tides, compact object-induced mass loss, and size evolution on modelling globular clusters
A cosmological simulation with tidally compressive cluster formation and compact-object heating yields globular cluster populations consistent with observations.
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Solving Inverse Problems of Chaotic Systems with Bidirectional Conditional Flow Matching
Bi-CFM learns bidirectional mappings between initial and final state distributions to solve ill-posed inverse problems in chaotic systems, reporting metric improvements and speedups on Lorenz variants plus conservation-respecting results on three-body and globular cluster data.
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Feedback-Free Star Formation in Clusters within a Galaxy Simulated at High Resolution in Cosmic Dawn
High-resolution zoom-in simulation of a z~10 galaxy produces over 10^5 star clusters with scale-free mass function, 90% of star formation in clusters, global SFE 0.2-0.3, and reproduces JWST super-bright galaxies via feedback-free bursts.
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The Hubble Missing Globular Clusters Survey IV. Ultra-faint compact satellites of the Milky Way. The case of Koposov 2
Koposov 2 is an ancient, extremely metal-poor, compact stellar system best explained as a dissolving globular cluster, not a dwarf galaxy.
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The Distribution of Blue Straggler Stars in the Color-Magnitude Diagrams of Old Open Clusters
Blue straggler stars in old open clusters predominantly appear near the terminal-age main sequence because mass transfer from asymptotic giant branch donors enriches their cores with helium.
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The Last Galactic Firework: Timing the last significant merger with stars, globular clusters and $\omega$Centauri
The Gaia-Sausage-Enceladus merger occurred 11.2 ± 0.1 Gyr ago, coinciding with the formation of a group of globular clusters and potentially leaving ω Centauri as its remnant, while placing disk formation at z ≳ 4.
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Bulge Fossil Fragments as a new population of factories of gravitational wave sources in the Galaxy
Bulge Fossil Fragments are estimated to generate 15-250 times more binary black hole mergers than typical globular clusters, marking them as a new class of gravitational wave sources.
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Formation of Black Hole-White Dwarf X-ray Binaries in Globular Clusters
Simulations identify black hole-giant collisions as the main formation channel for ultracompact black hole-white dwarf binaries in globular clusters, with mock catalogs suggesting order-one LISA-detectable sources in the Milky Way.
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Radial Profiles of Binary Fraction in Elliptical Galaxies
Binary fractions in elliptical galaxies remain approximately flat with radius once stellar population variations are subtracted, showing less than 5% change at one effective radius for nearly all galaxies studied.
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The Stack Search Tests on FAST Data: Discovery of Six Faint Isolated Millisecond Pulsars in NGC 6517 and NGC 7078 (M15)
Stacking FAST power spectra reveals six faint isolated millisecond pulsars in NGC 6517 and M15, three of which standard frequency-domain and FFA searches miss.
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Red vs. Blue: How metallicity shapes black hole dynamics and mergers in dense star clusters
High-metallicity star cluster simulations produce black hole mergers with masses and ratios consistent with recent LVK detections, unlike low-metallicity models.
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Variable stars in the field of the Galactic globular cluster M71
The paper reports 21 previously unknown variable stars in M71 along with refined cluster parameters (age 12.9 Gyr, [Fe/H] = -0.88, E(B-V) = 0.21, distance modulus 13.01) from a decontaminated CMD.
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The DECam MAGIC Survey: Investigating the Jet Stellar Stream with Photometric Metallicities
Photometric metallicities from DECam identify 213 Jet stream candidates and detect fanning in the stream morphology.
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Chemical abundances in the metal-intermediate GC NGC 6723
New abundance measurements for NGC 6723 align its chemical patterns with other metal-intermediate globular clusters rather than indicating a transition to metal-rich properties.
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Pulsars in Globular Clusters With the SKAO
SKA-MID and SKA-LOW are predicted to discover 150–1700 new pulsars in Galactic globular clusters, more than doubling the current population of 345.
- Inferring Globular Cluster Initial Mass Function from Stellar Streams