Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades by White, TR, Pope, BJS, Antoci, V, Pápics, PI, Aerts, C, Gies, DR, Gordon, K, Huber, D, Schaefer, GH, Aigrain, S, Albrecht, S, Barclay, T, Barentsen, G, Beck, PG, Bedding, TR, Andersen, M, Grundahl, F, Howell, SB, Ireland, MJ, Murphy, SJ, Nielsen, MB, Aguirre, V, Tuthill, PG

“…We apply this method to the seven brightest stars in the Pleiades open cluster. Each star exhibits variability; six of the stars show what are most-likely slowly pulsating B-star (SPB) pulsations, with amplitudes ranging from 20 to 2000 ppm. …”

WOCS 4540: Detailed Analysis of a very Long Orbital Period Blue Straggler by Meng Sun, Robert D. Mathieu

“…WOCS 4540 is the longest orbital period ( P _orb = 3030 days) blue straggler star (BSS)—white dwarf (WD) pair in the old open cluster NGC 188. It also contains one of the most luminous BSS in the cluster. …”
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The Radiative–Convective Gap: Fact or Fiction? by Wolfgang Brandner, Artur Sorg, Siegfried Röser, Elena Schilbach

“…Gaia characterizes the stellar populations of nearby open clusters with unprecedented precision. We investigate the Böhm-Vitense gap, which has been found as a prominent feature in the stellar sequence of open clusters. …”
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Stellar Rotation and Structure of the α Persei Complex: When Does Gyrochronology Start to Work? by Andrew W. Boyle, Luke G. Bouma

“…The exact time at which the transition between these two regimes occurs depends on stellar mass, and has been challenging to empirically resolve due to a lack of viable calibration clusters. The α Persei open cluster ( t ≈ 80 Myr, d ≈ 170 pc) may provide the needed calibrator, but recent analyses of the Gaia data have provided wildly varying views of its age and spatial extent. …”
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Metabolites That Confirm Induction and Release of Dormancy Phases in Sweet Cherry Buds by Klaus-P. Götz, Frank-M. Chmielewski

“…After ‘swollen bud’, water content raised from ~60 to ~80% at open cluster, while chrysin content decreased and lost its function as an acetylcholinesterase inhibitor. …”
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Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory by Sang Hyun Lee, Yong-Woo Kiang, Kyung-Hoon Lee

“…To define the quality of CCD photometry, we observed the region of well-known standard stars in the open cluster M67. From observed data, The transformation coefficients and airmass coefficients were obtained, and the accuracy of CCD photometry was investigated. …”
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Magnetic Braking with MESA Evolutionary Models in the Single Star and Low-mass X-Ray Binary Regimes by Seth Gossage, Vicky Kalogera, Meng Sun

“…None of the braking prescriptions tested are able to replicate the stalled spin down observed in open cluster stars aged 700–1000 Myr or so, with masses ≲0.8 M _⊙ .…”
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Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602

“…We find that TOI 837 is a T = 9.9 mag G0/F9 dwarf in the southern open cluster IC 2602. The star and planet are therefore million years old. …”
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The K2 M67 study: Establishing the limits of stellar rotation period measurements in M67 with K2 campaign 5 data by Esselstein, R, Aigrain, S, Vanderburg, A, Smith, J, Meibom, S, Van Saders, J, Mathieu, R

“…The open cluster M67 offers a unique opportunity to measure rotation periods for solar-age stars across a range of masses, potentially filling a critical gap in the understanding of angular momentum loss in older main sequence stars. …”

Revisit of 77 Clusters Candidates with Multiple Main Sequences using Gaia DR3 by Jing Chen, Zhongmu Li, Su Zhang, Wenchang Zhao, You Wu

“…Gaia DR3 data provide the latest and full astrometric data for more than 1.5 billion sources, and these allow us to revisit the 77 special open cluster candidates collected from LISC star cluster catalog. …”
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The Empirical Limits of Gyrochronology by Luke G. Bouma, Elsa K. Palumbo, Lynne A. Hillenbrand

“…In this work, we present an interpolation-based gyrochronology framework that reproduces the time- and mass-dependent spin-down rates implied by the latest open cluster data, while also matching the rate at which the dispersion in initial stellar rotation periods decreases as stars age. …”
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Cost-Effectiveness and Cost?Benefit Analyses of Providing Menstrual Cups and Sanitary Pads to Schoolgirls in Rural Kenya by Masih A. Babagoli, Anja Benshaul-Tolonen, Garazi Zulaika, Elizabeth Nyothach, Clifford Oduor, David Obor, Linda Mason, Emily Kerubo, Isaac Ngere, Kayla F. Laserson, Rhiannon Tudor Edwards, Penelope A. Phillips-Howard

“…benefit analyses of three-arm single-site open cluster randomized controlled pilot study providing menstrual cups or sanitary pads for 1 year. …”
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Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602 by Ricker, George R, Vanderspek, Roland K, Burke, Christopher J., Levine, Alan M, Seager, Sara

“…We find that TOI 837 is a T = 9.9 mag G0/F9 dwarf in the southern open cluster IC 2602. The star and planet are therefore million years old. …”
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Distance determination for RAVE stars using stellar models by Breddels, M, Smith, M, Helmi, A, Bienaymé, O, Binney, J, Bland-Hawthorn, J, Boeche, C, Burnett, B, Campbell, R, Freeman, K, Gibson, B, Gilmore, G, Grebel, E, Munari, U, Navarro, J, Parker, Q, Seabroke, G, Siebert, A, Siviero, A, Steinmetz, M, Watson, F, Williams, M, Wyse, R, Zwitter, T

“…This method is tested with artificial data, Hipparcos trigonometric parallaxes and observations of the open cluster M67. Results: When we applied our method to a set of 16 146 stars, we found that 25% (4037) of the stars have relative (statistical) distance errors of <35%, while 50% (8073) and 75% (12 110) have relative (statistical) errors smaller than 45% and 50%, respectively. …”

Understanding angular momentum evolution of solar-age stars with K2 data by Esselstein, R

“…Well-calibrated with open clusters up to the age of ~2.5 Gyr, predictions from gyrochronology are in conflict with asteroseismic observations of older stars, and the underlying physics are poorly understood. …”

The wide-field, multiplexed, spectroscopic facility WEAVE: survey design, overview, and simulated implementation by Jin, S, Trager, S, Dalton, GB, Aguerri, JAL, Drew, J, Falcón-Barroso, J, Gänsicke, B, Hill, V, Iovino, A, Pieri, M, Poggianti, B, Smith, D, Vallenari, A, Abrams, DC, Aguado, D, Ascasibar, Y, Belokurov, V, Laigle, C, Molaeinezhad, A, Terrett, D, Gilbert, J, Hughes, S, Jarvis, M, Lewis, I, Peirani, S, Schallig, E, Stott, J

“…After summarising the design and implementation of WEAVE and its data systems, we present the organisation, science drivers and design of a five- to seven-year programme of eight individual surveys to: (i) study our Galaxy’s origins by completing Gaia’s phase-space information, providing metallicities to its limiting magnitude for ∼3 million stars and detailed abundances for ∼1.5 million brighter field and open-cluster stars; (ii) survey ∼0.4 million Galactic-plane OBA stars, young stellar objects and nearby gas to understand the evolution of young stars and their environments; (iii) perform an extensive spectral survey of white dwarfs; (iv) survey ∼400 neutral-hydrogen-selected galaxies with the IFUs; (v) study properties and kinematics of stellar populations and ionised gas in z < 0.5 cluster galaxies; (vi) survey stellar populations and kinematics in ∼25 000 field galaxies at 0.3 ≲ z ≲ 0.7; (vii) study the cosmic evolution of accretion and star formation using >1 million spectra of LOFAR-selected radio sources; (viii) trace structures using intergalactic/circumgalactic gas at z > 2. …”

Distance determination for RAVE stars using stellar models by Breddels, M, Smith, M, Helmi, A, Bienayme, O, Binney, J, Bland-Hawthorn, J, Boeche, C, Burnett, B, Campbell, R, Freeman, K, Gibson, B, Gilmore, G, Grebel, E, Munari, U, Navarro, J, Parker, Q, Seabroke, G, Siebert, A, Siviero, A, Steinmetz, M, Watson, F, Williams, M, Wyse, R, Zwitter, T

“…This method is tested with artificial data, Hipparcos trigonometric parallaxes and observations of the open cluster M67. Results: When we applied our method to a set of 16 146 stars, we found that 25% (4 037) of the stars have relative (statistical) distance errors of &lt; 35%, while 50% (8 073) and 75% (12 110) have relative (statistical) errors smaller than 45% and 50%, respectively. …”

Internal Calibration of LAMOST and Gaia DR3 GSP-Spec Stellar Abundances by Zexi Niu, Haibo Yuan, Jifeng Liu

“…The chemical homogeneity of the open cluster M 44 is also improved by a factor of two. …”
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Transitory Tidal Heating and Its Impact on Cluster Isochrones by S. Jane Arthur, Gloria Koenigsberger, Kristin Brady, Diana Estrella-Trujillo, Catherine Pilachowski

“…In this paper we explore the impact of injecting heat into stars with masses near the main-sequence turnoff mass (1.26 M _⊙ ) of the open cluster M67. The heating rate is obtained from the tidal shear energy dissipation rate, which is calculated from first principles by simultaneously solving the equations that describe orbital motion and the response of a star’s layers to the gravitational, Coriolis, centrifugal, gas pressure, and viscous forces. …”
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M67 Blue Stragglers with High-resolution Infrared Spectroscopy by K. E. Brady, C. Sneden, C. A. Pilachowski, Melike Afşar, G. N. Mace, D. T. Jaffe, N. M. Gosnell, R. Seifert

“…We report on the first detailed infrared chemical analysis of five binary members (S277, S997, S975, S1031, and S1195) in the open cluster M67 (NGC 2682). These stars are located outside (bluer and/or brighter than) the main-sequence turnoff region in M67. …”
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