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Related papers: The first rotation periods in Praesepe

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Recent BRITE-Constellation space photometry of the slowly rotating, magnetic $\beta$ Cep pulsator $\xi^1$ CMa permits a new analysis of its pulsation properties. Analysis of the two-colour BRITE data reveals the well-known single pulsation…

Solar and Stellar Astrophysics · Physics 2020-01-22 G. A. Wade , A. Pigulski , S. Begy , M. Shultz , G. Handler , J. Sikora , H. Neilson , H. Cugier , C. Erba , A. F. J. Moffat , B. Pablo , A. Popowicz , W. Weiss , K. Zwintz

We report on the results of an i-band time-series photometric survey of NGC 2516 using the CTIO 4m Blanco telescope and 8k Mosaic-II detector, achieving better than 1% photometric precision per data point over 15<~i<~19. Candidate cluster…

We present new models for the rotational evolution of solar-like stars between 1 Myr and 10 Gyr with the aim to reproduce the distributions of rotational periods observed for star forming regions and young open clusters within this age…

Solar and Stellar Astrophysics · Physics 2015-06-16 Florian Gallet , Jérôme Bouvier

We have determined new rotation periods for 404 stars in the Orion Nebula Cluster using the Wide Field Imager attached to the MPG/ESO 2.2 m telescope on La Silla, Chile. Mass estimates are available for 335 of these and most have M < 0.3…

Astrophysics · Physics 2009-11-06 W. Herbst , C. A. L. Bailer-Jones , R. Mundt

Stellar rotation periods measured in open clusters have proved to be extremely useful for studying stars' angular momentum content and rotationally driven magnetic activity, which are both age- and mass-dependent processes. While period…

Solar and Stellar Astrophysics · Physics 2016-05-25 Kevin R. Covey , Marcel A. Agüeros , Nicholas M. Law , Jiyu Liu , Aida Ahmadi , Russ Laher , David Levitan , Branimir Sesar , Jason Surace

[Abridged] In this paper, we present the results of a photometric survey to identify low mass and brown dwarf members of the old open cluster Praesepe (age of 590[+150][-120]Myr and distance of 190[+6.0][-5.8]pc) and use this to infer its…

Solar and Stellar Astrophysics · Physics 2011-03-31 S. Boudreault , C. A. L. Bailer-Jones , B. Goldman , T. Henning , J. A. Caballero

Open clusters offer us the means to study stellar properties in samples with well-defined ages and initial chemical composition. Here we present a survey of projected rotational velocities for a large sample of mainly B-type stars in young…

Astrophysics · Physics 2008-11-26 Wenjin Huang , Douglas R. Gies

We study the four-dimensional relationships between magnetic activity, rotation, mass and age for solar-type stars in the age range 5-25Myr. This is the late-pre-main sequence (l-PMS) evolutionary phase when rapid changes in star's interior…

Solar and Stellar Astrophysics · Physics 2023-07-26 Konstantin V. Getman , Eric D. Feigelson , Gordon P. Garmire

We report on the results of a V and i-band time-series photometric survey of M34 (NGC 1039) using the Wide Field Camera (WFC) on the Isaac Newton Telescope (INT), achieving better than 1% precision per data point for 13 <~ i <~ 17.…

We critically examine the constraints on internal angular momentum transport which can be inferred from the spin down of open cluster stars. The rotation distribution inferred from rotation velocities and periods are consistent for larger…

Solar and Stellar Astrophysics · Physics 2014-11-20 Pavel A. Denissenkov , Marc Pinsonneault , Donald M. Terndrup , Grant Newsham

With the aim of investigating the binary population of the 700 Myr old Praesepe cluster, we have observed 149 G and K-type cluster members using adaptive optics. We detected 26 binary systems with an angular separation ranging from less…

Astrophysics · Physics 2009-11-06 J. Bouvier , G. Duchene , J. -C. Mermilliod , T. Simon

Young star clusters enable us to study the effects of stellar rotation on an ensemble of stars of the same age and across a wide range in stellar mass and are therefore ideal targets for understanding the consequences of rotation on stellar…

We report periods for 33 members of Blanco 1 as measured from KELT-South light curves, the first reported rotation periods for this benchmark zero-age-main-sequence open cluster. The distribution of these stars spans from late-A or early-F…

Solar and Stellar Astrophysics · Physics 2015-06-18 P. A. Cargile , D. J. James , J. Pepper , R. B. Kuhn , R. Siverd , K. G. Stassun

B-type stars are known to rotate at various velocities, including very fast rotators near the critical velocity as the Be stars. In this paper, we provide stellar models covering the mass range between 1.7 to 15 Msun, which includes the…

Solar and Stellar Astrophysics · Physics 2015-06-15 Cyril Georgy , Sylvia Ekström , Anahí Granada , Georges Meynet , Nami Mowlavi , Patrick Eggenberger , André Maeder

We use Kepler/K2 lightcurves to measure rotation periods of brown dwarfs and very low mass stars in the Upper Scorpius star-forming region. Our sample comprises a total of 104 periods. Depending on the assumed age of Upper Scorpius, about a…

Earth and Planetary Astrophysics · Physics 2019-02-27 Keavin Moore , Aleks Scholz , Ray Jayawardhana

We present a detailed analysis of stellar rotation along the main sequences of NGC 1866 and NGC 1856, two young (~200-300 Myr) massive clusters in the Large Magellanic Cloud, using MUSE integral field spectroscopy. Differences in stellar…

Young (125 Myr), populous ($>$1000 members), and relatively nearby, the Pleiades has provided an anchor for stellar angular momentum models for both younger and older stars. We used K2 to explore the distribution of rotation periods in the…

The rotational and magnetic properties of many magnetic hot stars are poorly characterized, therefore the MiMeS and BinaMIcS collaborations have collected extensive high-dispersion spectropolarimetric datasets of these targets. We present…

Solar and Stellar Astrophysics · Physics 2018-01-24 M. E. Shultz , G. A. Wade , Th. Rivinius , C. Neiner , E. Alecian , D. Bohlender , D. Monin , J. Sikora , the MiMeS , BinaMIcS Collaborations

Rotation and magnetic activity are intimately linked in main-sequence stars of G or later spectral types. The presence and level of magnetic activity depend on stellar rotation, and rotation itself is strongly influenced by strength and…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Messina , P. Parihar , J. -R. Koo , S. -L. Kim , S. -C. Rey , C. -U. Lee

Context. The dynamical evolution of open clusters in the tidal field of the Milky Way and the feeding of the disc field star population depend strongly on the initial conditions at the time of gas removal. Detailed dynamical models tailored…

Astrophysics of Galaxies · Physics 2025-11-03 L. Weis , C. West , A. Just , P. Berczik , M. Ishchenko , S. Röser , E. Schilbach , B. Shukirgaliyev