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Related papers: Magnetically Active Stars in Taurus-Auriga: Evolut…

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We use TESS full-frame imaging data to investigate the angular momentum evolution of young stars in Orion Complex. We confirm recent findings that stars with rotation periods faster than 2 d are overwhelmingly binaries, with typical…

Solar and Stellar Astrophysics · Physics 2023-04-05 Marina Kounkel , Keivan G. Stassun , Lynne A. Hillenbrand , Jesús Hernández , Javier Serna , Jason Lee Curtis

Major photometric monitoring campaigns of star-forming regions in the past decade have provided rich rotation period distributions of pre-main-sequence stars. The rotation periods span more than an order of magnitude in period, with most…

Astrophysics · Physics 2007-05-23 Robert D. Mathieu

We report new dynamical masses for 5 pre-main sequence (PMS) stars in the L1495 region of the Taurus star-forming region (SFR) and 6 in the L1688 region of the Ophiuchus SFR. Since these regions have VLBA parallaxes these are absolute…

Solar and Stellar Astrophysics · Physics 2017-08-09 M. Simon , S. Guilloteau , E. di Folco , A. Dutrey , N. Grosso , V. Piétu , E. Chapillon , L. Prato , G. H. Schaefer , E. Rice , Y. Boehler

The inner 0.1 AU around accreting T Tauri stars hold clues to many physical processes that characterize the early evolution of solar-type stars. The accretion-ejection connection takes place at least in part in this compact magnetized…

Astrophysics · Physics 2007-05-23 J. Bouvier , S. H. P. Alencar , T. J. Harries , C. M. Johns-Krull , M. M. Romanova

In this work, we present a systematic search for stellar groups in the Taurus field by applying DBSCAN algorithm to the data from Gaia DR2. We find 22 groups, consisting of 8 young groups (Groups 1-8) at ages of 2-4Myr and distances of…

Solar and Stellar Astrophysics · Physics 2021-05-26 Jiaming Liu , Min Fang , Hao Tian , Chao Liu , Chengqun Yang , Xiangxiang Xue

Stars and planets form in regions of enhanced stellar density, subjecting protoplanetary discs to gravitational perturbations from neighbouring stars. Observations in the Taurus star-forming have uncovered evidence of at least three recent,…

We present proper motions of 72 T Tauri stars located in the central region of Taurus-Auriga. These proper motions are taken from a new proper motion catalogue called STARNET. Our sample comprises 17 classical T Tauri stars and 55 weak-line…

Astrophysics · Physics 2007-05-23 S. Frink , S. Roeser , R. Neuhaeuser , M. F. Sterzik

We have assembled a sample of $\sim$8200 stars with spectral types F5V-M5V, all having directly measured X-ray luminosities from eROSITA and rotation periods from TESS, and having empirically estimated ages via their membership in stellar…

Solar and Stellar Astrophysics · Physics 2024-05-15 Keivan G. Stassun , Marina Kounkel

I have used high-precision photometry and astrometry from the third data release of Gaia (DR3) to perform a survey for members of the Taurus star-forming region and young associations in its vicinity. This work has produced a new catalog of…

Astrophysics of Galaxies · Physics 2023-01-18 K. L. Luhman

We present a comprehensive study of rotation, disk and accretion signatures for 144 T Tauri stars in the young (~2 Myr old) Chamaeleon I and Taurus-Auriga star forming regions based on multi-epoch high-resolution optical spectra from the…

Solar and Stellar Astrophysics · Physics 2011-02-11 Duy Cuong Nguyen , Ray Jayawardhana , Marten H. van Kerkwijk , Alexis Brandeker , Alexander Scholz , Ivana Damjanov

We report on a systematic search for X-ray emission from pre-main sequence and young main sequence stars in the Taurus-Auriga-Perseus region. Our stellar sample consists of all T Tauri stars from the Taurus-Auriga region, and all late-type…

Astrophysics · Physics 2009-11-06 B. Stelzer , R. Neuhaeuser

We use mid-IR (primarily 10 $\mu$m) photometry as a diagnostic for the presence of disks with inner cavities among 32 pre-main sequence stars in Orion and Taurus-Auriga for which rotation periods are known and which do not show evidence for…

Astrophysics · Physics 2009-10-31 Keivan G. Stassun , Robert D. Mathieu , Frederick J. Vrba , Tsevi Mazeh , Arne Henden

We study the presence and importance of stellar migration in the evolution of 17 Milky-Way like disk galaxies with stellar mass $10 < \textrm{log}(M_{*}/{\rm M}_\odot) < 11$ from the Auriga suite of zoom-in cosmological hydrodynamical…

Astrophysics of Galaxies · Physics 2022-06-22 Periklis Okalidis , Robert J. J. Grand , Robert M. Yates , Volker Springel

We present a multi-epoch radio study of the Taurus-Auriga star-forming complex made with the Karl G. Jansky Very Large Array at frequencies of 4.5 GHz and 7.5 GHz. We detect a total of 610 sources, 59 of which are related to young stellar…

The evolution of magnetic fields in Ap stars during the main sequence phase is presently mostly unconstrained by observation because of the difficulty of assigning accurate ages to known field Ap stars. We are carrying out a large survey of…

Astrophysics · Physics 2015-05-13 J. D. Landstreet , S. Bagnulo , V. Andretta , L. Fossati , E. Mason , J. Silaj , G. A. Wade

Context. In multiple pre-main-sequence systems the lifetime of circumstellar disks appears to be shorter than around single stars, and the actual dissipation process may depend on the binary parameters of the systems. Aims. We report high…

Solar and Stellar Astrophysics · Physics 2017-07-12 Gergely Csépány , Mario van den Ancker , Péter Ábrahám , Rainer Köhler , Wolfgang Brandner , Felix Hormuth , Hector Hiss

To understand the formation of stellar groups, one must first document carefully the birth pattern within real clusters and associations. In this study of Taurus-Auriga, we combine pre-main-sequence ages from our own evolutionary tracks…

Astrophysics · Physics 2009-11-07 Francesco Palla , Steven W. Stahler

Stars with convective envelopes display magnetic activity, which decreases over time due to the magnetic braking of the star. This age-dependence of magnetic activity is well-studied for younger stars, but the nature of this dependence for…

Solar and Stellar Astrophysics · Physics 2017-08-16 R. S. Booth , K. Poppenhaeger , C. A. Watson , V. Silva Aguirre , S. J. Wolk

Aims: In a recent study, we derived individual distances for 109 pre-main sequence stars that define the Lupus kinematic association of young stars. Here, we use these new distances to derive the masses and ages of Lupus T Tauri stars with…

Solar and Stellar Astrophysics · Physics 2015-07-22 P. A. B. Galli , C. Bertout , R. Teixeira , C. Ducourant

The Taurus-Auriga association and its associated molecular cloud are a benchmark population for studies of star and planet formation. The census of Taurus-Auriga has been assembled over seven decades and has inherited the biases,…