Results 21 to 30 of about 22,441 (303)
The Instability Strip for Pre–main-sequence Stars [PDF]
The Astrophysical Journal, 1998 We investigate the pulsational properties of Pre--Main-Sequence (PMS) stars by means of linear and nonlinear calculations. The equilibrium models were taken from models evolved from the protostellar birthline to the ZAMS for masses in the range 1 to 4 solar masses.
Marconi, M., Palla, F.
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Disks and Halos in Pre-Main-Sequence Stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 11 pages, 10 figures.
Vinković, Dejan +3 more
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The Effect of Pre–Main‐Sequence Stars on Star Cluster Dynamics [PDF]
The Astrophysical Journal, 2006 We investigate the effects of the addition of pre-main sequence evolution to star cluster simulations. We allowed stars to follow pre-main sequence tracks that begin at the deuterium burning birthline and end at the zero age main sequence. We compared our simulations to ones in which the stars began their lives at the zero age main sequence, and also ...
Wiersma, R. +2 more
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Massive pre-main-sequence stars in M17 [PDF]
, 2023 Context. The young massive-star-forming region M17 contains optically visible massive pre-main-sequence stars that are surrounded by circumstellar disks. Such disks are expected to disappear when these stars enter the main sequence.
Kamp, I. +19 more
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Updating the Dartmouth stellar evolution model grid: Pre-main-sequence models & magnetic fields [PDF]
, 2014 Poster from The 18th Workshop on Cool Stars, Stellar Systems, and the Sun on updating the Dartmouth stellar evolution model grid. Additions include models of pre-main-sequence stars, magnetic fields, deuterium burning, and a revised treatment of surface ...
Chaboyer, Brian +5 more
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Walkaway Star Candidates in IC 348 and Their Possible Birthplaces
The Astrophysical Journal, 2023 Observations and theories reveal that star-forming regions eject their members during the early evolution of the cluster. We present an initial search for stars ejected from the young cluster IC 348 based on an analysis of Gaia EDR3 astrometry of ...
Xingyu Zhou +4 more
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A Study of ISO Spectra for Herbig Ae/Be Stars [PDF]
Journal of Astronomy and Space Sciences, 2002 We present the infrared spectra of Herbig Ae/Be stars including the Infrared Space Observatory (ISO) data. To investigate the overall properties of their circumstellar dust envelope and/or disk, we combine the IR spectra with photometric data ranging ...
Kyung-Won Suh, Mi-Ryang Kim, Ji-Hye Baek
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XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk
The Astrophysical Journal Letters, 2023 We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions.
María Claudia Ramírez-Tannus +26 more
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Four new PLanetesimals Around TYpical and Pre-main seqUence Stars (PLATYPUS) debris discs at 8.8mm [PDF]
, 2021 Millimetre continuum observations of debris discs can provide insights into the physical and dynamical properties of the unseen planetesimals that these discs host.
Wilner, David J. +15 more
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The Rotation of Pre-Main Sequence Stars [PDF]
Highlights of Astronomy, 1980 Kraft (1970) obtained the rotational velocities for large numbers of stars located in the field and in clusters of different ages. He noted that (a) among the field stars those stars with strong Call K emission had larger rotational velocities than those without; (b) stars in the Hyades and Pleiades (which are much younger than the field) had both ...
Leonard V. Kuhi, Stuart Vogel
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