Results 21 to 30 of about 216,058 (291)
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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Pre-main sequence stars in the Lagoon Nebula (M8) [PDF]
, 2006 We report the discovery of new pre-main sequence (PMS) stars in the Lagoon Nebula (M8) at a distance of 1.25 kpc, based on intermediate resolution spectra obtained with the Boller & Chivens spectrograph at the 6.5-m Magellan I telescope (Las Campanas ...
Arias +35 more
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THE HABITABLE ZONES OF PRE-MAIN-SEQUENCE STARS [PDF]
The Astrophysical Journal, 2014 We calculate the pre-main-sequence HZ for stars of spectral classes F to M. The spatial distribution of liquid water and its change during the pre-main-sequence phase of protoplanetary systems is important in understanding how planets become habitable.
Ramirez, Ramses M., Kaltenegger, Lisa
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, 2023 Summary of dissertation for the degree of Doctor of Sciences, Dissertation language: Bulgarian, DSc awarded 2023 by the Institute of Astronomy and NAO of the Bulgarian Academy of ...
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Nonradial Oscillations on a Pre–Main‐Sequence Star [PDF]
The Astrophysical Journal, 2007 We show that the modes observed on the pulsating pre-main-sequence (PMS) star NGC 6383 170 can be interpreted as a combination of radial and nonradial p-modes. Using a dense grid of PMS models and oscillation spectra, we have identified models that match the observed oscillation spectrum within 1 σ of the frequency uncertainties and are consistent with
Zwintz, Konstanze +2 more
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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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Long-term optical photometric monitoring of the FUor star V900 Mon [PDF]
Serbian Astronomical Journal, 2021 We present results from photometric monitoring of V900 Mon, one of the newly discovered and still under-studied object from the FU Orionis type. The FUor phenomenon is very rarely observed, but it is essential for stellar evolution.
Semkov E.H., Peneva S.P., Ibryamov S.I.
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Simulations of Stellar Collisions Involving Pre-Main Sequence Stars
, 2005 In this paper, we present the results of smoothed particle hydrodynamic (SPH) simulations of collisions between pre-main sequence stars and a variety of other kinds of stars. Simulations over a range of impact parameters and velocities were performed. We
Alison Sills +3 more
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Asteroseismology of pre-main sequence stars [PDF]
Communications in Asteroseismology, 2009 Intermediate-mass pre-main sequence (PMS) stars cross the instability region on their way to the main sequence and can become pulsationally unstable. The δ Scuti-like PMS pulsators populate the same area in the Hertzsprung-Russell (HR) diagram as the classical δ Scuti stars.
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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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