Results 21 to 30 of about 12,001 (263)
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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, 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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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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The Coronal Evolution Of Pre-Main-Sequence Stars
The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS19), 2016 Contributed talk, plenary session.
Gregory, Scott G. +2 more
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GalaxiesWe report new medium-resolution spectroscopy covering the wavelength range from 0.6 to 2.4 μm, as well as multi-epoch, multi-wavelength photometry, of the Class I high-mass embedded young stellar object Mol 12 (IRAS 05373+2349). It is embedded (AV≃12) in
Mauricio Tapia +3 more
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Tracing early stellar evolution with asteroseismology: pre-main sequence stars in NGC 2264
EPJ Web of Conferences, 2015 Asteroseismology has been proven to be a successful tool to unravel details of the internal structure for different types of stars in various stages of their main sequence and post-main sequence evolution.
Zwintz Konstanze +4 more
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Limits on the magnetic flux of a pre-main sequence star [PDF]
International Astronomical Union Colloquium, 1991 AbstractWe attempt to detect a magnetic field on the weak T Tauri star, TAP35, via the enhanced equivalent widths of Zeeman-broadened absorption lines. We synthesize 25 Fe I lines, having a range of Zeeman sensitivities, using an LTE Stokes line-transfer calculation.
G. Basri, G.W. Marcy
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IRAC Observations of Taurus Pre–Main‐Sequence Stars [PDF]
The Astrophysical Journal, 2005 We present infrared photometry obtained with the IRAC camera on the Spitzer Space Telescope of a sample of 82 pre-main sequence stars and brown dwarfs in the Taurus star-forming region. We find a clear separation in some IRAC color-color diagrams between objects with and without disks. A few ``transition'' objects are noted, which correspond to systems
Hartmann, Lee +7 more
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Open Astronomy, 2010 Using photometric data of infrared surveys, young stellar object (YSO) status is verified for 141 objects selected in our previous papers in the Cassiopeia and Camelopardalis segment of the Milky Way bounded by Galactic coordinates (l, b) = (132-158 ...
Straižys V., Kazlauskas A.
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