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A Grid of Non‐LTE Line‐blanketed Model Atmospheres of O‐Type Stars
Open accessAbstract
We have constructed a comprehensive grid of 680 metal line-blanketed, non-LTE, plane-parallel, hydrostatic model atmospheres for the basic parameters appropriate to O-type stars. The OSTAR2002 grid considers 12 values of effective temperatures, 27,500 K ≤ T eff ≤ 55,000 K with 2500 K steps, eight surface gravities, 3.0 ≤ log g ≤ 4.75 with 0.25 dex steps, and 10 chemical compositions, from metal-rich relative to the Sun to metal-free. The lower limit of log g for a given effective temperature is set by an approximate location of the Eddington limit. The selected chemical compositions have been chosen to cover a number of typical environments of massive stars: the Galactic center, the Magellanic Clouds, blue compact dwarf galaxies like I Zw 18, and galaxies at high redshifts. The paper contains a description of the OSTAR2002 grid and some illustrative examples and comparisons. The complete OSTAR2002 grid is available on-line.
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Cited by
INTRINSIC COLORS, TEMPERATURES, AND BOLOMETRIC CORRECTIONS OF PRE-MAIN-SEQUENCE STARS
Pecaut, M. J., & Mamajek, E. E. (2013) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/208/1/9 · Cited by 2,407
A new calibration of stellar parameters of Galactic O stars
Martins, F., Schaerer, D., & Hillier, D. J. (2005) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20042386 · Cited by 1,120
Evolutionary stellar population synthesis at high spectral resolution: optical wavelengths
Delgado, R. M. G., Cerviño, M., Martins, L. P., Leitherer, C., & Hauschildt, P. H. (2005) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2005.08692.x · Cited by 337
Ionizing Photon Emission Rates from O‐ and Early B‐Type Stars and Clusters
Sternberg, A., Hoffmann, T. L., & Pauldrach, A. W. A. (2003) · The Astrophysical Journal · doi:10.1086/379506 · Cited by 205
Metadata
- Authors
- Lanz, T., & Hubeny, I.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 2003-06
- Volume
- 146
- Issue
- 2
- Pages
- 417-441
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2114246636
- Cited by
- 739
- References
- 0
- FWCI
- 16.62
- Type
- journal article
- Language
- en
- Open access
- bronze
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