Dr Barry Smalley's Outputs (5)

Synthesis of the Beryllium 3131A Spectral Region (2005)
Presentation / Conference Contribution
Ashwell, J., F. Ashwell, J., Jeffries, R., D. Jeffries, R., & Smalley, B. (2005, July 11-15). Synthesis of the Beryllium 3131A Spectral Region [Paper presentation]. International Workshop on ATLAS12 and Related Codes: Application to Elemental Abundance Determination, Trieste, Italy. http://arxiv.org/abs/astro-ph/0509537v1

The Beryllium spectral region of the Sun, Procyon and 4 stars in the open cluster NGC6633 up to Teff = 7500K have been synthesised using ATLAS9 model atmospheres and the MOOG spectral synthesis program. The line list used for these syntheses has bee... Read More about Synthesis of the Beryllium 3131A Spectral Region.

Different convection models in ATLAS (2005)
Presentation / Conference Contribution
Smalley, B. (2005). Different convection models in ATLAS. Mem.Soc.Ast.It. 71 (2004) 1, 75(1), 1 - ?. https://doi.org/10.48550/arXiv.astro-ph/0509536

Convection is an important phenomenon in the atmospheres of A-type and cooler stars. A description of convection in ATLAS models is presented, together with details of how it is specified in model calculations. The effects of changing the treatment o... Read More about Different convection models in ATLAS.

Teff and log g Determinations (2005)
Presentation / Conference Contribution
Smalley, B. (2005). Teff and log g Determinations. Mem.Soc.Ast.It., 8(130). https://arxiv.org/abs/astro-ph/0509535

A discussion on the determination of effective temperature (Teff) and surface gravity (log g) is presented. The observational requirements for model-independent fundamental parameters are summarized, including an assessment of the accuracy of these v... Read More about Teff and log g Determinations.

Observations of convection in A-type stars (2005)
Presentation / Conference Contribution
Smalley, B. (2005). Observations of convection in A-type stars. Proceedings of the International Astronomical Union, 2004(IAUS224), 131 - 138. https://doi.org/10.1017/S1743921304004478

Convection and turbulence in stellar atmospheres have a significant effect on the emergent flux from A-type stars. The recent theoretical advancements in convection modelling have proved a challenge to the observers to obtain measurements with suffic... Read More about Observations of convection in A-type stars.

The ASTRA Spectrophotometer: A July 2004 Progress Report (2005)
Presentation / Conference Contribution
Pazder, J., J. Adelman, S., Younger, P., F. Gulliver, A., Boyd, L., Epand, D., S. Pazder, J., Adelman, S., F. Younger, P., Gulliver, A., & Smalley, B. (2005). The ASTRA Spectrophotometer: A July 2004 Progress Report. Proceedings of the International Astronomical Union, 2004(IAUS224), 911 - 920. https://doi.org/10.1017/S1743921305009968

A cross-dispersed spectrophotometer with CCD detector and its automated 0.5-m telescope at the Fairborn Observatory, now under construction, should begin observations in 6 to 9 months. The Citadel ASTRA Telescope will be able to observe Vega the prim... Read More about The ASTRA Spectrophotometer: A July 2004 Progress Report.