D
Derck Massa
Researcher at Space Telescope Science Institute
Publications - 103
Citations - 5012
Derck Massa is an academic researcher from Space Telescope Science Institute. The author has contributed to research in topics: Stars & O-type star. The author has an hindex of 31, co-authored 100 publications receiving 4722 citations. Previous affiliations of Derck Massa include Raytheon & Space Science Institute.
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Journal ArticleDOI
An analysis of the shapes of interstellar extinction curves. V. The IR-through-UV curve morphology
TL;DR: In this paper, the IR-through-UV wavelength dependence of 328 Galactic extinction curves affecting normal, near-main-sequence B and late O stars was analyzed using a new technique that employs stellar atmosphere models in lieu of unreddened "standard" stars.
Journal ArticleDOI
On-Orbit Performance of the Far Ultraviolet Spectroscopic Explorer Satellite
David J. Sahnow,H. W. Moos,Thomas B. Ake,Thomas B. Ake,J. Andersen,B-G Andersson,M. Andre,M. Andre,D. Artis,A. F. Berman,William P. Blair,K. R. Brownsberger,H. M. Calvani,Pierre Chayer,Pierre Chayer,Steven J. Conard,Paul D. Feldman,Scott D. Friedman,Alex W. Fullerton,Alex W. Fullerton,Geoffrey A. Gaines,W. C. Gawne,James C. Green,Mark A. Gummin,T. B. Jennings,James Joyce,Mary Elizabeth Kaiser,Jeffrey W. Kruk,D. J. Lindler,Derck Massa,Edward M. Murphy,William R. Oegerle,Raymond G. Ohl,Bryce Roberts,M. L. Romelfanger,Katherine C. Roth,Ravi Sankrit,Kenneth R. Sembach,Robin L. Shelton,O. H. W. Siegmund,C. J. Silva,George Sonneborn,S. R. Vaclavik,Harold A. Weaver,Erik Wilkinson +44 more
TL;DR: In this paper, the authors describe the results from this test program and present preliminary estimates of the on-orbit performance of the FUSE satellite based on a combination of these data and pre-launch laboratory measurements.
Journal ArticleDOI
An Analysis of the Shapes of Ultraviolet Extinction Curves. III. an Atlas of Ultraviolet Extinction Curves
TL;DR: In this article, the basic data needed to produce UV extinction curves for a sample of 78 stars, including spectral types, visual photometry, parameters used to produce fits to the UV extinction curve, distances to the program stars, and line-of-sight H I column densities, are presented.
Journal ArticleDOI
The Discordance of Mass-Loss Estimates for Galactic O-Type Stars
TL;DR: In this paper, the mass-loss rate and the ion fraction of P+4, Mq(P+4), were determined for a sample of 40 Galactic O-type stars by fitting stellar wind profiles to observations of the P v resonance doublet obtained with FUSE, ORFEUS BEFS, and Copernicus.
Journal Article
The Discordance of Mass-Loss Estimates for Galactic O-Type Stars
TL;DR: In this paper, the mass-loss rate and the ion fraction of P+4, Mq(P+4), were determined for a sample of 40 Galactic O-type stars by fitting stellar wind profiles to observations of the P v resonance doublet obtained with FUSE, ORFEUS BEFS, and Copernicus.