Papers by Dr. James Sowell
Orbital Solutions and Absolute Elements of the Massive Algol Binary ET Tauri
Williamon, Richard, M; Dale, Horace; Evavold, Charles L.; Langoussis, Alexander; Fekel, Francis C.; Muterspaugh, Matthew W.; Williams, Stephen; Napier, Kate; Sowell, James R.
Publications of the Astronomical Society of the Pacific, 2016 (in press)
Orbital Solutions and Absolute Elements of the W UMa Binary
MW Pavonis
Alvarez, Gabriella; Sowell, James R.; Williamon, Richard M.; Lapasset, Emilio
Publications of the Astronomical Society of the Pacific, 127, 742-748, 2015
Orbital Solutions and Absolute Elements of the Short-Period Eclipsing Binary ES Librae
Cabrera, Nicole, Sowell, James R.; Williamon, Richard M.; Collins, T.F.; Fekel, Francis C.; Williamson, M.H.; Muterspaugh, Matthew W.
Publications of the Astronomical Society of the Pacific, 126, 121-132, 2014
Absolute Properties of the Eclipsing Binary VV Corvi
Fekel, Francis C.; Henry, Gregory W.; Sowell, James R.
Astronomical Journal, 146, 146-155, 2013
The Eclipsing Binary RU Eridani
Williamon, Richard M.; Sowell, James R.; Van Hamme, Walter
Publications of the Astronomical Society of the Pacific, 125, 17-24, 2013
Orbital Solutions and Absolute Elements of the Eclipsing Binary YY Ceti
Williamon, Richard M.; Sowell, James R.
Publications of the Astronomical Society of the Pacific, 124, 411-417, 2012
Absolute Properties of the Highly Eccentric, Solar-Type Eclipsing Binary HD 74057
Sowell, James R.; Henry, Gregory W.; Fekel, Francis C.
Astronomical Journal, 143, 5-12, 2011
Orbital Solutions and Absolute Elements of the Eclipsing Binary EE Aquarii
Diehl Wronka, Marissa; Gold, Caitlin; Sowell, James R.; Williamon, Richard M.
Astronomical Journal, 139, 1486, 2010
Orbital Solutions and Absolute Elements of the Eclipsing Binary MY Cygni
Tucker, Rebecca S.; Sowell, James R.; Williamon, Richard M.; Coughlin, Jeff
Astronomical Journal, 137, 2949, 2009
H-R Diagrams Based on the HD Stars in the Michigan Spectral Catalogue and the Hipparcos Catalog
Sowell, James R.; Trippe, Margaret; Caballero-Nieves, Saida, M.; Houk, Nancy
Astronomical Journal, 134, 1072, 2007
Galactic Distributions and Statistics of the HD Stars in the Michigan Spectral Catalogue
Caballero-Nieves, Saida, M.; Sowell, James R.; Houk, Nancy
Astronomical Journal, 134, 1089, 2007
HD 71636, A Newly Discovered Eclipsing Binary
Henry, Gregory W.; Fekel, Francis C.; Sowell, James R.; Gearhart, Joel S.
Astronomical Journal, 132, 2489, 2006
The Eclipsing Binary System AR Monocerotis
Williamon, Richard M.; Van Hamme, Walter; Torres, Guillermo; Sowell, James R.; Ponce, Veronica C.
Astronomical Journal, 129, 2789, 2005
Orbital Solutions and Absolute Elements of the Eclipsing Binary AY Camelopardalis
Williamon, Richard M.; Sowell, James R.; Van Hamme, Walter
Astronomical Journal, 128, 1319, 2004
Speckle Observations of Composite Star Candidates
Sowell, J. R.; Bord, D. J.; Hart, D. L.; Beletic, J. W.
Astronomical Journal, 122, 1981, 2001
Period Changes in Four Short-Period Spotted Binaries: UV Piscium, YY Geminorum, CG Cygni, and XY Ursae Majoris
Sowell, James R.; Hughes, Scott B.; Hall, Douglas S.; Howard, Bruce A.
Astronomical Journal, 122, 1965, 2001
Spectral Classification of "Photometric Subgiants" in Open Clusters
Sears, R. L.; Sowell, James R.
Astronomical Journal, 113, 1039, 1997
ICCD Speckle Observations of Binary Stars. IX - A Duplicity Survey of the Pleiades, Praesepe, and IC 4665 clusters
Mason, Brian D.; Hartkopf, William I.; McAlister, Harold A.; Sowell, James R.
Astronomical Journal, 106, 637, 1993
All-Sky Stromgren Photometry of Speckle Binary Stars
Sowell, James R.; Wilson, John W.
Pub of the Astronomical Society of the Pacific, 105, 36, 1993
The Lithium Abundances of the Capella Giants
Pilachowski, Catherine A.; Sowell, James R.
Astronomical Journal, 103, 1668, 1992
A Survey of Balmer-line Profiles and IRAS Fluxes in Forty Yellow Supergiants
Sowell, James R.
Astronomical Journal, 100, 834, 1990
Evolution of the Starspots in V478 Lyrae from 1980 to 1988
Hall, Douglas S.; Henry, Gregory W.; Sowell, James R.
Astronomical Journal, 99, 396, 1990
ICCD Speckle Observations of Binary Stars. IV - Measurements during 1986-1988 from the Kitt Peak 4-meter Telescope
McAlister, Harold A.; Hartkopf, William I.; Sowell, James R.; Dombrowski, Edmund G.; Franz, Otto G.
Astronomical Journal, 97, 510, 1989
HD 41596 and HD 36650 - Investigations of Weak &lambda 4077 in Two Marginal Barium Stars
Sowell, James R.
Pub of the Astronomical Society of the Pacific, 101, 101, 1989
Binary Star Orbits from Speckle Interferometry. I - The Hyades Binary Finsen 342 (70 Tauri)
McAlister, Harold A.; Hartkopf, William I.; Bagnuolo, William G., Jr.; Sowell, James R.; Franz, Otto G.; Evans, David S.
Astronomical Journal, 96, 1431, 1988
Binary Star Speckle Photometry. I - The Colors and Spectral Types of the Capella Stars
Bagnuolo, William G., Jr.; Sowell, James R.
Astronomical Journal, 96, 1056, 1988
H&alpha Observations of Supergiant Stars: R Puppis and &rho Cassiopeiae
Sowell, J. R.; Bord, D. J.
The Observatory, 107, 259, 1987
Spectrophotometry of &epsilon Aurigae
Thompson, D. T.; Lutz, B. L.; Lockwood, G. W.; Sowell, J. R.
Astrophysical Journal, 321, 450, 1987
CG Cygni - Solutions of 1979 and 1980 Light Curves
Sowell, James R.; Wilson, John W.; Hall, Douglas S.; Peyman, Pamela E.
Pub of the Astronomical Society of the Pacific, 99, 407, 1987
Yellow Evolved Stars in Open Clusters
Sowell, James R.
Astrophysical Journal Supplement Series, 64, 241, 1987
Yellow Supergiants in Open Clusters
Sowell, James R.
PhD Thesis, University of Michigan, 1986
Non-Membership of Two Superluminous Giant Candidates in the LMC
Sowell, James R.
Astronomical Journal, 91, 79, 1986
Spectroscopic Observations of Nova Vulpeculae 1984 No. 1
Sowell, James R.; Laird, J. B.; Thorstensen, J. R.
Information Bulletin on Variable Stars, #2700, 1985
Spectrophotometric Observations of Nova Sagittarii 1982 Near Maximum Light
Sowell, J. R.; Cowley, A. P.
Information Bulletin on Variable Stars, #2283, 1985
MM Herculis - An Eclipsing Binary of the RS CVn Type
Sowell, J. R.; Hall, D. S.; Henry, G. W.; Burke, E. W., Jr.; Milone, E. F.
Astrophysics and Space Sciences, 90, 421, 1983
Photoelectric Photometry of Theta^1 Orionis A = V1016 Ori
Sowell, J. R.; Hall, D. S.
Information Bulletin on Variable Stars, #2076, 1982
Orbital Solutions and Absolute Elements of the Massive Algol Binary ET Tauri
Williamon, Richard, M; Dale, Horace; Evavold, Charles L.; Langoussis, Alexander; Fekel, Francis C.; Muterspaugh, Matthew W.; Williams, Stephen; Napier, Kate; Sowell, James R.
Publications of the Astronomical Society of the Pacific, 2016 (in press)
Orbital Solutions and Absolute Elements of the W UMa Binary
MW Pavonis
Alvarez, Gabriella; Sowell, James R.; Williamon, Richard M.; Lapasset, Emilio
Publications of the Astronomical Society of the Pacific, 127, 742-748, 2015
Orbital Solutions and Absolute Elements of the Short-Period Eclipsing Binary ES Librae
Cabrera, Nicole, Sowell, James R.; Williamon, Richard M.; Collins, T.F.; Fekel, Francis C.; Williamson, M.H.; Muterspaugh, Matthew W.
Publications of the Astronomical Society of the Pacific, 126, 121-132, 2014
Absolute Properties of the Eclipsing Binary VV Corvi
Fekel, Francis C.; Henry, Gregory W.; Sowell, James R.
Astronomical Journal, 146, 146-155, 2013
The Eclipsing Binary RU Eridani
Williamon, Richard M.; Sowell, James R.; Van Hamme, Walter
Publications of the Astronomical Society of the Pacific, 125, 17-24, 2013
Orbital Solutions and Absolute Elements of the Eclipsing Binary YY Ceti
Williamon, Richard M.; Sowell, James R.
Publications of the Astronomical Society of the Pacific, 124, 411-417, 2012
Absolute Properties of the Highly Eccentric, Solar-Type Eclipsing Binary HD 74057
Sowell, James R.; Henry, Gregory W.; Fekel, Francis C.
Astronomical Journal, 143, 5-12, 2011
Orbital Solutions and Absolute Elements of the Eclipsing Binary EE Aquarii
Diehl Wronka, Marissa; Gold, Caitlin; Sowell, James R.; Williamon, Richard M.
Astronomical Journal, 139, 1486, 2010
Orbital Solutions and Absolute Elements of the Eclipsing Binary MY Cygni
Tucker, Rebecca S.; Sowell, James R.; Williamon, Richard M.; Coughlin, Jeff
Astronomical Journal, 137, 2949, 2009
H-R Diagrams Based on the HD Stars in the Michigan Spectral Catalogue and the Hipparcos Catalog
Sowell, James R.; Trippe, Margaret; Caballero-Nieves, Saida, M.; Houk, Nancy
Astronomical Journal, 134, 1072, 2007
Galactic Distributions and Statistics of the HD Stars in the Michigan Spectral Catalogue
Caballero-Nieves, Saida, M.; Sowell, James R.; Houk, Nancy
Astronomical Journal, 134, 1089, 2007
HD 71636, A Newly Discovered Eclipsing Binary
Henry, Gregory W.; Fekel, Francis C.; Sowell, James R.; Gearhart, Joel S.
Astronomical Journal, 132, 2489, 2006
The Eclipsing Binary System AR Monocerotis
Williamon, Richard M.; Van Hamme, Walter; Torres, Guillermo; Sowell, James R.; Ponce, Veronica C.
Astronomical Journal, 129, 2789, 2005
Orbital Solutions and Absolute Elements of the Eclipsing Binary AY Camelopardalis
Williamon, Richard M.; Sowell, James R.; Van Hamme, Walter
Astronomical Journal, 128, 1319, 2004
Speckle Observations of Composite Star Candidates
Sowell, J. R.; Bord, D. J.; Hart, D. L.; Beletic, J. W.
Astronomical Journal, 122, 1981, 2001
Period Changes in Four Short-Period Spotted Binaries: UV Piscium, YY Geminorum, CG Cygni, and XY Ursae Majoris
Sowell, James R.; Hughes, Scott B.; Hall, Douglas S.; Howard, Bruce A.
Astronomical Journal, 122, 1965, 2001
Spectral Classification of "Photometric Subgiants" in Open Clusters
Sears, R. L.; Sowell, James R.
Astronomical Journal, 113, 1039, 1997
ICCD Speckle Observations of Binary Stars. IX - A Duplicity Survey of the Pleiades, Praesepe, and IC 4665 clusters
Mason, Brian D.; Hartkopf, William I.; McAlister, Harold A.; Sowell, James R.
Astronomical Journal, 106, 637, 1993
All-Sky Stromgren Photometry of Speckle Binary Stars
Sowell, James R.; Wilson, John W.
Pub of the Astronomical Society of the Pacific, 105, 36, 1993
The Lithium Abundances of the Capella Giants
Pilachowski, Catherine A.; Sowell, James R.
Astronomical Journal, 103, 1668, 1992
A Survey of Balmer-line Profiles and IRAS Fluxes in Forty Yellow Supergiants
Sowell, James R.
Astronomical Journal, 100, 834, 1990
Evolution of the Starspots in V478 Lyrae from 1980 to 1988
Hall, Douglas S.; Henry, Gregory W.; Sowell, James R.
Astronomical Journal, 99, 396, 1990
ICCD Speckle Observations of Binary Stars. IV - Measurements during 1986-1988 from the Kitt Peak 4-meter Telescope
McAlister, Harold A.; Hartkopf, William I.; Sowell, James R.; Dombrowski, Edmund G.; Franz, Otto G.
Astronomical Journal, 97, 510, 1989
HD 41596 and HD 36650 - Investigations of Weak &lambda 4077 in Two Marginal Barium Stars
Sowell, James R.
Pub of the Astronomical Society of the Pacific, 101, 101, 1989
Binary Star Orbits from Speckle Interferometry. I - The Hyades Binary Finsen 342 (70 Tauri)
McAlister, Harold A.; Hartkopf, William I.; Bagnuolo, William G., Jr.; Sowell, James R.; Franz, Otto G.; Evans, David S.
Astronomical Journal, 96, 1431, 1988
Binary Star Speckle Photometry. I - The Colors and Spectral Types of the Capella Stars
Bagnuolo, William G., Jr.; Sowell, James R.
Astronomical Journal, 96, 1056, 1988
H&alpha Observations of Supergiant Stars: R Puppis and &rho Cassiopeiae
Sowell, J. R.; Bord, D. J.
The Observatory, 107, 259, 1987
Spectrophotometry of &epsilon Aurigae
Thompson, D. T.; Lutz, B. L.; Lockwood, G. W.; Sowell, J. R.
Astrophysical Journal, 321, 450, 1987
CG Cygni - Solutions of 1979 and 1980 Light Curves
Sowell, James R.; Wilson, John W.; Hall, Douglas S.; Peyman, Pamela E.
Pub of the Astronomical Society of the Pacific, 99, 407, 1987
Yellow Evolved Stars in Open Clusters
Sowell, James R.
Astrophysical Journal Supplement Series, 64, 241, 1987
Yellow Supergiants in Open Clusters
Sowell, James R.
PhD Thesis, University of Michigan, 1986
Non-Membership of Two Superluminous Giant Candidates in the LMC
Sowell, James R.
Astronomical Journal, 91, 79, 1986
Spectroscopic Observations of Nova Vulpeculae 1984 No. 1
Sowell, James R.; Laird, J. B.; Thorstensen, J. R.
Information Bulletin on Variable Stars, #2700, 1985
Spectrophotometric Observations of Nova Sagittarii 1982 Near Maximum Light
Sowell, J. R.; Cowley, A. P.
Information Bulletin on Variable Stars, #2283, 1985
MM Herculis - An Eclipsing Binary of the RS CVn Type
Sowell, J. R.; Hall, D. S.; Henry, G. W.; Burke, E. W., Jr.; Milone, E. F.
Astrophysics and Space Sciences, 90, 421, 1983
Photoelectric Photometry of Theta^1 Orionis A = V1016 Ori
Sowell, J. R.; Hall, D. S.
Information Bulletin on Variable Stars, #2076, 1982