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Full-Text Articles in Stars, Interstellar Medium and the Galaxy
Physical Characteristics And Classification Of The Large Amplitude Variable Star V1719 Cygni, Ashley Lieber, Logan Siems, Julia Kennefick, Michael Fitzgerald
Physical Characteristics And Classification Of The Large Amplitude Variable Star V1719 Cygni, Ashley Lieber, Logan Siems, Julia Kennefick, Michael Fitzgerald
Inquiry: The University of Arkansas Undergraduate Research Journal
Pulsating stars are used as standard candles which are helpful in determining distances to stellar objects along with the relationship between their period and apparent luminosity. The focus of this study was the variable star, V1719 Cygni, which is often classified as a Delta (δ) Scuti star, but there exists debate that it should be classified as a RR Lyrae star due to its abnormal light curve and similar characteristics between the two variable star categories. Observational data was taken in 2019 using the Las Cumbres Observatory international telescope network. The resulting data were calibrated using comparison stars in the …
New Pulsating Variable Discovered In The Constellation Andromeda, Jeff W. Robertson
New Pulsating Variable Discovered In The Constellation Andromeda, Jeff W. Robertson
Journal of the Arkansas Academy of Science
No abstract provided.
Be Star Spectroscopy Using The Uca Fiber-Fed Spectrograph, Scott Austin
Be Star Spectroscopy Using The Uca Fiber-Fed Spectrograph, Scott Austin
Journal of the Arkansas Academy of Science
Beginning in June 2003, undergraduate students and the author have spectroscopically monitored bright Be stars using a custom built fiber-fed spectrograph attached to the UCA Observatory 11-inch Schmidt-Cassegrain telescope. We have obtained 0.8 Angstrom/pixel resolution spectra of the H-alpha line for over forty Be-Stars. Some have been observed on multiple dates in order to detect any temporal changes. Line profiles, velocities, and observed variations for some of these stars will be presented.
Pole Stars Of Other Planets, Paul C. Sharrah
Pole Stars Of Other Planets, Paul C. Sharrah
Journal of the Arkansas Academy of Science
The north celestial pole of the Earth and the other planets is discussed. Right ascension and declination information on the location of the poles on the celestial sphere is summarized. The name of the brightest visible star near each pole is given and the special case of Uranus is discussed.