5 papers
Spectroscopic Analysis of the 2025 Eclipse of the Symbiotic Binary V1413 Aquilae
David Boyd, James Foster, Forrest Sims +12
We report on a coordinated campaign by amateur astronomers using a combination of high and low resolution spectroscopy to observe the 2025 eclipse of the symbiotic binary V1413 Aql…
HD 5501: A Rapidly Evolving Interacting Eclipsing Binary with a Variable Light Curve and H Emission
Richard O. Gray, Christopher. J. Corbally, Sean Curry +19
HD~5501, a hitherto little studied eclipsing binary with an early A-type primary, has been caught in a short-lived, astrophysically interesting phase of its binary evolution. Recen…
TESS photometry of the nova eruption in V606 Vul: asymmetric photosphere and multiple ejections?
Kirill V. Sokolovsky, Elias Aydi, Konstantin Malanchev +70
Lightcurves of many classical novae deviate from the canonical "fast rise - smooth decline" pattern and display complex variability behavior. We present the first TESS-space-photom…
Photometry and Spectroscopy of the Symbiotic Binary V1413 Aquilae during the 2024 Eclipse
David Boyd, David Cejudo, James Foster +2
We report our photometric and spectroscopic observations and analysis of the 2024 eclipse of the symbiotic binary V1413 Aquilae. We found the system in a visually bright state and…
Spectral evolution of the narrow emission line components in optical during the 2022 nova eruption of U Scorpii
Katsuki Muraoka, Naoto Kojiguchi, Junpei Ito +20
There remains debate over whether the accretion disk survives or is entirely disrupted after the nova eruption. In our previous paper, Muraoka et al. (2024, PASJ, 76, 293) have pho…