activity
20042026
most citedSurvey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae

194 citations · 1.5k across the 77 of their papers we have counts for

collaborators

78 papers

astro-ph.HE2026

Multi-band optical photometric variability of the blazar OJ 287 from 2015 to 2025

Alok C. Gupta, Karan Dogra, Mark Kidger +101

We present the most densely sampled multi-band optical photometric observations of the peculiar BL Lacertae object OJ 287 from 2015 to 2025 with a focus on its optical activity on…

astro-ph.SR2023★ 1 cited

TU Tau B: The Peculiar 'Eclipse' of a possible proto-Barium Giant

Richard O. Gray, Christopher J. Corbally, Michael M. Briley +26

TU Tau (= HD 38218 = HIP 27135) is a binary system consisting of a C-N carbon star primary and an A-type secondary. We report on new photometry and spectroscopy which tracked the r…

astro-ph.SR2023★ 1 cited

Long-term Study of Changes in the Orbital Periods of 18 Eclipsing SW Sextantis Stars

David Boyd

SW Sex stars are an informal sub-class of eclipsing nova-like cataclysmic variables. We report 934 new eclipse times measured over the past 17 years for HS 0728+6738 (V482 Cam), SW…

astro-ph.SR2023

Comprehensive analysis of a symbiotic candidate V503 Her

J. Merc, R. Gális, M. Wolf +10

V503 Her was previously proposed as an eclipsing symbiotic candidate based on photometric behavior and spectroscopic appearance indicating the composite optical spectrum. To invest…

astro-ph.SR2023★ 1 cited

Combined Spectroscopic and Photometric Analysis of Flares in the Dwarf M Star EV Lacertae

David Boyd, Robert Buchheim, Sean Curry +6

We report results of an observing campaign to study the dwarf M flare star EV Lacertae. Between October 2021 and January 2022 we obtained concurrent B band photometry and low resol…

astro-ph.SR2022

Evidence of abrupt changes in the orbital periods of two cataclysmic variables

David Boyd

We report evidence from eclipse timing that two otherwise apparently normal cataclysmic variables have experienced abrupt changes in their orbital periods. The orbital period of HS…