5 papers
KMTNet Synoptic Survey of Southern Sky III: The First Data Release
Seo-Won Chang, Myungshin Im, Mankeun Jeong +13
We present the first public data release (DR1) of the KMTNet Synoptic Survey of Southern Sky (KS4). This deep, wide-field imaging survey covers a southern footprint of -85$^{\circ}…
A multi-wavelength study of the 2025 low state of the intermediate polar BG CMi
A. W. Shaw, K. Mukai, C. O. Heinke +18
We present multi-wavelength observations of the first recorded low state of the intermediate polar BG CMi. Optical monitoring of the source by members of the American Association o…
V407 Lup, an intermediate polar nova
M. Orio, M. Melicherčík, S. Ciroi +6
We present X-ray and optical observations of nova V407 Lup (Nova Lup 2016), previously well monitored in outburst, as it returned to quiescent accretion. The X-ray light curve in 2…
Spectro-photometric follow up of the outbursting AM CVn system ASASSN-21br
S. Painter, E. Aydi, M. Motsoaledi +8
We report on spectroscopic and photometric observations of the AM CVn system ASASSN-21br, which was discovered in outburst by the All-Sky Automated Survey for Supernovae in Februar…
Revisiting the classics: On the evolutionary origin of the "Fe II" and "He/N" spectral classes of novae
E. Aydi, L. Chomiuk, J. Strader +21
The optical spectra of novae are characterized by emission lines from the hydrogen Balmer series and either Fe II or He/N, leading to their traditional classification into two spec…