activity
20062021
most citedA Unicorn in Monoceros: the dark companion to the bright, nearby red giant V723 Mon is a non-interacting, mass-gap black hole candidate

117 citations · 899 across the 70 of their papers we have counts for

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Showing 2014Show all

6 papers · 1 filter

astro-ph.SR2014★ 8 cited

CC Sculptoris: Eclipsing SU UMa-Type Intermediate Polar

Taichi Kato, Franz-Josef Hambsch, Arto Oksanen +2

We observed the 2014 superoutburst of the SU UMa-type intermediate polar CC Scl. We detected superhumps with a mean period of 0.05998(2) d during the superoutburst plateau and duri…

astro-ph.SR2014★ 19 cited

NY Serpentis: SU UMa-Type Nova in the Period Gap with Diversity of Normal Outbursts

Elena P. Pavlenko, Taichi Kato, Oksana I. Antonyuk +16

We present photometric study of NY Ser, an in-the-gap SU UMa-type nova, in 2002 and 2013. We determined the duration of the superoutburst and the mean superhump period to be 18 d a…

astro-ph.SR2014

AL Pictoris and FR Piscis: two regular Blazhko RR Lyrae stars

Pierre de Ponthiere, Franz-Josef, Hambsch +2

The results presented are a continuation of observing campaigns conducted by a small group of amateur astronomers interested in the Blazhko effect of RR Lyrae stars. The goal of th…

astro-ph.SR2014

The asynchronous polar V1432 Aquilae and its path back to synchronism

David Boyd, Joseph Patterson, William Allen +23

V1432 Aquilae is the only known eclipsing asynchronous polar. In this respect it is unique and therefore merits our attention. We report the results of a 15-year campaign by the gl…

astro-ph.SR2014★ 22 cited

Study of Negative and Positive Superhumps in ER Ursae Majoris

Tomohito Ohshima, Taichi Kato, Elena Pavlenko +45

We carried out the photometric observations of the SU UMa-type dwarf nova ER UMa during 2011 and 2012, which showed the existence of persistent negative superhumps even during the…

astro-ph.SR2014

ST Chamaeleontis and BP Coronae Australis: Two Southern Dwarf Novae Confirmed as Z Cam Stars

Mike Simonsen, Terry Bohlsen, Franz-Josef Hambsch +1

Z Camelopardalis (Z Cam) stars are a subset of dwarf novae distinguished by the occurrence of standstills, periods of relative constant brightness one to one and a half magnitudes…