108 citations · 731 across the 31 of their papers we have counts for
12 papers · 1 filter
Discovery of the first outbursting hot subdwarf binary: ZTF J0007+4804
E. Stringer, T. Kupfer, K. Deshmukh +10
Hot subdwarf binaries with white dwarf companions with orbital periods of less than two hours are progenitor candidates for massive single white dwarfs as well as a variety of ther…
Follow-up on three poorly studied AM CVn stars
Amornrat Aungwerojwit, Boris T. Gaensicke, E. Breedt +12
We report follow-up observations of three poorly studied AM CVn-type binaries: CRTS CSS150211 J091017-200813, NSV1440, and SDSSJ183131.63+420220.2. Analysing time-series photometry…
Spectroscopic Devices for Asteroseismology With Small Telescopes in NARIT
Somsawat Rattanasoon, Eugene Semenko, David Mkrtichian +1
The National Astronomical Research Institute of Thailand (NARIT) has a manifold network of small telescopes installed worldwide. These telescopes serve educational and research pur…
BM UMa: a middle shallow contact binary at pre-transition stage of evolution from W-type to A-type
T. Sarotsakulchai, B. Soonthornthum, S. Poshyachinda +3
In this study, all unpublished time series photometric data of BM UMa ( 2.0, P = 0.2712\,d) from available archives were re-investigated together with new data taken from t…
NGTS and HST insights into the long period modulation in GW Librae
P. Chote, B. T. Gaensicke, J. McCormac +17
Light curves of the accreting white dwarf pulsator GW Librae spanning a 7.5 month period in 2017 were obtained as part of the Next Generation Transit Survey. This data set comprise…
Gaia18aen: First symbiotic star discovered by Gaia
J. Merc, J. Mikołajewska, M. Gromadzki +20
Besides the astrometric mission of the Gaia satellite, its repeated and high-precision measurements serve also as an all-sky photometric transient survey. The sudden brightenings o…
Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger S190814bv
K. Ackley, L. Amati, C. Barbieri +151
On 2019 August 14, the LIGO and Virgo interferometers detected a high-significance event labelled S190814bv. Preliminary analysis of the GW data suggests that the event was likely…
YZ Phe: an active contact binary with variation of the O'Connell effect and orbital period change
T. Sarotsakulchai, S. -B. Qian, B. Soonthornthum +7
YZ Phe is a very short-period contact binary (Sp.= ) with an orbital period of 0.2347 days near the short period limit (0.22 d). We present the complete light curves in $VRI…
Photometric Investigation of the Contact Binary GU Ori with High Metallicity
Xiao Zhou, Shengbang Qian, Boonrucksar Soonthornthum +5
GU Ori was observed with the 1m telescope at Yunnan Observatories in 2005. To determine its physical properties, the Wilson-Devinney program is used. The results reveal that GU Ori…
DE CVn: an eclipsing post-common envelope binary with a circumbinary disk and a giant planet
Z. T Han, S. B. Qian, L. Y. Zhu +8
We present a timing analysis of the eclipsing post-common envelope binary (PCEB) DE CVn. Based on new CCD photometric observations and the published data, we found that the orbital…
TY Pup: a low-mass-ratio and deep contact binary as a progenitor candidate of luminous red novae
T. Sarotsakulchai, S. B. Qian, B. Soonthornthum +6
TY Pup is a well-known bright eclipsing binary in southern hemisphere with an orbital period of 0.8192 days. New light curves in bands were obtained with the 0.61-m…
RW Dor: A G-type shallow contact binary with new orbital period investigation
T. Sarotsakulchai, S. -B. Qian, B. Soonthornthum +9
New CCD photometric light curves of short period (P=0.285d) eclipsing binary RW Dor are presented. The observations performed with the PROMPT-8 robotic telescope at CTIO in Chile f…