74 citations · 130 across the 16 of their papers we have counts for
16 papers
KIC 9272276: An Extreme Low Mass Ratio Red Nova Progenitor
Surjit Wadhwa, Marko Grozdanovic, Bojan Arbutina +2
Photometric analysis of KIC 9272276 (K9272), a low-mass contact binary system, is presented. We find it to be an example of an extreme low mass ratio system that satisfies the curr…
V717 Andromedae: An Active Low Mass Ratio Contact Binary
S. S. Wadhwa, M. Grozdanovic, N. F. H. Tothill +2
Multi-band photometric analysis of the contact binary V717 Andromedae (V717 And) is presented. The system is found to be an extreme low mass ratio system (q = 0.197) with high incl…
Low Mass Contact Binaries: Orbital Stability at Extreme Low Mass Ratios
Surjit S. Wadhwa, Natalia R. Landin, Bojan Arbutina +5
With the ever-increasing number of light curve solutions of contact binary systems increasing number of potential bright red nova progenitors are being reported. There remains, how…
Photometric and Spectroscopic study of Ten Low Mass Ratio Contact Binary Systems: Orbital Stability, O'Connell Effect and Infra-red Calcium Line Filling
Surjit S. Wadhwa, Adam Popowicz, Raul Michel +5
Low mass ratio contact binary systems are more likely to have unstable orbits and potentially merge. In addition, such systems exhibit characteristics such as starspots and high en…
The Critical Mass Ratio for W UMa-type Contact Binary Systems
Bojan Arbutina, Surjit Wadhwa
Contact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact and in potential mass and energy exchange. T…
Effects of Metallicity on the Instability Mass Ratio of Low Mass Contact Binary Systems
Surjit S. Wadhwa, Natalia R. Landin, Petar Kostic +7
The orbital stability of contact binary systems has been receiving considerable attention recently. Theoretical studies indicate that merger is likely to occur at very low mass rat…
Effective Temperature and the Light Curve Solution of Contact Binary Systems
Surjit Wadhwa, Nick Tothill, Miroslav Filipovic +1
With increasing number of contact binary discoveries and the recognition that luminous red novae are the result of contact binary merger events, there has been a significant increa…
Photometric and Spectroscopic Study of Two Low Mass Ratio Contact Binary Systems: CRTS J225828.7-121122 and CRTS J030053.5+230139
Surjit S. Wadhwa, Jelena Petrovic, Nick F. H. Tothill +3
The study reports photometric and spectroscopic observations of two recently recognised contact binary systems. Both systems show total eclipses and analysis of the light curves in…
A Study of Six Extreme Low Mass Ratio Contact Binary Systems
Surjit S. Wadhwa, Bojan Arbutina, Jelena Petrovic +4
Multi-band (B, V and R) photometric and spectroscopic observations of six poorly studied contact binaries carried out at the Western Sydney University and Las Cumbres Observatory w…
A Study of Twelve Potential Merger Candidate Contact Binary Systems
Surjit S. Wadhwa, Bojan Arbutina, Nick F. H. Tothill +4
Photometric observations and analysis of twelve previously poorly studied contact binary systems is presented. All show total eclipses and have extremely low mass ratios ranging fr…
On the True Nature of the Contact Binary CRTS J192848.7-404555
Surjit S Wadhwa, Ain Y DeHorta, Miroslav Filipović +1
CRTS J192848.7-404555 was recognised as a potential contact binary merger candidate on the basis of survey photometry analysis. We have carried out follow up ground based photometr…
Simplified Method for the Identification of Low Mass Ratio Contact Binary Systems that are Potential Red Nova Progenitors
Surjit S. Wadhwa, Ain Y. De Horta, Miroslav D. Filipovic +4
The study presents a simplified method to identify potential bright red nova progenitors based on the amplitude of the light curve and infrared (J-H) colour of a contact binary sys…
Photometric Analysis of Three Potential Red Nova Progenitors
Surjit S. Wadhwa, Ain De Horta, Miroslav D. Filipovic +4
We present photometric analysis of three bright red nova progenitor contact binary systems: ASAS J082151-0612.6, TYC 7281-269-1 and TYC 7275-1968-1. The primary components in all t…
Analysis of Dual Band and Survey Photometry of Two Low Mass Ratio Contact Binary Systems
Surjit S. Wadhwa, Ain Y. De Horta, Miroslav D. Filipovic +1
The study presents photometric analysis of the completely eclipsing contact binary systems TYC 8351-1081-1 and ASAS J210406-0522.3. TYC 8351-1081-1 is an extremely low mass ratio (…
Photometric analysis of two extreme low mass ratio contact binary systems
Surjit S Wadhwa, Nick F H Tothill, Ain Y DeHorta +1
Multi band photometry and light curve analysis for two newly recognized contact binary systems, TYC 6995-813-1 and NSVS 13602901 are presented. Both were found to be of extreme low…
ZZ Piscis Austrinus (ZZ PsA): A bright red nova progenitor and the instability mass ratio of contact binary stars
Surjit S. Wadhwa, Ain De Horta, Miroslav D. Filipović +4
ZZ PsA is a neglected bright southern contact binary system with maximum V magnitude of 9.26. We present the first multi-band photometric analysis and find the system to be in deep…