149 citations · 507 across the 30 of their papers we have counts for
31 papers
Statistical structure and physical interpretation of the fillout factor distribution in contact binary stars
A. Poro, K. Li, E. Paki +2
Contact binary systems exhibit complex evolutionary behavior governed by mass transfer, angular momentum loss (AML), and Roche geometry. The fillout factor () is widely used as…
BSN-VII: Photometric Light Curve Study of Three Cool, Large-Amplitude, Low Mass, W-Subtype Contact Binaries
Atila Poro, Raul Michel, Diana Zadkhosh +9
We present a comprehensive photometric study of three W UMa-type contact binary systems, V1104 Her, V1284 Her, and V2822 Ori, based on a combination of ground-based observations an…
BSN-VIII: Detailed Photometric Modeling of Ten W UMa Contact Binaries and a Revised Empirical Period-Mass Relationship
Atila Poro, S. Javad Jafarzadeh, Kai Li +15
This study continues our ongoing research on contact binary systems by presenting a detailed analysis of 10 targets. Ground-based observations from six different observatories were…
Multivariate Statistical Analysis of Low Mass Ratio Contact Binaries: Definition, Dynamical Stability, and Parameter Relationships
A. Poro, R. Poggiani, A. Foroutanfar +3
This study explores multiple aspects of W Ursae Majoris (W UMa) contact binary systems with low mass ratios, providing empirical insights into their definition, structure, rotation…
Detailed TESS-Based Light Curve Modeling and Fundamental Parameter Estimation of 27 W UMa-Type Contact Binaries
Atila Poro, Ahmad Sarostad, Mohammad Davoudi +30
We performed a comprehensive analysis of 27 short period contact binary systems for which no light curve analysis had previously been reported. Photometric time-series data from th…
Detailed Investigation of a W UMa Contact Binary with an Ultralow Mass Ratio and a Third-Body as a Potential Merger Candidate
Atila Poro, Ehsan Paki, Fahri Alicavus +1
The lower limit of the mass ratio in contact binaries remains uncertain, with observations suggesting systems exist below theoretical predictions. The stability of such very low ma…
BSN-V: The First Detailed Light Curve Modeling of Eight Totally Eclipsing Contact Binary Stars Using Ground-Based and TESS Observations
Atila Poro, Raul Michel, Francisco Javier Tamayo +3
This study broadens our comprehensive investigation of total-eclipse W Ursae Majoris-type contact binaries by analyzing eight additional systems, continuing our previous research.…
BSN-IV: The First Multiband Light Curve Study of Five W UMa-type Contact Binary Systems
Atila Poro, Raul Michel, Jean-François Coliac +6
In this work, we present a detailed investigation of five contact binary systems of the W Ursae Majoris (W UMa) type. Multiband photometric observations were conducted using ground…
Pulsating and Non-pulsating Components of Detached Eclipsing Binaries in the Scuti instability strip
Filiz Kahraman Aliçavuş, Fahri Aliçavuş, Zeynep Çelik Orhan +3
Pulsating detached eclipsing binary systems are crucial for studying the internal structure of oscillating stars. These systems are advantageous because binary effects on pulsation…
BSN-II: The First Light Curve Study of Eight Total Eclipsing Contact Binary Stars with Shallow Fillout Factors
Atila Poro, Kai Li, Raul Michel +6
This study provides the first comprehensive analysis of eight total-eclipse W Ursae Majoris-type contact binary systems. Ground-based photometric multiband observations were conduc…
Spectroscopic and Photometric Investigation of Some Potentially Chemically Peculiar Scuti Stars
Filiz Kahraman Alicavus, Fahri Alicavus, Burcu Ozkardes +1
Investigating chemically peculiar pulsating stars is crucial for understanding the pulsation driving mechanism in detail. To reveal the true peculiarity properties of stars detaile…
BSN-III: The First Multiband Photometric Study on the Eight Total Eclipse Contact Binary Stars
Atila Poro, Kai Li, Raul Michel +6
This study continues our in-depth investigation of total-eclipse W Ursae Majoris-type contact binaries by analyzing eight new systems, complementing our previous work. Multiband $B…
First photometric investigation of V517 Cam combined with ground-based and TESS data
N. Alan, F. Alicavus, M. Alpsoy
The observations of eclipsing binary systems are of great importance in astrophysics, as they allow direct measurements of fundamental stellar parameters. By analysing high-quality…
On the Existence of "Maia variables"
F. Kahraman Aliçavuş, G. Handler, S. Chowdhury +5
There are different classes of pulsating stars in the H-R diagram. While many of those classes are undisputed, some remain a mystery such as the objects historically called "Maia v…
Candidate eclipsing binary systems with a Delta Scuti star in Northern TESS field
F. Kahraman Alicavus, D. Gumus, O. Kirmizitas +4
Existence of pulsating stars in eclipsing binaries has been known for decades. These types of objects are extremely valuable systems for astronomical studies as they exhibit both e…
Investigation of the Orbital Period and Mass Relations for W UMa-type Contact Systems
Atila Poro, Soroush Sarabi, Shiva Zamanpour +14
New relationships between the orbital period and some parameters of W Ursae Majoris (W UMa) type systems are presented in this study. To investigate the relationships, we calculate…
Kepler Binary Stars in NGC 6819 Open Cluster: KIC 5113146 and KIC 5111815
E. Soydugan, F. Alicavus, F. Soydugan +1
In this study, investigation of two double-lined binary stars KIC 5113146 and KIC 5111815 in NGC 6819 is presented based on both photometric and spectroscopic data. Simultaneous an…
BVRI Photometric Observations, Light Curve Solutions and Orbital Period Analysis of BF Pav
Atila Poro, Fahri Alicavus, Eduardo Fernández-Lajús +7
A new ephemeris, period change analysis and light curve modeling of the W UMa-type eclipsing binary BF Pav are presented in this study. Light curves of the system taken in BVRI fil…
The First Light Curve Solutions and Period Changes of EW Psc and HN Psc
F. Davoudi, A. Poro, F. Alicavus +13
The first light curve solutions of the stars EW and HN in Pisces constellation are presented. Photometry, and its' periodic changes are calculated and discussed. The analysis of O-…
The First Light Curve Solutions and Period Study of BQ Ari
A. Poro, F. Davoudi, F. Alicavus +14
The first analysis of the photometric observation in BVR filters of a W UMa type binary system BQ Ari was performed. Light curve analysis was performed using Wilson-Devinney (W-D)…
The evolutionary status of chemically peculiar eclipsing binary star DV Boo
Filiz Kahraman Alicavus, Fahri Alicavus
Eclipsing binary systems are unique stellar objects to examine and understand the stellar evolution and the formation. Thanks to these systems, the fundamental stellar parameters (…
Analysis of some Semi-Detached systems observed by TESS
Fahri Alicavus
Semi-Detached binary stars are very important systems for the precise determination of astrophysical parameters and the analysis of mass transfer and loss mechanisms between the co…
Multiband optical flux density and polarization microvariability study of optically bright blazars
Magdalena Pasierb, Arti Goyal, Michał Ostrowski +21
We present the results of flux density, spectral index, and polarization intra-night monitoring studies of a sample of eight optically bright blazars, carried out by employing seve…
Investigation of near-contact semi-detached binary W UMi through observations and evolutionary models
Faruk Soydugan, Esin Soydugan, Fahri Aliçavuş
W UMi is a near contact, semi-detached, double-lined eclipsing binary star with an orbital period of 1.7 days. Simultaneous analysis of new BVR multi-color light curves and radial…