activity
20192026
most citedInvestigation of the Orbital Period and Mass Relations for W UMa-type Contact Systems

39 citations · 145 across the 47 of their papers we have counts for

collaborators

48 papers

astro-ph.SR2026

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…

astro-ph.SR2026

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…

astro-ph.SR2026

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…

astro-ph.SR2026

BSN: Light Curve Modeling and Orbital Period Analysis of the Contact Binaries OV Leo and V339 Leo

Razieh Aliakbari, Atila Poro, Raul Michel +1

We present a combined photometric and orbital period analysis of the contact binary systems OV Leo and V339 Leo using ground-based observations together with TESS photometry. The l…

astro-ph.SR2026

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…

astro-ph.SR2026

BSN-VI: Multiband Light Curve Modeling of Four W UMa-Type Contact Binaries I. Revisiting Energy Transfer Mechanisms and Luminosity Behavior

Elham Sarvari, Atila Poro, Raul Michel +5

We presented the first high-precision, detailed photometric analysis of four W Ursae Majoris (W UMa)-type contact binaries, Linear 10772300, Linear 11150338, Linear 20372537 and DM…

astro-ph.SR2026

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…

astro-ph.SR2026★ 3 cited

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…

astro-ph.SR2025

BSN: Light Curve Modeling and Orbital Evolution of the Total-Eclipse Contact Binary EZ Oct

Asma Ababafi, Atila Poro, Mehmet Tanriver +1

We present the first detailed multiband (BVR_cI_c and TESS) photometric analysis of the short-period binary EZ Oct. This study combines ground-based observations conducted at a Sou…

astro-ph.SR2025

BSN: The First Multiband Light Curve Analysis of the W UMa-type Contact Binary System EM Tucanae

Sepideh Houshiar, Atila Poro, Abbas Abedini +1

We present a comprehensive photometric light curve and orbital period analysis of the W UMa-type contact binary EM Tuc. The O-C analysis constructed from all available eclipse timi…

astro-ph.SR2025

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.…

astro-ph.SR2025

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…

astro-ph.EP2025

Asteroid Rotation Periods: Statistical Analysis in the Diameter-Spin Distribution

Maryam Nastaran, Atila Poro, Raziyeh Hosseini +1

This study examines the rotational characteristics of asteroids through statistical modeling of the diameter-period relationship. A statistical evaluation of the diameter-period re…

astro-ph.SR2025

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…

astro-ph.SR2025★ 10 cited

The BSN Application-I: Photometric Light Curve Solutions of Contact Binary Systems

Ehsan Paki, Atila Poro, Minoo Dokht Moosavi Rowzati

Light curve analysis of W UMa-type contact binary systems using MCMC or MC methods can be time-consuming, primarily because the repeated generation of synthetic light curves tends…

astro-ph.SR2025

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…

astro-ph.SR2025

Four Total Eclipsing Contact Binary Systems: The First Photometric Light Curve Solutions Employing TESS and Gaia Surveys

Atila Poro, Razieh Aliakbari, Hossein Azarara +2

We presented the first photometric light curve solutions of four W Ursae Majoris (W UMa)-type contact binary systems. This investigation utilized photometric data from the Transiti…

astro-ph.SR2025

The First In-depth Photometric Study of the Four Delta Scuti Stars Using TESS Data

Atila Poro, Hossein Azarara, Ahmad Sarostad +4

The first in-depth photometric study of four Delta Scuti stars was performed. We used time series data from the Transiting Exoplanet Survey Satellite (TESS) that is available in di…

astro-ph.SR2024

BSN: The First Photometric Analysis of Contact Binary Systems V1961 Cyg and V0890 Lyr

Sabrina Baudart, Atila Poro

We presented the first photometric analysis of the V1961 Cyg and V0890 Lyr binary systems. We observed and analyzed these systems at an observatory in France as part of the Binary…

astro-ph.SR2024

BSN: The First Light Curve Analysis of the Total Eclipse Binary System EL Tuc

Elham Sarvari, Eduardo Fernández Lajús, Atila Poro

We conducted the first light curve study of the binary star EL Tuc within the Binary Systems of South and North (BSN) Project framework. The photometric observations were made usin…

astro-ph.SR2024

Reanalyzing the Light Curves and Absolute Parameters of Twenty Contact Binary Stars Using TESS Data

Ehsan Paki, Atila Poro

Reanalyzing contact binaries with space-based photometric data and investigating possible parameter changes can yield accurate samples for theoretical studies. We investigated ligh…

astro-ph.SR2024

BSN: First Photometric Light Curve Analysis of Two W-type Contact Binary Systems OP Boo and V0511 Cam

Atila Poro, Mehmet Tanriver, Ahmet Keskin +5

This study presented the first light curve analysis of the OP Boo and V0511 Cam binary stars, which was conducted in the frame of the Binary Systems of South and North (BSN) Projec…

astro-ph.SR2024

First Light Curve Analysis of NSVS 8294044, V1023 Her, and V1397 Her Contact Binary Systems

Atila Poro, Sabrina Baudart, Mahshid Nourmohammad +7

The first photometric light curve investigation of the NSVS 8294044, V1023 Her, and V1397 Her binary systems is presented. We used ground-based observations for the NSVS 8294044 sy…

astro-ph.SR2024

Estimating the Absolute Parameters of W UMa-type Binary Stars Using Gaia DR3 Parallax

Atila Poro, Mahya Hedayatjoo, Maryam Nastaran +7

The accuracy of absolute parameters' estimation in contact binary systems is important for investigating their evolution and solving some challenges. The Gaia DR3 parallax is one o…