265 citations · 968 across the 28 of their papers we have counts for
23 papers
Orbital and stellar parameter determination of eclipsing Cep pulsators
C. I. Eze, G. Handler, F. Kahraman Aliçavuş +2
Eclipsing binaries provide precise constraints on stellar properties and evolution, making those hosting Cep pulsators particularly valuable for characterising massive pulsatin…
Investigating Potential Relationships Between Mass Transfer Indicators and Scuti Pulsations in oEA Systems
E. Çelik, F. Kahraman Aliçavuş
We explored potential associations between ongoing mass transfer and the pulsation properties of Scuti primaries in a sample of 17 oscillating eclipsing Algol systems. For this…
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…
Eclipsing binary systems with Cephei components. V1216 Sco
A. Miszuda, C. I. Eze, F. Kahraman Alicavus +2
We present a detailed analysis of the high-mass binary system V1216 Sco, an eclipsing Algol-type binary hosting a Cephei pulsator, with an orbital period of 3.92 days. This sys…
A Comprehensive Study of an Oscillating Eclipsing Algol: Y Cam
Eda Celik, Filiz Kahraman Alicavus
Y Cam is classified as one of the oscillating Eclipsing Algol (oEA) systems, which feature a Scuti-type pulsating component alongside mass transfer phenomena. oEA systems are i…
Discovery of Delta Scuti variables in eclipsing binary systems II.Southern TESS field search
F. Kahraman Alicavus, G. C. Coban, E. Celik +3
The presence of pulsating stars in eclipsing binary systems (EBs) makes these objects significant since they allow us to investigate the stellar interior structure and evolution. D…
Comprehensive spectroscopic and photometric study of pulsating eclipsing binary star AI Hya
F. Kahraman Alicavus, T. Pawar, K. G. Hełminiak +9
The pulsating eclipsing binaries are remarkable systems that provide an opportunity to probe the stellar interior and to determine the fundamental stellar parameters precisely. Esp…
Analysis of TESS field eclipsing binary star V948 Her: a pulsating or non-pulsating star?
F. Kahraman Alicavus, O. Ekinci
Pulsating stars occupy a significant place in the H-R diagram and it was thought that all stars inside the classical instability strip should pulsate. However, recent studies showe…
Mass transfer and tidally tilted pulsation in the Algol-type system TZ Dra
F. Kahraman Alicavus, G. Handler, F. Alicavus +6
Oscillating eclipsing Algols (oEAs) are remarkable systems which allow us to determine accurate fundamental stellar parameters (mass, radius) and probe the stellar interiors throug…
A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020
S. A. Rappaport, D. W. Kurtz, G. Handler +13
We report the discovery of the third tidally tilted pulsator, TIC 63328020. Observations with the TESS satellite reveal binary eclipses with an orbital period of 1.1057 d, and …
Empirical Bolometric Correction Coefficients for Nearby Main-Sequence Stars in Gaia Era
Z. Eker, F. Soydugan, S. Bilir +6
Nearby detached double-lined eclipsing binaries with most accurate data were studied and 290 systems were found with at least one main-sequence component having a metallicity $0.00…
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 (…
The single-sided pulsator CO~Camelopardalis
D. W. Kurtz, G. Handler, S. A. Rappaport +10
CO~Cam (TIC 160268882) is the second ``single-sided pulsator'' to be discovered. These are stars where one hemisphere pulsates with a significantly higher amplitude than the other…
Tidally Trapped Pulsations in a close binary star system discovered by TESS
G. Handler, D. W. Kurtz, S. A. Rappaport +12
It has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have been searched for, b…
Spectroscopy of hot Gamma Doradus and A-F hybrid Kepler candidates close to the hot border of the Delta Scuti instability strip
F. Kahraman Alicavus, E. Poretti, G. Catanzaro +4
If Gamma Dor-type pulsations are driven by the convective blocking mechanism, a convective envelope at a sufficient depth is essential. There are several hot Gamma Dor and hybrid s…
The first view of Scuti and Doradus stars with the TESS mission
V. Antoci, M. S. Cunha, D. M. Bowman +63
We present the first asteroseismic results for Scuti and Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilise the 2-min cadence TESS data for a sample…
Detailed spectroscopic and photometric study of three detached eclipsing binaries
Filiz Kahraman Alicavus, Fahri Alicavus
Detached eclipsing binaries are remarkable systems to provide accurate fundamental stellar parameters. The fundamental stellar parameters and the metallicity values of stellar syst…
Asteroseismology of massive stars with the TESS mission: the runaway Beta Cep pulsator PHL 346 = HN Aqr
Gerald Handler, Andrzej Pigulski, Jadwiga Daszyńska-Daszkiewicz +21
We report an analysis of the first known Beta Cep pulsator observed by the TESS mission, the runaway star PHL 346 = HN Aqr. The star, previously known as a singly-periodic pulsator…
Interrelated Main-Sequence Mass-Luminosity, Mass-Radius and Mass-Effective Temperature Relations
Z. Eker, V. Bakis, S. Bilir +7
Absolute parameters of 509 main-sequence stars selected from the components of detached-eclipsing spectroscopic binaries in the Solar neighbourhood are used to study mass-luminosit…
An astrometric and spectroscopic study of the Scuti variable HD21190 and its wide companion CPD -83 64B
E. Niemczura, R. -D. Scholz, S. Hubrig +4
Although pulsations of Scuti type are not expected among Ap stars from a theoretical point of view, previous observations of the known Scuti star HD21190 indicated a spectr…
Eclipsing binary stars with a Scuti component
F. Kahraman Aliçavuş, E. Soydugan, B. Smalley +1
Eclipsing binaries with a Sct component are powerful tools to derive the fundamental parameters and probe the internal structure of stars. In this study, spectral analysis of 6…
Spectroscopic Survey of γ Doradus Stars I. Comprehensive atmospheric parameters and abundance analysis of γ Doradus stars
F. Kahraman-Alicavus, E. Niemczura, P. De Cat +11
We present a spectroscopic survey of known and candidate \,Doradus stars. The high-resolution, high signal-to-noise spectra of 52 objects were collected by five different spectr…
Towards Understanding the Nature of Young Detached Binary System HD 350731
F. Soydugan, F. Alicavus, S. Bilir +3
The young binary system HD 350731 is a noteworthy laboratory for studying early-type binaries with similar components. We present here the analysis of differential multi-color phot…