58 citations · 192 across the 13 of their papers we have counts for
13 papers
Quantifying sunspot group nesting with density-based unsupervised clustering
Nurdan Karapinar, Emre Isik, Natalie A. Krivova +1
Sunspot groups often emerge in spatial-temporal clusters, known as nests or complexes of activity. Quantifying how frequently such nesting occurs is important for understanding the…
A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations
Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston +49
Kepler-51 is a -old Sun-like star hosting three transiting planets with radii - and orbital periods -$130\,\mathrm{day…
First Chromospheric Activity and Doppler Imaging Study of PW And Using a New Doppler Imaging Code: SpotDIPy
Engin Bahar, Hakan V. Şenavcı, Emre Işık +4
Measuring coverage of dark spots on cool stars is important in understanding how stellar magnetic activity scales with the rotation rate and convection zone depth. In this respect,…
TOI-1431b/MASCARA-5b: A Highly Irradiated Ultra-Hot Jupiter Orbiting One of the Hottest & Brightest Known Exoplanet Host Stars
Brett Christopher Addison, Emil Knudstrup, Ian Wong +70
We present the discovery of a highly irradiated and moderately inflated ultra-hot Jupiter, TOI-1431b/MASCARA-5b (HD 201033b), first detected by NASA's Transiting Exoplanet Survey S…
The CARMENES search for exoplanets around M dwarfs -- LP 714-47b (TOI 442.01): Populating the Neptune desert
S. Dreizler, I., J. +134
We report the discovery of a Neptune-like planet (LP 714-47 b, P = 4.05204 d, m_b = 30.8 +/- 1.5 M_earth , R_b = 4.7 +/- 0.3 R_earth ) located in the 'hot Neptune desert'. Confirma…
Star-spot distributions and chromospheric activity on the RS CVn type eclipsing binary SV Cam
H. V. Şenavcı, E. Bahar, D. Montes +5
Using a time series of high-resolution spectra and high-quality multi-colour photometry, we reconstruct surface maps of the primary component of the RS CVn type rapidly rotating ec…
Starspot activity and differential rotation in KIC 11560447
Emre Isik, Ibrahim Ozavci, Hakan V. Senavci +4
Using high-precision photometry from the \textit{Kepler} mission, we investigate patterns of spot activity on the K1-type subgiant component of KIC 11560447, a short-period late-ty…
Photometric, Spectroscopic and Orbital Period Study of Three Early Type Semi-detached Systems: XZ Aql, UX Her and AT Peg
S. Zola, O. Basturk, A. Liakos +6
In this paper we present a combined photometric, spectroscopic and orbital period study of three early-type eclipsing binary systems: XZ Aql, UX Her, and AT Peg. As a result, we ha…
The Absolute Parameters of The Detached Eclipsing Binary V482 Per
Ozgur Basturk, Staszek Zola, Alexios Liakos +6
We present the results of the spectroscopic, photometric and orbital period variation analyses of the detached eclipsing binary \astrobj{V482~Per}. We derived the absolute paramete…
Photometric analysis of overcontact binaries AK Her, HI Dra, V1128 Tau and V2612 Oph
S. Caliskan, O. Latkovic, G. Djurasevic +7
We analyze new, high quality multicolor light curves of four overcontact binaries: AK Her, HI Dra, V1128 Tau and V2612 Oph, and determine their orbital and physical parameters usin…
The DWARF project: Eclipsing binaries - precise clocks to discover exoplanets
T. Pribulla, M. Vaňko, M. Ammler - von Eiff +53
We present a new observational campaign, DWARF, aimed at detection of circumbinary extrasolar planets using the timing of the minima of low-mass eclipsing binaries. The observation…
Physical Parameters of Some Close Binaries: ET Boo, V1123 Tau, V1191 Cyg, V1073 Cyg and V357 Peg
F. Ekmekçi, A. Elmaslı, M. Yılmaz +7
With the aim of providing new and up-to-date absolute parameters of some close binary systems, new BVR CCD photometry was carried out at the Ankara University Observatory (AUG) for…
Surface Brightness Variation of the Contact Binary SW Lac: Clues From Doppler Imaging
H. V. Şenavcı
In this study, we present the preliminary light curve analysis of the contact binary SW Lac, using B, V light curves of the system spanning 2 years (2009 - 2010). During the spot m…