English
Related papers

Related papers: Light Curve Analysis of the AP Dor Binary System u…

200 papers

We report the detection of a very low mass star (VLMS) companion to the primary star 1SWASPJ234318.41+295556.5A (J2343+29A), using radial velocity (RV) measurements from the PARAS (PRL Advanced Radial-velocity Abu-sky Search) high…

Solar and Stellar Astrophysics · Physics 2016-07-13 Priyanka Chaturvedi , Abhijit Chakraborty , B. G. Anandarao , Arpita Roy , Suvrath Mahadevan

Multi-band photometric observations of eleven totally eclipsing contact binaries were carried out. Applying the Wilson-Devinney program, photometric solutions were obtained. There are two W-subtype systems, which are CRTS J133031.1+161202…

Solar and Stellar Astrophysics · Physics 2023-01-18 Xin-Yi Liu , Kai Li , Raul Michel , Xiang Gao , Xing Gao , Fei Liu , Shi-Peng Yin , Xi Wang , Guo-You Sun

We present the Apache Point Observatory BG40 broadband and simultaneous Gemini $r$-band and $i$-band high-speed follow-up photometry observations and analysis of the 40.5 minute period eclipsing detached double-degenerate binary SDSS…

Solar and Stellar Astrophysics · Physics 2020-12-23 Alekzander Kosakowski , Mukremin Kilic , Warren R. Brown

This paper presents the first analysis of the contact binary TYC 3801-1529-1. We observed four sets of multiple bands complete light curves and one set of radial velocity curve of the primary component. Based on a simultaneous investigation…

Solar and Stellar Astrophysics · Physics 2024-12-04 Kai Li , Xiang Gao , Di-Fu Guo , Dong-Yang Gao , Xu Chen , Li-Heng Wang , Yu-Xin Xin , Yu-Xin Han , Chun-Hwey Kim , Min-Ji Jeong

We present an application of computer vision methods to classify the light curves of eclipsing binaries (EB). We have used pre-trained models based on convolutional neural networks ($\textit{ResNet50}$) and vision transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Štefan Parimucha , Maksim Gabdeev , Yanna Markus , Martin Vaňko , Pavol Gajdoš

We present radial velocities of the double-lined spectroscopic binary NP Aqr. The radial velocities and the optical light curves obtained by Hipparcos and ASAS-3 are analyzed separately. The masses of the primary and secondary components…

Solar and Stellar Astrophysics · Physics 2014-11-20 C. Ibanoglu , O. Cakirli , A. Dervisoglu

AA Dor is an eclipsing, close, post common-envelope binary (PCEB) consisting of a sdOB primary star and an unseen cool companion with an extraordinary low mass. The evolution of this system appears enigmatic - results of a recent spectral…

Astrophysics · Physics 2009-11-10 T. Rauch

The unusual light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.…

Solar and Stellar Astrophysics · Physics 2025-04-16 Douglas R. Gies , Katherine A. Shepard , Aman Kar , Noel D. Richardson

We present the characterization of 5 new short-period low-mass eclipsing binaries from the WFCAM Transit Survey. The analysis was performed by using the photometric WFCAM J-mag data and additional low- and intermediate-resolution…

Solar and Stellar Astrophysics · Physics 2018-03-21 Patricia Cruz , Marcos Diaz , Jayne Birkby , David Barrado , Brigitta Sipöcz , Simon Hodgkin

This study presents photometric solutions for a carefully selected sample of 181 detached eclipsing binary systems recently observed by the Transiting Exoplanet Survey Satellite (TESS) mission. Our findings contribute to discussions about…

Solar and Stellar Astrophysics · Physics 2024-05-02 L. Siqueira , B. W. Freitas , D. B. de Freitas

Aims. We present new photometry of the faint and poorly studied cataclysmic variable SDSS J152419.33+220920.0, analyze its light curve and provide an accurate ephemeris for this system. Methods. Time-resolved CCD differential photometry was…

Solar and Stellar Astrophysics · Physics 2015-06-15 R. Michel , J. Echevarria , J. V. Hernandez-Santisteban

We introduce a special class of functions for mathematical modeling of periodic signals of special shape with irregularly spaced arguments. This method was developed for determination of phenomenological characteristics of the light curves,…

Solar and Stellar Astrophysics · Physics 2015-06-11 Ivan L. Andronov

We present new observations of the transiting system TrES-3 obtained from 2009 to 2011 at several observatories. The orbital parameters of the system were re- determined and a new linear ephemeris was calculated. The best quality light…

Solar and Stellar Astrophysics · Physics 2015-06-15 M. Vanko , G. Maciejewski , M. Jakubik , T. Krejcova , J. Budaj , T. Pribulla , J. Ohlert , St. Raetz , S. Parimucha , L. Bukowiecki

A sample of 542 eclipsing binaries (EBs) with periods shorter than 2 d were selected from the Microlensing Observations in Astrophysics (MOA) EB catalogue (Li et al. 2017) for eclipse-time variation analysis. For this sample we were able to…

Eclipsing binaries serve as a valuable source of stellar masses and radii that inform stellar evolutionary models and provide insight into additional astrophysical processes. The exquisite light curves generated by space-based missions such…

Solar and Stellar Astrophysics · Physics 2016-05-25 Rachel A. Matson , Douglas R. Gies , Zhao Guo , Jerome A. Orosz

AP And is a well-detached F5 eclipsing binary star for which only a very limited amount of information was available before this publication. We have obtained very extensive measurements of the light curve (19097 differential V magnitude…

Solar and Stellar Astrophysics · Physics 2015-06-19 Claud H. Sandberg Lacy , Guillermo Torres , Francis C. Fekel , Matthew W. Muterspaugh

We present the binary model and the eclipse timing variations of the eclipsing binary RR Cae, which consists of a white dwarf eclipsed by an M-type dwarf companion. The multi-wavelength optical photometry from the Transiting Exoplanet…

The period distribution of contact binaries exhibits a very sharp short period cut-off at 0.22 days. In order to provide valuable information on this short period limit, we observed ten totally eclipsing contact binaries with orbital…

Solar and Stellar Astrophysics · Physics 2019-03-20 Kai Li , Qi-Qi Xia , Raul Michel , Shao-Ming Hu , Di-Fu Guo , Xing Gao , Xu Chen , Dong-Yang Gao

We present observations of fields containing eight recently discovered binary millisecond pulsars using the telescopes at MDM Observatory. Optical counterparts to four of these systems are detected, one of which, PSR J2214+3000, is a novel…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Joshua Schroeder , Jules Halpern

We calculated physical and orbital properties for 2M06464003+0109157, a 1.06 day eclipsing double lined spectroscopic binary. We modelled the system's ASAS-SN and TESS light curves, measuring the system's inclination and radii of each…

Solar and Stellar Astrophysics · Physics 2021-03-31 Annaliese Miller , Marina Kounkel , Chase Boggio , Kevin Covey , Adrian M. Price-Whelan
‹ Prev 1 8 9 10 Next ›