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Compact stellar binaries are expected to survive in the dense environment of the Galactic Center. The stable binaries may undergo Kozai-Lidov oscillations due to perturbations from the central supermassive black hole (Sgr A*), yet the…

Solar and Stellar Astrophysics · Physics 2017-12-27 Gongjie Li , Idan Ginsburg , Smadar Naoz , Abraham Loeb

We report results from a search for Galactic high-mass eclipsing binaries. The photometric monitoring campaign was performed in Sloan $r$ and $i$ with the robotic twin refractor RoBoTT at the Universit\"atssternwarte Bochum in Chile and…

Solar and Stellar Astrophysics · Physics 2019-11-12 F. Pozo Nuñez , R. Chini , A. Barr Domínguez , Ch. Fein , M. Hackstein , Pietrzyński , Grzegorz , M. Murphy

Binary mass transfer is at the forefront of some of the most exciting puzzles of modern astrophysics, including Type Ia supernovae, gamma-ray bursts, and the formation of most observed exotic stellar populations. Typically, the evolution is…

Solar and Stellar Astrophysics · Physics 2016-02-17 Nathan W. C. Leigh , Aaron M. Geller , Silvia Toonen

Motions of stars in close binary systems with a conservative mass exchange are examined. It is shown that Paczynski-Huang model widely used now for obtaining the semi-major axis variation of a relative stars orbit is incorrect, because it…

Solar and Stellar Astrophysics · Physics 2015-05-20 L. G. Lukyanov , S. A. Gasanov

We explore the formation and evolution of the black hole X-ray binary system M33 X-7. In particular, we examine whether accounting for systematic errors in the stellar parameters inherent to single star models, as well as the uncertainty in…

Solar and Stellar Astrophysics · Physics 2009-02-24 Francesca Valsecchi , Bart Willems , Tassos Fragos , Vicky Kalogera

Pulsating stars in eclipsing binary systems play an important role in asteroseismology. The combination of their spectroscopic and photometric orbital solutions can be used to determine, or at least to constrain, the masses and radii of…

Solar and Stellar Astrophysics · Physics 2014-03-05 D. Drobek , A. Pigulski

In this review I present the binary model for the shaping of planetary nebulae (PNe) as I view it, in the context of historical evolution of other models for the shaping of PNe over more than 30 years. In describing the binary model, I…

Astrophysics · Physics 2007-05-23 Noam Soker

We present observations of a new low-mass double-lined eclipsing binary system discovered using repeat observations of the celestial equator from the Sloan Digital Sky Survey II. Using near-infrared photometry and optical spectroscopy we…

Astrophysics · Physics 2010-04-29 Cullen H. Blake , Guillermo Torres , Joshua S. Bloom , B. Scott Gaudi

We present the first evidence for the binarity of four targets in the TESS field. The temperatures are estimated by SED analysis and the orbital periods are determined. The TESS light curves of the systems are analysed and the orbital and…

Solar and Stellar Astrophysics · Physics 2022-01-05 Burak Ulas

The fundamental properties of detached eclipsing binary stars can be measured very accurately, which could make them important objects for constraining the treatment of convection in theoretical stellar models. However, only four or five…

Astrophysics · Physics 2009-11-11 John Southworth , Hans Bruntt

We now know that a large number of stars are born in multiple systems. Additionally, more than 70% of massive stars are found in close binary systems, meaning that they will interact over the course of their lifetime. This has strong…

Solar and Stellar Astrophysics · Physics 2020-01-31 Heloise F. Stevance , J. J. Eldridge , Elizabeth Stanway

With the advent of large-scale photometric surveys of the sky, modern science witnesses the dawn of big data astronomy, where automatic handling and discovery are paramount. In this context, classification tasks are among the key…

Solar and Stellar Astrophysics · Physics 2023-02-03 I. V. Daza-Perilla , L. V. Gramajo , M. Lares , T. Palma , C. E. Ferreira Lopes , D. Minniti , J. J. Clariá

In the last decade, over 7000 eclipsing binaries have been discovered in the Local Group through various variability surveys. Measuring fundamental parameters of these eclipsing binaries has become feasible with 8 meter class telescopes,…

Astrophysics · Physics 2009-02-18 A. Z. Bonanos

Many problems in contemporary astrophysics---from understanding the formation of black holes to untangling the chemical evolution of galaxies---rely on knowledge about binary stars. This, in turn, depends on discovery and characterization…

Gravitational microlensing provides a unique opportunity to probe the mass distribution of stars, black holes, and other objects in the Milky Way. Population simulations are necessary to interpret results from microlensing surveys. The…

Solar and Stellar Astrophysics · Physics 2025-01-08 Natasha S. Abrams , Jessica R. Lu , Casey Y. Lam , Michael S. Medford , Matthew W. Hosek, , Sam Rose

Most studies of mass transfer in binary systems assume circular orbits at the onset of Roche lobe overflow. However, there are theoretical and observational indications that mass transfer could occur in eccentric orbits. In particular,…

Solar and Stellar Astrophysics · Physics 2019-02-27 Adrian S. Hamers , Fani Dosopoulou

This article was co-authored by all invited speakers at the Joint Discussion on `Neutron Stars and Black Holes in Star Clusters,' which took place during the IAU General Assembly in Prague, Czech Republic, on August 17 and 18, 2006. Each…

Most methods of orbit determination are often difficult for numerical implementations since they are developed before the computer era. The recently developed mathematical technique of semi-definite programming (SDP) has been implemented…

Solar and Stellar Astrophysics · Physics 2010-07-30 Budi Dermawan , Moch. Irfan , Suryadi Siregar , Denny Mandey , Hanindyo Kuncarayakti , Djoko Suprijanto

Eclipsing binaries offer a unique opportunity to determine fundamental physical parameters of stars using the constraints on the geometry of the systems. Here we present a reanalysis of publicly available two-color observations of about…

Astrophysics · Physics 2009-03-09 A. Derekas , L. L. Kiss , T. R. Bedding
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