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Related papers: Differential HBT Method for Binary Stars

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The principal goal of this paper is to specify conditions of detection of unresolved binaries by multicolor photometry. We have developed a method for estimating the critical distance at which an unresolved binary of given mass and age can…

Solar and Stellar Astrophysics · Physics 2018-03-14 D. Chulkov , M. Prokhorov , O. Malkov , S. Sichevskij , N. Krussanova , A. Mironov , A. Zakharov , A. Kniazev

We propose an extended formalism for the spectral broadening function (BF) based on the multiplication rule of block matrices. The formalism, which we named the binary broadening function (BBF), can produce decomposed BFs for individual…

Solar and Stellar Astrophysics · Physics 2024-03-05 Tuan Yi

We have developed a comprehensive methodology for calculating the circumbinary HZ in planet-hosting P-type binary star systems. We present a general formalism for determining the contribution of each star of the binary to the total flux…

Earth and Planetary Astrophysics · Physics 2015-06-16 N. Haghighipour , L. Kaltenegger

The presence of companion stars, whether bound or unbound, make correct identification of the planetary hosting star difficult when a planet has been detected through a photometrically blended transiting event. We present an approach that…

Earth and Planetary Astrophysics · Physics 2018-11-14 Alan Payne , David Ciardi , Stephen Kane , Brad Carter

Hanbury Brown--Twiss interferometry (HBT) provides crucial insights into both the space-time structure and the momentum-space evolution of ultrarelativistic nuclear collisions at freeze-out. In particular, the dependence of the HBT radii on…

Nuclear Theory · Physics 2020-11-18 Christopher Plumberg

Knowledge of the binary population in stellar groupings provides important information about the outcome of the star forming process in different environments. Binarity is also a key ingredient in stellar population studies and is a…

We examine the motion of a photon in the gravitational field of a binary system. The equations of motion are geodesic equations in a Schwarzchild background with a tidal force. We specialize the equations to that of an edge-on binary and…

General Relativity and Quantum Cosmology · Physics 2021-08-31 Nahid Ahmadi , Zainab Sedaghatmanesh

The BDB, Binary star DataBase http://bdb.inasan.ru combines data of the catalogues of binary and multiple stars of all observational types. There is a number of ways for variable stars to form or to be a part of binary or multiple systems.…

Instrumentation and Methods for Astrophysics · Physics 2019-04-03 D. Kovaleva , O. Malkov , P. Kaygorodov

The second-order photon correlation function is of great importance in quantum optics which is typically measured with the Hanbury Brown and Twiss interferometer which employs a pair of single-photon detectors and a dual-channel time…

Quantum Physics · Physics 2021-02-02 Shaojie Liu , Xing Lin , Feng Liu , Hairui Lei , Wei Fang , Chaoyuan Jin

During the past 20 years, the idea that non-spherical planetary nebulae (PN) may need a binary or planetary interaction to be shaped was discussed by various authors. It is now generally agreed that the varied morphologies of PN cannot be…

The results of an adaptive optics survey of exoplanet host stars for stellar companions is presented. We used the AEOS Telescope and its adaptive optics system to collect deep images of the stars in $I$-band. Sixty-two exoplanet host stars…

Solar and Stellar Astrophysics · Physics 2015-05-30 Lewis C. Roberts , Nils H. Turner , Theo A. ten Brummelaar , Brian D. Mason , William I. Hartkopf

To determine the parameters (masses, orbital period) of a binary, one requires among others the inclination, which is best determined from a visual orbit. The next generation of interferometers can provide visual orbits for a large number…

Astrophysics · Physics 2007-05-23 Frank Verbunt

This work analyzes four Sun-like double-lined spectroscopic binary (SB2) systems by combining visual and spectroscopic observational data with Al-Wardat's atmospheric modeling method to accurately determine their fundamental parameters. For…

Straight-forward derivation of planetary parameters can only be achieved in transiting planetary systems. However, planetary attributes such as radius and mass strongly depend on stellar host parameters. Discovering a transit host star to…

Solar and Stellar Astrophysics · Physics 2015-05-13 S. Daemgen , F. Hormuth , W. Brandner , C. Bergfors , M. Janson , S. Hippler , Th. Henning

A review on the two-pion Hanbury-Brown-Twiss (HBT) interferometry in the granular source model of quark-gluon plasma droplets is presented. The characteristic quantities of the granular source extracted by imaging analysis are presented and…

Nuclear Theory · Physics 2012-03-01 Wei-Ning Zhang

A theory is derived relating the configuration of the cores of active galaxies, specifically candidates for presumed super-massive black hole binaries (SMBHBs), to time-dependent changes in images of those galaxies. Three deflection…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Edmund Schluessel

The Hanbury Brown and Twiss effect (HBT) is described by numerical and analytical modeling, as well as experimentally, using sound waves and easily available instrumentation. An interesting phenomenon that has often been considered too…

Physics Education · Physics 2022-01-12 Arnt Inge Vistnes , Joakim Bergli

O- and B-type stars are often found in binary systems, but the low binary mass-ratio regime is relatively unexplored due to observational difficulties. Binary systems with low mass-ratios may have formed through fragmentation of the…

Solar and Stellar Astrophysics · Physics 2015-06-11 Kevin Gullikson , Sarah Dodson-Robinson

Preliminary results of identical-particle correlations probing the geometric substructure of the particle-emitting source at RHIC are presented. An $m_T$-independent scaling of pion HBT radii from large (central Au+Au) to small (p+p)…

Nuclear Experiment · Physics 2009-09-29 Z. Chajecki

Eclipsing binary systems with pulsating components offer a unique possibility to accurately measure the most important parameters of pulsating stars, to study their evolution, and to test the pulsation theory. I will show what we can learn…

Solar and Stellar Astrophysics · Physics 2018-07-04 Bogumił Pilecki