- ID:
- ivo://CDS.VizieR/J/other/PASA/31.24
- Title:
- Milky Way detached double-lined EB catalog
- Short Name:
- J/other/PASA/31.
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The most accurate stellar astrophysical parameters were collected from the solutions of the light and the radial velocity curves of 257 detached double-lined eclipsing binaries in the Milky Way. The catalogue contains masses, radii, surface gravities, effective temperatures, luminosities, projected rotational velocities of the component stars, and the orbital parameters. The number of stars with accurate parameters increased 67% in comparison to the most recent similar collection by Torres, Andersen, & Gimenez (2010, Cat. J/other/A+ARv/18.67). Distributions of some basic parameters were investigated. The ranges of effective temperatures, masses, and radii are (K)<43000, 0.18<M/M_{sun}_<33, and 0.2<R/R_{sun}_<21.2, respectively. Being mostly located in one kpc in the Solar neighborhood, the present sample covers distances up to 4.6kpc within the two local Galactic arms, Carina-Sagittarius and Orion Spur. The number of stars with both mass and radius measurements better than 1% uncertainty is 93, better than 3% uncertainty is 311, and better than 5% uncertainty is 388. It is estimated from the Roche lobe filling factors that 455 stars (88.5% of the sample) are spherical within 1% of uncertainty.
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Search Results
- ID:
- ivo://CDS.VizieR/J/other/IBVS/5731
- Title:
- Minima and maxima of 816 variables
- Short Name:
- J/other/IBVS/573
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In this 55th compilation of BAV results, photoelectric observations obtained in the years 2005 till 2006 are presented on 816 variable stars giving 1722 minima and maxima. All moments of minima and maxima are heliocentric. The values in column 'O-C' are determined without incorporation of nonlinear terms. The references are given in the section 'Remarks'. All information about photometers and filters are specified in the column 'Rem'. The observations were made at private observatories. The photoelectric measurements and all the lightcurves with evaluations can be obtained from the office of the BAV for inspection.
- ID:
- ivo://CDS.VizieR/J/other/IBVS/5959
- Title:
- Minima and maxima of 436 variables
- Short Name:
- J/other/IBVS/595
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In this 68th compilation of BAV results, photoelectric observations obtained in the year 2010 are presented on 436 variable stars giving 784 minima on eclipsing binaries and maxima on pulsating stars. All moments of minima and maxima are heliocentric. The errors are tabulated in column '+/-'. The values in column 'O-C' are determined without incorporation of nonlinear terms.The references are given in the section 'Remarks'. All information about photometers and filters are specified in the column 'Rem'. The observations were made at private observatories. The photoelectric measurements and all the lightcurves with evaluations can be obtained from the office of the BAV for inspection.
- ID:
- ivo://CDS.VizieR/J/other/IBVS/5984
- Title:
- Minima and maxima of 503 variables
- Short Name:
- J/other/IBVS/598
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In this 69th compilation of BAV results, photoelectric observations obtained in the year 2010 and 2011 are presented on 503 variable stars giving 767 minima on eclipsing binaries and maxima on pulsating stars. All moments of minima and maxima are heliocentric. The errors are tabulated in column '+/-'. The values in column 'O-C' are determined without incorporation of nonlinear terms. The references are given in the section 'Remarks'. All information about photometers and filters are specified in the column 'Rem'. The observations were made at private observatories. The photoelectric measurements and all the light curves with evaluations can be obtained from the office of the BAV for inspection.
- ID:
- ivo://CDS.VizieR/J/AJ/150/178
- Title:
- Minima of 41 binaries from entire Kepler mission
- Short Name:
- J/AJ/150/178
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Many short-period binary stars have distant orbiting companions that have played a role in driving the binary components into close separation. Indirect detection of a tertiary star is possible by measuring apparent changes in eclipse times of eclipsing binaries as the binary orbits the common center of mass. Here we present an analysis of the eclipse timings of 41 eclipsing binaries observed throughout the NASA Kepler mission of long duration and precise photometry. This subset of binaries is characterized by relatively deep and frequent eclipses of both stellar components. We present preliminary orbital elements for seven probable triple stars among this sample, and we discuss apparent period changes in seven additional eclipsing binaries that may be related to motion about a tertiary in a long period orbit. The results will be used in ongoing investigations of the spectra and light curves of these binaries for further evidence of the presence of third stars. Fundamental Parameters}
- ID:
- ivo://CDS.VizieR/J/AJ/143/137
- Title:
- Minima of 41 eclipsing binaries from a Kepler survey
- Short Name:
- J/AJ/143/137
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the first results of a Kepler survey of 41 eclipsing binaries that we undertook to search for third star companions. Such tertiaries will periodically alter the eclipse timings through light travel time and dynamical effects. We discuss the prevalence of starspots and pulsation among these binaries and how these phenomena influence the eclipse times. There is no evidence of short-period companions (P<700days) among this sample, but we do find evidence for long-term timing variations in 14 targets (34%). We argue that this finding is consistent with the presence of tertiary companions among a significant fraction of the targets, especially if many have orbits measured in decades. This result supports the idea that the formation of close binaries involves the deposition of angular momentum into the orbital motion of a third star.
- ID:
- ivo://CDS.VizieR/J/AJ/149/197
- Title:
- Minima of 10 Kepler eclipsing binaries
- Short Name:
- J/AJ/149/197
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Analyzing the available photometry from the Kepler satellite and other databases, we performed detailed light curve modeling of 10 eclipsing binary systems that were found to exhibit a periodic modulation of their orbital periods. All of the selected systems are detached Algol type, with orbital periods from 0.9 to 2.9 days. In total, 9448 times of minimum for these binaries were analyzed in an attempt to identify the period variations caused by the third bodies in these systems. The well-known method of the light-travel time effect was used for the analysis. The orbital periods of the outer bodies were found to be between 1 and 14 years. This hypothesis makes such systems interesting for future prospective detections of these components, despite their low predicted masses. Considering the dynamical interaction between the orbits, the system KIC 3440230 seems to be the most interesting, in which one would expect the detection of some effects (i.e., changing the inclination) even after a few years or decades of observations.
- ID:
- ivo://CDS.VizieR/J/AJ/147/130
- Title:
- Minimum times of 7 eclipsing systems
- Short Name:
- J/AJ/147/130
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The minimum timings of eclipsing binaries V418 Aql, SU Boo, RV CVn, CR Cas, GV Cyg, V432 Per, and BD+42 2782 were collected and analyzed. Their long-term behavior was studied via period analysis, revealing a periodic term in eclipse times. We derived 576 new times of minimum. Hence, to describe the periodic variation, a third-body hypothesis was proposed and the resulting orbital periods are as follows: 70, 7.4, 53, 37, 27, 53, and 18 yr, respectively. For the system V432 Per an additional 9.5 yr variation was also found. The predicted minimum masses of these distant bodies were calculated and their detectability discussed. The light curves of SU Boo and RV CVn were analyzed using the PHOEBE program, resulting in physical parameters of the components. New variable stars in the field of V418 Aql were discovered.
- ID:
- ivo://CDS.VizieR/J/MNRAS/382/1073
- Title:
- M/L relation of intermediate-mass stars
- Short Name:
- J/MNRAS/382/1073
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The mass-luminosity relation (MLR) for intermediate-mass stars is based on data on detached main-sequence double-lined eclipsing binaries (DM-DLEB). However, there is a notable difference between the parameters of B0V-G0V components of eclipsing binaries and those of single stars. Single early-type stars are rapid rotators, whereas tidal forces produce synchronous rotation in close binaries and all such pairs are synchronized, so components of close binaries rotate more slowly. As is well known, stellar rotation changes stellar evolution and the global parameters of a star. In this work we collect data on fundamental parameters of stars with masses m>1.5m_{sun}_. They are components of binaries with P>15d and consequently are not synchronized with the orbital periods and presumably are rapid rotators. These stars are believed to evolve similarly with single stars. Modern data on masses, absolute and bolometric luminosities, radii and temperatures of detached main-sequence double-lined eclipsing binary components (i.e. presumably slow rotators) are also collected. Mass-luminosity, mass-temperature and mass-radius relations of close and wide binaries are presented, as well as their Hertzsprung-Russell diagram.
- ID:
- ivo://CDS.VizieR/J/AZh/79/259
- Title:
- Models for Intermediate-Mass Eclipsing Binaries
- Short Name:
- J/AZh/79/259
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We use estimates of ages and abundances made for a set of eclipsing binaries (Kovaleva, 2001, Cat. <J/AZh/78/1104), to re-calculate observational values of radii, effective temperatures and luminosities of these stars for solar abundance ZAMS. Geneva group evolutionary grids of models were used for this recalculation. We also present empirical and semi-empirical (for ZAMS evolutionary stage and solar metallicity) relations between mass and luminosity, temperature and radius.
