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- ID:
- ivo://CDS.VizieR/V/118
- Title:
- Catalog of eclipsing binaries parameters
- Short Name:
- V/118
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue contains information about 44 binaries with known photometric orbit elements and unknown spectroscopic one.
- ID:
- ivo://CDS.VizieR/V/42
- Title:
- Close double stars
- Short Name:
- V/42
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue is a new edition of the catalogue of the photometric and absolute elements of close double systems by Svechnikov (ref 142). After the appearance of this catalogue(1969), the numerous new data concerning both photometric and spectroscopic elements of orbits of the eclipsing binaries were published. The precision of determination of the light curves of eclipsing systems is essentially augmented; now, the light curves of eclipsing binaries are obtained mainly by means of multicolour photoelectric observations; for a number of systems,e extra-atmospheric observations from satellites and orbital astronomical observatories are available. More details are available in original.txt.
- ID:
- ivo://CDS.VizieR/J/A+AS/118/381
- Title:
- COU 247, ADS 3672 & ADS 15182 observations
- Short Name:
- J/A+AS/118/381
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This paper presents new orbits for two visual double stars COU 247 (CCDM 00095+1907) and ADS 3672 (STT 95, CCDM 05055+1948) and a revised orbit for ADS 15182 (A 772, CCDM 21395+3009) computed by the Thiele-van den Bos method.
- ID:
- ivo://CDS.VizieR/J/A+A/645/A7
- Title:
- Determining true mass of RV exoplanets with Gaia
- Short Name:
- J/A+A/645/A7
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Mass is one of the most important parameters for determining the true nature of an astronomical object. Yet, many published exoplan- ets lack a measurement of their true mass, in particular those detected as a result of radial-velocity (RV) variations of their host star. For those examples, only the minimum mass, or msini, is known, owing to the insensitivity of RVs to the inclination of the detected orbit compared to the plane of the sky. The mass that is given in databases is generally that of an assumed edge-on system (~90{deg}), but many other inclinations are possible, even extreme values closer to 0{deg} (face-on). In such a case, the mass of the published object could be strongly underestimated by up to two orders of magnitude. In the present study, we use GASTON, a recently developed tool taking advantage of the voluminous Gaia astrometric database to constrain the inclination and true mass of several hundreds of published exoplanet candidates. We find 9 exoplanet candidates in the stellar or brown dwarf (BD) domain, among which 6 were never characterized. We show that 30 Ari B b, HD 141937 b, HD 148427 b, HD 6718 b, HIP 65891 b, and HD 16760 b have masses larger than 13.5 M_J_ at 3{sigma}. We also confirm the planetary nature of 27 exoplanets, including HD 10180 c, d and g. Studying the orbital periods, eccentricities, and host-star metallicities in the BD domain, we found distributions with respect to true masses consistent with other publications. The distribution of orbital periods shows of a void of BD detections below ~100d, while eccentricity and metallicity distributions agree with a transition between BDs similar to planets and BDs similar to stars in the range 40-50M_J_.
- ID:
- ivo://CDS.VizieR/J/A+AS/134/545
- Title:
- Double star measurements 1995-1997
- Short Name:
- J/A+AS/134/545
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present speckle observations of 48 double and multiple stars observed with the 2-meter ``Telescope Bernard Lyot'' (TBL) in December 1995, January 1997 and June 1997. Angular separations, absolute position angles and relative photometry result from these observations. New orbital elements have been recalculated for 8 double stars.
- ID:
- ivo://CDS.VizieR/J/A+AS/132/237
- Title:
- Double stars measurements
- Short Name:
- J/A+AS/132/237
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- 624 Micrometer Measurements of 224 pairs with a 32.5 cm Cassegrain, 719 Measurements of 310 double stars with a 360 mm Newtonian are given.
- ID:
- ivo://CDS.VizieR/J/PAZh/26/301
- Title:
- Dynamical stability of triple stars
- Short Name:
- J/PAZh/26/301
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The dynamic stability of 38 observed hierarchical triple stars with known orbital elements of the internal and external binary subsystems and component masses is considered. Four different criteria of dynamical stability are used. The observed stability parameters and their critical values are calculated by taking into account errors in the orbital elements and component masses.
- ID:
- ivo://CDS.VizieR/J/AZh/82/231
- Title:
- Dynamic stability of selected multiple stars
- Short Name:
- J/AZh/82/231
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The abundances of chemical elements in the atmospheres of seven classical barium stars are derived.
- ID:
- ivo://CDS.VizieR/J/MNRAS/414/1278
- Title:
- Eccentricities of transiting planets
- Short Name:
- J/MNRAS/414/1278
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The two dominant features in the distribution of orbital parameters for close-in exoplanets are the prevalence of circular orbits for very short periods, and the observation that planets on closer orbits tend to be heavier. The first feature is interpreted as a signature of tidal evolution, while the origin of the second, a 'mass-period relation' for hot Jupiters, is not understood. In this paper we reconsider the ensemble properties of transiting exoplanets with well-measured parameters, focusing on orbital eccentricity and the mass-period relation. We recalculate the constraints on eccentricity in a homogeneous way, using new radial velocity data, with particular attention to statistical biases. We find that planets on circular orbits gather in a well-defined region of the mass-period plane, close to the minimum period for any given mass. Exceptions to this pattern reported in the literature can be attributed to statistical biases. The ensemble data is compatible with classical tide theory with orbital circularization caused by tides raised on the planet, and suggest that tidal circularization and the stopping mechanisms for close-in planets are closely related to each other. The position mass-period relation is compatible with a relation between a planet's Hill radius and its present orbit.
