English
Related papers

Related papers: The Pulsating sdB+M Eclipsing System NY Virginis a…

200 papers

[abridged] We report four years of radial velocity monitoring observations of SDSS J080531.84+481233.0 that reveal significant and periodic variability, confirming the binary nature of the source. We infer an orbital period of 2.02$\pm$0.03…

Solar and Stellar Astrophysics · Physics 2016-08-17 Adam J. Burgasser , Cullen H. Blake , Christopher R. Gelino , Johannes Sahlmann , Daniella Bardalez Gagliuffi

A new determination of the orbit of the Hyades double-lined spectroscopic binary HD 27149 is presented. The well-defined orbit provides the spectroscopic basis for an extremely accurate orbital parallax for the system -- in particular, the…

Astrophysics · Physics 2007-05-23 Jocelyn Tomkin

In this paper we present the results of a detailed spectroscopic and photometric analysis of the V=13$^m$.4 low-mass eclipsing binary NSVS 06507557 with an orbital period of 0.515 d. We obtained a series of mid-resolution spectra covering…

Solar and Stellar Astrophysics · Physics 2015-05-14 O. Cakirli , C. Ibanoglu

Aims. We report the detection of long-period radial velocity (RV) variations in three giant stars, HD 19615, HD 150010, and HD 174205, using precise RV measurements. Methods. These detections are part of the Search for Exoplanets around…

Earth and Planetary Astrophysics · Physics 2022-06-01 G. Jeong , B. C. Lee , M. G. Park , T. Y. Bang , I. Han

We report the discovery of a compact triply eclipsing triple star system in the southern continuous viewing zone of the TESS space telescope. TIC 278825952 is a previously unstudied, circular eclipsing binary with a period of 4.781 days…

Solar and Stellar Astrophysics · Physics 2020-10-14 T. Mitnyan , T. Borkovits , S. A. Rappaport , A. Pál , P. F. L. Maxted

We report the discovery using the Parkes radio telescope of binary millisecond pulsars in four clusters for which no associated pulsars were previously known. The four pulsars have pulse periods lying between 3 and 6 ms. All are in circular…

Astrophysics · Physics 2009-10-31 N. D'Amico , A. G. Lyne , R. N. Manchester , A. Possenti , F. Camilo

We analyse the dynamics of the multiple planet system HD 181433. This consists of two gas giant planets (c and d) with msin i = 0.65 MJup and 0.53 MJup orbiting with periods 975 and 2468 days, respectively. The two planets appear to be in a…

Earth and Planetary Astrophysics · Physics 2015-06-16 Giammarco Campanella , Richard P. Nelson , Craig B. Agnor

We report the discovery of a new short-period pre-main-sequence eclipsing binary, RX Gru, orbited by a distant circumbinary companion. We characterized the system by analysing the photometric observations from the Solaris network, the…

Solar and Stellar Astrophysics · Physics 2026-05-12 F. Marcadon , A. Moharana , T. B. Pawar , G. Pawar , K. G. Hełminiak , J. P. Marques , M. Konacki

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…

Solar and Stellar Astrophysics · Physics 2015-10-08 D. R. Gies , R. A. Matson , Z. Guo , K. V. Lester , J. A. Orosz , G. J. Peters

We present a preliminary statistical analysis of a period change of eclipsing binaries from the ASAS Catalog of Variable Stars. For each contact and semidetached system brighter than 13.3$mag$ (in V) with a period shorter than 0.4 days and…

Astrophysics · Physics 2007-05-23 Radoslaw Poleski , Bogumil Pilecki

While about a dozen transiting planets have been found in wide orbits around an inner, close stellar binary (so-called "P-type planets"), no planet has yet been detected orbiting only one star (a so-called "S-type planet") in an eclipsing…

Earth and Planetary Astrophysics · Physics 2017-01-18 M. Oshagh , R. Heller , S. Dreizler

We present here the first observationally based determination of the rate of occurrence of circumbinary planets. This is derived from the publicly available Kepler data, using an automated search algorithm and debiasing process to produce…

Earth and Planetary Astrophysics · Physics 2015-06-19 D. J. Armstrong , H. Osborn , D. Brown , F. Faedi , Y. Gómez Maqueo Chew , D. Martin , D. Pollacco , S. Udry

The discovery of transiting circumbinary planets by the Kepler mission suggests that planets can form efficiently around binary stars. None of the stellar binaries currently known to host planets has a period shorter than 7 days, despite…

Earth and Planetary Astrophysics · Physics 2015-09-16 Diego J. Muñoz , Dong Lai

We present a quintuple star system that contains two eclipsing binaries. The unusual architecture includes two stellar images separated by 11" on the sky: EPIC 212651213 and EPIC 212651234. The more easterly image (212651213) actually hosts…

Eclipsing brown dwarfs are important calibrators of sub-stellar evolution models used to infer the characteristics of directly imaged brown dwarfs and giant exoplanets. Only two double brown dwarf eclipsing binary systems are known, among…

Solar and Stellar Astrophysics · Physics 2025-11-03 Seb T. Millward , Vedad Kunovac

We report on the discovery and validation of a transiting long-period mini-Neptune orbiting a bright (V = 9.0 mag) G dwarf (TOI 4633; R = 1.05 RSun, M = 1.10 MSun). The planet was identified in data from the Transiting Exoplanet Survey…

Transiting circumbinary planets (CBPs) are conspicuously rare, and entirely absent around stellar binaries with periods $\leq 7$ days. Here, we exploit a secular resonance to stimulate the orbit of a CBP into strong, disruptive interactions…

Earth and Planetary Astrophysics · Physics 2025-12-04 Mohammad Farhat , Jihad Touma

Precise space-based photometry from the Transiting Exoplanet Survey Satellite results in a huge number of exoplanetary candidates. However, the masses of these objects are unknown and must be determined by ground-based spectroscopic…

Transits on single stars are rare. The probability rarely exceeds a few per cent. Furthermore, this probability rapidly approaches zero at increasing orbital period. Therefore transit surveys have been predominantly limited to the inner…

Earth and Planetary Astrophysics · Physics 2015-06-23 David V. Martin , Amaury H. M. J. Triaud

IGR J16493-4348 is an eclipsing supergiant high-mass X-ray binary (sgHMXB), where accretion onto the compact object occurs via the radially outflowing stellar wind of its early B-type companion. We present an analysis of the system's X-ray…

High Energy Astrophysical Phenomena · Physics 2019-03-20 Aaron B. Pearlman , Joel B. Coley , Robin H. D. Corbet , Katja Pottschmidt
‹ Prev 1 8 9 10 Next ›