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相关论文: Eclipsing binaries in the open cluster Ruprecht 14…

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We report follow-up spectroscopic observations of the 1.62 day, K-type, detached, active, near-circular, double-lined eclipsing binary EPIC 219511354 in the open cluster Ruprecht 147, identified previously on the basis of photometric…

太阳与恒星天体物理 · 物理学 2021-11-17 Guillermo Torres , Andrew Vanderburg , Jason L. Curtis , Adam L. Kraus , Eric Gaidos

We report our spectroscopic monitoring of the detached, grazing, and slightly eccentric 12-day double-lined eclipsing binary EPIC 219568666 in the old nearby open cluster Ruprecht 147. This is the second eclipsing system to be analyzed in…

Eclipsing binaries in star clusters offer more stringent tests of stellar evolution theory than field binaries because models must not only match the binary properties, but also the radiative properties of all other cluster members at a…

太阳与恒星天体物理 · 物理学 2018-10-24 Guillermo Torres , Jason L. Curtis , Andrew Vanderburg , Adam L. Kraus , Aaron Rizzuto

We present an extensive set of photometry and radial velocities for the detached eclipsing binary KV 29 in the intermediate-aged open cluster M11 (NGC 6705). Spectroscopy shows that the system is double-lined and all available evidence…

太阳与恒星天体物理 · 物理学 2016-08-19 Ernest A. Bavarsad , Eric L. Sandquist , Matthew D. Shetrone , Jerome A. Orosz

We present photodynamical models of four eclipsing binary systems that are members of higher-order multiple systems. We provide some radial velocities measurements and use recent TESS data for three of the systems. KIC 7668648 consists of…

太阳与恒星天体物理 · 物理学 2023-12-12 Jerome A. Orosz

We analyze extensive BVRI photometry and radial velocity measurements for three double-lined deeply-eclipsing binary stars in the field of the old open cluster NGC 7142. The short period (P = 1.9096825 d) detached binary V375 Cep is a high…

太阳与恒星天体物理 · 物理学 2015-06-16 Eric L. Sandquist , Matthew Shetrone , Andrew W. Serio , Jerome Orosz

Using Campaign 15 data from the K2 mission, we have discovered a triply-eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 days, with shallow $\sim$3% eclipses. During the entire 80-day…

We present a new analysis of the multiple star V1200 Centauri based on the most recent observations for this system. We used the photometric observations from the Solaris network and the TESS telescope, combined with the new radial…

太阳与恒星天体物理 · 物理学 2020-10-07 F. Marcadon , K. G. Hełminiak , J. P. Marques , R. Pawłaszek , P. Sybilski , S. K. Kozłowski , M. Ratajczak , M. Konacki

We report the discovery of three low-mass double-lined eclipsing binaries in the pre-main sequence Upper Scorpius association, revealed by $K2$ photometric monitoring of the region over $\sim$ 78 days. The orbital periods of all three…

太阳与恒星天体物理 · 物理学 2016-01-13 Trevor J. David , Lynne A. Hillenbrand , Ann Marie Cody , John M. Carpenter , Andrew W. Howard

Many of the Kepler close binaries are suggested to constitute hierarchical triple systems through their eclipse timing variations (ETVs). Eclipses by the third body in those systems, if observed, provide precise constraints on its physical…

太阳与恒星天体物理 · 物理学 2015-09-25 Kento Masuda , Sho Uehara , Hajime Kawahara

We have discovered a new, near-equal mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of 3 field age ($>$ 1 Gyr), late M dwarf eclipsing binaries known, and has a period of 1.74774 days,…

We report the discovery of a new detached eclipsing binary known as NSVS01031772 with component masses M_1= 0.5428 +/- 0.0027Msun, M_2= 0.4982 +/- 0.0025Msun, and radii R_1= 0.5260 +/- 0.0028Rsun, R_2= 0.5088 +/- 0.0030Rsun. The system has…

KIC 7177553 was observed by the Kepler satellite to be an eclipsing eccentric binary star system with an 18-day orbital period. Recently, an eclipse timing study of the Kepler binaries has revealed eclipse timing variations in this object…

太阳与恒星天体物理 · 物理学 2016-03-16 H. Lehmann , T. Borkovits , S. A. Rappaport , H. Ngo , D. Mawet , Sz. Csizmadia , E. Forgacs-Dajka

KIC 8560861 (HD 183648) is a marginally eccentric (e=0.05) eclipsing binary with an orbital period of P_orb=31.973d, exhibiting mmag amplitude pulsations on time scales of a few days. We present the results of the complex analysis of high…

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…

太阳与恒星天体物理 · 物理学 2020-10-14 T. Mitnyan , T. Borkovits , S. A. Rappaport , A. Pál , P. F. L. Maxted

We report the discovery and characterization of an eclipsing M5V dwarf star, orbiting a slightly evolved F7V main sequence star. In contrast to previous claims in the literature, we confirm that the system does not belong to the galactic…

We present the results from a complex study of an eclipsing O-type binary (Aa+Ab) with the orbital period $P_{A}=3.2254367$ days, that forms part of a higher-order multiple system in a configuration (A+B)+C. We derived masses of the Aa+Ab…

太阳与恒星天体物理 · 物理学 2024-04-05 Mónica Taormina , R. -P. Kudritzki , B. Pilecki , G. Pietrzyński , I. B. Thompson , J. Puls , M. Górski , B. Zgirski , D. Graczyk , W. Gieren , G. Hajdu

We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, Pout, of only 24.5 days. This "eclipses" the previous record set by lambda Tauri at 33.02 days, which held for 68 yr. The inner…

We report the discovery of EPIC 219388192 b, a transiting brown dwarf in a 5.3-day orbit around a member star of Ruprecht-147, the oldest nearby open cluster association, which was photometrically monitored by K2 during its Campaign 7. We…

The nearby (50 pc) K7V dwarf HIP~41431 (EPIC 212096658) is a compact 3-tier hierarchy. Three K7V stars with similar masses, from 0.61 to 0.63 solar, make a triple-lined spectroscopic system where the inner binary with a period of 2.9 days…

太阳与恒星天体物理 · 物理学 2019-06-12 T. Borkovits , J. Sperauskas , A. Tokovinin , D. W. Latham , I. Csányi , T. Hajdu , L. Molnár
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