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19962026
most citedThe Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

2.5k citations

Showing 2012 · astro-ph.SRShow all

35 papers · 2 filters

astro-ph.SR2012★ 29 cited

Characterizing two solar-type Kepler subgiants with asteroseismology: KIC10920273 and KIC11395018

G. Dogan, T. S. Metcalfe, S. Deheuvels +27

Determining fundamental properties of stars through stellar modeling has improved substantially due to recent advances in asteroseismology. Thanks to the unprecedented data quality…

astro-ph.SR2012★ 17 cited

Low-frequency variations of unknown origin in the Kepler Delta Scuti star KIC 5988140 = HD 188774

P. Lampens, A. Tkachenko, H. Lehmann +9

We used high-quality Kepler photometry and spectroscopic data to investigate the Kepler binary candidate KIC 5988140. Using the spectrum synthesis method, we derived the fundamenta…

astro-ph.SR2012★ 9 cited

SDSS 1355+0856: A detached white dwarf + M star binary in the period gap discovered by the SWARMS survey

Carles Badenes, Marten H. van Kerkwijk, Mukremin Kilic +5

SDSS 1355+0856 was identified as a hot white dwarf (WD) with a binary companion from time-resolved SDSS spectroscopy as part of the ongoing SWARMS survey. Follow-up observations wi…

astro-ph.SR2012★ 105 cited

Photometrically derived masses and radii of the planet and star in the TrES-2 system

Thomas Barclay, Daniel Huber, Jason F. Rowe +16

We measure the mass and radius of the star and planet in the TrES-2 system using 2.7 years of observations by the Kepler spacecraft. The light curve shows evidence for ellipsoidal…

astro-ph.SR2012★ 260 cited

Fundamental Properties of Stars using Asteroseismology from Kepler & CoRoT and Interferometry from the CHARA Array

D. Huber, M. J. Ireland, T. R. Bedding +37

We present results of a long-baseline interferometry campaign using the PAVO beam combiner at the CHARA Array to measure the angular sizes of five main-sequence stars, one subgiant…

astro-ph.SR2012★ 38 cited

Relationship between low and high frequencies in Delta Scuti stars: Photometric Kepler and spectroscopic analyses of the rapid rotator KIC 8054146

M. Breger, L. Fossati, L. Balona +9

Two years of Kepler data of KIC 8054146 (delta Sct/gamma Dor hybrid) revealed 349 statistically significant frequencies between 0.54 and 191.36 c/d (6.3 microHz to 2.21 mHz). The 1…

astro-ph.SR2012★ 463 cited

Spin down of the core rotation in red giants

B. Mosser, M. J. Goupil, K. Belkacem +18

The space mission Kepler provides us with long and uninterrupted photometric time series of red giants. We are now able to probe the rotational behaviour in their deep interiors us…

astro-ph.SR2012★ 170 cited

Verifying asteroseismically determined parameters of Kepler stars using hipparcos parallaxes: self-consistent stellar properties and distances

V. Silva Aguirre, L. Casagrande, S. Basu +24

Accurately determining the properties of stars is of prime importance for characterizing stellar populations in our Galaxy. The field of asteroseismology has been thought to be par…

astro-ph.SR2012★ 378 cited

Kepler-47: A Transiting Circumbinary Multi-Planet System

Jerome A. Orosz, William F. Welsh, Joshua A. Carter +36

We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that o…

astro-ph.SR2012★ 44 cited

Nonlinear asteroseismology of RR Lyrae

L. Molnár, Z. Kolláth, R. Szabó +4

The observations of the Kepler space telescope revealed that fundamental-mode RR Lyrae stars may show various radial overtones. The presence of multiple radial modes may allow us t…

astro-ph.SR2012★ 201 cited

The Neptune-Sized Circumbinary Planet Kepler-38b

Jerome A. Orosz, William F. Welsh, Joshua A. Carter +28

We discuss the discovery and characterization of the circumbinary planet Kepler-38b. The stellar binary is single-lined, with a period of 18.8 days, and consists of a moderately ev…

astro-ph.SR2012★ 98 cited

Calibrating Convective properties of Solar-like Stars in the Kepler Field of View

Ana Bonaca, Joel D. Tanner, Sarbani Basu +24

Stellar models generally use simple parametrizations to treat convection. The most widely used parametrization is the so-called "Mixing Length Theory" where the convective eddy siz…

astro-ph.SR2012★ 56 cited

Solar-like oscillations in red giants observed with \textit{Kepler}: influence of increased timespan on global oscillation parameters

S. Hekker, Y. Elsworth, B. Mosser +8

The length of the asteroseismic timeseries obtained from the Kepler satellite analysed here span 19 months. Kepler provides the longest continuous timeseries currently available, w…

astro-ph.SR2012★ 70 cited

Three ways to solve the orbit of KIC11558725: a 10 day beaming sdB+WD binary with a pulsating subdwarf

J. H. Telting, R. H. Østensen, A. S. Baran +16

The recently discovered subdwarf B (sdB) pulsator KIC11558725 features a rich g-mode frequency spectrum, with a few low-amplitude p-modes at short periods, and is a promising targe…

astro-ph.SR2012★ 72 cited

A pulsation zoo in the hot subdwarf B star KIC 10139564 observed by Kepler

A. S. Baran, M. D. Reed, D. Stello +13

We present our analyses of 15 months of Kepler data on KIC 10139564. We detected 57 periodicities with a variety of properties not previously observed all together in one pulsating…

astro-ph.SR2012★ 402 cited

Seismic evidence for a rapidly rotating core in a lower-giant-branch star observed with Kepler

S. Deheuvels, R. A. Garcia, W. J. Chaplin +24

Rotation is expected to have an important influence on the structure and the evolution of stars. However, the mechanisms of angular momentum transport in stars remain theoretically…

astro-ph.SR2012★ 11 cited

Discovery of a TiO emission band in the infrared spectrum of the S star NP Aurigae

K. Smolders, T. Verhoelst, P. Neyskens +10

We report on the discovery of an infrared emission band in the Spitzer spectrum of the S-type AGB star NP Aurigae that is caused by TiO molecules in the circumstellar environment.…

astro-ph.SR2012★ 85 cited

Atmospheric parameters of 82 red giants in the Kepler field

A. O. Thygesen, S. Frandsen, H. Bruntt +10

Context: Accurate fundamental parameters of stars are essential for the asteroseismic analysis of data from the NASA Kepler mission. Aims: We aim at determining accurate atmospheri…

astro-ph.SR2012★ 164 cited

Oscillation mode frequencies of 61 main sequence and subgiant stars observed by Kepler

T. Appourchaux, W. J. Chaplin, R. A. Garcia +25

Solar-like oscillations have been observed by Kepler and CoRoT in several solar-type stars, thereby providing a way to probe the stars using asteroseismology. We provide the mode f…

astro-ph.SR2012★ 67 cited

The complex case of V445 Lyr observed with Kepler: Two Blazhko modulations, a non-radial mode, possible triple mode RR Lyrae pulsation, and more

E. Guggenberger, K. Kolenberg, J. M. Nemec +13

Rapid and strong changes in the Blazhko modulation of RR Lyrae stars, as they have recently been detected in high precision satellite data, have become a crucial topic in finding a…

astro-ph.SR2012★ 21 cited

Detection of gravity modes in the massive binary V380 Cyg from Kepler spacebased photometry and high-resolution spectroscopy

A. Tkachenko, C. Aerts, K. Pavlovski +17

We report the discovery of low-amplitude gravity-mode oscillations in the massive binary star V380 Cyg, from 180 d of Kepler custom-aperture space photometry and 5 months of high-r…

astro-ph.SR2012★ 52 cited

Solving the mode identification problem in asteroseismology of F stars observed with Kepler

Timothy R. White, Timothy R. Bedding, Michael Gruberbauer +14

Asteroseismology of F-type stars has been hindered by an ambiguity in identification of their oscillation modes. The regular mode pattern that makes this task trivial in cooler sta…

astro-ph.SR2012★ 28 cited

Orbital properties of an unusually low-mass sdB star in a close binary system with a white dwarf

R. Silvotti, R. H. Østensen, S. Bloemen +17

We have used 605 days of photometric data from the Kepler spacecraft to study KIC 6614501, a close binary system with an orbital period of 0.15749747(25) days (3.779939 hours), tha…

astro-ph.SR2012★ 41 cited

Empirical Determination of Convection Parameters in White Dwarfs I : Whole Earth Telescope Observations of EC14012-1446

J. L. Provencal, M. H. Montgomery, A. Kanaan +55

We report on analysis of 308.3 hrs of high speed photometry targeting the pulsating DA white dwarf EC14012-1446. The data were acquired with the Whole Earth Telescope (WET) during…