Search Results - "Sturmann, L."
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THE AGES OF A-STARS. I. INTERFEROMETRIC OBSERVATIONS AND AGE ESTIMATES FOR STARS IN THE URSA MAJOR MOVING GROUP
Published in The Astrophysical journal (01-11-2015)“…ABSTRACT We have observed and spatially resolved a set of seven A-type stars in the nearby Ursa Major moving group with the Classic, CLIMB, and PAVO beam…”
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The expanding fireball of Nova Delphini 2013
Published in Nature (London) (13-11-2014)“…High spatial resolution is needed to study the early development of a nova; here measurements of the angular size and radial velocity of Nova Delphini 2013…”
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Imaging the Surface of Altair
Published in Science (American Association for the Advancement of Science) (20-07-2007)“…Spatially resolving the surfaces of nearby stars promises to advance our knowledge of stellar physics. Using optical long-baseline interferometry, we…”
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No Sun-like dynamo on the active star ζ Andromedae from starspot asymmetry
Published in Nature (London) (12-05-2016)“…Infrared interferometry imaging of the old, magnetically active star ζ Andromedae reveals an asymmetric distribution of starspots, unlike the north–south…”
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FUNDAMENTAL PROPERTIES OF STARS USING ASTEROSEISMOLOGY FROM KEPLER AND CoRoT AND INTERFEROMETRY FROM THE CHARA ARRAY
Published in The Astrophysical journal (20-11-2012)“…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…”
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Colder and Hotter: Interferometric Imaging of β Cassiopeiae and α Leonis
Published in The Astrophysical journal (10-05-2011)Get full text
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Interferometric Imaging of λ Andromedae: Evidence of Starspots and Rotation
Published in The Astrophysical journal (01-05-2021)“…Abstract Presented are the first interferometric images of cool starspots on the chromospherically active giant λ Andromedae. Using the Michigan Infra-Red…”
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First Results from the CHARA Array. II. A Description of the Instrument
Published in The Astrophysical journal (20-07-2005)“…The CHARA Array is a six 1 m telescope optical/IR interferometric array located on Mount Wilson, California, designed and built by the Center for High Angular…”
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Imaging and Modeling Rapidly Rotating Stars: α Cephei and α Ophiuchi
Published in The Astrophysical journal (10-08-2009)Get full text
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Orbital Elements and Stellar Parameters of the Active Binary UX Arietis
Published in The Astrophysical journal (01-08-2017)“…Stellar activity observed as large surface spots, radio flares, or emission lines is often found in binary systems. UX Arietis exhibits these signs of…”
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A Tale of Two Herbig Ae Stars, MWC 275 and AB Aurigae: Comprehensive Models for Spectral Energy Distribution and Interferometry
Published in The Astrophysical journal (10-12-2008)“…We present comprehensive models for the Herbig Ae stars MWC 275 and AB Aur that aim to explain their spectral energy distribution (from UV to millimeter) and…”
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CHARA/MIRC OBSERVATIONS OF TWO M SUPERGIANTS IN PERSEUS OB1: TEMPERATURE, BAYESIAN MODELING, AND COMPRESSED SENSING IMAGING
Published in The Astrophysical journal (10-04-2014)“…Two red supergiants (RSGs) of the Per OB 1 association, RS Per and T Per, have been observed in the H band using the Michigan Infra-Red Combiner (MIRC)…”
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AB Dor Moving Group Stars Resolved with the CHARA Array
Published in The Astrophysical journal (10-05-2018)“…We present interferometric measurements obtained with the CHARA Array of 13 adolescent-age stars in nearby moving groups. The motivation was to spatially…”
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First Results from the CHARA Array. IV. The Interferometric Radii of Low-Mass Stars
Published in The Astrophysical journal (10-06-2006)“…We have measured the angular diameters of six M dwarfs with the CHARA Array, a long-baseline optical interferometer located at Mount Wilson Observatory…”
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Strong Near-Infrared Emission Interior to the Dust Sublimation Radius of Young Stellar Objects MWC 275 and AB Aurigae
Published in The Astrophysical journal (10-04-2008)“…Using the longest optical-interferometeric baselines currently available, we have detected strong near-infrared (NIR) emission from inside the dust destruction…”
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HD 181068: A Red Giant in a Triply Eclipsing Compact Hierarchical Triple System
Published in Science (American Association for the Advancement of Science) (08-04-2011)“…Hierarchical triple systems comprise a close binary and a more distant component. They are important for testing theories of star formation and of stellar…”
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IMAGING THE ALGOL TRIPLE SYSTEM IN THE H BAND WITH THE CHARA INTERFEROMETER
Published in The Astrophysical journal (10-06-2012)“…Algol ( beta Per) is an extensively studied hierarchical triple system whose inner pair is a prototype semi-detached binary with mass transfer occurring from…”
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A CHARA ARRAY SURVEY OF CIRCUMSTELLAR DISKS AROUND NEARBY Be-TYPE STARS
Published in The Astrophysical journal (10-05-2013)“…We report on a high angular resolution survey of circumstellar disks around 24 northern sky Be stars. The K-band continuum survey was made using the CHARA…”
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Dust in the inner regions of debris disks around a stars
Published in The Astrophysical journal (01-02-2009)“…We present infrared interferometric observations of the inner regions of two A-star debris disks, beta Leo and direct sum Lep, using the FLUOR instrument at…”
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First Results from the CHARA Array. VII. Long-Baseline Interferometric Measurements of Vega Consistent with a Pole-On, Rapidly Rotating Star
Published in The Astrophysical journal (01-07-2006)“…We have obtained high-precision interferometric measurements of Vega with the CHARA Array and FLUOR beam combiner in the K' band at projected baselines between…”
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