Search Results - "Dupree, A"
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A Dusty Veil Shading Betelgeuse During Its Great Dimming
Published in Nature (London) (17-06-2021)“…Red supergiants are the most common final evolutionary stage of stars that have initial masses between 8 and 35 times that of the Sun. During this stage, which…”
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Spatially Resolved Observations of Betelgeuse at λ7 mm and λ1.3 cm Just prior to the Great Dimming
Published in The Astrophysical journal (01-08-2022)“…We present spatially resolved observations of Betelgeuse ( α Orionis) obtained with the Karl G. Jansky Very Large Array at λ ∼ 7 mm (44 GHz) and λ ∼ 1.3 cm (22…”
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The loudest stellar heartbeat: characterizing the most extreme amplitude heartbeat star system
Published in Monthly notices of the Royal Astronomical Society (01-09-2021)“…ABSTRACT We characterize the extreme heartbeat star system MACHO 80.7443.1718 in the Large Magellanic Cloud using Transiting Exoplanet Survey Satellite (TESS)…”
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Direct Evidence for an Enhancement of Helium in Giant Stars in Omega Centauri
Published in The Astrophysical journal (20-02-2011)“…The double main sequence identified in the globular cluster Omega Centauri has been interpreted using isochrones to indicate a large variation in the abundance…”
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Intraoperative Ventilation of Morbidly Obese Patients Guided by Transpulmonary Pressure
Published in Obesity surgery (2018)“…Background Bariatric surgery has proven a successful approach in the treatment of morbid obesity and its concomitant diseases such as diabetes mellitus and…”
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Kepler's Optical Phase Curve of the Exoplanet HAT-P-7b
Published in Science (American Association for the Advancement of Science) (07-08-2009)“…Ten days of photometric data were obtained during the commissioning phase of the Kepler mission, including data for the previously known giant transiting…”
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A Deep Chandra X-Ray Spectrum of the Accreting Young Star TW Hydrae
Published in The Astrophysical journal (20-02-2010)“…We present X-ray spectral analysis of the accreting young star TW Hydrae from a 489 ks observation using the Chandra High Energy Transmission Grating. The…”
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THE 10830 HELIUM LINE AMONG EVOLVED STARS IN THE GLOBULAR CLUSTER M4
Published in The Astrophysical journal (01-08-2015)“…ABSTRACT Helium is a pivotal element in understanding the multiple main sequences and extended horizontal branches observed in some globular clusters. Here we…”
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An Intermediate Luminosity Transient in NGC 300: The Eruption of a Dust-Enshrouded Massive Star
Published in The Astrophysical journal (10-07-2009)“…We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity…”
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The coronal structure of AB Doradus determined from contemporaneous Doppler imaging and X-ray spectroscopy
Published in Monthly notices of the Royal Astronomical Society (01-06-2007)“…We obtain contemporaneous observations of the surface and corona of AB Doradus (AB Dor), a young single cool star, using ground-based circularly polarized…”
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The Galaxy Hosts and Large-Scale Environments of Short-Hard Gamma-Ray Bursts
Published in The Astrophysical journal (10-05-2006)“…The rapid succession of discoveries of short-duration hard-spectrum gamma-ray bursts (GRBs) has led to unprecedented insights into the energetics of the…”
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He I λ10830 as a Probe of Winds in Accreting Young Stars
Published in The Astrophysical journal (10-12-2003)Get full text
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STRUCTURE AND DYNAMICS OF THE ACCRETION PROCESS AND WIND IN TW Hya
Published in The Astrophysical journal (01-07-2014)“…Time-domain spectroscopy of the classical accreting T Tauri star, TW Hya, covering a decade and spanning the far UV to the near-infrared spectral regions can…”
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A Hot Wind from the Classical T Tauri Stars: TW Hydrae and T Tauri
Published in The Astrophysical journal (01-06-2005)“…Spectroscopy of the infrared He I (10830 AA) line with NIRSPEC on Keck and CSHELL at the IRTF, and of the ultraviolet C III (977 AA) and O VI (1032 AA)…”
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Spitzer spectra of evolved stars in ω Centauri and their low-metallicity dust production
Published in Monthly notices of the Royal Astronomical Society (01-10-2011)“…Dust production is explored around 14 metal-poor ([Fe/H]=−1.91 to −0.98) giant stars in the Galactic globular cluster ω Centauri using new Spitzer Infrared…”
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Discovery of long-period variable stars in the very metal-poor globular cluster M15
Published in Monthly notices of the Royal Astronomical Society (01-07-2010)“…We present a search for long-period variable (LPV) stars among giant branch stars in M15 which, at [Fe/H]∼−2.3, is one of the most metal-poor Galactic globular…”
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Tissue engineered bone: Measurement of nutrient transport in three-dimensional matrices
Published in Journal of biomedical materials research. Part A (01-10-2003)“…The classic paradigm for in vitro tissue engineering of bone involves the isolation and culture of donor osteoblasts or osteoprogenitor cells within…”
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Modified Reversed Frozen Elephant Trunk for Thoracoabdominal Aortic Repair in a Pig Model
Published in European journal of vascular and endovascular surgery (01-09-2016)Get full text
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Chandra study of the eclipsing M dwarf binary, YY Gem
Published in Monthly notices of the Royal Astronomical Society (01-06-2012)“…The eclipsing M dwarf binary system, YY Gem, was observed using Chandra covering 140 ks (2P rot) in total, split into two even exposures separated by 0.76 d…”
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