Search Results - "SCHMITT, J. H. M. M"

TRANSIT OBSERVATIONS OF THE HOT JUPITER HD 189733b AT X-RAY WAVELENGTHS by POPPENHAEGER, K, SCHMITT, J H M M, Wolk, S J

“…We present new X-ray observations obtained with Chandra ACIS-S of the HD 189733 system, consisting of a K-type star orbited by a transiting Hot Jupiter and an…”
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A Correlation Between Host Star Activity and Planet Mass for Close-in Extrasolar Planets? by Poppenhaeger, K, Schmitt, J. H. M. M

“…The activity levels of stars are influenced by several stellar properties, such as stellar rotation, spectral type, and the presence of stellar companions…”
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Atmospheric mass-loss of extrasolar planets orbiting magnetically active host stars by Lalitha, Sairam, Schmitt, J H M M, Dash, Spandan

“…Abstract Magnetic stellar activity of exoplanet hosts can lead to the production of large amounts of high-energy emission, which irradiates extrasolar planets,…”
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Magnetic activity and evolution of the four Hyades K giants by Schröder, K-P, Mittag, M, Jack, D, Rodríguez Jiménez, A, Schmitt, J H M M

“…ABSTRACT We determine the exact physical parameters of the four Hyades cluster K giants, using their parallaxes and atmospheric modelling of our red-channel…”
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SOFT CORONAL X-RAYS FROM β PICTORIS by GÜNTHER, H. M, WOLK, S. J, DRAKE, J. J, LISSE, C. M, ROBRADE, J, SCHMITT, J. H. M. M

“…A-type stars are expected to be X-ray dark, yet weak emission has been detected from several objects in this class. We present new Chandra/HRC-I observations…”
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The relation between stellar magnetic field geometry and chromospheric activity cycles – II The rapid 120-day magnetic cycle of τ Bootis by Jeffers, S V, Mengel, M, Moutou, C, Marsden, S C, Barnes, J R, Jardine, M M, Petit, P, Schmitt, J H M M, See, V, Vidotto, A A, BCool collaboration

“…One of the aims of the BCool programme is to search for cycles in other stars and to understand how similar they are to the Sun. In this paper, we aim to…”
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Prominence detection and chromosphere feature on the prototype RS CVn of active binary systems by Cao, Dongtao, Gu, Shenghong, Wolter, U, Mittag, M, Schmitt, J H M M, Gao, Dongyang, Hu, Shaoming

“…ABSTRACT We present a study of high-resolution spectra of RS Canum Venaticorum (RS CVn), a prototype of active binary systems. Our data were obtained from 1998…”
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The study on transiting systems HAT-P-13, HAT-P-16, and WASP-32 through combining ground-based and TESS photometry by Sun, L, Gu, S, Wang, X, Bai, L, Schmitt, J H M M, Perdelwitz, V, Ioannidis, P

“…ABSTRACT High-precision transit photometry supplies ideal opportunities for detecting new exoplanets and characterizing their physical properties, which…”
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An ingress and a complete transit of HD 80606 b by Hidas, M. G., Tsapras, Y., Mislis, D., Ramaprakash, A. N., Barros, S. C. C., Street, R. A., Schmitt, J. H. M. M., Steele, I., Pollacco, D., Ayiomamitis, A., Antoniadis, J., Nitsos, A., Seiradakis, J. H., Urakawa, S.

“…We have used four telescopes at different longitudes to obtain near-continuous light-curve coverage of the star HD 80606 as it was transited by its ∼4-MJup…”
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ROSAT Detection of an X-ray Shadow in the 1/4-keV Diffuse Background in the Draco Nebula by Snowden, S. L., Mebold, U., Hirth, W., Herbstmeier, U., J. H. M. M. Schmitt

“…The detection by the Roentgen satellite (ROSAT) x-ray telescope of a shadow in the 1/4-kiloelectron volt (C band, 0.1 to 0.284 kiloelectron volt) cosmic…”
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First Light Measurements of Capella with the Low-Energy Transmission Grating Spectrometer aboard the Chandra X-Ray Observatory by Brinkman, A. C, Gunsing, C. J. T, Kaastra, J. S, van der Meer, R. L. J, Mewe, R, Paerels, F, Raassen, A. J. J, van Rooijen, J. J, Bräuninger, H, Burkert, W, Burwitz, V, Hartner, G, Predehl, P, Ness, J.-U, Schmitt, J. H. M. M, Drake, J. J, Johnson, O, Juda, M, Kashyap, V, Murray, S. S, Pease, D, Ratzlaff, P, Wargelin, B. J

“…We present the first X-ray spectrum obtained by the Low-Energy Transmission Grating Spectrometer (LETGS) aboard the Chandra X-Ray Observatory. The spectrum is…”
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X-ray survey of the Large Magellanic Cloud by ROSAT by Trümper, J, Hasinger, G, Aschenbach, B, Bräuninger, H, Briel, U. G, Burkert, W, Fink, H, Pfeffermann, E, Pietsch, W, Predehl, P, Schmitt, J. H. M. M, Voges, W, Zimmermann, U, Beuermann, K

“…An x-ray survey of the central region of the Large Magellanic Cloud reveals 45 individual astrophysical objects, 15 of which are new discoveries. The brightest…”
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The corona of GJ 1151 in the context of star–planet interaction by Foster, G, Poppenhaeger, K, Alvarado-Gómez, J D, Schmitt, J H M M

“…ABSTRACT The low-mass star GJ 1151 has been reported to display variable low-frequency radio emission, which has been interpreted as a signpost of coronal…”
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Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium by Cao, Dongtao, Gu, Shenghong, Ge, Jian, Wang, Tinggui, Zhou, Jilin, Chang, Liang, Wolter, U, Mittag, M, Schmitt, J H M M, Perdelwitz, V

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Proxima Centauri – the nearest planet host observed simultaneously with AstroSat, Chandra, and HST by Lalitha, S, Schmitt, J H M M, Singh, K P, Schneider, P C, Parke Loyd, R O, France, K, Predehl, P, Burwitz, V, Robrade, J

“…ABSTRACT Our nearest stellar neighbour, Proxima Centauri, is a low-mass star with spectral type dM5.5 and hosting an Earth-like planet orbiting within its…”
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A highly mutually inclined compact warm-Jupiter system KOI-984? by Sun, L, Ioannidis, P, Gu, S, Schmitt, J H M M, Wang, X, Kouwenhoven, M B N, Perdelwitz, V, Flammini Dotti, F, Czesla, S

“…ABSTRACT The discovery of a population of close-orbiting giant planets (≤ 1 au) has raised a number of questions about their origins and dynamical histories…”
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The first Doppler imaging of the active binary prototype RS Canum Venaticorum by Xiang, Yue, Gu, Shenghong, Wolter, U, Schmitt, J H M M, Cameron, A Collier, Barnes, J R, Mittag, M, Perdelwitz, V, Kohl, S

“…ABSTRACT We present the first Doppler images of the prototypical active binary star RS Canum Venaticorum, derived from high-resolution spectra observed in…”
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An X-ray emission-line spectrum of Nova V382 Velorum 1999 by Ness, J.-U., Starrfield, S., Jordan, C., Krautter, J., Schmitt, J. H. M. M.

“…We report on the analysis of an X-ray grating spectrum of the Classical Nova V382 Vel (1999), obtained with the Low Energy Transmission Grating (LETG)+HRC-S…”
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TIGRE: A new robotic spectroscopy telescope at Guanajuato, Mexico by Schmitt, J. H. M. M., Schröder, K.-P., Rauw, G., Hempelmann, A., Mittag, M., González-Pérez, J. N., Czesla, S., Wolter, U., Jack, D., Eenens, P., Trinidad, M. A.

“…TIGRE is a new robotic spectroscopy telescope located in central Mexico at the La Luz Observatory of the University of Guanajuato. The 1.2 m telescope is…”
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Continuous heating of a giant X-ray flare on Algol by Schmitt, J. H. M. M, Favata, F

“…Giant stellar flares can release large amounts of energy within a few days: X-ray emission alone can be up to ten per cent of the star's bolometric luminosity…”
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