Search Results - "Lund, M. N"

Automated preparation of Kepler time series of planet hosts for asteroseismic analysis by Handberg, R., Lund, M. N.

“…One of the tasks of the Kepler Asteroseismic Science Operations Center (KASOC) is to provide asteroseismic analyses on Kepler Objects of Interest. However,…”
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Confirming chemical clocks: asteroseismic age dissection of the Milky Way disc(s) by Silva Aguirre, V, Bojsen-Hansen, M, Slumstrup, D, Casagrande, L, Kawata, D, Ciucă, I, Handberg, R, Lund, M N, Mosumgaard, J R, Huber, D, Johnson, J A, Pinsonneault, M H, Serenelli, A M, Stello, D, Tayar, J, Bird, J C, Cassisi, S, Hon, M, Martig, M, Nissen, P E, Rix, H W, Schönrich, R, Sahlholdt, C, Trick, W H, Yu, J

“…Abstract Investigations of the origin and evolution of the Milky Way disc have long relied on chemical and kinematic identifications of its components to…”
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Asteroseismic inference on rotation, gyrochronology and planetary system dynamics of 16 Cygni by Davies, G R, Chaplin, W J, Farr, W M, Garcia, R A, Lund, M N, Mathis, S, Metcalfe, T S, Appourchaux, T, Basu, S, Benomar, O, Campante, T L, Ceillier, T, Elsworth, Y, Handberg, R, Salabert, D, Stello, D

“…The solar analogues 16 Cyg A and B are excellent asteroseismic targets in the Kepler field of view and together with a red dwarf and a Jovian planet form an…”
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Detection of solar-like oscillations in relics of the Milky Way: asteroseismology of K giants in M4 using data from the NASA K2 mission by Miglio, A., Chaplin, W. J., Brogaard, K., Lund, M. N., Mosser, B., Davies, G. R., Handberg, R., Milone, A. P., Marino, A. F., Bossini, D., Elsworth, Y. P., Grundahl, F., Arentoft, T., Bedin, L. R., Campante, T. L., Jessen-Hansen, J., Jones, C. D., Kuszlewicz, J. S., Malavolta, L., Nascimbeni, V., Sandquist, E. L.

“…Asteroseismic constraints on K giants make it possible to infer radii, masses and ages of tens of thousands of field stars. Tests against independent estimates…”
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Establishing the accuracy of asteroseismic mass and radius estimates of giant stars – I. Three eclipsing systems at [Fe/H] ∼ −0.3 and the need for a large high-precision sample by Brogaard, K, Hansen, C J, Miglio, A, Slumstrup, D, Frandsen, S, Jessen-Hansen, J, Lund, M N, Bossini, D, Thygesen, A, Davies,  G R, Chaplin, W J, Arentoft, T, Bruntt, H, Grundahl, F, Handberg, R

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Ages and fundamental properties of Kepler exoplanet host stars from asteroseismology by Silva Aguirre, V., Davies, G. R., Basu, S., Christensen-Dalsgaard, J., Creevey, O., Metcalfe, T. S., Bedding, T. R., Casagrande, L., Handberg, R., Lund, M. N., Nissen, P. E., Chaplin, W. J., Huber, D., Serenelli, A. M., Stello, D., Van Eylen, V., Campante, T. L., Elsworth, Y., Gilliland, R. L., Hekker, S., Karoff, C., Kawaler, S. D., Kjeldsen, H., Lundkvist, M. S.

“…We present a study of 33 Kepler planet-candidate host stars for which asteroseismic observations have sufficiently high signal-to-noise ratio to allow…”
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The BAyesian STellar algorithm (BASTA): a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology by Aguirre Børsen-Koch, V, Rørsted, J L, Justesen, A B, Stokholm, A, Verma, K, Winther, M L, Knudstrup, E, Nielsen, K B, Sahlholdt, C, Larsen, J R, Cassisi, S, Serenelli, A M, Casagrande, L, Christensen-Dalsgaard, J, Davies, G R, Ferguson, J W, Lund, M N, Weiss, A, White, T R

“…ABSTRACT We introduce the public version of the BAyesian STellar Algorithm (BASTA), an open-source code written in Python to determine stellar properties based…”
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Oscillation frequencies for 35 Kepler solar-type planet-hosting stars using Bayesian techniques and machine learning by Davies, G. R., Aguirre, V. Silva, Bedding, T. R., Handberg, R., Lund, M. N., Chaplin, W. J., Huber, D., White, T. R., Benomar, O., Hekker, S., Basu, S., Campante, T. L., Christensen-Dalsgaard, J., Elsworth, Y., Karoff, C., Kjeldsen, H., Lundkvist, M. S., Metcalfe, T. S., Stello, D.

“…Kepler has revolutionized our understanding of both exoplanets and their host stars. Asteroseismology is a valuable tool in the characterization of stars and…”
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Hot super-Earths stripped by their host stars by Lundkvist, M. S., Kjeldsen, H., Albrecht, S., Davies, G. R., Basu, S., Huber, D., Justesen, A. B., Karoff, C., Silva Aguirre, V., Van Eylen, V., Vang, C., Arentoft, T., Barclay, T., Bedding, T. R., Campante, T. L., Chaplin, W. J., Christensen-Dalsgaard, J., Elsworth, Y. P., Gilliland, R. L., Handberg, R., Hekker, S., Kawaler, S. D., Lund, M. N., Metcalfe, T. S., Miglio, A., Rowe, J. F., Stello, D., Tingley, B., White, T. R.

“…Simulations predict that hot super-Earth sized exoplanets can have their envelopes stripped by photoevaporation, which would present itself as a lack of these…”
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First Results from the Hertzsprung SONG Telescope: Asteroseismology of the G5 Subgiant Star μ Herculis by Grundahl, F., Andersen, M. Fredslund, Christensen-Dalsgaard, J., Antoci, V., Kjeldsen, H., Handberg, R., Houdek, G., Bedding, T. R., Pallé, P. L., Jessen-Hansen, J., Aguirre, V. Silva, White, T. R., Frandsen, S., Albrecht, S., Andersen, M. I., Arentoft, T., Brogaard, K., Chaplin, W. J., Harpsøe, K., Jørgensen, U. G., Karovicova, I., Karoff, C., Rasmussen, P. Kjærgaard, Lund, M. N., Lundkvist, M. Sloth, Skottfelt, J., Norup Sørensen, A., Tronsgaard, R., Weiss, E.

“…Abstract We report the first asteroseismic results obtained with the Hertzsprung Stellar Observations Network Group Telescope from an extensive high-precision…”
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SPIN-ORBIT ALIGNMENT OF EXOPLANET SYSTEMS: ENSEMBLE ANALYSIS USING ASTEROSEISMOLOGY by Campante, T. L., Lund, M. N., Kuszlewicz, J. S., Davies, G. R., Chaplin, W. J., Albrecht, S., Winn, J. N., Bedding, T. R., Benomar, O., Bossini, D., Handberg, R., Santos, A. R. G., Van Eylen, V., Basu, S., Christensen-Dalsgaard, J., Elsworth, Y. P., Hekker, S., Hirano, T., Huber, D., Karoff, C., Kjeldsen, H., Lundkvist, M. S., North, T. S. H., Silva Aguirre, V., Stello, D., White, T. R.

“…ABSTRACT The angle between a planet's orbital axis and the spin axis of its parent star is an important diagnostic of planet formation, migration, and tidal…”
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Damping rates and frequency corrections of Kepler LEGACY stars by Houdek, G, Lund, M N, Trampedach, R, Christensen-Dalsgaard, J, Handberg, R, Appourchaux, T

“…ABSTRACT Linear damping rates and modal frequency corrections of radial oscillation modes in selected LEGACY main-sequence stars are estimated by means of a…”
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The K2 Galactic Caps Project – going beyond the Kepler field and ageing the Galactic disc by Rendle, B M, Miglio, A, Chiappini, C, Valentini, M, Davies, G R, Mosser, B, Elsworth, Y, García, R A, Mathur, S, Jofré, P, Worley, C C, Casagrande, L, Girardi, L, Lund, M N, Feuillet, D K, Gavel, A, Magrini, L, Khan, S, Rodrigues, T S, Johnson, J A, Cunha, K, Lane, R L, Nitschelm, C, Chaplin, W J

“…ABSTRACT Analyses of data from spectroscopic and astrometric surveys have led to conflicting results concerning the vertical characteristics of the Milky Way…”
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Establishing the accuracy of asteroseismic mass and radius estimates of giant stars – II. Revised stellar masses and radii for KIC 8430105 by Thomsen, J S, Brogaard, K, Arentoft, T, Slumstrup, D, Lund, M N, Grundahl, F, Miglio, A, Jessen-Hansen, J, Frandsen, S

“…ABSTRACT Asteroseismic scaling relations can provide high-precision measurements of mass and radius for red giant (RG) stars displaying solar-like…”
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WHAT ASTEROSEISMOLOGY CAN DO FOR EXOPLANETS: KEPLER-410A b IS A SMALL NEPTUNE AROUND A BRIGHT STAR, IN AN ECCENTRIC ORBIT CONSISTENT WITH LOW OBLIQUITY by VAN EYLEN, V, Lund, M N, Aguirre, V Silva, Arentoft, T, Kjeldsen, H, Albrecht, S, Chaplin, W J, Isaacson, H, Pedersen, M G, Jessen-Hansen, J, Tingley, B, Christensen-Dalsgaard, J, Aerts, C, CAMPANTE, T L, Bryson, S T

“…We confirm the Kepler planet candidate Kepler-410A b (KOI-42b) as a Neptune-sized exoplanet on a 17.8 day, eccentric orbit around the bright (K sub(p) = 9.4)…”
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Extremely precise age and metallicity of the open cluster NGC 2506 using detached eclipsing binaries by Knudstrup, E, Grundahl, F, Brogaard, K, Slumstrup, D, Orosz, J A, Sandquist, E L, Jessen-Hansen, J, Lund, M N, Arentoft, T, Tronsgaard, R, Yong, D, Frandsen, S, Bruntt, H

“…ABSTRACT Accurate stellar parameters of stars in open clusters can help constrain models of stellar structure and evolution. Here, we wish to determine the age…”
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Seismic and spectroscopic analysis of nine bright red giants observed by Kepler by Coelho, H R, Miglio, A, Morel, T, Lagarde, N, Bossini, D, Chaplin, W J, Degl’Innocenti, S, Dell’Omodarme, M, Garcia, R A, Handberg, R, Hekker, S, Huber, D, Lund, M N, Mathur, S, Prada Moroni, P G, Mosser, B, Serenelli, A, Rainer, M, do Nascimento, J D, Poretti, E, Mathias, P, Valle, G, Dal Tio, P, Duarte, T

“…ABSTRACT Photometric time series gathered by space telescopes such as CoRoT and Kepler allow to detect solar-like oscillations in red giant stars and to…”
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Signatures of Magnetic Activity: On the Relation between Stellar Properties and p-mode Frequency Variations by Santos, A. R. G., Campante, T. L., Chaplin, W. J., Cunha, M. S., van Saders, J. L., Karoff, C., Metcalfe, T. S., Mathur, S., García, R. A., Lund, M. N., Kiefer, R., Aguirre, V. Silva, Davies, G. R., Howe, R., Elsworth, Y.

“…In the Sun, the properties of acoustic modes are sensitive to changes in the magnetic activity. In particular, mode frequencies are observed to increase with…”
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The host stars of Kepler's habitable exoplanets: superflares, rotation and activity by Armstrong, D. J., Pugh, C. E., Broomhall, A.-M., Brown, D. J. A., Lund, M. N., Osborn, H. P., Pollacco, D. L.

“…We embark on a detailed study of the light curves of Kepler's most Earth-like exoplanet host stars using the full length of Kepler data. We derive rotation…”
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Study of chemically peculiar stars – I. High-resolution spectroscopy and K2 photometry of Am stars in the region of M44 by Joshi, Santosh, Trust, Otto, Semenko, E, Williams, P E, Lampens, P, De Cat, P, Vermeylen, L, Holdsworth, D L, García, R A, Mathur, S, Santos, A R G, Mkrtichian, D, Goswami, A, Cuntz, M, Yadav, A P, Sarkar, M, Bhatt, B C, Kahraman Aliçavuş, F, Nhlapo, M D, Lund, M N, Goswami, P P, Savanov, I, Jorissen, A, Jurua, E, Avvakumova, E, Dmitrienko, E S, Chakradhari, N K, Das, M K, Chowdhury, S, Abedigamba, O P, Yakunin, I, Letarte, B, Karinkuzhi, D

“…ABSTRACT We present a study based on the high-resolution spectroscopy and K2 space photometry of five chemically peculiar stars in the region of the open…”
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