Search Results - "Gaidos, E."

What and whence 1I/‘Oumuamua: a contact binary from the debris of a young planetary system? by Gaidos, E

“…Abstract The first confirmed interstellar interloper in our Solar system, 1I/‘Oumuamua, is likely to be a minor body ejected from another star, but its brief…”
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A minimum mass nebula for M dwarfs by Gaidos, E.

“…Abstract Recently revealed differences in planets around M dwarf versus solar-type stars could arise from differences in their primordial discs and surveys of…”
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They are small worlds after all: revised properties of Kepler M dwarf stars and their planets by Gaidos, E., Mann, A. W., Kraus, A. L., Ireland, M.

“…We classified the reddest (r − J > 2.2) stars observed by the NASA Kepler mission into main-sequence dwarf or evolved giant stars and determined the properties…”
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YOUNG "DIPPER" STARS IN UPPER SCO AND OPH OBSERVED BY K2 by Ansdell, M., Gaidos, E., Rappaport, S. A., Jacobs, T. L., LaCourse, D. M., Jek, K. J., Mann, A. W., Wyatt, M. C., Kennedy, G., Williams, J. P., Boyajian, T. S.

“…ABSTRACT We present ten young ( 10 Myr) late-K and M dwarf stars observed in K2 Campaign 2 that host protoplanetary disks and exhibit quasi-periodic or…”
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Monitoring of the D doublet of neutral sodium during transits of two ‘evaporating’ planets by Gaidos, E, Hirano, T, Ansdell, M

“…ABSTRACT Spectroscopic transit detection of constituents in winds from ‘evaporating’ planets on close-in transiting orbits could provide desperately needed…”
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Trumpeting M dwarfs with CONCH-SHELL: a catalogue of nearby cool host-stars for habitable exoplanets and life by Gaidos, E., Mann, A. W., Lépine, S., Buccino, A., James, D., Ansdell, M., Petrucci, R., Mauas, P., Hilton, E. J.

“…We present an all-sky catalogue of 2970 nearby (d ≲ 50 pc), bright (J < 9) M- or late K-type dwarf stars, 86 per cent of which have been confirmed by…”
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Zodiacal exoplanets in time – X. The orbit and atmosphere of the young ‘neptune desert’-dwelling planet K2-100b by Gaidos, E, Hirano, T, Mann, A W, Owens, D A, Berger, T A, France, K, Vanderburg, A, Harakawa, H, Hodapp, K W, Ishizuka, M, Jacobson, S, Konishi, M, Kotani, T, Kudo, T, Kurokawa, T, Kuzuhara, M, Nishikawa, J, Omiya, M, Serizawa, T, Tamura, M, Ueda, A

“…ABSTRACT We obtained high-resolution infrared spectroscopy and short-cadence photometry of the 600–800 Myr Praesepe star K2-100 during transits of its 1.67-d…”
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Are inner disc misalignments common? ALMA reveals an isotropic outer disc inclination distribution for young dipper stars by Ansdell, M, Gaidos, E, Hedges, C, Tazzari, M, Kraus, A L, Wyatt, M C, Kennedy, G M, Williams, J P, Mann, A W, Angelo, I, Dûchene, G, Mamajek, E E, Carpenter, J, Esplin, T L, Rizzuto, A C

“…ABSTRACT Dippers are a common class of young variable star exhibiting day-long dimmings with depths of up to several tens of per cent. A standard explanation…”
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Zodiacal exoplanets in time – XI. The orbit and radiation environment of the young M dwarf-hosted planet K2-25b by Gaidos, E, Hirano, T, Wilson, D J, France, K, Rockcliffe, K, Newton, E, Feiden, G, Krishnamurthy, V, Harakawa, H, Hodapp, K W, Ishizuka, M, Jacobson, S, Konishi, M, Kotani, T, Kudo, T, Kurokawa, T, Kuzuhara, M, Nishikawa, J, Omiya, M, Serizawa, T, Tamura, M, Ueda, A, Vievard, S

“…ABSTRACT M dwarf stars are high-priority targets for searches for Earth-size and potentially Earth-like planets, but their planetary systems may form and…”
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Estimating the atmospheric properties of 44 M dwarfs from SPIRou spectra by Cristofari, P I, Donati, J-F, Masseron, T, Fouqué, P, Moutou, C, Carmona, A, Artigau, E, Martioli, E, Hébrard, G, Gaidos, E, Delfosse, X

“…ABSTRACT We describe advances on a method designed to derive accurate parameters of M dwarfs. Our analysis consists in comparing high-resolution infrared…”
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The little dippers: transits of star-grazing exocomets? by Ansdell, M, Gaidos, E, Jacobs, T L, Mann, A, Manara, C F, Kennedy, G M, Vanderburg, A, Kenworthy, M, Hirano, T, LaCourse, D M, Hedges, C, Frasca, A

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The ASAS-SN catalogue of variable stars – VIII. ‘Dipper’ stars in the Lupus star-forming region by Bredall, J W, Shappee, B J, Gaidos, E, Jayasinghe, T, Vallely, P, Stanek, K Z, Kochanek, C S, Gagné, J, Hart, K, Holoien, T W-S, Prieto, J L, Van Saders, J

“…ABSTRACT Some young stellar objects such as T Tauri-like ‘dipper’ stars vary due to transient partial occultation by circumstellar dust, and observations of…”
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Estimating fundamental parameters of nearby M dwarfs from SPIRou spectra by Cristofari, P I, Donati, J-F, Masseron, T, Fouqué, P, Moutou, C, Delfosse, X, Artigau, E, Folsom, C P, Carmona, A, Gaidos, E, do Nascimento, J-D, Jahandar, F, Hébrard, G

“…ABSTRACT We present the results of a study aiming at retrieving the fundamental parameters of M dwarfs from spectra secured with SPIRou, the near-infrared…”
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The magnetic field and multiple planets of the young dwarf AU Mic by Donati, J-F, Cristofari, P I, Finociety, B, Klein, B, Moutou, C, Gaidos, E, Cadieux, C, Artigau, E, Correia, A C M, Boué, G, Cook, N J, Carmona, A, Lehmann, L T, Bouvier, J, Martioli, E, Morin, J, Fouqué, P, Delfosse, X, Doyon, R, Hébrard, G, Alencar, S H P, Laskar, J, Arnold, L, Petit, P, Kóspál, Á, Vidotto, A, Folsom, C P, collaboration, the S L S

“…ABSTRACT In this paper, we present an analysis of near-infrared spectropolarimetric and velocimetric data of the young M dwarf AU Mic, collected with SPIRou at…”
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Zodiacal exoplanets in time (ZEIT) – II. A ‘super-Earth’ orbiting a young K dwarf in the Pleiades Neighbourhood by Gaidos, E, Mann, A W, Rizzuto, A, Nofi, L, Mace, G, Vanderburg, A, Feiden, G, Narita, N, Takeda, Y, Esposito, T M, De Rosa, R J, Ansdell, M, Hirano, T, Graham, J R, Kraus, A, Jaffe, D

“…We describe a 'super-Earth'-size (2.30 ± 0.16 R^sub ⊕^) planet transiting an early K-type dwarf star in the Campaign 4 field observed by the K2 mission. The…”
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Après Nous, le Déluge: A Human‐Triggered Jökulhlaup From a Subglacial Lake by Gaidos, E., Jóhannesson, T., Einarsson, B., Thorsteinsson, Th, Amend, J. P., Skidmore, M.

“…Glacial floods (jökulhlaups) are a phenomenon of some temperate ice masses; they are a significant natural hazard, but their complex hydrology is incompletely…”
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Heterogeneous distribution of 26Al at the birth of the solar system: Evidence from refractory grains and inclusions by KROT, A. N., MAKIDE, K., NAGASHIMA, K., HUSS, G. R., OGLIORE, R. C., CIESLA, F. J., YANG, L., HELLEBRAND, E., GAIDOS, E.

“…– We review recent results on O‐ and Mg‐isotope compositions of refractory grains (corundum, hibonite) and calcium, aluminum‐rich inclusions (CAIs) from…”
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A SELF-CONSISTENT MODEL OF THE CIRCUMSTELLAR DEBRIS CREATED BY A GIANT HYPERVELOCITY IMPACT IN THE HD 172555 SYSTEM by JOHNSON, B. C, LISSE, C. M, MORLOK, A, CHEN, C. H, MELOSH, H. J, WYATT, M. C, THEBAULT, P, HENNING, W. G, GAIDOS, E, ELKINS-TANTON, L. T, BRIDCES, J. C

“…Spectral modeling of the large infrared excess in the Spitzer IRS spectra of HD 172555 suggests that there is more than 10 super(19) kg of submicron dust in…”
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Zodiacal exoplanets in time (ZEIT) XII: a directly imaged planetary-mass companion to a young Taurus M dwarf star by Gaidos, E, Hirano, T, Kraus, A L, Kuzuhara, M, Zhang, Z, Lee, R A, Salama, M, Berger, T A, Grunblatt, S K, Ansdell, M, Liu, M C, Harakawa, H, Hodapp, K W, Jacobson, S, Konishi, M, Kotani, T, Kudo, T, Kurokawa, T, Nishikawa, J, Omiya, M, Serizawa, T, Tamura, M, Ueda, A, Vievard, S

“…ABSTRACT We report the discovery of a resolved (0.9 arcsec) substellar companion to a member of the 1–5 Myr Taurus star-forming region. The host star (2M0437)…”
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Planetesimals around stars with TESS (PAST) – I. Transient dimming of a binary solar analogue at the end of the planet accretion era by Gaidos, E, Jacobs, T, LaCourse, D, Vanderburg, A, Rappaport, S, Berger, T, Pearce, L, Mann, A W, Weiss, L, Fulton, B, Behmard, A, Howard, A W, Ansdell, M, Ricker, G R, Vanderspek, R K, Latham, D W, Seager, S, Winn, J N, Jenkins, J M

“…ABSTRACT We report detection of quasi-periodic (1.5-d) dimming of HD 240779, the solar-mass primary in a 5 arcsec visual binary (also TIC 284730577), by the…”
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