Search Results - "Barnes, R. J."

The origin of the excess transit absorption in the HD 189733 system: planet or star? by Barnes, J. R., Haswell, C. A., Staab, D., Anglada-Escudé, G.

“…We have detected excess absorption in the emission cores of Ca ii H&K during transits of HD 189733b for the first time. Using observations of three transits,…”
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Detection of CO absorption in the atmosphere of the hot Jupiter HD 189733b by Rodler, F., Kürster, M., Barnes, J. R.

“…With time series spectroscopic observations taken with the Near-Infrared Spectrometer (NIRSPEC) at Keck II, we investigated the atmosphere of the close…”
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RedDots: a temperate 1.5 Earth-mass planet candidate in a compact multiterrestrial planet system around GJ 1061 by Dreizler, S, Jeffers, S V, Rodríguez, E, Zechmeister, M, Barnes, J R, Haswell, C A, Coleman, G A L, Lalitha, S, Hidalgo Soto, D, Strachan, J B P, Hambsch, F-J, López-González, M J, Morales, N, Rodríguez López, C, Berdiñas, Z M, Ribas, I, Pallé, E, Reiners, A, Anglada-Escudé, G

“…ABSTRACT Small low-mass stars are favourable targets for the detection of rocky habitable planets. In particular, planetary systems in the solar neighbourhood…”
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Deriving Global Convection Maps From SuperDARN Measurements by Gjerloev, J. W., Waters, C. L., Barnes, R. J.

“…A new statistical modeling technique for determining the global ionospheric convection is described. The principal component regression (PCR)‐based technique…”
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A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887 by Jeffers, S. V., Dreizler, S., Barnes, J. R., Haswell, C. A., Nelson, R. P., Rodríguez, E., López-González, M. J., Morales, N., Luque, R., Zechmeister, M., Vogt, S. S., Jenkins, J. S., Palle, E., Berdi ñas, Z. M., Coleman, G. A. L., Díaz, M. R., Ribas, I., Jones, H. R. A., Butler, R. P., Tinney, C. G., Bailey, J., Carter, B. D., O’Toole, S., Wittenmyer, R. A., Crane, J. D., Feng, F., Shectman, S. A., Teske, J., Reiners, A., Amado, P. J., Anglada-Escudé, G.

“…A nearby multiplanet system Exoplanets can interact gravitationally with other objects orbiting the same star, affecting their evolution and stability…”
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Rotational Velocities for M Dwarfs by Jenkins, J. S, Ramsey, L. W, Jones, H. R. A, Pavlenko, Y, Gallardo, J, Barnes, J. R, Pinfield, D. J

“…We present spectroscopic rotation velocities (v sin i) for 56 M dwarf stars using high-resolution Hobby-Eberly Telescope High Resolution Spectrograph red…”
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The effect of M dwarf starspot activity on low-mass planet detection thresholds by Barnes, J. R., Jeffers, S. V., Jones, H. R. A.

“…In light of the growing interest in searching for low mass, rocky planets, we investigate the impact of starspots on radial velocity searches for earth-mass…”
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Global storm time depletion of the outer electron belt by Ukhorskiy, A. Y., Sitnov, M. I., Millan, R. M., Kress, B. T., Fennell, J. F., Claudepierre, S. G., Barnes, R. J.

“…The outer radiation belt consists of relativistic (>0.5 MeV) electrons trapped on closed trajectories around Earth where the magnetic field is nearly dipolar…”
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Recovering planet radial velocity signals in the presence of starspot activity in fully convective stars by Barnes, J R, Jeffers, S V, Anglada-Escude, G, Haswell, C A, Jones, H R A, Tuomi, M, Feng, F, Jenkins, J S, Petit, P

“…Accounting for stellar activity is a crucial component of the search for ever-smaller planets orbiting stars of all spectral types. We use Doppler imaging…”
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Multiradar observations of the polar tongue of ionization by Foster, J. C., Coster, A. J., Erickson, P. J., Holt, J. M., Lind, F. D., Rideout, W., McCready, M., van Eyken, A., Barnes, R. J., Greenwald, R. A., Rich, F. J.

“…We present a global view of large‐scale ionospheric disturbances during the main phase of a major geomagnetic storm. We find that the low‐latitude, auroral,…”
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SuperDARN Observations of Semidiurnal Tidal Variability in the MLT and the Response to Sudden Stratospheric Warming Events by Hibbins, R. E., Espy, P. J., Orsolini, Y. J., Limpasuvan, V., Barnes, R. J.

“…Using meteor wind data from the Super Dual Auroral Radar Network (SuperDARN) in the Northern Hemisphere, we (1) demonstrate that the migrating…”
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Red Optical Planet Survey: a new search for habitable earths in the southern sky by Barnes, J. R., Jenkins, J. S., Jones, H. R. A., Rojo, P., Arriagada, P., Jordán, A., Minniti, D., Tuomi, M., Jeffers, S. V., Pinfield, D.

“…We present the first results from our Red Optical Planet Survey to search for low-mass planets orbiting late-type dwarfs (M5.5V-M9V) in their habitable zones…”
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First results from the Calan–Hertfordshire Extrasolar Planet Search: exoplanets and the discovery of an eccentric brown dwarf in the desert by Jenkins, J. S., Jones, H. R. A., Goździewski, K., Migaszewski, C., Barnes, J. R., Jones, M. I., Rojo, P., Pinfield, D. J., Day-Jones, A. C., Hoyer, S.

“…We report the discovery of a brown dwarf on an eccentric orbit and with a semimajor axis that places it in the brown dwarf desert region around the star HD…”
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First observations of the temporal/spatial variation of the sub-auroral polarization stream from the SuperDARN Wallops HF radar by Oksavik, K., Greenwald, R. A., Ruohoniemi, J. M., Hairston, M. R., Paxton, L. J., Baker, J. B. H., Gjerloev, J. W., Barnes, R. J.

“…In this letter we present the first two‐dimensional observations of sub‐auroral ion drift (SAID) variability within the sub‐auroral polarization stream (SAPS)…”
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J‐band variability of M dwarfs in the WFCAM Transit Survey by Goulding, N. T., Barnes, J. R., Pinfield, D. J., Kovács, G., Birkby, J., Hodgkin, S., Catalán, S., Sipőcz, B., Jones, H. R. A., del Burgo, C., Jeffers, S. V., Nefs, S., Gálvez‐Ortiz, M.‐C., Martin, E. L.

“…ABSTRACT We present an analysis of the photometric variability of M dwarfs in the Wide Field Camera (WFCAM) Transit Survey. Although periodic light‐curve…”
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Spectroscopy and kinematics of low-mass members of young moving groups by Gálvez-Ortiz, M. C., Clarke, J. R. A., Pinfield, D. J., Jenkins, J. S., Folkes, S. L., Pérez, A. E. García, Day-Jones, A. C., Burningham, B., Jones, H. R. A., Barnes, J. R., Pokorny, R. S.

“…We study a target sample of 68 low-mass objects (with spectral types in the range M4.5–L1) previously selected via photometric and astrometric criteria, as…”
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The highly spotted photosphere of the young rapid rotator Speedy Mic by Barnes, J. R.

“…We present high-resolution images of the young rapidly rotating K3 dwarf Speedy Mic (BO Mic, HD 197890). The photospheric spot maps reveal a heavily and…”
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The Mars Pathfinder Atmospheric Structure Investigation/Meteorology (ASI/MET) Experiment by Schofield, J. T., Barnes, J. R., Crisp, D., Haberle, R. M., Larsen, S., Magalhães, J. A., Murphy, J. R., Seiff, A., Wilson, G.

“…The Mars Pathfinder atmospheric structure investigation/meteorology (ASI/MET) experiment measured the vertical density, pressure, and temperature structure of…”
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The coronal structure of Speedy Mic – II. Prominence masses and off-disc emission by Dunstone, N. J., Cameron, A. Collier, Barnes, J. R., Jardine, M.

“…Observations of stellar prominences on young rapidly rotating stars provide unique probes of their magnetic fields out to many stellar radii. We compare two…”
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Intermediate Charcot-Marie-Tooth disease due to a novel Trp101Stop myelin protein zero mutation associated with debilitating neuropathic pain by Ramirez, Juan D., Barnes, Phillip R.J., Mills, Kerry R., Bennett, David L.H.

“…Inherited neuropathies present with striking variety in their phenotype. We present a family with a myelin protein zero mutation and disabling neuropathic…”
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