Search Results - "Mengel, M. W"

THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844 by Wittenmyer, Robert A., Johnson, John Asher, Butler, R. P., Horner, Jonathan, Wang, Liang, Robertson, Paul, Jones, M. I., Jenkins, J. S., Brahm, R., Tinney, C. G., Mengel, M. W., Clark, J.

“…ABSTRACT We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets…”
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The magnetic fields and stellar winds of the mature late F-stars: β Virginis and θ Draconis by Seach, J M, Marsden, S C, Carter, B D, Evensberget, D, Folsom, C P, Neiner, C, Mengel, M W

“…ABSTRACT Mapping the large-scale magnetic field in late F-type stars is important for understanding the nature of the stellar dynamo and the dynamics of thin…”
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Linking chromospheric activity and magnetic field properties for late-type dwarf stars by Brown, E L, Jeffers, S V, Marsden, S C, Morin, J, Boro Saikia, S, Petit, P, Jardine, M M, See, V, Vidotto, A A, Mengel, M W, Dahlkemper, M N, the BCool Collaboration

“…ABSTRACT Spectropolarimetric data allow for simultaneous monitoring of stellar chromospheric $\log {R^{\prime }_{\rm {HK}}}$ activity and the surface-averaged…”
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Planets around young active solar-type stars: assessing detection capabilities from a non-stabilized spectrograph by Heitzmann, A, Marsden, S C, Petit, P, Mengel, M W, Wright, D, Clerte, M, Millburn, I, Folsom, C P, Addison, B C, Wittenmyer, R A, Waite, I A

“…ABSTRACT Short-orbit gas giant planet formation/evolution mechanisms are still not well understood. One promising pathway to discriminate between mechanisms is…”
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Stability analysis of three exoplanet systems by Marshall, J P, Horner, J, Wittenmyer, R A, Clark, J T, Mengel, M W

“…ABSTRACT The orbital solutions of published multiplanet systems are not necessarily dynamically stable on time-scales comparable to the lifetime of the system…”
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Evolution of brightness and magnetic features of young solar-type stars – I. The young G star HIP 89829 by Perugini, G M, Marsden, S C, Waite, I A, Jeffers, S V, Piskunov, N, Shaw, N, Burton, D M, Mengel, M W, Hughes, J E, Hébrard, E M

“…ABSTRACT The evolution in latitude of sunspots is a key feature of the cyclic solar dynamo. Here, we present the results of a spectroscopic and…”
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A magnetic snapshot survey of F-type stars by Seach, J M, Marsden, S C, Carter, B D, Neiner, C, Folsom, C P, Mengel, M W, Oksala, M E, Buysschaert, B

“…ABSTRACT We present a spectropolarimetric magnetic snapshot survey of 55 stars which includes 53 F-type stars ranging from spectral types F0 to F9 plus 2…”
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Two mini-Neptunes transiting the adolescent K-star HIP 113103 confirmed with TESS and CHEOPS by Lowson, N, Zhou, G, Huang, C X, Wright, D J, Edwards, B, Nabbie, E, Venner, A, Quinn, S N, Collins, K A, Gillen, E, Battley, M, Triaud, A, Hellier, C, Seager, S, Winn, J N, Jenkins, J M, Wohler, B, Shporer, A, Schwarz, R P, Murgas, F, Pallé, E, Anderson, D R, West, R G, Wittenmyer, R A, Bowler, B P, Horner, J, Kane, S R, Kielkopf, J, Plavchan, P, Zhang, H, Fairnington, T, Okumura, J, Mengel, M W, Addison, B C

“…ABSTRACT We report the discovery of two mini-Neptunes in near 2:1 resonance orbits (P = 7.610303 d for HIP 113103 b and P  = 14.245651 d for HIP 113103 c)…”
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A sub-Neptune transiting the young field star HD 18599  at 40 pc by de Leon, J P, Livingston, J H, Jenkins, J S, Vines, J I, Wittenmyer, R A, Clark, J T, Winn, J I M, Addison, B, Ballard, S, Bayliss, D, Beichman, C, Benneke, B, Berardo, D A, Bowler, B P, Brown, T, Bryant, E M, Christiansen, J, Ciardi, D, Collins, K A, Collins, K I, Crossfield, I, Deming, D, Dragomir, D, Dressing, C D, Fukui, A, Gan, T, Giacalone, S, Gill, S, Gorjian, V, González Alvarez, E, Hesse, K, Horner, J, Howell, S B, Jenkins, J M, Kane, S R, Kendall, A, Kielkopf, J F, Kreidberg, L, Latham, D W, Liu, H, Lund, M B, Matson, R, Matthews, E, Mengel, M W, Morales, F, Mori, M, Narita, N, Nishiumi, T, Okumura, J, Plavchan, P, Quinn, S, Rabus, M, Ricker, G, Rudat, A, Schlieder, J, Schwarz, R P, Seager, S, Shporer, A, Smith, A M S, Stassun, K, Tamura, M, Tan, T G, Tinney, C, Vanderspek, R, Werner, M W, West, R G, Wright, D, Zhang, H, Zhou, G

“…ABSTRACT Transiting exoplanets orbiting young nearby stars are ideal laboratories for testing theories of planet formation and evolution. However, to date only…”
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A BCool survey of the magnetic fields of planet-hosting solar-type stars by Mengel, M W, Marsden, S C, Carter, B D, Horner, J, King, R, Fares, R, Jeffers, S V, Petit, P, Vidotto, A A, Morin, J

“…We present a spectropolarimetric snapshot survey of solar-type planet-hosting stars. In addition to 14 planet-hosting stars observed as part of the BCool…”
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A Radio and Optical Study of the Active Young F Star HR 1817 (=HD 35850) by Budding, E., Carter, B. D., Mengel, M. W., Slee, O. B., Donati, J.-F.

“…This paper presents the results of a multiwavelength observational study of the active young F-type star HR 1817. The star was monitored at 4.80 and 8.64 GHz…”
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The evolving magnetic topology of τ Boötis by Mengel, M. W., Fares, R., Marsden, S. C., Carter, B. D., Jeffers, S. V., Petit, P., Donati, J.-F., Folsom, C. P.

“…We present six epochs of spectropolarimetric observations of the hot-Jupiter-hosting star τ Boötis that extend the exceptional previous multiyear data set of…”
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Stability analysis of three exoplanet systems by Marshall, J. P, Horner, J, Wittenmyer, R. A, Clark, J. T, Mengel, M. W

“…The orbital solutions of published multi-planet systems are not necessarily dynamically stable on timescales comparable to the lifetime of the system as a…”
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Linking chromospheric activity and magnetic field properties for late-type dwarf stars by Brown, E. L, Jeffers, S. V, Marsden, S. C, Morin, J, Saikia, S. Boro, Petit, P, Jardine, M. M, See, V, Vidotto, A. A, Mengel, M. W, Dahlkemper, M. N, Collaboration, the BCool

“…Spectropolarimetric data allow for simultaneous monitoring of stellar chromospheric $\log{R^{\prime}_{\rm{HK}}}$ activity and the surface-averaged longitudinal…”
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Magnetic field and chromospheric activity evolution of HD75332: a rapid magnetic cycle in an F star without a hot Jupiter by Brown, E. L, Marsden, S. C, Mengel, M. W, Jeffers, S. V, Millburn, I, Mittag, M, Petit, P, Vidotto, A. A, Morin, J, See, V, Jardine, M, González-Pérez, J. N, Collaboration, the BCool

“…Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as allowing us to…”
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Magnetic field and chromospheric activity evolution of HD75332: a rapid magnetic cycle in an F star without a hot Jupiter by Brown, E. L., Marsden, S. C., Mengel, M. W., Jeffers, S. V., Millburn, I., Mittag, M., Petit, P., Vidotto, A. A., Morin, Julien, See, V., Jardine, M., González-Pérez, J. N.

“…Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as allowing us to…”
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Re-analysing the dynamical stability of the HD 47366 planetary system by Marshall, J. P, Wittenmyer, R. A, Horner, J, Clark, J, Mengel, M. W, Hinse, T. C, Agnew, M. T, Kane, S. R

“…Multi-planet systems around evolved stars are of interest to trace the evolution of planetary systems into the post-main sequence phase. HD 47366, an evolved…”
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Magnetic field and chromospheric activity evolution of HD 75332: a rapid magnetic cycle in an F star without a hot Jupiter by Brown, E L, Marsden, S C, Mengel, M W, Jeffers, S V, Millburn, I, Mittag, M, Petit, P, Vidotto, A A, Morin, J, See, V, Jardine, M, González-Pérez, J N

“…ABSTRACT Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as…”
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The Anglo-Australian Planet Search XXV: A Candidate Massive Saturn Analog Orbiting HD 30177 by Wittenmyer, Robert A, Horner, Jonathan, Mengel, M. W, Butler, R. P, Wright, D. J, Tinney, C. G, Carter, B. D, Jones, H. R. A, Anglada-Escude, G, Bailey, J, O'Toole, Simon J

“…We report the discovery of a second long-period giant planet orbiting HD 30177, a star previously known to host a massive Jupiter analog (HD 30177b:…”
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A BCool survey of the magnetic fields of planet-hosting solar-type stars by Mengel, M. W, Marsden, S. C, Carter, B. D, Horner, J, King, R, Fares, R, Jeffers, S. V, Petit, P, Vidotto, A. A, Morin, J, Collaboration, the BCool

“…We present a spectropolarimetric snapshot survey of solar-type planet hosting stars. In addition to 14 planet-hosting stars observed as part of the BCool…”
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