Browsing University of Hertfordshire by Author "Miller, N."

Now showing items 1-7 of 7

    • Discovery and atmospheric characterization of giant planet Kepler-12b : An inflated radius outlier 

      Fortney, J.J.; Nutzman, P.; Miller, N.; Demory, B.-O.; Seager, S.; Désert, J.-M.; Buchhave, L.A.; Charbonneau, D.; Fressin, F.; Latham, D.W.; Geary, J.C.; Rowe, J.; Caldwell, D.A.; Jenkins, J.M.; Christiansen, J.L.; Marcy, G.W.; Isaacson, H.; Howard, A.; Knutson, H.A.; Buchhave, L.A.; Ciardi, D.; Gautier, T.N.; Batalha, N.M.; Bryson, S.T.; Howell, S.B.; Borucki, W.J.; Koch, D.; Lissauer, J.J.; Haas, M.R.; Everett, M.; Deming, D.; Brown, T.M.; Ford, E.B.; Gilliland, R.L.; Fischer, D.A.; Still, M.; Lucas, P.W.; Gillon, M. (2011-11-01)
      We report the discovery of planet Kepler-12b (KOI-20), which at 1.695 ± 0.030 R is among the handful of planets with super-inflated radii above 1.65 R. Orbiting its slightly evolved G0 host with a 4.438 day period, this ...

    • Kepler-18b, c, and d : A system of three planets confirmed by transit timing variations, light curve validation, Warm-Spitzer photometry, and radial velocity measurements 

      Cochran, W.D.; MacQueen, P.J.; Endl, M.; Fabrycky, D.C.; Fortney, J.J.; Miller, N.; Torres, G.; Fressin, F.; Désert, J.-M.; Ragozzine, D.; Sasselov, D.; Carter, J.A.; Quinn, S.N.; Latham, D.W.; Holman, M.J.; Charbonneau, D.; Rowe, J.F.; Bryson, S.T.; Howell, S.B.; Borucki, W.J.; Koch, D.G.; Uddin, K.; Tenenbaum, P.; Still, M.; Mullally, F.; Lissauer, J.J.; Kinemuchi, K.; Jenkins, J.M.; Henze, C.E.; Haas, M.R.; Caldwell, D.; Brugamyer, E.J.; Ciardi, D.R.; Steffen, J.H.; Winn, J.N.; Seager, S.; Demory, B.-O.; Welsh, W.F.; Uddin, K.; Tenenbaum, P.; Mullally, F.; Jenkins, J.M.; Caldwell, D.; Still, M.; Kinemuchi, K.; Marcy, G.W.; Knutson, H.; Isaacson, H.; Howard, A.; Lucas, P.W.; Johnson, J.A.; Horch, E.; Gilliland, R.L.; Gautier, T.N.; Ford, E.B.; Fischer, D.A.; Everett, M.; Deming, D.; Buchhave, L.; Brown, T.M.; Batalha, N. (2011-11-01)
      We report the detection of three transiting planets around a Sun-like star, which we designate Kepler-18. The transit signals were detected in photometric data from the Kepler satellite, and were confirmed to arise from ...

    • Large amplitude periodic outbursts and long period variables in the VVV VIRAC2-$β$ database 

      Guo, Zhen; Lucas, P. W.; Smith, L. C.; Clarke, C.; Peña, C. Contreras; Bayo, A.; Briceño, C.; Elias, J.; Kurtev, R. G.; Borissova, J.; Alonso-García, J.; Minniti, D.; Catelan, M.; Nikzat, F.; Morris, C.; Miller, N. (2022-03-21)
      The VISTA Variables in the Via Lactea (VVV) survey obtained near-infrared photometry toward the Galactic bulge and the southern disc plane for a decade (2010 - 2019). We designed a modified Lomb-Scargle method to search ...

    • The most variable VVV sources: eruptive protostars, dipping giants in the Nuclear Disc and others 

      Lucas, P. W.; Smith, L. C.; Guo, Z.; Peña, C. Contreras; Minniti, D.; Miller, N.; Alonso-García, Javier; Catelan, M.; Borissova, J.; Saito, R. K.; Kurtev, R.; Navarro, M. G.; Morris, C.; Muthu, H.; Froebrich, D.; Ivanov, V. D.; Bayo, A.; Garatti, A. Caratti o; Sanders, J. L. (2024-02-01)
      We have performed a comprehensive search of a VISTA Variables in the Via Lactea (VVV) data base of 9.5 yr light curves for variable sources with ΔKs ≥ 4 mag, aiming to provide a large sample of high amplitude eruptive young ...

    • Multiwavelength detection of an ongoing FUOr-type outburst on a low-mass YSO 

      Guo, Zhen; Lucas, P. W.; Kurtev, R. G.; Borissova, J.; Elbakyan, V.; Morris, C.; Bayo, A.; Smith, L.; Garatti, A. Caratti o; Peña, C. Contreras; Minniti, D.; Jose, J.; Ashraf, M.; Alonso-García, J; Miller, N.; Muthu, H. D. S. (2024-03-01)
      During the pre-main-sequence evolution, Young Stellar Objects (YSOs) assemble most of their mass during the episodic accretion process. The rarely seen FUOr-type events are valuable laboratories to investigate the outbursting ...

    • Spectroscopic confirmation of high-amplitude eruptive YSOs and dipping giants from the VVV survey 

      Guo, Zhen; Lucas, P. W.; Kurtev, R.; Borissova, J.; Peña, C. Contreras; Yurchenko, S. N.; Smith, L. C.; Minniti, D.; Saito, R. K.; Bayo, A.; Catelan, M.; Alonso-García, Javier; Garatti, A. Caratti o; Morris, C.; Froebrich, D.; Tennyson, J.; Maucó, K.; Aguayo, A.; Miller, N.; Muthu, H. D. S. (2024-02-01)
      During the pre-main-sequence (pre-MS) evolution stage of a star, significant amounts of stellar mass are accreted during episodic accretion events, such as multidecade FUor-type outbursts. Here, we present a near-infrared ...

    • UGPS J194310+183851 : an Unusual Optical and X-ray Faint Cataclysmic Variable? 

      Morris, C.; Maccarone, T. J.; Lucas, P. W.; Strader, J.; Britt, C. T.; Miller, N.; Swihart, S. J.; Cooper, W. J.; Drew, J. E.; Guo, Z. (2022-08-01)
      The growing number of multi-epoch optical and infrared sky surveys are uncovering unprecedented numbers of new variable stars, of an increasing number of types. The short interval between observations in adjacent near-infrared ...