Now showing items 1-20 of 68

  • The abundance and thermal history of water ice in the disk surrounding HD 142527 from the DIGIT Herschel Key Program 

    Min, M.; Bouwman, J.; Dominik, C.; Waters, L. B. F. M.; Pontoppidan, K. M.; Hony, S.; Mulders, G. D.; Henning, Th.; van Dishoeck, E. F.; Woitke, P.; Evans II, Neal J.; The DIGIT Team (2016-09-01) - Journal article
    Context. The presence or absence of ice in protoplanetary disks is of great importance to the formation of planets. By enhancing solid surface density and increasing sticking efficiency, ice catalyzes the rapid formation ...
  • Accretion disc time lag distributions : applying CREAM to simulated AGN light curves 

    Starkey, David; Horne, Keith; Villforth, C. (2016-02-21) - Journal article
    Active galactic nuclei (AGN) vary in their brightness across all wavelengths. Moreover, longer wavelength ultraviolet-optical continuum light curves appear to be delayed with respect to shorter wavelength light curves. A ...
  • The Astrobiology Primer v2.0 

    Domagal-Goldman, Shawn D.; Wright, Katherine E.; Adamala, Katarzyna; De La Rubia, Leigh Arina; Bond, Jade; Dartnell, Lewis R.; Goldman, Aaron D.; Lynch, Kennda; Naud, Marie Eve; Paulino-Lima, Ivan G.; Singer, Kelsi; Walter-Antonio, Marina; Abrevaya, Ximena C.; Anderson, Rika; Arney, Giada; Atri, Dimitra; Azuá-Bustos, Armando; Bowman, Jeff S.; Brazelton, William J.; Brennecka, Gregory A.; Carns, Regina; Chopra, Aditya; Colangelo-Lillis, Jesse; Crockett, Christopher J.; De Marines, Julia; Frank, Elizabeth A.; Frantz, Carie; De La Fuente, Eduardo; Galante, Douglas; Glass, Jennifer; Gleeson, Damhnait; Glein, Christopher R.; Goldblatt, Colin; Horak, Rachel; Horodyskyj, Lev; Kaçar, Betül; Kereszturi, Akos; Knowles, Emily; Mayeur, Paul; McGlynn, Shawn; Miguel, Yamila; Montgomery, Michelle; Neish, Catherine; Noack, Lena; Rugheimer, Sarah; Stüeken, Eva E.; Tamez-Hidalgo, Paulina; Walker, Sara Imari; Wong, Teresa (2016-08-01) - Journal article
  • Bombs and flares at the surface and lower atmosphere of the Sun 

    Hansteen, V. H.; Archontis, V.; Pereira, T. M. D.; Carlsson, M.; Rouppe van der Voort, L.; Leenaarts, J. (2017-04-10) - Journal article
    A spectacular manifestation of solar activity is the appearance of transient brightenings in the far wings of the Hα line, known as Ellerman bombs (EBs). Recent observations obtained by the Interface Region Imaging ...
  • Clustering of quasars in the first year of the SDSS-IV eBOSS survey : Interpretation and halo occupation distribution 

    Rodríguez-Torres, Sergio A.; Comparat, Johan; Prada, Francisco; Yepes, Gustavo; Burtin, Etienne; Zarrouk, Pauline; Laurent, Pierre; Hahn, ChangHoon; Behroozi, Peter; Klypin, Anatoly; Ross, Ashley; Tojeiro, Rita; Zhao, Gong-Bo (2017-06-11) - Journal article
    In current and future surveys, quasars play a key role. The new data will extend our knowledge of the Universe as it will be used to better constrain the cosmological model at redshift z > 1 via baryon acoustic oscillation ...
  • A comparison of global magnetic field skeletons and active-region upflows 

    Edwards, S. J.; Parnell, C. E.; Harra, L. K.; Culhane, J. L.; Brooks, D. H. (2016-01-01) - Journal article
    Plasma upflows have been detected in active regions using Doppler velocity maps. The origin and nature of these upflows is not well known with many of their characteristics determined from the examination of single events. ...
  • A complex solar coronal jet with two phases 

    Chen, Jie; Su, Jiangtao; Deng, Yuanyong; Priest, E. R. (2017-05-04) - Journal article
    Jets often occur repeatedly from almost the same location. In this paper, a complex solar jet was observed with two phases to the west of NOAA AR 11513 on 2012 July 2. If it had been observed at only moderate resolution, ...
  • Consistent dust and gas models for protoplanetary disks : II. Chemical networks and rates 

    Kamp, I.; Thi, W. F.; Woitke, P.; Rab, C.; Bouma, S.; Ménard, F. (2017-11-06) - Journal article
    Aims.  We aim to define a small and large chemical network which can be used for the quantitative simultaneous analysis of molecular emission from the near-IR to the submm. We also aim to revise reactions of excited molecular ...
  • The continuing story of SN IIb 2013df: new optical and IR observations and analysis 

    Szalai, Tamás; Vinkó, József; Nagy, Andrea P.; Silverman, Jeffrey M.; Wheeler, J. Craig; Dhungana, Govinda; Marion, G. Howie; Kehoe, Robert; Fox, Ori D.; Sárneczky, Krisztián; Marschalkó, Gábor; Bíró, Barna I.; Borkovits, Tamás; Hegedüs, Tibor; Szakáts, Róbert; Ferrante, Farley V.; Bányai, Evelin; Hodosán, Gabriella; Kelemen, János; Pál, András (2016-08-01) - Journal article
    SN 2013df is a nearby Type IIb supernova that seems to be the spectroscopic twin of the well-known SN 1993J. Previous studies revealed many, but not all interesting properties of this event. Our goal was to add new ...
  • The correlation between halo mass and stellar mass for the most massive galaxies in the universe 

    Tinker, Jeremy L.; Brownstein, Joel R.; Guo, Hong; Leauthaud, Alexie; Maraston, Claudia; Masters, Karen; Montero-Dorta, Antonio D.; Thomas, Daniel; Tojeiro, Rita; Weiner, Benjamin; Zehavi, Idit; Olmstead, Matthew D. (2017-04-20) - Journal article
    We present measurements of the clustering of galaxies as a function of their stellar mass in the Baryon Oscillation Spectroscopic Survey. We compare the clustering of samples using 12 different methods for estimating stellar ...
  • Coupled measurements of δ18O and δD of hydration water and salinity of fluid inclusions in gypsum from the Messinian Yesares Member, Sorbas Basin (SE Spain) 

    Evans, Nicholas P.; Turchyn, Alexandra V.; Gazquez Sanchez, Fernando; Bontognali, Tomaso R.R.; Chapman, Hazel J.; Hodell, David A. (2015-11-15) - Journal article
    We studied one cycle (Cycle 6) of gypsum-marl deposition from the Messinian Yesares Member in Sorbas Basin, Spain. The objective was to reconstruct the changing environment of deposition and its relation to astronomically-forced ...
  • Dependence of GAMA galaxy halo masses on the cosmic web environment from 100 deg2 of KiDS weak lensing data 

    Brouwer, Margot M.; Cacciato, Marcello; Dvornik, Andrej; Eardley, Lizzie; Heymans, Catherine; Hoekstra, Henk; Kuijken, Konrad; McNaught-Roberts, Tamsyn; Sifón, Cristóbal; Viola, Massimo; Alpaslan, Mehmet; Bilicki, Maciej; Bland-Hawthorn, Joss; Brough, Sarah; Choi, Ami; Driver, Simon P.; Erben, Thomas; Grado, Aniello; Hildebrandt, Hendrik; Holwerda, Benne W.; Hopkins, Andrew M.; de Jong, Jelte T. A.; Liske, Jochen; McFarland, John; Nakajima, Reiko; Napolitano, Nicola R.; Norberg, Peder; Peacock, John A.; Radovich, Mario; Robotham, Aaron S. G.; Schneider, Peter; Sikkema, Gert; van Uitert, Edo; Kleijn, Gijs Verdoes; Valentijn, Edwin A. (2016-11-11) - Journal article
    Galaxies and their dark matter haloes are part of a complex network of mass structures, collectively called the cosmic web. Using the tidal tensor prescription these structures can be classified into four cosmic environments: ...
  • Dynamic mineral clouds on HD 189733b. II. Monte Carlo radiative transfer for 3D cloudy exoplanet atmospheres : combining scattering and emission spectra 

    Lee, G. K. H.; Wood, K.; Dobbs-Dixon, I.; Rice, A.; Helling, Ch. (2017-05-01) - Journal article
    Context. As the 3D spatial properties of exoplanet atmospheres are being observed in increasing detail by current and new generations of telescopes, the modelling of the 3D scattering effects of cloud forming atmospheres ...
  • Dynamical history of the Local Group in ΛCDM 

    Banik, Indranil; Zhao, Hongsheng (2016-06-21) - Journal article
    The positions and velocities of galaxies in the Local Group (LG) measure the gravitational field within it. This is mostly due to the Milky Way (MW) and Andromeda (M31). We constrain their masses using distance and radial ...
  • The EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limit 

    Von Boetticher, Alexander; Triaud, Amaury H.M.J.; Queloz, DIdier; Gill, Sam; Lendl, Monika; Delrez, Laetitia; Anderson, David R.; Cameron, Andrew Collier; Faedi, Francesca; Gillon, Michaël; Chew, Yilen Gómez Maqueo; Hebb, Leslie; Hellier, Coel; Jehin, Emmanuël; Maxted, Pierre F.L.; Martin, David V.; Pepe, Francesco; Pollacco, Don; Ségransan, Damien; Smalley, Barry; Udry, Stéphane; West, Richard (2017-08-01) - Journal article
    We report the discovery of an eclipsing binary system with mass-ratio q ∼ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light ...
  • Elongation of flare ribbons 

    Qiu, Jiong; Longcope, Dana W.; Cassak, Paul A.; Priest, Eric R. (2017-03-20) - Journal article
    We present an analysis of the apparent elongation motion of flare ribbons along the polarity inversion line (PIL), as well as the shear of flare loops in several two-ribbon flares. Flare ribbons and loops spread along the ...
  • EPIC 201702477b : a transiting brown dwarf from K2 in a 41 day orbit 

    Bayliss, D.; Hojjatpanah, S.; Santerne, A.; Dragomir, D.; Zhou, G.; Shporer, A.; Colón, K. D.; Almenara, J.; Armstrong, D. J.; Barrado, D.; Barros, S. C. C.; Bento, J.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Brown, T.; Cameron, A.; Cochran, W. D.; Demangeon, O.; Deleuil, M.; Díaz, R. F.; Fulton, B.; Horne, K.; Hébrard, G.; Lillo-Box, J.; Lovis, C.; Mawet, D.; Ngo, H.; Osborn, H.; Palle, E.; Petigura, E.; Pollacco, D.; Santos, N.; Sefako, R.; Siverd, R.; Sousa, S. G.; Tsantaki, M. (2016-12-20) - Journal article
    We report the discovery of EPIC 201702477b, a transiting brown dwarf in a long period (40.73691 ± 0.00037 day) and eccentric (e = 0.2281 ± 0.0026) orbit. This system was initially reported as a planetary candidate based ...
  • The eruption of a small-scale emerging flux rope as the driver of an M-class flare and of a coronal mass ejection 

    Yan, X. L.; Jiang, C. W.; Xue, Z. K.; Wang, J. C.; Priest, E. R.; Yang, L. H.; Kong, D. F.; Cao, W. D.; Ji, H. S. (2017-08-10) - Journal article
    Solar flares and coronal mass ejections are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain ...
  • Evaluating galactic habitability using high-resolution cosmological simulations of galaxy formation 

    Forgan, Duncan; Dayal, Pratika; Cockell, Charles; Libeskind, Noam (2017-01) - Journal article
    We present the first model that couples high-resolution simulations of the formation of local group galaxies with calculations of the galactic habitable zone (GHZ), a region of space which has sufficient metallicity to ...
  • Exomoon climate models with the carbonate-silicate cycle and viscoelastic tidal heating 

    Forgan, Duncan; Dobos, Vera (2016-04-01) - Journal article
    The habitable zone for exomoons with Earth-like properties is a non-trivialmanifold, compared to that of Earth-like exoplanets. The presence of tidal heating, eclipses and planetary illumination in the exomoon energy budget ...