Browsing Articles by Title

Browsing Articles by Title

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  • Fuller, Todd M.; West, Michael J.; Bridges, Terry J. (American Astronomical SocietyIOP Science, 1999-07-01)
    We have examined the orientations of brightest cluster galaxies (BCGs) in poor MKW (Morgan, Kayser, and White) and AWM (Albert, White, and Morgan) clusters and find that, like their counterparts in richer Abell clusters, ...

  • Recchi, S.; Calura, F.; Gibson, Brad K.; Kroupa, P. (Oxford University Press, 2014-01)
    The aim of this paper is to quantify the amplitude of the predicted plateau in [α/Fe] ratios associated with the most metal-poor stars of a galaxy. We assume that the initial mass function (IMF) in galaxies is steeper ...

  • Guenther, David B.; Demarque, P. (American Astronomical Society, 2000-03)
    Detailed models of [alpha] Centauri A and B based on the Hipparcos, Yale, and Soderhjelm parallaxes are compared. The consequences of the uncertainty in mass, luminosity, surface temperature, and composition on the structure ...

  • Lydon, Thomas Joseph; Guenther, David B.; Sofia, S. (American Astronomical SocietyIOP Publishing, 1996-01-10)
    By mimicking the effects of a magnetic field on the interior structure of a solar model, observed changes in p-mode frequencies over the course of the solar cycle are explained in terms of a change in the intensity and ...

  • Siwak, Michal; Rucinski, Slavek M.; Matthews, Jaymie M.; Kuschnig, Rainer; Guenther, David B.; Moffat, Anthony F. J.; Sasselov, Dimitar; Weiss, Werner W. (Oxford University Press, 2011-08)
    Continuous photometric observations of five young stars obtained by the MOST satellite in 2009 and 2010 in the Taurus and Lupus star formation regions are presented. Using light-curve modelling under the assumption of ...

  • Siwak, Michal; Rucinski, Slavek M.; Matthews, Jaymie M.; Pojmanski, Grzegorz; Kuschnig, Rainer; Guenther, David B.; Moffat, Anthony F. J.; Sasselov, Dimitar; Weiss, Werner W. (Wiley-Blackwell, 2011-02)
    As a continuation of our previous studies in 2007 and 2008, new photometric observations of the T Tauri star TW Hya obtained by the MOST satellite and the All Sky Automated Survey (ASAS) project over 40 d in 2009 with ...

  • Gallo, Luigi C.; Turner, David Gerald, 1945-; Majaess, Daniel J.; Lane, D. J.; Gieren, W.; Bonatto, C.; Balam, D.; Berdnikov, L. (American Astronomical SocietyIOP Publishing, 2012-07-10)
    New X-ray (XMM-Newton) and JHK[subscript s] (Observatoire du Mont-Megantic) observations for members of the star cluster Alessi 95, which Turner et al. discovered hosts the classical Cepheid SU Cas, were used in tandem ...

  • Sato, Taro; Sawicki, Marcin, 1969-; Arcila-Osejo, Liz (Oxford University PressRoyal Astronomical Society, 2014)
    We study the angular clustering of z ∼ 2 galaxies using ∼40 000 star-forming (SF) and ∼5000 passively evolving (PE) galaxies selected from ∼2.5 deg[superscript 2] of deep (K[subscript lim] = 23–24 AB) Canada–France–Hawaii ...

  • Giffin, Nick A.; Makramalla, Miller; Hendsbee, Arthur D.; Robertson, Katherine N.; Sherren, Cody; Pye, Cory C.; Masuda, Jason Douglas, 1977-; Clyburne, Jason A. C. (Royal Society of Chemistry, 2011)
    In this paper, we report a novel synthesis of anhydrous 1-hydroxy-2,2,6,6-tetramethyl-piperidine (TEMPO-H). An X-ray crystal structure and full characterization of the compound are included. Compared to hydrated TEMPO-H, ...

  • Domingo-Pardo, C.; Caballero-Folch, R.; Agramunt, J.; Algora, A.; Arcones, A.; Ameil, F.; Ayyad, Y.; Benlliure, J.; Bowry, M.; Calvino, F.; Estrade, Alfredo (IOP Publishing Limited, 2016)
    The rapid neutron nucleosynthesis process involves an enormous amount of very exotic neutron-rich nuclei, which represent a theoretical and experimental challenge. Two of the main decay properties that affect the final ...

  • Lowe, Amanda J.; Lauff, Randolph F. (Hindawi Publishing Corporation, 2012)
    Nicrophorus beetles are well known for interring small vertebrates below ground for the purpose of rearing their young. However, the arboreal use of carrion has not been previously investigated. Nest boxes were suspended ...

  • Charles, Anthony Trevor, 1956-; Mathias, Jack; Ayles, Burton; Blakney, Sherrie; Fast, Helen; Irniq, Peter (Arctic Institute of North America, 2008)
    This special issue of Arctic represents the output from a conference sponsored by the Coastal Zone Canada Association and organized in large part by Fisheries and Oceans Canada. A number of sponsors (see Acknowledgements) ...

  • Piorko, Adam; Abd-El-Aziz, Alaa S.; Lee, Choi Chuck; Sutherland, Ronald G. (Royal Society of Chemistry, 1989)
    Nucleophilic substitution of chlorine in the ironcyclopentadienyl hexafluorophosphates of chlorobenzene, isomeric chlorotoluenes and dichlorobenzenes (1 ) with the anions generated from diethyl alkylmalonates (2) and (3) ...

  • McLeod, Brenna A.; Frasier, Timothy, 1976-; Lucas, Zoe (Public Library of Science, 2014-06-12)
    Species biogeography is a result of complex events and factors associated with climate change, ecological interactions, anthropogenic impacts, physical geography, and evolution. To understand the contemporary biogeography ...

  • Guenther, David B.; Kallinger, T.; Zwintz, K.; Weiss, W. W.; Kuschnig, R.; Casey, M. P.; Matthews, J. M.; Moffat, A. F. J.; Rucinski, S. M.; Sasselov, D.; Walker, G. A. H. (American Astronomical Society, 2009-10-20)
    NGC 2264 is a young open cluster lying above the Galactic plane in which six variable stars have previously been identified as possible pre-main-sequence (PMS) pulsators. Their oscillation spectra are relatively sparse ...

  • Chaplin, W. J.; Appourchaux, T.; Elsworth, Y.; Garcia, R. A.; Houdek, G.; Karoff, C.; Metcalfe, T. S.; Molenda-Zackowicz, J.; Monteiro, M. J. P. F. G.; Thompson, M. J.; Gruberbauer, Michael (American Astronomical Society, 2010-04-20)
    We present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5 d of science operations, reveal high signal-to-noise solar-like oscillation ...

  • Handler, G.; Matthews, J. M.; Eaton, J. A.; Daszynska-Daszkiewicz, J.; Kuschnig, R.; Lehmann, H.; Rodriguez, E.; Pamyatnykh, A. A.; Zdravkov, T.; Lenz, P.; Guenther, David B. (American Astronomical Society, 2009-06-10)
    We have acquired simultaneous high-precision space photometry and radial velocities of the bright hybrid [beta] Cep/Slowly Pulsating B pulsator [gamma] Peg. Frequency analyses reveal the presence of six gravity (g) modes ...

  • Gruberbauer, Michael; Kallinger, T.; Mosser, B.; Hekker, S.; Huber, D.; Stello, D.; Mathur, S.; Basu, S.; Bedding, T. R.; Chaplin, W. J. (EDP Sciences, 2010-10)
    Context. Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of ...

  • Takahashi, Tadayuki; Kokubun, Motohide; Mitsuda, Kazuhisa; Kelley, Richard; Ohashi, Takaya; Aharonian, Felix; Akamatsu, Hiroki; Akimoto, Fumie; Allen, Steve; Anabuki, Naohisa; Gallo, Luigi C.; Wilkins, D. R. (SPIE International Society for Optical Engineering, 2016)
    The Hitomi (ASTRO-H) mission is the sixth Japanese X-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. The mission aimed to provide the highest energy ...

  • Takahashi, Tadayuki; Mitsuda, Kazuhisa; Kelley, Richard; Aharonian, Felix; Akamatsu, Hiroki; Akimoto, Fumie; Allen, Steve; Anabuki, Naohisa; Angelini, Lorella; Arnaud, Keith; Gallo, Luigi C.; Wilkins, D. R. (Society of Photo Optical Instrumental Engineers, 2014-12-03)
    The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions developed by the Institute of Space and Astronautical Science (ISAS), with a planned launch in 2015. The ASTRO-H mission is ...