• Broad-Line Reverberation In The Kepler-Field Seyfert Galaxy Zw 229-015 

    Barth, Aaron J.; Nguyen, My L.; Malkan, Matthew A.; Filippenko, Alexei V.; Li, Weidong; Gorjian, Varoujan; Joner, Michael D.; Bennert, Vardha Nicola; Botyanszki, Janos; Cenko, S. Bradley; Childress, Michael; Choi, Jieun; Comerford, Julia M.; Cucciara, Antonino; da Silva, Robert; Duchene, Gaspard; Fumagalli, Michele; Ganeshalingam, Mohan; Gates, Elinor L.; Gerke, Brian F.; Griffith, Christopher V.; Harris, Chelsea; Hintz, Eric G.; Hsiao, Eric; Kandrashoff, Michael T.; Keel, William C.; Kirkman, David; Kleiser, Io K. W.; Laney, C. David; Lee, Jeffrey; Lopez, Liliana; Lowe, Thomas B.; Moody, J. Ward; Morton, Alekzandir; Nierenberg, A. M.; Nugent, Peter; Pancoast, Anna; Rex, Jacob; Rich, R. Michael; Silverman, Jeffrey M.; Smith, Graeme H.; Sonnenfeld, Alessandro; Suzuki, Nao; Tytler, David; Walsh, Jonelle L.; Woo, Jong-Hak; Yang, Yizhe; Zeisse, Carl (2011-05)
    The Seyfert 1 galaxy Zw 229-015 is among the brightest active galaxies being monitored by the Kepler mission. In order to determine the black hole mass in Zw 229-015 from H beta reverberation mapping, we have carried out ...
  • The Broad-Lined Type Ic SN 2012ap And The Nature Of Relativistic Supernovae Lacking A Gamma-Ray Burst Detection 

    Milisavljevic, Dan; Margutti, R.; Parrent, Jerod T.; Soderberg, Alicia M.; Fesen, Robert A.; Mazzali, P.; Maeda, K.; Sanders, N. E.; Cenko, S. Bradley; Silverman, Jeffrey M.; Filippenko, Alexei V.; Kamble, A.; Chakraborti, S.; Drout, M. R.; Kirshner, Robert P.; Pickering, T. E.; Kawabata, K.; Hattori, T.; Hsiao, Eric Y.; Stritzinger, Maximillian D.; Marion, G. H.; Vinko, Jozsef; Wheeler, J. Craig (2015-01)
    We present ultraviolet, optical, and near-infrared observations of SN 2012ap, a broad-lined Type Ic supernova in the galaxy NGC 1729 that produced a relativistic and rapidly decelerating outflow without a gamma-ray burst ...
  • Buelow Contredanses: Rising Lines 

    Neumeyer, David (2015-04-18)
    Pieces with rising cadence gestures in the contradance collections associated with Johan Bülow, court musician in Copenhagen in the late 18th century. This file surveys all seven collections (more than the article “Rising ...
  • Buffering by gene duplicates: an analysis of molecular correlates and evolutionary conservation 

    Hannay, Kevin; Marcotte, Edward M.; Vogel, Christine (BMC Genomics, 2008-12-16)
    Background: One mechanism to account for robustness against gene knockouts or knockdowns is through buffering by gene duplicates, but the extent and general correlates of this process in organisms is still a matter of ...
  • Building Instruction Assessment and Teaching Support from the Grassroots Up 

    Coco, Pete; Lyon, Colleen; Frigo, Emily (2012)
  • Bulge n And B/T In High-Mass Galaxies: Constraints On The Origin Of Bulges In Hierarchical Models 

    Weinzirl, Tim; Jogee, Shardha; Khochfar, S.; Burkert, Andreas; Kormendy, John (2009-05)
    We use the bulge Sersic index n and bulge-to-total mass ratio (B/T) to explore the fundamental question of how bulges form. We perform two-dimensional bulge-disk-bar decomposition on H-band images of 143 bright, high-mass ...
  • The Bulge Radial Velocity Assay (BRAVA). II. Complete Sample And Data Release 

    Kunder, Andrea; Koch, Andreas; Rich, R. Michael; de Propris, Roberto; Howard, Christian D.; Stubbs, Scott A.; Johnson, Christian I.; Shen, Juntai T.; Wang, Yougang G.; Robin, Annie C.; Kormendy, John; Soto, Mario; Frinchaboy, Peter; Reitzel, David B.; Zhao, HongSheng; Origlia, Livia (2012-03)
    We present new radial velocity measurements from the Bulge Radial Velocity Assay, a large-scale spectroscopic survey of M-type giants in the Galactic bulge/bar region. The sample of similar to 4500 new radial velocities, ...
  • Bulgeless Giant Galaxies Challenge Our Picture Of Galaxy Formation By Hierarchical Clustering 

    Kormendy, John; Drory, Niv; Bender, Ralf; Cornell, Mike E. (2010-11)
    To better understand the prevalence of bulgeless galaxies in the nearby field, we dissect giant Sc-Scd galaxies with Hubble Space Telescope (HST) photometry and Hobby-Eberly Telescope (HET) spectroscopy. We use the HET ...
  • Bulges Of Nearby Galaxies With Spitzer: Scaling Relations In Pseudobulges And Classical Bulges 

    Fisher, David B.; Drory, Niv (2010-06)
    We investigate scaling relations of bulges using bulge-disk decompositions at 3.6 mu m and present bulge classifications for 173 E-Sd galaxies within 20 Mpc. Pseudobulges and classical bulges are identified using Sersic ...
  • Bulges Of Nearby Galaxies With Spitzer: The Growth Of Pseudobulges In Disk Galaxies And Its Connection To Outer Disks 

    Fisher, David B.; Drory, Niv; Fabricius, Maximillian H. (2009-05)
    We study star formation rates (SFRs) and stellar masses in bulges of nearby disk galaxies. For this we construct a new SFR indicator that linearly combines data from the Spitzer Space Telescope and the Galaxy Evolution ...
  • Bullet Cluster: A Challenge To Lambda CDM Cosmology 

    Lee, Jounghun; Komatsu, Eiichiro (2010-07)
    To quantify how rare the bullet-cluster-like high-velocity merging systems are in the standard Lambda cold dark matter (CDM) cosmology, we use a large-volume (27 h(-3) Gpc(3)) cosmological N-body MICE simulation to calculate ...
  • Bureaucratic Politics and Administration in Chile by Peter S. Cleaves 

    Graham, Lawrence S. (The Journal of Politics, 1976)
  • Bureaucratic Politics And Overseas Investment By Chinese State-Owned Oil Companies Illusory Champions 

    Liou, Chih-shian (2009)
    From the state-centered perspective, China's hunt for foreign energy deals has generated increasing uneasiness in international relations. By exploring Chinese national oil companies' overseas expansion, this study finds ...
  • Burn The Sari Or Save The Sari? Dress As A Form Of Action In Two Feminist Poems 

    Zare, Bonnie; Mohammed, Afsar (2012-04)
    This essay analyzes two poems that-examine the sari's materialization of gender norms and the degree to which the dress may be used to subvert such norms. Jayaprabha's Telugu poem >Burn the Sari> appeared in 1988 (with an ...
  • The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. I. H2O And The 5-8 Mu M Bands 

    Boogert, Adwin C. A.; Pontoppidan, Klaus M.; Knez, Claudia; Lahuis, Fred; Kessler-Silacci, J.; van Dishoeck, Ewine F.; Blake, Geoffrey A.; Augereau, Jean-Charles; Bisschop, S. E.; Bottinelli, Sandrine; Brooke, Tyler Y.; Brown, Justin; Crapsi, Antonio; Evans, Neal J.; Fraser, Helen J.; Geers, V.; Huard, Tracy L.; Jorgensen, Jes K.; Oberg, Karin I.; Allen, Lori E.; Harvey, Paul M.; Koerner, David W.; Mundy, Lee G.; Padgett, Deborah L.; Sargent, Anneila I.; Stapelfeldt, Karl R. (2008-05)
    To study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low-luminosity YSOs (L similar to 0.1-10 L-circle dot) using 3-38 mu m Spitzer and ground-based ...
  • The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. II. CO2 

    Pontoppidan, Klaus M.; Boogert, Adwin C. A.; Fraser, Helen J.; van Dishoeck, Ewine F.; Blake, Geoffrey A.; Lahuis, Fred; Oberg, Karin I.; Evans, Neal J.; Salyk, Colette (2008-05)
    This paper presents Spitzer IRS lambda/Delta lambda similar to 600 spectroscopy of the CO2 15.2 mu m bending mode toward 50 embedded young low-mass stars, taken mostly from the "Cores to Disks'' (c2d) Legacy program. The ...
  • The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. III. CH4 

    Oberg, Karin I.; Boogert, Adwin C. A.; Pontoppidan, Klaus M.; Blake, Geoffrey A.; Evans, Neal J.; Lahuis, Fred; van Dishoeck, Ewine F. (2008-05)
    CH4 is proposed to be the starting point of a rich organic chemistry. Solid CH4 abundances have previously been determined mostly toward high-mass star-forming regions. Spitzer IRS now provides a unique opportunity to probe ...
  • The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. IV. NH3 And CH3OH 

    Bottinelli, Sandrine; Boogert, Adwin C. A.; Bouwman, Jordy; Beckwith, Martha; van Dishoeck, Ewine F.; Oberg, Karin I.; Pontoppidan, Klaus M.; Linnartz, H.; Blake, Geoffrey A.; Evans, Neal J.; Lahuis, Fred (2010-08)
    NH3 and CH3OH are key molecules in astrochemical networks leading to the formation of more complex N- and O-bearing molecules, such as CH3CN and CH3OCH3. Despite a number of recent studies, little is known about their ...
  • c2d Spitzer-IRS Spectra Of Disks Around T Tauri Stars IV. Crystalline Silicates 

    Olofsson, J.; Augereau, J. C.; van Dishoeck, E. F.; Merin, B.; Lahuis, F.; Kessler-Silacci, J.; Dullemond, C. P.; Oliveira, I.; Blake, G. A.; Boogert, A. C. A.; Brown, J. M.; Evans, Neal J.; Geers, V.; Knez, C.; Monin, J. L.; Pontoppidan, K. (2009-11)
    Aims. Dust grains in the planet-forming regions around young stars are expected to be heavily processed due to coagulation, fragmentation, and crystallization. This paper focuses on the crystalline silicate dust grains in ...