• X-Ray And Optical Flux Ratio Anomalies In Quadruply Lensed Quasars. II. Mapping The Dark Matter Content In Elliptical Galaxies 

      Pooley, David; Rappaport, Saul; Blackburne, Jeffrey A.; Schechter, Paul L.; Wambsganss, Joachim (2012-01)
      We present a microlensing analysis of 61 Chandra observations of 14 quadruply lensed quasars. X-ray flux measurements of the individual quasar images give a clean determination of the microlensing effects in the lensing ...
    • X-Ray Emission From An FU Orionis Star In Early Outburst: HBC 722 

      Liebhart, Armin; Gudel, Manuel; Skinner, Stephen L.; Green, Joel (2014-10)
      Aims. We conducted the first X-ray observations of the newly erupting FU Ori-type outburst in HBC 722 ( V2493 Cyg) with the aim to characterize its X-ray behavior and near-stellar environment during early outburst. Methods. ...
    • X-Ray Structure Determination Of A Dimeric Hemoglobin From Caudina arenicola 

      Mitchell, David T.; Ernst, Stephen R.; Hackert, Marvin L. (1995-09)
      The X-ray structure of a dimeric, cyanomet-liganded hemoglobin D-chain (Hb-D) from Caudina arenicola has been determined by the molecular-replacement method. The search model was a concatenated model of three hemoglobin ...
    • X-Ray Tomography To Measure Size Of Fragments From Penetration Of High-Velocity Tungsten Rods 

      Stone, Z.; Bless, S.; Tolman, J.; McDonald, J.; Levinson, S.; Hanna, R. (2012-03)
      Behind-armor debris that results from tungsten rods penetrating armor steel at 2 km/s was studied by analysis of recovered fragments. Fragment recovery was by means of particle board. Individual fragments were analyzed by ...
    • X-Shooter Observations of Main-Sequence Stars in the Globular Cluster NGC 2808: First Chemical Tagging of A He-Normal and A He-Rich Dwarf 

      Bragaglia, A.; Carretta, E.; Gratton, R. G.; Lucatello, Sara; Milone, A.; Piotto, G.; D'Orazi, V.; Cassisi, S.; Sneden, Christopher; Bedin, L. R. (2010-09)
      We present the first chemical composition study of two unevolved stars in the globular cluster NGC 2808, obtained with the X-shooter spectrograph at VLT.NGC 2808 shows three discrete, well-separated main sequences. The ...
    • Xo-3b: A Massive Planet In An Eccentric Orbit Transiting An F5V Star 

      Johns-Krull, Christopher M.; McCullough, Peter R.; Burke, Christopher J.; Valenti, Jeff A.; Janes, K. A.; Heasley, J. N.; Prato, L.; Bissinger, R.; Fleenor, M.; Foote, C. N.; Garcia-Melendo, E.; Gary, B. L.; Howell, P. J.; Mallia, F.; Masi, G.; Vanmunster, T. (2008-04)
      We report the discovery of a massive planet (M-p sin i 13.02 +/- 0.64 M-J; total mass = 13.25 +/- 0.64 M-J), large (1.95 +/- 0.16 R-J) planet in a transiting, eccentric orbit (e = 0.260 +/- 0.017) around a 10th magnitude ...
    • Yangtze Patrol. The U. S. Navy in China by Kemp Tolley 

      Braisted, William R. (The Journal of Asian Studies, 1972)
    • Year 1 report for ‘Conserving Texas Biodiversity: Status, Trends, and Conservation Planning for Fishes of Greatest Conservation Need’ 

      Hendrickson, Dean A.; Garrett, Gary P.; Labay, Ben J.; Cohen, Adam E.; Casarez, Melissa (2015-12-31)
      Substantive progress was made on all major Project Activities in this first year: Activity 1. Coordinate and Facilitate Science and Conservation Actions for Conserving Texas Biodiversity - We expanded and strengthened ...
    • The Young Population Of The Chamaeleon II Dark Cloud 

      Spezzi, Loredana; Alcala, Juan M.; Covino, Elvira; Frasca, Antonio; Gandolfi, Davide; Oliveira, Isa; Chapman, Nicholas; Evans, Neal J.; Huard, Tracy L.; Jorgensen, Jes K.; Merin, Bruno; Stapelfeldt, Karl R. (2008-06)
      We discuss the results of the optical spectroscopic follow-up of pre-main-sequence (PMS) objects and candidates selected in the Chamaeleon II dark cloud based on data from the Spitzer Legacy survey "From Molecular Cores ...
    • Young Stellar Objects in the Gould Belt 

      Dunham, Miranda M.; Allen, Lori E.; Evans, Neal J., II; Broekhoven-Fiene, Hannah; Cieza, Lucas A.; Di Francesco, James; Gutermuth, Robert A.; Harvey, Paul M.; Hatchell, Jennifer; Heiderman, Amanda; Huard, Tracy L.; Johnstone, Doug; Kirk, Jason M.; Matthews, Brenda C.; Miller, Jennifer F.; Peterson, Dawn E.; Young, Kaisa E. (2015-09)
      We present the full catalog of Young Stellar Objects (YSOs) identified in the 18 molecular clouds surveyed by the Spitzer Space Telescope "cores to disks" (c2d) and "Gould Belt" (GB) Legacy surveys. Using standard techniques ...
    • The Young, Massive, Star Cluster Sandage-96 After The Explosion Of Supernova 2004dj In NGC 2403 

      Vinko, Jozsef; Sarneczky, K.; Balog, Z.; Immler, S.; Sugerman, B. E. K.; Brown, Peter J.; Misselt, K.; Szabo, G. M.; Csizmadia, S.; Kun, M.; Klagyivik, P.; Foley, Ryan J.; Filippenko, Alexei V.; Csak, B.; Kiss, L. L. (2009-04)
      The bright Type II-plateau supernova (SN) 2004dj occurred within the young, massive stellar cluster Sandage-96 in a spiral arm of NGC 2403. New multiwavelength observations obtained with several ground-based and space-based ...
    • A Young-Planet Search in Visible and Infrared Light: Dn Tauri, V836 Tauri, and V827 Tauri 

      Prato, L.; Huerta, M.; Johns-Krull, C. M.; Mahmud, N.; Jaffe, D. T.; Hartigan, P. (2008-11)
      In searches for low-mass companions to late-type stars, correlation between radial velocity variations and line bisector slope changes indicates contamination by large starspots. Two young stars demonstrate that this test ...
    • Zahn Stimuli 

      Hopper, Robert, 1945-1998 (1980 to 19)
    • Zero-set ultrafilters and G-closures in uniform spaces 

      Cruzer, Howard; Hager, Anthony W. (Journal of Australian Mathematical Society (Series A), 1979)
    • ZFOURGE/CANDELS: On The Evolution Of M* Galaxy Progenitors From Z=3 To 0.5 

      Papovich, Casey; Labbe, I.; Quadri, R.; Tilvi, Vithal; Behroozi, Peter; Bell, Eric F.; Glazebrook, K.; Spitler, L.; Straatman, C. M. S.; Tran, K. V.; Cowley, M.; Dave, Romeel; Dekel, Avishai; Dickinson, Mark; Ferguson, Henry C.; Finkelstein, Steven L.; Gawiser, Eric; Inami, H.; Faber, S. M.; Kacprzak, G. G.; Kawinwanichakij, L.; Kocevski, D.; Koekemoer, A.; Koo, D. C.; Kurczynski, Peter; Lotz, Jennifer M.; Lu, Y.; Lucas, Ray A.; McIntosh, D.; Mehrtens, N.; Mobasher, Bahram; Monson, A.; Morrison, G.; Nanayakkara, T.; Persson, S. E.; Salmon, Brett; Simons, R.; Tomczak, A.; van Dokkum, P.; Weiner, B.; Willner, S. P. (2015-04)
      Galaxies with stellar masses near M* contain the majority of stellar mass in the universe, and are therefore of special interest in the study of galaxy evolution. The Milky Way (MW) and Andromeda (M31) have present-day ...
    • Zoosporogenesis In 

      Slocum, R. D.; Ahmadjian, V.; Hildreth, K. C. (The Lichenologist, 1980)
    • The ZZ Ceti Red Edge 

      Kanaan, A.; Kepler, S. O.; Winget, D. E. (2002-06)
      With a time-series CCD photometric survey, we have demonstrated clearly that the observed red edge for the ZZ Ceti stars instability strip at 11 000 K is real, with the pulsation amplitude decreasing at least by a factor ...
    • α-TEA-induced death receptor dependent apoptosis involves activation of acid sphingomyelinase and elevated ceramide-enriched cell surface membranes 

      Li, Jing; Yu, Weiping; Tiwary, Richa; Park, Sook-Kyung; Xiong, Ailian; Sanders, Bob G.; Kline, Kimberly (Cancer Cell International, 2010-10-25)
      Background: Alpha-tocopherol ether-linked acetic acid (α-TEA), an analog of vitamin E (RRR-alpha-tocopherol), is a potent and selective apoptosis-inducing agent for human cancer cells in vivo and in vitro. α-TEA induces ...