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Now showing items 5539-5558 of 24094

    • Discovery of an X-ray cavity near the radio lobes of Cygnus A indicating previous AGN activity 

      Chon, G.; Böhringer, H.; Krause, Martin; Trümper, J. (2012-09-01)
      Cygnus A harbours the nearest powerful radio jet of a Fanaroff-Riley (FR) class II radio galaxy in a galaxy cluster where the interaction of the jet with the intracluster medium (ICM) can be studied in detail. We use a ...

    • Discovery of another Am-Herculis Variable in the Period Gap 

      Wickramasinghe, D.T.; Ferrario, L.; Bailey, J.; Drissen, L.; Dopita, M.A.; Shara, M.; Hough, J. (1993)
      Recently, Buckley et al. drew attention to a new AM Her variable, RE1938 - , discovered by the ROSAT survey with a period of 2.33 h which places it in the middle of the usual 2-3 h period gap for cataclysmic variables. ...

    • Discovery of close binary central stars in the planetary nebulae NGC 6326 and NGC 6778 

      Jones, D.; Rodriguez-Gil, P.; Boffin, H.M.J.; Corradi, R.L.M.; Santander-Garcia, M.; Miszalski, Brent (2011)
      We present observations proving the close binary nature of the central stars belonging to the planetary nebulae (PNe) NGC 6326 and NGC 6778. Photometric monitoring reveals irradiated lightcurves with orbital periods of ...

    • Discovery of eleven new ZZ Ceti stars 

      Castanheira, B.G.; Kepler, S.O.; Mullally, F.; Winget, D.E.; Koester, D.; Voss, B.; Kleinman, S.J.; Nitta, A.; Eisenstein, D.J.; Napiwotzki, R.; Reimers, D. (2006)

    • Discovery of Hot Gas in Outflow in NGC 3379 

      Trinchieri, G.; Pellegrini, S.; Fabbiano, G.; Fu, R.; Brassington, Nicola; Zezas, A.; Kim, D.-W.; Gallagher, J.; Angelini, L.; Davies, R. L.; Kalogera, V.; King, A.R.; Zepf, S. (2008-12-01)
      We report the discovery of a faint (LX~4+/-1.5×1037 ergs s-1, 0.5-2 keV), outflowing gaseous hot interstellar medium (ISM) in NGC 3379. This represents the lowest X-ray luminosity ever measured from a hot phase of the ISM ...

    • Discovery of inhibitors of the pentein superfamily protein dimethylarginine dimethylaminohydrolase (DDAH), by virtual screening and hit analysis 

      Hartzoulakis, B.; Rossiter, S.; Gill, H.; Steinke, E.; Gane, P.J.; Hurtado-Guerrero, R.; Leiper, J.M.; Vallance, P.; Murray-Rust, J.; Selwood, D.L. (2007)

    • Discovery of kilogauss magnetic fields in three DA white dwarfs 

      Aznar Cuadrado, R.; Jordan, S.; Napiwotzki, R.; Schmid, H.M.; Solanki, S.K.; Mathys, G. (2004)
      We have detected longitudinal magnetic fields between 2 and 4 kG in three (WD0446−790, WD1105−048, WD2359−434) out of a sample of 12 normal DA white dwarfs by using optical spectropolarimetry done with the VLT Antu 8 m ...

    • The discovery of low-mass pre-main-sequence stars in Cepheus OB3b 

      Pozzo, M.; Naylor, T.; Jeffries, R.D.; Drew, J.E. (2003)

    • Discovery of new globular clusters in the Sagittarius dwarf galaxy 

      Minniti, D.; Ripepi, V.; Fernández-Trincado, J. G.; Alonso-García, J.; Smith, L. C.; Lucas, P. W.; Gómez, M.; Pullen, J. B.; Garro, E. R.; Cádiz, F. Vivanco; Hempel, M.; Rejkuba, M.; Saito, R. K.; Palma, T.; Clariá, J. J.; Gregg, M.; Majaess, D. (2021-03-12)
      Context. Globular clusters (GCs) are witnesses of the past accretion events onto the Milky Way. In particular, the GCs of the Sagittarius (Sgr) dwarf galaxy are important probes of an on-going merger. Aims. Our main goal ...

    • Discovery of novel small molecule inhibitors of S100P, with in vitro anti-metastatic effects on pancreatic cancer cells 

      Camara, Ramatoulie; Ogbeni, Deborah; Gerstmann, Lisa; Ostovar, Mehrnoosh; Hurer, Ellie; Scott, Mark; Mahmoud, Nasir; Radon, Tomasz; Crnogorac-Jurcevic, Tatjana; Patel, Pryank; Mackenzie, Louise Susan; Chau, David; Kirton, Stewart; Rossiter, Sharon (2020-10-01)
      S100P, a calcium- binding protein, is known to advance tumor progression and metastasis in pancreatic and several other cancers. Herein is described the in silico identification of a putative binding pocket of S100P to ...

    • Discovery of seven ZZ Ceti stars using a new photometric selection method 

      Voss, B.; Koester, D.; Ostensen, R.; Kepler, S.O.; Napiwotzki, R.; Homeier, D.; Reimers, D. (2006)

    • Discovery of shocked H-2 around OH 231.8+4.2 

      Forde, K.P.; Gledhill, T. (2012-03)
      We present K-band integral field observations of the circumstellar envelope of the evolved star OH 231.8+4.2. Spatial and spectral information was simultaneously acquired using the SINFONI integral field unit, with adaptive ...

    • Discovery of the benchmark metal poor T8 dwarf BD+01 2920B 

      Pinfield, D.J.; Burningham, B.; Lodieu, N.; Leggett, S.; Tinney, C.G.; van Spaandonk, L.; Marocco, F.; Smart, R.; Gomes, J.; Smith, Leigh; Lucas, P.W.; Day-jones, A.; Murray, D.; Katsiyannis, A. C.; Catalan, S.; Cardoso, C.; Clarke, James; Folkes, S.; Galvez-Ortiz, M.; Homeier, D.; Jenkins, J.; Jones, H.R.A.; Zhang, Z. (2012)
      We have searched the Wide-field Infrared Survey Explorer first data release for widely separated (<=10,000AU) late T dwarf companions to Hipparcos and Gliese stars. We have discovered a new binary system containing a K-band ...

    • Discovery of the first L dwarf plus giant binary system and eight other ultracool dwarfs in wide binaries 

      Zhang, Z.; Pinfield, D.J.; Day-Jones, A.C.; Burningham, B.; Jones, H.R.A.; Yu, S.; Jenkins, J.S.; Han, Z.; Galvez-Ortiz, M.C.; Gallardo, J.; Garcia Perez, A.E.; Weights, D.; Tinney, C.G.; Pokorny, R.S. (2010)
      We identify 806 ultracool dwarfs (of which 34 are newly discovered L dwarfs) from their Sloan Digital Sky Survey (SDSS) riz photometry and obtain proper motions through cross-matching with the United Kingdom Infrared ...

    • Discovery of the First Very Wide WD LD Binary System 

      Day-Jones, A.C.; Pinfield, D.J.; Jones, H.R.A.; Kendall, T.R.; Napiwotzki, R.; Jenkins, J.S. (Astronomical Society of the Pacific, 2007)
      We report on our large scale search of 2MASS and SuperCOS- MOS in the southern hemisphere for very widely separated white dwarf / L-dwarf binary systems and present our findings, including eight widely separated can- didate ...

    • Discovery of the first white dwarf + T dwarf binary system and the use of white dwarfs as age calibrators 

      Day-Jones, Avril; Pinfield, D.J.; Ruiz, M.; Beaumont, H.; Gallardo, J.; Gianninas, A.; Bergeron, P.; Napiwotzki, Ralf; Jenkins, J.S.; Burningham, B.; Zhang, Z.H.; Jones, H.R.A.; Murray, D.; Catalan, Silvia; Ines Gomes, Joana (American Institute of Physics (AIP), 2010)
      We present the discovery of the first white dwarf + T dwarf binary system. Systems containing a white dwarf and a brown dwarf are rare but can be used to place constraints on the age of the binary, making them valuable ...

    • The discovery of the T8.5 dwarf UGPS J0521+3640 

      Burningham, B.; Lucas, P.W.; Leggett, S.K.; Smart, R.; Baker, D.; Pinfield, D.J.; Tinney, C. G.; Homeier, D.; Allard, F.; Zhang, Z. H.; Gomes, J.; Day-Jones, A. C.; Jones, H.R.A.; Kovacs, G.; Lodieu, N.; Marocco, F.; Murray, D. N.; Sipocz, B. (2011-06)
      We have carried out a search for late-type T dwarfs in the UKIRT Infrared Deep Sky Survey Galactic Plane Survey 6th Data Release. The search yielded two persuasive candidates, both of which have been confirmed as T dwarfs. ...

    • Discovery of two new methanol masers in NGC7538 

      Pestalozzi, M.; Minier, V.; Motte, F.; Conway, J. (2006-01)

    • Discrepancy between self-reported and observed hand hygiene behaviour in healthcare professionals 

      Jenner, E.A.; Fletcher, Ben; Watson, P.; Jones, F.; Miller, L.K.; Scott, G.M. (2006)
      Hand hygiene behaviour in 71 healthcare professionals was observed on hospital wards for a total of 132h, encompassing 1284 hand hygiene opportunities. Questionnaires completed by the participants were used to compare ...

    • Discrete developmental genetic regulatory networks for the evolution of cooperation 

      Buck, M.; Nehaniv, C.L. (AAAI, 2006)