Now showing items 4689-4708 of 19438

    • The dust and [CII] morphologies of redshift ~4.5 sub-millimeter galaxies at ~200pc resolution : The Absence of Large Clumps in the Interstellar Medium at High-redshift 

      Gullberg, B.; Swinbank, A. M.; Smail, I.; Biggs, A. D.; Bertoldi, F.; Breuck, C. De; Chapman, S. C.; Chen, C. -C.; Cooke, E. A.; Coppin, K. E. K.; Cox, P.; Dannerbauer, H.; Dunlop, J. S.; Edge, A. C.; Farrah, D.; Geach, J. E.; Greve, T. R.; Hodge, J.; Ibar, E.; Ivison, R. J.; Karim, A.; Schinnerer, E.; Scott, D.; Simpson, J. M.; Stach, S. M.; Thomson, A. P.; Werf, P. van der; Walter, F.; Wardlow, J. L.; Weiss, A. (2018-05-17)
      We present deep, high-resolution (0.″03, 200 pc) ALMA Band 7 observations covering the dust continuum and [C ii] λ157.7 μm emission in four z ∼4.4-4.8 sub-millimeter galaxies (SMGs) selected from the ALESS and AS2UDS ...
    • Dust and atomic gas in dwarf irregular galaxies of the M81 group: the SINGS and THINGS view 

      Walter, F.; Cannon, J.; Roussel, H.; Bendo, G.; Calzetti, D.; Dale, D.; Draine, B.; Helou, G.; Kennicutt, R.C.; Moustakas, J.; Rieke, G.; Armus, L.; Engelbracht, C.; Gordon, K.; Hollenbach, D.; Lee, J.; Li, A.; Meyer, M.; Murphy, E.; Regan, M.; Smith, J.D.; Brinks, E.; de Blok, W.J.G.; Bigiel, F.; Thornley, M.D. (2007)
    • Dust and Infrared Polarization Signatures 

      Aitken, D. (Astronomical Society of the Pacific, 2005)
      An outline is presented of observations and interpretations of polarization in the near and mid-infrared. Grain alignment occurs in the diffuse interstellar medium, in dense and massive molecular clouds and in HII regions ...
    • Dust and smoke transport from Africa to South America : Lidar profiling over Cape Verde and the Amazon rainforest 

      Ansmann, Albert; Baars, Holger; Tesche, Matthias; Mueller, D.; Althausen, Dietrich; Engelmann, Ronny; Pauliquevis, Theotonio; Artaxo, Paulo (2009-06-02)
      Quasi-simultaneous vertically resolved multiwavelength aerosol Raman lidar observations were conducted in the near field (Praia, Cape Verde, 15 degrees N, 23.5 degrees W) and in the far field (Manaus, Amazon basin, Brazil, ...
    • Dust attenuation in 2<z<3 star-forming galaxies from deep ALMA observations of the Hubble Ultra Deep Field 

      McLure, R. J.; Dunlop, J. S.; Cullen, F.; Bourne, N.; Best, P. N.; Khochfar, S.; Bowler, R. A. A.; Biggs, A. D.; Geach, J. E.; Scott, D.; Michalowski, M. J.; Rujopakarn, W.; Kampen, E. van; Kirkpatrick, A.; Pope, A. (2018-05-21)
      We present the results of a new study of the relationship between infrared excess (IRX ≡ L IR/L UV), ultraviolet (UV) spectral slope (β) and stellar mass at redshifts 2 < z < 3, based on a deep Atacama Large Millimeter ...
    • Dust in a Hostile Environment: Interstellar Dust in the Line of Sight to HD62542 

      Magalhaes, A.M.; Rodrigues, C.V.; Meade, M.; Code, A.D.; Nordsieck, K.H.; Anderson, C.M.; Bailey, J.; Hough, J.; Wheatley, P.J. (Astronomical Society of the Pacific, 1996)
      HD 62542 is situated in a line of sight toward a ridge of dark matter in the Gum Nebula. That region is under the influence of UV radiation and stellar winds from hot stars. We use for the first time interstellar polarization ...
    • Dust in Spectral Galaxy Evolution Models 

      Moller, C.S.; Fritze, U.; Fricke, K.J.; Calzetti, D. (Astronomical Society of the Pacific, 2000)
      To analyse the effects of dust on the UV emission in various galaxy types we present our evolutionary synthesis models which includes dust absorption in a chemically consistent way. We show how the time evolution of the ...
    • Dust in spiral galaxies: global properties 

      Stevens, J. A.; Amure, M.; Gear, W.K. (2005-02)
    • Dust layer profiling using an aerosol dropsonde 

      Ulanowski, Z.; Kaye, Paul H.; Hirst, Edwin; Wieser, Andreas; Stanley, Warren (2015-04-12)
      Routine meteorological data is obtained in the atmosphere using disposable radiosondes, giving temperature, pressure, humidity and wind speed. Additional measurements are obtained from dropsondes, released from research ...
    • Dust mobilization and aerosol transport from West Africa to Cape Verde-a meteorological overview of SAMUM-2 

      Knippertz, Peter; Tesche, Matthias; Heinold, Bernd; Kandler, Konrad; Toledano, Carlos; Esselborn, Michael (2011-09-01)
      The second field campaign of the SAharan Mineral dUst experiMent (SAMUM-2) was performed between 15 January and 14 February 2008 at the airport of Praia, Cape Verde, and provided valuable information to study the westward ...
    • Dust mobilization and transport in the northern Sahara during SAMUM 2006 - a meteorological overview 

      Knippertz, Peter; Ansmann, Albert; Althausen, Dietrich; Mueller, D.; Tesche, Matthias; Bierwirth, Eike; Dinter, Tilman; Mueller, Thomas; Von Hoyningen-Huene, Wolfgang; Schepanski, Kerstin; Wendisch, Manfred; Heinold, Bernd; Kandler, Konrad; Petzold, Andreas; Schuetz, Lothar; Tegen, Ina (2009-02)
      The SAMUM field campaign in southern Morocco in May/June 2006 provides valuable data to study the emission, and the horizontal and vertical transports of mineral dust in the Northern Sahara. Radiosonde and lidar observations ...
    • The dust morphology of the elliptical Galaxy M 86 with SPIRE 

      Gomez, H.L.; Baes, M.; Cortese, L.; Smith, M. W. L.; Boselli, A.; Ciesla, L.; Bendo, G. J.; Pohlen, M.; di Serego Alighieri, S.; Auld, R.; Barlow, M.J.; Bock, J. J.; Bradford, M.; Buat, V.; Castro-Rodriguez, N.; Chanial, P.; Charlot, S.; Clements, D. L.; Cooray, A.; Cormier, D.; Davies, J. I.; Dwek, E.; Eales, S.; Elbaz, D.; Galametz, M.; Galliano, F.; Gear, W.K.; Glenn, J.; Griffin, M.; Hony, S.; Isaak, K.G.; Levenson, L. R.; Lu, N.; Madden, S.; O'Halloran, B.; Okumura, K.; Oliver, S.; Page, M.J.; Panuzzo, P.; Papageorgiou, A.; Parkin, T.J.; Perez-Fournon, I.; Rangwala, N.; Rigby, E. E.; Roussel, H.; Rykala, A.; Sacchi, N.; Sauvage, M.; Schirm, M. R. P.; Schulz, B.; Spinoglio, L.; Srinivasan, S.; Stevens, Jason; Symeonidis, M.; Trichas, M.; Vaccari, M.; Vigroux, L.; Wilson, C.D.; Wozniak, H.; Wright, G.S.; Zeilinger, W.W. (2010-07-01)
      We present Herschel-SPIRE observations at 250–500 μm of the giant elliptical galaxy M 86 and examine the distribution of the resolved cold dust emission and its relation with other galactic tracers. The SPIRE images reveal ...
    • Dust Spirals and Acoustic Noise in the Nucleus of the Galaxy NGC 2207 

      Elmegreen, B.; Elmegreen, D.M.; Brinks, E.; Yuan, C.; Kaufman, M.; Klaric, M.; Montenegro, L.; Struck, K.; Thomasson, M. (1998)
      Observations with the Hubble Space Telescope reveal an irregular network of dust spiral arms in the nuclear region of the interacting disk galaxy NGC 2207. The spirals extend from »50 to »300 pc in galactocentric radius, ...
    • Dust, Gas, and the Evolutionary Status of the Radio Galaxy 8C 1435+635 at z = 4.25 

      Ivison, R.J.; Dunlop, J.S.; Hughes, D.H.; Archibald, E.N.; Stevens, J. A.; Holland, W.S.; Robson, E.I.; Eales, S.; Rawlings, S.; Dey, A.; Gear, W.K. (1998)
      We present the results of new rest-frame far-IR observations of the z\4.25 radio galaxy 8C 1435]635, which not only conÐrm that it contains an enormous quantity of dust (as Ðrst inferred from its millimeter-wave detection ...
    • Duties to the Dead? : Earnest Imagination and Remembrance 

      Stokes, Patrick (Indiana University Press, 2011-09-29)
    • Duty cycle of the radio galaxy B2 0258+35 

      Brienza, M.; Morganti, R.; Murgia, M.; Vilchez, N.; Adebahr, B.; Carretti, E.; Concu, R.; Govoni, F.; Harwood, J.; Intema, H.; Loi, F.; Melis, A.; Paladino, R.; Poppi, S.; Shulevski, A.; Vacca, V.; Valente, G. (2018-10-11)
      Context. Radio loud active galactic nuclei (AGN) are episodic in nature, cycling through periods of activity and quiescence. The study of this duty cycle has recently gained new relevance because of the importance of AGN ...
    • Duty to care has never been more relevant 

      Scott, Patricia (2017-05-12)
      The recent attack on Westminster Bridge in London sparked an immediate response from the emergency services who tried to save the lives of the many people who had been mowed down by a single perpetrator. The emergency teams ...
    • Dwarf Galaxies and Star Clusters in Tidal Tails 

      Weilbacher, P.; Fritze, U.; Duc, P.A. (The International Astronomical Union, 2002)