Now showing items 83-102 of 863

    • Clues on Blazars Phenomenology from the FIRST Flat Spectrum Sample 

      Fossati, G.; Meyer, E. T. (Astronomical Society of the Pacific, 2010)
      We highlight some results of our work on the FIRST Flat Spectrum Sample (FFSS) of blazars, in particular concerning the relationship between their luminosity and Spectral Energy Distribution (SED), including preliminary ...
    • Co-location on Ground and in Space, GGOS Core Sites 

      Pearlman, Michael; Schuh, Harald; Pavlis, Erricos (International Earth Rotation and Reference Systems Service, 2011-09-16)
    • Coherent Turbulence in the Boundary Layer of Hurricane Rita (2005) during an Eyewall Replacement Cycle 

      Guimond, Stephen R.; Zhang, Jun A.; Sapp, Joseph W.; Frasier, Stephen J. (American Meteorological Society (AMS), 2018-08-17)
      The structure of coherent turbulence in an eyewall replacement cycle in Hurricane Rita (2005) is presented from novel airborne Doppler radar observations using the Imaging Wind and Rain Airborne Profiler (IWRAP). The IWRAP ...
    • Coincidence of a high-fluence blazar outburst with a PeV-energy neutrino event 

      Ojha, Roopesh; et al. (Nature, 2016-04-18)
      The astrophysical sources of the extraterrestrial, very high-energy neutrinos detected by the IceCube collaboration remain to be identified. Gamma-ray (γ-ray) blazars have been predicted to yield a cumulative neutrino ...
    • COLLECTIVE EVIDENCE FOR INVERSE COMPTON EMISSION FROM EXTERNAL PHOTONS IN HIGH-POWER BLAZARS 

      Meyer, Eileen T.; Fossati, Giovanni; Georganopoulos, Markos; Lister, Matthew L. (IOP, 2012-05-18)
      We present the first collective evidence that Fermi-detected jets of high kinetic power (L kin) are dominated by inverse Compton emission from upscattered external photons. Using a sample with a broad range in orientation ...
    • Compact Resolved Ejecta in the Nearest Tidal Disruption Event 

      Perlman, Eric S.; Meyer, Eileen T.; Wang, Q. Daniel; Yuan, Qiang; Henriksen, Richard; Irwin, Judith; Krause, Marita; Wiegert, Theresa; Murphy, Eric J.; Heald, George; Dettmar, Ralf-Jürgen (IOP, 2017-06-22)
      Tidal disruption events (TDEs) occur when a star or substellar object passes close enough to a galaxy's supermassive black hole to be disrupted by tidal forces. NGC 4845 (d = 17 Mpc) was host to a TDE, IGR J12580+0134, ...
    • Comparisons of bispectral and polarimetric retrievals of marine boundary layer cloud microphysics: case studies using a LES–satellite retrieval simulator 

      Miller, Daniel J.; Zhang, Zhibo; Platnick, Steven; Ackerman, Andrew S.; Werner, Frank; Cornet, Celine; Knobelspiesse, Kirk (Copernicus Publications, 2018-06-26)
      Many passive remote-sensing techniques have been developed to retrieve cloud microphysical properties from satellite-based sensors, with the most common approaches being the bispectral and polarimetric techniques. These ...
    • Compensating for beamsplitter asymmetries in quantum interference experiments 

      Liang, J.; Pittman, T.B. (OSA Publishing, 2010)
      The visibility of the quantum interference “dip” seen in the Hong–Ou–Mandel experiment is optimized when a symmetric 50⁄50 beamsplitter is used in the interferometer. Here we show that the reduction in visibility caused ...
    • Completing the K-band Celestial Reference Frame in the Southern Hemisphere 

      de Witt, A.; Bertarini, A.; Horiuchi, S.; Jacobs, C.S.; Jung, T.; Lovell, J.E.J.; McCallum, J.N.; Quick, J.F.H.; Sohn, B.W.; Phillips, C.; Ojha, R. (IVS Publications, 2014)
      K-band (22 GHz) radio observations have the potential to form the basis for the most accurate Celestial Reference Frame(CRF) ever constructed. Relative to the standard S/X (2.3/8.4 GHz) observing bands, K-band is expected ...
    • A Comprehensive X-ray Report on AT2019wey 

      Yao, Yuhan; Kulkarni, S. R.; Gendreau, K. C.; Jaisawal, Gaurava K.; Enoto, Teruaki; Grefenstette, Brian W.; Marshall, Herman L.; Garcia, Javier A.; Ludlam, R. M.; Pike, Sean N.; Ng, Mason; Zhang, Liang; Altamirano, Diego; Jaodand, Amruta; Cenko, S. Bradley; Remillard, Ronald A.; Steiner, James F.; Negoro, Hitoshi; Brightman, Murray; Lien, Amy; Wolff, Michael T.; Ray, Paul S.; Mukai, Koji; Wadiasingh, Zorawar; Arzoumanian, Zaven; Kawai, Nobuyki; Mihara, Tatehiro; Strohmayer, Tod E. (2020-11-30)
      The Galactic low-mass X-ray binary AT2019wey (ATLAS19bcxp, SRGA J043520.9+552226, SRGE J043523.3+552234, ZTF19acwrvzk) was discovered as a new optical transient in Dec 2019, and independently as an X-ray transient in Mar ...
    • Compton-Pair Production Space Telescope (ComPair) for MeV Gamma-ray Astronomy 

      Moiseev, A.A.; Ajello, M.; Buckley, J.H.; Caputo, R.; Ferrara, E.C.; Hartmann, D.H.; Hays, E.; McEnery, J.E.; Mitchell, J.W.; Ojha, R.; Perkins, J.S.; Racusin, J.L.; Smith, A.W.; Thompson, D.J. (2015-09-18)
      The gamma-ray energy range from a few hundred keV to a few hundred MeV has remained largely unexplored, mainly due to the challenging nature of the measurements, since the pi- oneering, but limited, observations by COMPTEL ...
    • Consequences of a possible jet-star interaction in the inner central parsec of Centaurus A 

      Müller, C.; Kadler, M.; Mannheim, K.; Perucho, M.; Ojha, R.; Ros, E.; Schulza, R.; Wilms, J.
      The jet-counterjet system of the closest radio-loud active galaxy Centaurus A (Cen A) can be studied with Very Long Baseline Interferometry (VLBI) on unprecedented small linear scales of ∼ 0.018 pc. These high-resolution ...
    • CONTEMPORANEOUS BROADBAND OBSERVATIONS OF THREE HIGH-REDSHIFT BL LAC OBJECTS 

      Mirabal, N. (IOP, 2016-03-21)
      We have collected broadband spectral energy distributions (SEDs) of three BL Lac objects 3FGL J0022.1−1855 (z = 0.689), 3FGL J0630.9−2406 (z >= 1.239), and 3FGL J0811.2−7529 (z = 0.774), detected by Fermi with relatively ...
    • Continued Swift/XRT Follow-up of the Fermi-LAT Galactic Plane Transient J0902-4624 

      Cheung, C. C.; Donato, D.; Hays, E.; Ojha, R.; Fermi-LAT collaboration (2012-03-21)
    • Continuing the MODIS Dark Target Aerosol Time Series with VIIRS 

      Sawyer, Virginia; Levy, Robert C.; Mattoo, Shana; Cureton, Geoff; Shi, Yingxi; Remer, Lorraine A. (MDPI, 2020-01-17)
      For reflected sunlight observed from space at visible and near-infrared wavelengths, particles suspended in Earth’s atmosphere provide contrast with vegetation or dark water at the surface. This is the physical motivation ...
    • Contribution of LARES and geodetic satellites on environmental monitoring 

      Pavlis, Erricos C.; Paolozzi, Antonio; Sindoni, Giampiero; Ciufolini, Ignazio (IEEE, 2015-06-10)
      LARES is the latest laser ranged geodetic satellite launched in orbit. It is an Italian Space Agency mission devoted mainly to test fundamental physics. However, it will be shown in the present paper that it will also ...
    • The contribution of LARES in future ITRF developments 

      Pavlis, Erricos C. (Lares Mission, 2012-09-17)
    • Contributions of Future SLR Networks to the Development of ITRF 

      Pavlis, Erricos C.; Kuźmicz-Cieślak, Magdalena; Hinkey, Peter (National Aeronautics and Space Administration, 2009-09-14)
    • Contributions to composite conductivity and Seebeck coefficient in commercial Bi₂Te₃—Conjugated polymer composites 

      Huang, Jiyuan; Li, Hui; Kirksey, Evan; Hoffman, Christina; Jang, Hyun-June; Wagner, Justine; Madan, Deepa; Katz, Howard E. (AIP Publishing, 2019-03-28)
      We demonstrated the use of as-received conjugated polymer P3HT [poly (3-hexylthiophene-2,5 diyl)] doped with F4TCNQ (2,3,5,6- tetrafluoro-7,7,8,8-tetracyanoquinodimethane) as a matrix for forming a composite with as-received, ...
    • Controlling the speed and trajectory of evolution with counterdiabatic driving 

      Iram, Shamreen; Dolson, Emily; Chiel, Joshua; Pelesko, Julia; Krishnan, Nikhil; Güngör, Özenç; Kuznets-Speck, Benjamin; Deffner, Sebastian; Ilker, Efe; Scott, Jacob G.; Hinczewski, Michael (Cold Spring Harbor Laboratory (CHS), 2020-06-04)
      The pace and unpredictability of evolution are critically relevant in a variety of modern challenges: combating drug resistance in pathogens and cancer, understanding how species respond to environmental perturbations like ...