Browsing University of Hertfordshire by Title

Now showing items 5517-5536 of 24109

    • Discovery of a Long-Lived, High Amplitude Dusty Infrared Transient 

      Britt, C. T.; Maccarone, T. J.; Green, J. D.; Jonker, P. G.; Hynes, R. I.; Torres, M. A. P.; Strader, J.; Chomiuk, L.; Salinas, R.; Lucas, P.; Pena, C. Contreras; Kurtev, R.; Heinke, C.; Smith, L.; Wright, N. J.; Johnson, C.; Steeghs, D.; Nelemans, G. (2016-08-11)
      We report the detection of an infrared selected transient which has lasted at least 5 years, first identified by a large mid-infrared and optical outburst from a faint X-ray source detected with the Chandra X-ray Observatory. ...

    • The discovery of a massive supercluster at z = 0.9 in the UKIDSS Deep eXtragalactic Survey 

      Swinbank, A.M.; Edge, A.C.; Smail, I.; Stott, J.P.; Bremer, M.; Sato, Y.; van Breukelen, C.; Jarvis, M.J.; Waddington, I.; Clewley, L.; Bergeron, J.; Cotter, G.; Dye, S.; Geach, James; Gonzalez-Solares, E.; Hirst, P.; Ivison, R.J.; Rawlings, S.; Simpson, C.; Smith, G.P.; Verma, A.; Yamada, T. (2007)

    • Discovery of a mid-infrared protostellar outburst of exceptional amplitude 

      Lucas, P. W.; Elias, Jay; Points, Sean; Guo, Z.; Stecklum, B.; Vorobyov, E.; Morris, C.; Borissova, J.; Kurtev, R.; Pena, C. Contreras; Medina, N.; Minniti, D.; Ivanov, V. D.; Saito, R. K. (2020-09-23)
      We report the discovery of a mid-infrared outburst in a Young Stellar Object (YSO) with an amplitude close to 8 mag at lambda ~ 4.6 microns. WISEA J142238.82-611553.7 is one of 23 highly variable WISE sources discovered ...

    • Discovery of a multiply lensed submillimeter galaxy in early HerMES Herschel/SPIRE data 

      Conley, A.; Cooray, A.; Vieira, J.; Solares, E.A.G.; Kim, S.; Aguirre, J.E.; Amblard, A.; Auld, R.; Baker, A.J.; Beelen, A.; Blain, A.W.; Blundell, R.; Bock, J.; Bradford, C.M.; Bridge, C.; Brisbin, D.; Burgarella, D.; Carpenter, J.M.; Chanial, P.; Chapin, E.; Christopher, N.; Clements, D.; Cox, P.; Djorgovski, S.G.; Dowell, C.D.; Eales, S.; Earle, L.; Ellsworth-Bowers, T.P.; Farrah, D.; Franceschini, A.; Frayer, D.; Fu, H.; Gavazzi, R.; Glenn, J.; Griffin, M.; Gurwell, M.A.; Halpern, M.; Ibar, E.; Ivison, R.J.; Jarvis, M.J.; Kamenetzky, J.; Krips, M.; Levenson, L.; Lupu, R.; Mahabal, A.; Maloney, P.D.; Maraston, C.; Marchetti, L.; Marsden, G.; Matsuhara, H.; Mortier, A.M.J.; Murphy, E.; Naylor, B.J.; Neri, R.; Nguyen, H.T.; Oliver, S.; Omont, A.; Page, M.J.; Papageorgiou, A.; Pearson, C.; Perez-Fournon, I.; Pohlen, M.; Rangwala, N.; Rawlings, J.I.; Raymond, G.; Riechers, D.; Rodighiero, G.; Roseboom, I.G.; Rowan-Robinson, M.; Schulz, B.; Scott, D.; Scott, K.; Serra, P.; Seymour, N.; Shupe, D.; Smith, A.J.; Symeonidis, M.; Tugwell, K.E.; Vaccari, M.; Valiante, E.; Valtchanov, I.; Verma, A.; Viero, M.P.; Vigroux, L.; Wang, L.; Wiebe, D.; Wright, G.; Xu, C.K.; Zeimann, G.; Zemcov, M.; Zmuidzinas, J. (2011)
      We report the discovery of a bright (f (250 μm)>400 mJy), multiply lensed submillimeter galaxy HERMES J105751.1+573027 in Herschel/SPIRE Science Demonstration Phase data from the HerMES project. Interferometric 880 μm ...

    • Discovery of a nearby L-T transition object in the Southern Galactic plane 

      Folkes, S.; Pinfield, D.J.; Kendall, T.R.; Jones, H.R.A. (2007)

    • Discovery of a new nearby globular cluster with extreme kinematics located in the extension of a halo stream 

      Minniti, Dante; Fernández-Trincado, José G.; Gómez, Matías; Smith, Leigh C.; Lucas, Philip W.; Ramos, R. Contreras (2021-06-01)
      Context. We report the discovery of VVV-CL160, a new nearby globular cluster (GC) with extreme kinematics, located in the Galactic plane at l = 10.1477 deg, b = 0.2999 deg. Aims. We aim to characterize the physical properties ...

    • Discovery of a new soft gamma repeater: SGR J0418+5729 

      van der Horst, A.J.; Connaughton, V.; Kouveliotou, C.; Gogus, E.; Kaneko, Y.; Wachter, S.; Briggs, M.S.; Granot, J. (2010)
      On 2009 June 5, the Gamma-ray Burst Monitor (GBM) onboard the Fermi Gamma-ray Space Telescope triggered on two short and relatively dim bursts with spectral properties similar to soft gamma repeater (SGR) bursts. Independent ...

    • Discovery of a new Y dwarf: WISE J030449.03-270508.3 

      Pinfield, D.J.; Gromadzki, M.; Leggett, S.K.; Gomes, J.; Lodieu, N.; Kurtev, R.; Day-Jones, A. C.; Ruiz, M. T.; Cook, N. J.; Morley, C.V.; Marley, M. S.; Marocco, F.; Smart, R.L.; Jones, H.R.A.; Lucas, P.W.; Beletsky, Y.; Ivanov, V. D.; Burningham, B.; Jenkins, J. S.; Cardoso, C.; Frith, J.; Clarke, J. R. A.; Gálvez-Ortiz, M. C.; Zhang, Z. (2014-10-21)
      We present a new Y dwarf, WISE J030449.03−270508.3, confirmed from a candidate sample designed to pick out low-temperature objects from the Wide-field Infrared Survey Explorer (WISE) data base. The new object is typed Y0pec ...

    • Discovery of a peculiar DQ white dwarf 

      Carollo, D.; Hodgkin, S.T.; Spagna, A.; Smart, R.L.; Lattanzi, M.G.; McLean, B.J.; Pinfield, D.J. (2002)

    • Discovery of a precessing jet nozzle in BL Lacertae 

      Stirling, A.M.; Cawthorne, T.V.; Stevens, J. A.; Jorstad, S.G.; Marscher, A.P.; Lister, M.; Gomez, J-L.; Smith, P.S.; Agudo, I.; Gabuzda, D.; Robson, E.I.; Gear, W.K. (2003)

    • The discovery of a radio galaxy of at least 5 Mpc 

      Oei, Martijn S. S. L.; Weeren, Reinout J. van; Hardcastle, Martin J.; Botteon, Andrea; Shimwell, Tim W.; Dabhade, Pratik; Gast, Aivin R. D. J. G. I. B.; Röttgering, Huub J. A.; Brüggen, Marcus; Tasse, Cyril; Williams, Wendy L.; Shulevski, Aleksandar (2022-04-01)
      Context. Giant radio galaxies (GRGs, or colloquially giants) are the Universes largest structures generated by individual galaxies. They comprise synchrotron-radiating active galactic nucleus ejecta and attain cosmological ...

    • Discovery of a redshift 6.13 quasar in the UKIRT infrared deep sky survey 

      Mortlock, D.J.; Patel, M.; Warren, S.J.; Venemans, B.P.; McMahon, R.G.; Hewett, P.C.; Simpson, C.; Sharp, R.G.; Burningham, B.; Dye, S.; Ellis, S.; Gonzales-Solares, E.; Huelamo, N. (2009)
      Optical and near-infrared (NIR) spectra are presented for ULAS J131911.29+095051.4 (hereafter ULAS J1319+0950), a new redshift z = 6.127 0.004 quasar discovered in the Third Data Release (DR3) of the UKIRT Infrared Deep ...

    • Discovery of a T dwarf + white dwarf binary system 

      Day-Jones, Avril; Pinfield, D.J.; Ruiz, M.; Beaumont, H.; Burningham, B.; Gallardo, J.; Gianninas, A.; Bergeron, P.; Napiwotzki, Ralf; Jenkins, J.S.; Zhang, Z.H.; Murray, D.N.; Catalan, Silvia; Ines Gomes, Joana (2011)
      We present the discovery of the first T dwarf + white dwarf binary system LSPM 1459+0857 AB, confirmed through common proper motion and spectroscopy. The white dwarf is a high proper motion object from the LSPM catalogue ...

    • The discovery of a T6.5 subdwarf 

      Burningham, B.; Smith, Leigh; Cardoso, C. V.; Lucas, P.W.; Burgasser, A. J.; Jones, H.R.A.; Smart, R.L. (2014-05)
      We report the discovery of ULAS J131610.28+075553.0, an sdT6.5 dwarf in the UKIDSS Large Area Survey 2 epoch proper motion catalogue. This object displays significant spectral peculiarity, with the largest yet seen deviations ...

    • Discovery of a type-II quasar at z=1.65 with integral-field spectroscopy 

      Jarvis, M.J.; van Breukelen, C.; Wilman, R.J. (2005)

    • The discovery of a typical radio galaxy at z = 4.88 

      Jarvis, M.J.; Teimourian, H.; Simpson, C.; Smith, Daniel; Rawlings, S.; Bonfield, D. (2009)
      In this Letter, we report the discovery of a z= 4.88 radio galaxy discovered with a new technique which does not rely on pre-selection of a sample based on radio properties such as steep-spectral index or small angular ...

    • The discovery of a very cool binary system 

      Burningham, B.; Leggett, S.K.; Lucas, P.W.; Pinfield, D.J.; Smart, R.L.; Day-Jones, A.C.; Jones, H.R.A.; Murray, D.N.; Nickson, E.; Tamura, M.; Zhang, Z.; Lodieu, N.; Tinney, C.G.; Zapatero Osorio, M.R. (2010)
      We report the discovery of a very cool d/sdL7+T7.5p common proper motion binary system, SDSS J1416+13AB, found by cross-matching the United Kingdom Infrared Telescope (UKIRT) Infrared Deep Sky Survey (UKIDSS) Large Area ...

    • The discovery of a very cool, very nearby brown dwarf in the Galactic plane 

      Lucas, P.W.; Tinney, C. G.; Burningham, B.; Leggett, S. K.; Pinfield, D.J.; Smart, Richard; Jones, H.R.A.; Marocco, F.; Barber, Robert J.; Yurchenko, Sergei N.; Tennyson, Jonathan; Ishii, Miki; Tamura, Motohide; Day-Jones, Avril C.; Adamson, Andrew; Allard, France; Homeier, Derek (2010)
      We report the discovery of a very cool, isolated brown dwarf, UGPS 0722−05, with the United Kingdom Infrared Telescope Deep Sky Survey (UKIDSS) Galactic Plane Survey. The near-infrared spectrum displays deeper H2O and CH4 ...

    • Discovery of a very red nucleus in the radio elliptical IC5063 (PKS2048 − 57) 

      Axon, D.J.; Bailey, J.; Hough, J. (1982)

    • Discovery of a widely separated ultracool dwarf–white dwarf binary 

      Day-Jones, A.C.; Pinfield, D.J.; Napiwotzki, R.; Burningham, B.; Jenkins, J.S.; Jones, H.R.A.; Folkes, S.; Weights, D.; Clarke, J.R.A. (2008)