Browsing Research publications by Author "Brand, P.W.J.L."

Now showing items 1-8 of 8

    • H2 Spectroscopy in the Photodissociation Region of M17 Northern Bar 

      Chrysostomou, A.; Brand, P.W.J.L.; Burton, M. (Astronomical Society of the Pacific, 1993)
      We present results of long slit spectroscopy, from 2.0 to 2.5 microns, of the photodissociation region in the northern bar of M17. The observations give us an insight into the physical conditions in the region and provide ...

    • High Resolution Studies of Molecular Hydrogen by Means of Near-Infrared Fabry-Perot Imaging 

      Chrysostomou, A.; Burton, M.; Axon, D.J.; Brand, P.W.J.L.; Hough, J.; Bland-Hawthorn, J.; Geballe, T. (Astronomical Society of the Pacific, 1995)
      We present a study of the velocity profiles of the v=1-0 S(1) transition of molecular hydrogen (H2) towards the star forming region of OMC-1. A three dimensional data cube is presented which displays the spatial distribution ...

    • Molecular Hydrogen Emission from the Photodissociation Region in Hubble 12 

      Chrysostomou, A.; Brand, P.W.J.L.; Howat, S.K.R.; Burton, M. (Astronomical Society of the Pacific, 1998)
      Infrared spectra of molecular hydrogen (H2) line emission, from the photodissociation region in the planetary nebula Hubble 12, are presented. The spectra range between 0.7 and 2.5 um. Approximately 75 H2 lines were measured ...

    • Molecular Hydrogen Imaging of Star-Forming Regions 

      Howat, S.K.R.; Chrysostomou, A.; Burton, M.; Brand, P.W.J.L. (Astronomical Society of the Pacific, 2000)
      Observations of excited emission from molecular hydrogen have been used extensively for studies of star-forming regions for more than a decade. The characteristic response of the molecular gas to different excitation ...

    • Optical and infrared polarimetry and photometry of blazars 

      Mead, A.R.G.; Ballard, K.R.; Brand, P.W.J.L.; Hough, J.; Brindle, C.; Bailey, J. (1990)
      We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing ...

    • The optical and infrared-emission of blazars 

      Ballard, K.R.; Mead, A.R.G.; Brand, P.W.J.L.; Hough, J. (1990)
      A polarization study is presented of 44 blazars and candidate blazars observed at optical and near-IR frequencies. The spectrum of the radiation is discussed in terms of shock acceleration models. Frequency dependence is ...

    • The Physics of Shocked Outflows In Star Forming Molecular Clouds 

      Tedds, J.A.; Brand, P.W.J.L.; Burton, M.; Chrysostomou, A.; Fernandes, A.J.L. (Astronomical Society of the Pacific, 1994)
      Recent near-IR imaging of the Orion molecular cloud has revealed a complex of dense bullets, visible as [FeII] emitting HH-objects at the tips of H2 wakes, ejected explosively from the cloud core. Having resolved individual ...

    • Polarimetric observations of the quasar 3C-345 

      Mead, A.R.G.; Brand, P.W.J.L.; Hough, J.; Bailey, J. (1988)
      Infrared and optical polarimetric observations of the quasar 3C 345 are presented, which show a decrease in the degree of polarization with frequency previously observed by Smith et al., and interpreted by them as the ...