Browsing University of Hertfordshire by Author "Chrysostomou, A."

Now showing items 21-40 of 95

    • Grain alignment in dense interstellar environments : spectropolarimetry of the 4.67-m CO-ice feature in the field star Elias 16 (Taurus dark cloud) 

      Hough, J.; Aitken, D.; Whittet, D.C.B.; Adamson, A.J.; Chrysostomou, A. (2008)
      We present spectropolarimetry of the solid CO feature at 4.67 μm along the line of sight to Elias 16, a field star background to the Taurus dark cloud. A clear increase in polarization is observed across the feature with ...

    • 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 ...

    • He i 1.083 um Emission and Absorption in DG Tauri: Line Excitations in the Jet, Hot Wind, and Accretion Flow 

      Takami, M.; Chrysostomou, A.; Bailey, J.; Gledhill, T.; Tamura, M.; Terada, H. (2002-03)

    • Hi-GAL: The Herschel Infrared Galactic Plane Survey 

      Molinari, S.; Swinyard, B.; Bally, J.; Barlow, M.; Bernard, J.P.; Martin, P.; Moore, T.; Noriega-Crespo, A.; Plume, R.; Testi, L.; Zavagno, A.; Abergel, A.; Ali, B.; André, P.; Baluteau, J.-P.; Benedettini, M.; Berné, O.; Billot, N. P.; Blommaert, J.; Bontemps, S.; Boulanger, F.; Brand, J.; Brunt, C.; Burton, M.; Campeggio, L.; Carey, S.; Caselli, P.; Cesaroni, R.; Cernicharo, J.; Chakrabarti, S.; Chrysostomou, A.; Codella, C.; Cohen, M.; Compiegne, M.; Davis, C.J.; de Bernardis, P.; de Gasperis, G.; Di Francesco, J.; Di Giorgio, A. M.; Elia, D.; Faustini, F.; Fischera, J.F.; Fukui, Y.; Fuller, G.A.; Ganga, K.; Garcia-Lario, P.; Giard, M.; Giardino, G.; Glenn, J.; Goldsmith, P.; Griffin, M.; Hoare, M.; Huang, M.; Jiang, B.; Joblin, C.; Joncas, G.; Juvela, M.; Kirk, J.; Lagache, G.; Li, J.Z.; Lim, T.L.; Lord, S.D.; Lucas, P.W.; Maiolo, B.; Marengo, M.; Marshall, D.; Masi, S.; Massi, F.; Matsuura, M.; Meny, C.; Minier, V.; Miville-Deschênes, M.-A.; Montier, L.; Motte, F.; Müller, T.G.; Natoli, P.; Neves, J.; Olmi, L.; Paladini, R.; Paradis, D.; Pestalozzi, M.; Pezzuto, S.; Piacentini, F.; Pomarès, M.; Popescu, C. C.; Reach, W.T.; Richer, J.; Ristorcelli, I.; Roy, A.; Royer, P.; Russeil, D.; Saraceno, P.; Sauvage, M.; Schilke, P.; Schneider-Bontemps, N.; Schuller, F.; Schultz, B.; Shepherd, D.S.; Sibthorpe, B.; Smith, H.A.; Smith, M.D.; Spinoglio, L.; Stamatellos, D.; Strafella, F.; Stringfellow, G.; Sturm, E.; Taylor, R.; Thompson, M.A.; Tuffs, R. J.; Umana, G.; Valenziano, L.; Vavrek, R.; Viti, S.; Waelkens, C.; Ward-Thompson, D.; White, G.; Wyrowski, F.; Yorke, H.W.; Zhang, Q. (2010-03-01)
      Hi-GAL, the Herschel infrared Galactic Plane Survey, is an Open Time Key Project of the Herschel Space Observatory. It will make an unbiased photometric survey of the inner Galactic plane by mapping a 2° wide strip in the ...

    • High Circular Polarization in the Star Forming Region NGC 6334: Implications 

      Menard, F.; Chrysostomou, A.; Gledhill, T.; Hough, J.; Bailey, J. (Astronomical Society of the Pacific, 2000)
      The amino-acids which form the building blocks of biological proteins are all left-handed molecules. By contrast, when these molecules are made in the laboratory equal numbers of the right and left-handed versions are made. ...

    • 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 ...

    • HL Tau: 3-D Polarisation Modelling and Magnetic Field Structure 

      Lucas, P.W.; Fukagawa, M.; Tamura, M.; Chrysostomou, A.; Beckford, A. (Astronomical Society of the Pacific, 2005)
      We describe 3-dimensional Monte Carlo modelling of HL Tau in the near infrared with aligned non-spherical grains. JHK linear polarimetry with 0.4-0.6 arcsec resolution from Subaru and UKIRT is fitted in detail, providing ...

    • Hα and Hel emission in the jets of pre-main sequence stars : implications for the heating mechanisms 

      Takami, M.; Chrysostomou, A.; Bailey, J.; Gledhill, T.; Tamura, M.; Terada, H. (2003)
      Jets and winds in pre-main sequence (PMS) stars are often heated and ionized, and understanding their heating mechanism is desired to compare UV-to-IR spectral signatures with models and thus investigate their driving ...

    • Identification of the exciting source of Herbig-Haro objects 135 and 136 

      Tamura, M.; Hough, J.; Chrysostomou, A.; Itoh, Y.; Murakawa, K.; Bailey, J. (1997)
      We have identified the exciting source of the Herbig-Haro objects HH135 and 136 by near-infrared polarimetric imaging of the associated extensive reflection nebula. The source is situated at the middle of the two Herbig-Haro ...

    • Imaging Linear Polarimetry of Proto-planetary Nebulae: the Origins of Asymmetry 

      Gledhill, T.; Yates, J.A.; Chrysostomou, A. (Astronomical Society of the Pacific, 2000)
      It now seems likely that asymmetries in the circumstellar envelope (CSE) of intermediate mass stars develop during the latter stages of mass outflow as a star approaches the tip of the AGB. These asymmetries in the CSE ...

    • Infrared dark cloud cores in the SCUBA Legacy Catalogue 

      Parsons, H.; Thompson, M.A.; Chrysostomou, A. (2009)
      We present an investigation of candidate infrared dark cloud (IRDC) cores as identified by Simon et al. located within the Submillimetre Common User Bolometer Array (SCUBA) Legacy Catalogue. After applying a uniform noise ...

    • Investigating the transport of angular momentum from young stellar objects : do H2 jets from Class I YSOs rotate 

      Chrysostomou, A.; Bacciotti, F.; Nisini, B.; Ray, T.P.; Eisloffel, J.; Davis, C.J.; Takami, M. (2008)
      In this pilot study, we examine molecular jets from the embedded Class I sources, HH26 and HH72, to search, for the first time, for kinematic signatures of jet rotation from young embedded sources

    • IR Imaging Polarimetry of the Nuclear Regions of CEN A 

      Bailey, J.; Hough, J.; Chrysostomou, A. (Astronomical Society of the Pacific, 1994)
      Aperture polarimetry of the nucleus of Cen A (Bailey et al. 1986) revealed a very red polarized source present in the K and L bands which was interpreted as a blazar type nucleus. To study this region in more detail we ...

    • IRDC cores in SCUBA Legacy Catalogue (Parsons+, 2009) 

      Parsons, H.; Thompson, M.A.; Chrysostomou, A. (2011-08-01)

    • The James Clerk Maxwell Telescope Legacy Survey of Nearby Star-forming Regions in the Gould Belt 

      Ward-Thompson, D.; Di Francesco, J.; Hatchell, J.; Hogerheijde, M.R.; Nutter, D.; Bastien, P.; Basu, S.; Bonnell, I.; Bowey, J.; Brunt, C.; Buckle, J.; Butner, H.; Cavanagh, B.; Chrysostomou, A. (2007)
      This paper describes a James Clerk Maxwell Telescope (JCMT) legacy survey that has been awarded roughly 500 hr of observing time to be carried out from 2007 to 2009. In this survey, we will map with SCUBA-2 (Submillimetre ...

    • The JCMT Gould Belt survey : Evidence for radiative heating in serpens MWC 297 and its influence on local star formation 

      Rumble, D.; Hatchell, J.; Gutermuth, R. A.; Kirk, H.; Buckle, J.; Beaulieu, S. F.; Berry, D.S.; Broekhoven-Fiene, H.; Currie, M. J.; Fich, M.; Jenness, T.; Johnstone, D.; Mottram, J. C.; Nutter, D.; Pattle, K.; Pineda, J. E.; Quinn, C.; Salji, C.; Tisi, S.; Walker-Smith, S.; Di Francesco, J.; Hogerheijde, M.R.; Ward-Thompson, D.; Allen, L.E.; Cieza, L. A.; Dunham, M. M.; Harvey, P. M.; Stapelfeldt, K. R.; Bastien, P.; Butner, H.; Chen, M.; Chrysostomou, A.; Coude, S.; Davis, C.J.; Drabek-Maunder, E.; Duarte-Cabral, A.; Fiege, J.; Friberg, P.; Friesen, R.; Fuller, G.A.; Graves, S.; Greaves, J.; Gregson, J.; Holland, W.; Joncas, G.; Kirk, J.M.; Knee, L. B. G.; Mairs, S.; Marsh, K.; Matthews, B. C.; Moriarty-Schieven, G.; Rawlings, J.; Richer, J.; Robertson, D.; Rosolowsky, E.; Sadavoy, S.; Thomas, H.; Tothill, N.; Viti, S.; White, G.J.; Wilson, C. D.; Wouterloot, J.; Yates, J.; Zhu, M. (2015-04-01)
      We present SCUBA-2 450 and 850 μm observations of the Serpens MWC 297 region, part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey of nearby star-forming regions. Simulations suggest that radiative feedback ...

    • The JCMT Legacy Survey of the Gould Belt : a first look at Taurus with HARP 

      Davis, C.J.; Chrysostomou, A.; Hatchell, J.; Wouterloot, J. G. A.; Buckle, J. V.; Nutter, D.; Fich, M.; Brunt, C.; Butner, H.; Cavanagh, B.; Curtis, E.I.; Duarte-Cabral, A.; Di Francesco, J.; Etxaluze, M.; Friberg, P.; Johnstone, D.; Matthews, B.; Matthews, H.; Rawlings, J.M.C.; Richer, J. S.; Roberts, J.; Sadavoy, S.; Simpson, R.J.; Tothill, N.F.H.; Tsamis, Y.G.; Viti, S.; Ward-Thompson, D.; White, G.J.; Yates, J. (2010)
      As part of a James Clerk Maxwell Telescope (JCMT) Legacy Survey of star formation in the Gould Belt, we present early science results for Taurus. CO J= 3 –2 maps have been secured along the north-west ridge and bowl, ...

    • The JCMT Legacy Survey of the Gould Belt : mapping 13CO and C18O in Orion A 

      Buckle, J. V.; Davis, C.J.; Di Francesco, J.; Graves, S. F.; Nutter, D.; Richer, J. S.; Roberts, J. F.; Ward-Thompson, D.; White, G.J.; Brunt, C.; Butner, H. M.; Cavanagh, B.; Chrysostomou, A.; Curtis, E.I.; Duarte-Cabral, A.; Etxaluze, M.; Fich, M.; Friberg, P.; Friesen, R.; Fuller, G.A.; Greaves, J.S.; Hatchell, J.; Hogerheijde, M.R.; Johnstone, D.; Matthews, B.; Matthews, H.; Rawlings, J.M.C.; Sadavoy, S.; Simpson, R.J.; Tothill, N.F.H.; Tsamis, Y.G.; Viti, S.; Wouterloot, J. G. A.; Yates, J. (2012-05)
      The Gould Belt Legacy Survey will map star-forming regions within 500 pc, using Heterodyne Array Receiver Programme (HARP), Submillimetre Common-User Bolometer Array 2 (SCUBA-2) and Polarimeter 2 (POL-2) on the James Clerk ...

    • The JCMT Legacy Survey of the Gould Belt: a first look at Orion B with HARP 

      Buckle, J.; Curtis, E.I.; Roberts, J.F.; White, G.J.; Hatchell, J.; Brunt, C.; Butner, H.; Cavanagh, B.; Chrysostomou, A.; Davis, C.J.; Duarte-Cabral, A.; Etxaluze, M.; Di Francesco, J.; Friberg, P.; Friesen, R.; Fuller, G.A.; Graves, S.; Greaves, J.S.; Hogerheijde, M.R.; Johnstone, D.; Matthews, B.; Matthews, H.; Nutter, D.; Rawlings, J.M.C.; Richer, J.; Sadavoy, S.; Simpson, R.J.; Tothill, N.F.H.; Tsamis, Y.G.; Viti, S.; Ward-Thompson, D.; Wouterloot, J.; Yates, J.A. (2010)
      The Gould Belt Legacy Survey will survey nearby star-forming regions (within 500 pc), using Heterodyne Array Receiver Programme (HARP), Submillimetre Common-User Bolometer Array 2 and Polarimeter 2 on the James Clerk Maxwell ...

    • The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP 

      Graves, S. F.; Richer, J. S.; Buckle, J. V.; Duarte-Cabral, A.; Fuller, G. A.; Hogerheijde, M. R.; Owen, J. E.; Brunt, C.; Butner, H. M.; Cavanagh, B.; Chrysostomou, A.; Curtis, E. I.; Davis, C. J.; Etxaluze, M.; Di Francesco, J.; Friberg, P.; Friesen, R. K.; Greaves, J. S.; Hatchell, J.; Johnstone, D.; Matthews, B.; Matthews, H.; Matzner, C. D.; Nutter, D.; Rawlings, J. M. C.; Roberts, J. F.; Sadavoy, S.; Simpson, R. J.; Tothill, N. F. H.; Tsamis, Y. G.; Viti, S.; Ward-Thompson, D.; White, G. J.; Wouterloot, J. G. A.; Yates, J. (2010-12-21)
      The Gould Belt Legacy Survey on the James Clerk Maxwell Telescope's has observed a region of 260 arcmin2 in 12CO J = 3 -> 2 emission, and a 190 arcmin2 subset of this in 13CO and C18O towards the Serpens molecular cloud. ...