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

The JCMT Legacy Survey: The Challenges of the JCMT Science Archive

Economou, F.; Jenness, T.; Chrysostomou, A.; Cavanagh, B.; Redman, R.; Berry, D.S. (Astronomical Society of the Pacific, 2008)

The JCMT Legacy Survey (JLS) is an ambitious programme that will provide the first large-scale survey of the submillimetre sky. From planetary science through to cosmology, the first phase of the campaign will be using the ...

The JCMT Plane Survey : First complete data release - emission maps and compact source catalogue

Eden, D.~J.; Moore, T. J. T.; Plume, R.; Urquhart, J.S.; Thompson, M. A.; Parsons, H.; Dempsey, J. T.; Rigby, A.~J.; Morgan, L. K.; Thomas, H. S.; Berry, D J; Buckle, J.; Brunt, Christopher M.; Butner, H. M.; Carretero, D.; Chrysostomou, A.; Currie, M. J.; deVilliers, H.~M.; Fich, M.; Gibb, A. G.; Hoare, M.G.; Jenness, T.; Manser, G.; Mottram, J.~C.; Natario, C.; Olguin, F.; Peretto, N.; Pestalozzi, M.; Polychroni, D.; Redman, R.~O.; Salji, C.; Summers, L.~J.; Tahani, K.; Traficante, A.; diFrancesco, J.; Evans, A.; Fuller, G. A.; Johnstone, D.; Joncas, G.; Longmore, S.~N.; Martin, Gary P; Richer, J. S.; Weferling, B.; White, Glenn J.; Zhu, M. (2017-08-01)

We present the first data release of the James Clerk Maxwell Telescope (JCMT) Plane Survey (JPS), the JPS Public Release 1 (JPSPR1). JPS is an 850-um continuum survey of six fields in the northern inner Galactic Plane in ...

The JCMT Plane Survey: early results from the ell = 30deg field

Moore, T.~J.~T.; Plume, R.; Thompson, M.~A.; Parsons, H.; Urquhart, J.~S.; Eden, D.~J.; Dempsey, J.~T.; Morgan, L.~K.; Thomas, H.~S.; Buckle, J.; Brunt, C.~M.; Butner, H.; Carretero, D.; Chrysostomou, A.; deVilliers, H.~M.; Fich, M.; Hoare, M.~G.; Manser, G.; Mottram, J.~C.; Natario, C.; Olguin, F.; Peretto, N.; Polychroni, D.; Redman, R.~O.; Rigby, A.~J.; Salji, C.; Summers, L.~J.; Berry, D.; Currie, M.~J.; Jenness, T.; Pestalozzi, M.; Traficante, A.; Bastien, P.; diFrancesco, J.; Davis, C.~J.; Evans, A.; Friberg, P.; Fuller, G.~A.; Gibb, A.~G.; Gibson, S.; Hill, T.; Johnstone, D.; Joncas, G.; Longmore, S.~N.; Lumsden, S.~L.; Martin, P.~G.; Lu'o'ng, Q.~N.; Pineda, J.~E.; Purcell, C.; Richer, J.~S.; Schieven, G.~H.; Shipman, R.; Spaans, M.; Taylor, A.~R.; Viti, S.; Weferling, B.; White, G.~J.; Zhu, M. (2015-11-11)

We present early results from the JCMT (James Clerk Maxwell Telescope) Plane Survey (JPS), which has surveyed the northern inner Galactic plane between longitudes ℓ = 7° and ℓ = 63° in the 850-μm continuum with SCUBA-2 ...

The magnetic environments of young stellar objects

Chrysostomou, A.; Curran, R.; Aitken, D. (2004)

We report on early results of submillimetre polarimetric measurements towards a sample of young stellar objects. The results allow us to infer the magnetic field structure and show a variety of configurations, providing ...

The magnetic field structure in W51A

Chrysostomou, A.; Aitken, D.; Jenness, T.; Davis, C.J.; Hough, J.; Curran, R.; Tamura, M. (2002-04)

The magnetic field structure of the DR21 region

Itoh, Y.; Chrysostomou, A.; Burton, M.; Hough, J.; Tamura, M. (1999)

We present results of imaging polarimetry of the H2 v=1--0 S(1) line towards the outflow lobes of DR21. The polarization vectors are produced by dichroic absorption in a medium of aligned grains and therefore delineate the ...

Magnetic fields in massive star-forming regions

Curran, R.; Chrysostomou, A. (2007-12-01)

We present the largest sample of high-mass star-forming regions observed using sub- millimetre imaging polarimetry. The data were taken using SCUBA in conjunction with the polarimeter on the JCMT in Hawaii. In total, 16 ...

Magnetic Fields in Star Forming Regions - Near-Infrared and Submillimeter Approaches

Tamura, M.; Hayashi, S.; Itoh, Y.; Hough, J.; Chrysostomou, A. (Astronomical Society of the Pacific, 1996)

In order to study the magnetic field structure in star forming regions on various scales, we have been conducting both near-infrared and submillimeter polarimetry toward nearby molecular clouds. The near-infrared approach ...

Methanol maser associated outflows : detection statistics and properties

De Villiers, H.M; Chrysostomou, A.; Thompson, Mark; Burton, Michael (2014-10-11)

We have selected the positions of 54 6.7 GHz methanol masers from the Methanol Multibeam Survey catalogue, covering a range of longitudes between 20° and 34° of the Galactic plane. These positions were mapped in the J = ...

Modeling New Spectropolarimetry Data for the BN Object

Messinger, D.W.; Roberge, W.G.; Whittet, D.C.B.; Chrysostomou, A.; Hough, J. (Astronomical Society of the Pacific, 1996)

New spectropolarimetry data taken for the BN object include many previously unobserved features. Among these are a possible polarization reversal at the short wavelength end of the ice feature and a rotation in the position ...

Molecular clumps in the W51 giant molecular cloud

Parsons, H.; Thompson, M.A.; Clark, J.S.; Chrysostomou, A. (2012-08-01)

In this paper, we present a catalogue of dense molecular clumps located within the W51 giant molecular cloud (GMC). This work is based on Heterodyne Array Receiver Programme 13CO J = 3–2 observations of the W51 GMC and ...

The molecular gas content of the Pipe Nebula. I : Direct evidence of outflow-generated turbulence in B59?

Duarte-Cabral, A.; Chrysostomou, A.; Peretto, N.; Fuller, G.A.; Matthews, B.; Schieven, G.; Davis, G.R. (2012)

Context. Star forming regions may share many characteristics, but the specific interplay between gravity, magnetic fields, large-scale dynamics, and protostellar feedback will have an impact on the star formation history ...

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 ...

Molecular outflows toward methanol masers : detection techniques and their properties

de Villiers, H. M.; Thompson, M. A.; Chrysostomou, A.; van der Walt, D. J. (Cambridge University Press, 2012-07-01)

Class II methanol masers are thought to trace the brief phase in the evolution of a massive YSO, where outflows are expected to occur. Molecular line maps of the CO isotopes of a subset of 6.7 GHz sources from the MMB ...

A multi-epoch near-infrared study of the HH 7-11 protostellar outflow

Khanzadyan, T.; Smith, M.D.; Davis, C.J.; Gredel, R.; Stanke, T.; Chrysostomou, A. (2003)

We present near-infrared observations of the protostellar outflow HH 7–11 in the molecular hydrogen 1–0 S(1) and [Fe ii] 1.644-μm emission lines. Images at four epochs spread over 11 yr constrain the proper motions of the ...

Multibeam Maser Survey of methanol and excited OH in the Magellanic clouds: new detections and maser abundance estimates

Green, J.A.; Caswell, J.L.; Fuller, G.A.; Breen, S.L.; Brooks, K.; Burton, M.; Chrysostomou, A.; Cox, J.; Diamond, P.J.; Ellingsen, S.; Gray, M.D.; Hoare, M.G.; Masheder, M.R.W.; McClure-Griffiths, N.; Pestalozzi, M.; Phillips, C.; Quinn, L.; Thompson, M.A.; Voronkov, M.; Walsh, A.; Ward-Thompson, D.; Wong-McSweeney, D.; Yates, J.A.; Cohen, R.J. (2008)

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