Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Aitken, D. K."'
Publikováno v:
Mon.Not.Roy.Astron.Soc.375:99-104,2007
Spectroscopy at 8-13 microns with T-ReCS on Gemini-S is presented for 3 galaxies with substantial silicate absorption features, NGC 3094, NGC 7172 and NGC 5506. In the galaxies with the deepest absorption bands, the silicate profile towards the nucle
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610583
Autor:
Roche, P. F., Packham, C., Telesco, C. M., Radomski, J. T., Alonso-Hererro, A., Aitken, D. K., Colina, L., Perlman, E.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 367 (2006) 1689-1698
High spatial resolution spectroscopy at 8-13microns with T-ReCS on Gemini-S has revealed striking variations in the mid-infrared emission and absorption in the nucleus of the Circinus galaxy on sub-arcsecond scales. The core of Circinus is compact an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601361
Publikováno v:
Mon.Not.Roy.Astron.Soc.366:491-498,2006
The 3.1 micron absorption feature of water-ice has been observed spectroscopically in many molecular clouds and, when it has been observed spectropolarimetrically, usually a corre- sponding polarization feature is seen. Typically on these occasions,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0511484
Publikováno v:
Astron.Astrophys. 421 (2004) 195-202
We present 850micron imaging polarimetry of two high-mass star forming regions - W48 and S152. Within these regions we have identified two candidate high-mass protostellar objects - W48W and S152SE. The submillimetre continuum emission from the candi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0405280
Autor:
Chrysostomou, A., Aitken, D. K., Jenness, T., Davis, C. J., Hough, J. H., Curran, R., Tamura, M.
We present 850 micron imaging polarimetry of the W51A massive star forming region performed with SCUBA on the JCMT. From the polarimetry we infer the column-averaged magnetic field direction, projected onto the plane of the sky. We find that the magn
Externí odkaz:
http://arxiv.org/abs/astro-ph/0201499
Publikováno v:
Mon.Not.Roy.Astron.Soc. 327 (2001) 744
A sample of 25 IR-bright planetary nebulae (PNe) towards the Galactic bulge is analysed through 8-13um spectroscopy. The classification of the warm-dust emission features provides a measure of the C/O chemical balance, and represents the first C/O es
Externí odkaz:
http://arxiv.org/abs/astro-ph/0105101
Publikováno v:
Mon.Not.Roy.Astron.Soc. 320 (2001) 424
We investigate the galactic disk distribution of a sample of planetary nebulae characterised in terms of their mid-infrared spectral features. The total number of galactic disk PNe with 8-13mum spectra is brought up to 74 with the inclusion of 24 new
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009399
Autor:
Aitken, D. K., Greaves, J. S., Chrysostomou, A., Holland, W. S., Hough, J. H., Pierce-Price, D., Richer, J. S.
We report the detection of linear polarization from SgrA* at 750, 850, 1350 and 2000 microns which confirms the contribution of synchrotron radiation. From the lack of polarization at longer wavelengths it appears to arise in the millimetre/sub-milli
Externí odkaz:
http://arxiv.org/abs/astro-ph/0003379
Autor:
Aitken, D. K., Hough, J. H.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2001 Oct . 113(788), 1300-1305.
Externí odkaz:
https://www.jstor.org/stable/10.1086/323356
Autor:
Hough, J. H., Chrysostomou, A., Messinger, D. W., Whittet, D. C. B., Aitken, D. K., Patrick Roche
Publikováno v:
Scopus-Elsevier
We present spectropolarimetry of the 3.1 μm water-ice feature in the Becklin-Neugebauer (BN) object in OMC-1, with spectral resolution and signal-to-noise ratios substantially improved over previous observations. The well-known increase in polarizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e75e76f398b0029d10fa0ed05ba74345
https://ora.ox.ac.uk/objects/uuid:e4e9ca17-b590-489e-811b-c2a01f980c41
https://ora.ox.ac.uk/objects/uuid:e4e9ca17-b590-489e-811b-c2a01f980c41