Zobrazeno 1 - 10
of 27
pro vyhledávání: '"R. H. Lang"'
Autor:
M. S. Salama, R. Van der Velde, H. J. van der Woerd, J. C. Kromkamp, C. J. M. Philippart, A. T. Joseph, P. E. O'Neill, R. H. Lang, T. Gish, P. J. Werdell, Z. Su
Publikováno v:
Biogeosciences, Vol 9, Iss 6, Pp 2195-2201 (2012)
We present a method to calibrate and validate observational models that interrelate remotely sensed energy fluxes to geophysical variables of land and water surfaces. Coincident sets of remote sensing observation of visible and microwave radiations a
Externí odkaz:
https://doaj.org/article/80488c206c294fb09e3a9880ec99c1af
Autor:
Christine Jordan, K. Wolfinger, Robert F. Minchin, R. H. Lang, Virginia A. Kilborn, Baerbel Koribalski, M. J. Disney, P. J. Boyce
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 428:1790-1817
We have conducted the first blind HI survey covering 480 deg^2 and a heliocentric velocity range from 300-1900 km/s to investigate the HI content of the nearby spiral-rich Ursa Major region and to look for previously uncatalogued gas-rich objects. He
Autor:
Michael John Disney, R. H. Lang, Christine Jordan, Sabina Sabatini, S. Roberts, Virginia A. Kilborn, Jonathan Ivor Davies, P. J. Boyce, Wim van Driel, Robert F. Minchin, D. A. Garcia
Publikováno v:
The Astrophysical Journal. 622:L21-L24
VIRGOHI21 is an HI source detected in the Virgo Cluster survey of Davies et al. (2004) which has a neutral hydrogen mass of 10^8 M_solar and a velocity width of Delta V_20 = 220 km/s. From the Tully-Fisher relation, a galaxy with this velocity width
Autor:
R. H. Lang, S.M. Roberts, Virginia A. Kilborn, S. Linder, S. Sabatini, M. J. Disney, P. J. Boyce, Randall B. Smith, Jonathan Ivor Davies, Maarten Baes, W. van Driel, Robert F. Minchin, Rh. Evans, W. J. G. de Blok
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 349:922-932
We have carried out a fully sampled large area ($4^{\circ} \times 8^{\circ}$) 21cm \HI line survey of part of the Virgo cluster using the Jodrell Bank multi-beam instrument. The survey has a sensitivity some 3 times better than the standard HIJASS an
Publikováno v:
Astronomy & Astrophysics. 380:673-683
We present wide-eld neutral hydrogen (H i) Lovell telescope multibeam, and Dominion Radio Astrophysical Observatory H i synthesis observations, of the high velocity cloud (HVC) located in the general di- rection of the globular cluster M 92. This clo
Autor:
R. H. Lang, P. J. Boyce, Christine Jordan, Marco Grossi, Andrew Lyne, Ian Morison, Michael John Disney, Virginia A. Kilborn, Steven Phillipps, Robert F. Minchin, R. J. Cohen
Publikováno v:
The Astrophysical Journal. 560:L127-L130
Results are presented of the first blind HI survey of the M81 group of galaxies. The data were taken as part of the HI Jodrell All Sky Survey (HIJASS). The survey reveals several new aspects to the complex morphology of the HI distribution in the gro
Autor:
N. S. Chauhan, R. H. Lang
Publikováno v:
International Journal of Remote Sensing. 20:2203-2220
Vegetation in the microwave regime can be modelled by replacing vegetation scattering elements (stems, leaflets, etc.) by their dielectric equivalents. Unlike most vegetation, the scattering elements in the alfalfa canopy are not independent of one a
Autor:
Peter O. Minott, R. H. Lang
Publikováno v:
Applied optics. 12(12)
The wave structure function associated with atmospheric turbulence is important in the effective design of telescopes for coherent optical receivers. This paper describes a method of measurement of the wave structure function by employing an already
Autor:
Christine Jordan, S. Roberts, Robert F. Minchin, Chris Impey, Jonathan Ivor Davies, Wim van Driel, Sabina Sabatini, P. J. Boyce, Andrew R. Marble, D. A. Garcia, Michael John Disney, Marco Grossi, R. H. Lang
Many observations indicate that dark matter dominates the extra-galactic Universe, yet no totally dark structure of galactic proportions has ever been convincingly identified. Previously we have suggested that VIRGOHI 21, a 21-cm source we found in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::091b833c2ffb406368bad289e8960f13
http://arxiv.org/abs/0706.1586
http://arxiv.org/abs/0706.1586
Autor:
Andrew R. Marble, W. van Driel, Chris Impey, Jonathan Ivor Davies, Robert F. Minchin, S. Roberts, S. Sabatini, D. A. Garcia, M. J. Disney, P. J. Boyce, R. H. Lang, Christine Jordan, Marco Grossi
Publikováno v:
ISLAND UNIVERSES ISBN: 9781402055720
Dark Matter supposedly dominates the extragalactic, yet no totally dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aef79010278a1837f962ec1e7b793a31
https://doi.org/10.1007/978-1-4020-5573-7_15
https://doi.org/10.1007/978-1-4020-5573-7_15