1,724,416 research outputs found
Shaw, Ian M, 7603
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/416315Surname: SHAW. Given Name(s) or Initials: IAN M. Military Service Number or Last Known Location: 7603. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 48776.238468
Item: [2016.0049.48576] "Shaw, Ian M, 7603
The field surrounding NGC 7603: Cosmological or non-cosmological redshifts?
No full textWe present new observations of the field surrounding the Seyfert galaxy NGC 7603,
where four galaxies with different redshifts – NGC 7603 (), NGC 7603B
() and two fainter emission line galaxies
( and ) – are apparently connected by a narrow filament,
leading to a possible case of anomalous redshift.
The observations comprise broad and narrow band imaging and intermediate
resolution spectroscopy of some of the objects in the field. The new data
confirm the redshift of the two emission-line objects found within
the filament connecting NGC 7603 and NGC 7603B, and settles their
type with better accuracy. Although both objects are point-like in ground based images, using
HST archive images we show that the objects have
structure with a FWHM = 0.3–0.4 arcsec. The photometry in the R-band obtained during three
different campaigns spread over two years does not show any signs of variability in
these objects above mag. All the above information and the relative
strength and width of the main spectral lines allow us to classify these as HII
galaxies with very vigorous star formation, while the rest of the filament
and NGC 7603B lack star formation.
We delineate the halo of NGC 7603 out to 26.2 mag/arcsec2 in the Sloan r band
filter and find evidence for strong internal distortions.
New narrow emission line galaxies at , 0.117 and 0.401
are also found at respectively 0.8, 1.5 and 1.7 arcmin to the West of the
filament within the fainter contour of this halo.
We have studied the spatial distribution of objects in the field within 1.5 arcmin of NGC 7603.
We conclude that the density of QSOs is roughly within the
expected value of the limiting magnitude
of our observations. However, the configuration of the four
galaxies apparently connected by the filament
appears highly unusual.
The probability of three background galaxies of any type with
apparent B-magnitudes up to 16.6, 21.1 and 22.1
(the observed magnitudes, extinction correction included) being randomly
projected on the filament of the fourth galaxy (NGC 7603)
is .
Furthermore, the possible detection of
very vigorous star formation observed in the HII galaxies of the filament
would have a low probability if they were background normal-giant galaxies;
instead, the intensity of the lines is typical of dwarf HII galaxies.
Hence, a set of coincidences with a very low probability
would be necessary to explain this as a fortuitous projection of background sources.
Several explanations in terms of cosmological or non-cosmological redshifts are discussed
California Poll: 7603 -- May 6-8, 1976
No full textThe Field Poll, established in 1945 as The California Poll by Mervin Field, has operated continuously as an independent, non-partisan, media-sponsored public opinion news service. Each year the Field Polls cover a wide range of political and social topics examining California public opinion. Continuing measures are made of voter support for leading political figures vying for major state and federal offices, job ratings of important political figures and reactions to significant political events. Voter awareness, understanding and predispositions of major campaign issues and salient statewide ballot propositions are also tracked over time. For poll 7603 N=1245
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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Full text linkpeer reviewedResponse to Krahner et al. (2025) Build the EU Pollinator Monitoring Scheme on robust evidence. Journal of Pollination Ecology 38(13): 183-185. https://doi.org/10.26786/1920-7603(2025)84615. Life on lan
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Strong spectral variability in NGC 7603 over 20 years
No full textWe present results of a long-term optical variability campaign on the Seyfert 1 galaxy NGC 7603 over a period of nearly 20 years. The optical continuum and the Balmer and Helium lines varied by a factor of 5 to 10 in this broad-line Seyfert 1 galaxy. Furthermore, it is remarkable that the optical FeII line blends varied with the same amplitude as the H alpha and HeI lines. During the first half of the campaign (until 1990) there was a strong correlation between Balmer decrement variations, H beta intensity variations and emission line asymmetry. This behaviour changed afterwards when the H beta line intensity was higher than on average
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