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SILICON MONOXIDE IN SUPERNOVA SN1987-A

IAU SYMPOSIA (1992) 371-372

Authors:

CH SMITH, DK AITKEN, PF ROCHE
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SPATIAL CORRELATIONS IN A REDSHIFT SURVEY OF APM GALAXY CLUSTERS

ASTROPHYSICAL JOURNAL 390:1 (1992) L1-L4

Authors:

GB DALTON, G EFSTATHIOU, SJ MADDOX, WJ SUTHERLAND
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THE CORRELATION-FUNCTION OF RICH CLUSTERS OF GALAXIES - A COMPARISON OF APM AND ABELL CLUSTERS

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 257:1 (1992) 125-134

Authors:

G EFSTATHIOU, GB DALTON, WJ SUTHERLAND, SJ MADDOX
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The APM Cluster Redshift Survey

Chapter in Digitised Optical Sky Surveys, Springer Nature 174 (1992) 313-321

Authors:

SJ Maddox, GB Dalton, G Efstathiou, WJ Sutherland
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Multifrequency observations of BL Lacertae in 1988

Astrophysical Journal 382:2 (1991) 508-514

Authors:

N Kawai, M Matsuoka, JN Bregman, HD Aller, MF Aller, PA Hughes, SA Balbus, TJ Balonek, KC Chambers, RES Clegg, SD Clements, RJ Leacock, AG Smith, JS Miller, M Hereld, MG Hoare, VA Hughes, GK Miley, GH Moriarty-Schieven, K Matthews, G Neugebauer, T Ohashi, PF Roche, HA Thronson, E Valtaoja, H Terasranta, JR Webb, R Goodrich, BJ Wills, D Wills

Abstract:

Simultaneous multiwavelength observations of BL Lacertae were performed on two occasions separated by 1 month in 1988 June and July, covering the radio, submillimeter, infrared, optical, ultraviolet, and X-ray wave bands. In the wide-band photon spectra, the X-ray flux lies clearly above the extension of radio-ultraviolet continuum as expected. The slope of the X-ray spectra is significantly flatter than that at optical-ultraviolet regimes, and its spectral index 0.7-1.0 corresponds to the slope at submillimeter band. Comparison with earlier observations, in fact, indicates that the X-ray flux is correlated with the submillimeter band, an not with the others, and supports the SSC model.
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