dc.contributor.author | ESPEY, BRIAN RUSSELL | |
dc.date.accessioned | 2008-06-10T13:12:31Z | |
dc.date.available | 2008-06-10T13:12:31Z | |
dc.date.issued | 1995 | |
dc.date.submitted | 1995 | en |
dc.identifier.citation | Korista, K. T.; Alloin, D.; Barr, P.; Clavel, J.; Cohen, R. D.; Crenshaw, D. M.; Evans, I. N.; Horne, K.; Koratkar, A. P.; Kriss, G. A.; et. al. 'Steps toward determination of the size and structure of the broad-line region in active galatic nuclei. 8: an intensive HST, IUE, and ground-based study of NGC 5548' in Astrophysical Journal Supplement Series, 97, (2), 1995, pp. 285-330. | en |
dc.identifier.issn | 51377 | |
dc.identifier.other | Y | |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | We present the data and initial results from a combined Hubble Space Telescope (HST)/IUE/ground-based spectroscopic monitoring campaign on the Seyfert 1 galaxy NGC 5548 that was undertaken in order to address questions that require both higher temporal resolution and higher signal-to-noise ratios than were obtained in our previous multiwavelength monitoring of this galaxy in 1988-1989. IUE spectra were obtained once every 2 days for a period of 74 days beginning on 1993 March 14. During the last 39 days of this campaign, spectroscopic observations were also made with the HST Faint Object Spectrograph (FOS) on a daily basis. Ground-based observations, consisting of 165 optical spectra and 77 photometric observations (both CCD imaging and aperture photometry), are reported for the period 1992 October-1993 September, although many of the data are concentrated around the time of the satellite-based program. These data constitute a fifth year of intensive optical monitoring of this galaxy. In this contribution we describe the acquisition and reduction of all of the satellite and ground-based data obtained in this program. We describe in detail various photometric problems with the FOS and explain how we identified and corrected for various anomalies. | en |
dc.format.extent | 285-330 | en |
dc.format.extent | 6974101 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en |
dc.relation.ispartofseries | 97 | en |
dc.relation.ispartofseries | 2 | en |
dc.rights | Y | en |
dc.subject | Physics | en |
dc.title | Steps toward determination of the size and structure of the broad-line region in active galatic nuclei. 8: an intensive HST, IUE, and ground-based study of NGC 5548 | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/espeyb | |
dc.identifier.uri | http://hdl.handle.net/2262/17224 | |