R
Riccardo Giacconi
Researcher at Johns Hopkins University
Publications - 244
Citations - 16452
Riccardo Giacconi is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 63, co-authored 244 publications receiving 16022 citations. Previous affiliations of Riccardo Giacconi include Associated Universities, Inc. & European Southern Observatory.
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Journal ArticleDOI
Evidence for x Rays From Sources Outside the Solar System
TL;DR: In this article, data from an Aerobee rocket carrying three large-area geiger counters have revealed a considerable flux of radiation in the night sky and the bulk of the radiation is soft x rays from sources outside the solar system.
Journal ArticleDOI
Chandra Deep Field South: The 1 Ms Catalog
Riccardo Giacconi,Riccardo Giacconi,Andrew Zirm,Junxian Wang,Piero Rosati,Mario Nonino,Paolo Tozzi,Roberto Gilli,Vincenzo Mainieri,Vincenzo Mainieri,Guenther Hasinger,Lisa J. Kewley,Jacqueline Bergeron,Stefano Borgani,Roberto Gilmozzi,Norman A. Grogin,Anton M. Koekemoer,Ethan J. Schreier,Wei Zheng,Colin Norman,Colin Norman +20 more
TL;DR: In this paper, the authors presented the source catalog obtained from a 942 ks exposure of the Chandra Deep Field South (CDFS), using the Advanced CCD Imaging Spectrometer (ACIS-I) on the Chandra X-ray Observatory.
Journal ArticleDOI
The Chandra Deep Field-South: Optical Spectroscopy. I.*
Gyula P. Szokoly,Jacqueline Bergeron,Günther Hasinger,Ingo Lehmann,Lisa J. Kewley,Lisa J. Kewley,Vincenzo Mainieri,Mario Nonino,Piero Rosati,Riccardo Giacconi,Roberto Gilli,Roberto Gilmozzi,Colin Norman,M. Romaniello,E. J. Schreier,E. J. Schreier,Paolo Tozzi,Junxian Wang,W. Zheng,Andrew Zirm +19 more
TL;DR: In this article, the results of a spectroscopic follow-up program of the X-ray sources detected in the 942 ks exposure of the Chandra Deep Field-South (CDFS) were presented.
Journal ArticleDOI
The Chandra Deep Field South: the 1 Million Second
Piero Rosati,Paolo Tozzi,Riccardo Giacconi,Roberto Gilli,Guenther Hasinger,Lisa J. Kewley,Vincenzo Mainieri,Mario Nonino,Colin Norman,Gyula P. Szokoly,Jun Xian Wang,Andrew Zirm,Jacqueline Bergeron,Stefano Borgani,Roberto Gilmozzi,Norman A. Grogin,Anton M. Koekemoer,Ethan J. Schreier,W. Zheng +18 more
TL;DR: Giacconi et al. as mentioned in this paper extended the measurement of source number counts to 5.5e-17 erg/cm^2/s in the soft 0.5-2 keV band and 4.5 e-16 erg/ cm^2
Journal ArticleDOI
The Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey. I. X-Ray Properties of Clusters Detected as Extended X-Ray Sources*
Hans Böhringer,Wolfgang Voges,John P. Huchra,Brian McLean,Riccardo Giacconi,Piero Rosati,R. Burg,J. Mader,Peter Schuecker,D. Simic,Stefanie Komossa,Thomas H. Reiprich,J. Retzlaff,Joachim Trümper +13 more
TL;DR: In this article, the authors used a new X-ray source characterization technique, termed growth curve analysis (GCA), to provide more precise values for the Xray flux and source extent than obtained from the standard processing.