Ohio Source Counts: Comments by Harris and Kraus
Jauncey and Niell1 point out that the flux densities of sources in the Ohio survey tend to be underestimated at low values of flux density. We have been aware of this from independent measurements by Dixon, Ehman, and others of the OSU Radio Observatory staff, made in 1969 with the NRAO 300 foot rad...
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| Veröffentlicht in: | Nature (London) Phys. Sci. 230: 140(5 Apr 1971) 1971-04, Vol.230 (14), p.140-140, Article 140 |
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| container_title | Nature (London) Phys. Sci. 230: 140(5 Apr 1971) |
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| creator | HARRIS, BEVERLEY J KRAUS, JOHN D |
| description | Jauncey and Niell1 point out that the flux densities of sources in the Ohio survey tend to be underestimated at low values of flux density. We have been aware of this from independent measurements by Dixon, Ehman, and others of the OSU Radio Observatory staff, made in 1969 with the NRAO 300 foot radio telescope at Green Bank. The principal cause of the underestimation was traced to an error in data reduction which affected certain sources. Corrections can be made for the individual sources affected. For many statistical purposes, however, a satisfactory correction is to increase the flux density of all sources with 0.16≤S415 |
| doi_str_mv | 10.1038/physci230140a0 |
| format | Article |
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We have been aware of this from independent measurements by Dixon, Ehman, and others of the OSU Radio Observatory staff, made in 1969 with the NRAO 300 foot radio telescope at Green Bank. The principal cause of the underestimation was traced to an error in data reduction which affected certain sources. Corrections can be made for the individual sources affected. For many statistical purposes, however, a satisfactory correction is to increase the flux density of all sources with 0.16≤S415<0.5 flux units by 0.07 flux units for instalments II and III of the Ohio survey and by 0.03 flux units for instalment IV.</description><identifier>ISSN: 0300-8746</identifier><identifier>EISSN: 2058-1106</identifier><identifier>DOI: 10.1038/physci230140a0</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>COSMIC RADIO SOURCES ; COSMIC RADIO SOURCES/flux densities of, in Ohio survey, (E) ; DISTRIBUTION ; ERRORS ; letters-to-editor ; MICROWAVES ; N32130 -Physics-Astrophysics-Quasi-stellar, Radio & X- Ray Sources ; OHIO ; Physics ; Physics and Astronomy ; RADIOTELESCOPES</subject><ispartof>Nature (London) Phys. 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For many statistical purposes, however, a satisfactory correction is to increase the flux density of all sources with 0.16≤S415<0.5 flux units by 0.07 flux units for instalments II and III of the Ohio survey and by 0.03 flux units for instalment IV.</description><subject>COSMIC RADIO SOURCES</subject><subject>COSMIC RADIO SOURCES/flux densities of, in Ohio survey, (E)</subject><subject>DISTRIBUTION</subject><subject>ERRORS</subject><subject>letters-to-editor</subject><subject>MICROWAVES</subject><subject>N32130 -Physics-Astrophysics-Quasi-stellar, Radio & X- Ray Sources</subject><subject>OHIO</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>RADIOTELESCOPES</subject><issn>0300-8746</issn><issn>2058-1106</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1971</creationdate><recordtype>article</recordtype><recordid>eNp1kEFLAzEUhIMoWKtXz4t43fal2SS73qSoFQs9qOflJZu1KW22JNlD_72RFcFCT_MO8w1vhpBbChMKrJzu14eg7YwBLQDhjIxmwMucUhDnZAQMIC9lIS7JVQgbAM4kFSMCq7Xtsveu99pk8653MTwk3e1MujJ1yBbovQ0ZuiZ789iHa3LR4jaYm18dk8_np4_5Il-uXl7nj8tcM-AxF7ykWAmKyFBpzqWkRuhKa8oUlYViqEVbVYxThY1kijMtFDVNw9pKtm3BxuRuyO1CtHUqFo1e6845o2NdgEh9ZDJNBpP2XQjetPXe2x36Q02h_hml_j9KAoojIAVjtJ2LHu32NDYdsJDy3Zfx9SYt5lL_08T9QDiMvTd_fx3ZvgGm04Nu</recordid><startdate>19710405</startdate><enddate>19710405</enddate><creator>HARRIS, BEVERLEY J</creator><creator>KRAUS, JOHN D</creator><general>Nature Publishing Group UK</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19710405</creationdate><title>Ohio Source Counts: Comments by Harris and Kraus</title><author>HARRIS, BEVERLEY J ; KRAUS, JOHN D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c305t-6581a961aa3abc55771e6c9cc13b174b3ac6f99351bad73b53c6b1edd3f97ff43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1971</creationdate><topic>COSMIC RADIO SOURCES</topic><topic>COSMIC RADIO SOURCES/flux densities of, in Ohio survey, (E)</topic><topic>DISTRIBUTION</topic><topic>ERRORS</topic><topic>letters-to-editor</topic><topic>MICROWAVES</topic><topic>N32130 -Physics-Astrophysics-Quasi-stellar, Radio & X- Ray Sources</topic><topic>OHIO</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>RADIOTELESCOPES</topic><toplevel>online_resources</toplevel><creatorcontrib>HARRIS, BEVERLEY J</creatorcontrib><creatorcontrib>KRAUS, JOHN D</creatorcontrib><creatorcontrib>Ohio State Univ., Columbus</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Nature (London) Phys. 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We have been aware of this from independent measurements by Dixon, Ehman, and others of the OSU Radio Observatory staff, made in 1969 with the NRAO 300 foot radio telescope at Green Bank. The principal cause of the underestimation was traced to an error in data reduction which affected certain sources. Corrections can be made for the individual sources affected. For many statistical purposes, however, a satisfactory correction is to increase the flux density of all sources with 0.16≤S415<0.5 flux units by 0.07 flux units for instalments II and III of the Ohio survey and by 0.03 flux units for instalment IV.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><doi>10.1038/physci230140a0</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | COSMIC RADIO SOURCES COSMIC RADIO SOURCES/flux densities of, in Ohio survey, (E) DISTRIBUTION ERRORS letters-to-editor MICROWAVES N32130 -Physics-Astrophysics-Quasi-stellar, Radio & X- Ray Sources OHIO Physics Physics and Astronomy RADIOTELESCOPES |
| title | Ohio Source Counts: Comments by Harris and Kraus |
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