Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990733948> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W1990733948 abstract "During April 1976 a soft X-ray flux was detected with SAS 3 from the vicinity of 2A 1102+384. The average flux densities were 4.3 x 10 to the -11th and 14 x 10 to the -11th erg/sq cm per sec in the energy bands 0.1-0.28 keV and 1-6 keV, respectively. There is an indication of variability over about 0.5 day in the lowest energy band. An upper limit of 3 x 10 to the 20th H atoms per sq cm is found for the gas column density to the X-ray source. In May 1978, observations with the modulation collimators of SAS 3 yielded an accurate (40 arcsec error radius) position for the X-ray source (2-6 keV) at right ascension 11 h 1 m 39.7 s, declination + 38 deg 28 min 51 sec (equinox 1950). The earlier tentative identification by Ricketts et al. (1976) with the BL Lacertae object B2 1101+38 = Markarian 421 is thus confirmed." @default.
- W1990733948 created "2016-06-24" @default.
- W1990733948 creator A5009161216 @default.
- W1990733948 creator A5012688538 @default.
- W1990733948 creator A5072994901 @default.
- W1990733948 date "1979-01-01" @default.
- W1990733948 modified "2023-09-27" @default.
- W1990733948 title "Discovery of soft X-ray flux from 2A 1102+384 = Markarian 421" @default.
- W1990733948 doi "https://doi.org/10.1086/182868" @default.
- W1990733948 hasPublicationYear "1979" @default.
- W1990733948 type Work @default.
- W1990733948 sameAs 1990733948 @default.
- W1990733948 citedByCount "9" @default.
- W1990733948 crossrefType "journal-article" @default.
- W1990733948 hasAuthorship W1990733948A5009161216 @default.
- W1990733948 hasAuthorship W1990733948A5012688538 @default.
- W1990733948 hasAuthorship W1990733948A5072994901 @default.
- W1990733948 hasConcept C100752510 @default.
- W1990733948 hasConcept C111717503 @default.
- W1990733948 hasConcept C121332964 @default.
- W1990733948 hasConcept C122523270 @default.
- W1990733948 hasConcept C124200008 @default.
- W1990733948 hasConcept C1276947 @default.
- W1990733948 hasConcept C178635117 @default.
- W1990733948 hasConcept C191897082 @default.
- W1990733948 hasConcept C192562407 @default.
- W1990733948 hasConcept C38652104 @default.
- W1990733948 hasConcept C41008148 @default.
- W1990733948 hasConcept C43157870 @default.
- W1990733948 hasConcept C43481613 @default.
- W1990733948 hasConcept C44870925 @default.
- W1990733948 hasConcept C68709404 @default.
- W1990733948 hasConcept C7910260 @default.
- W1990733948 hasConcept C85033227 @default.
- W1990733948 hasConcept C98444146 @default.
- W1990733948 hasConceptScore W1990733948C100752510 @default.
- W1990733948 hasConceptScore W1990733948C111717503 @default.
- W1990733948 hasConceptScore W1990733948C121332964 @default.
- W1990733948 hasConceptScore W1990733948C122523270 @default.
- W1990733948 hasConceptScore W1990733948C124200008 @default.
- W1990733948 hasConceptScore W1990733948C1276947 @default.
- W1990733948 hasConceptScore W1990733948C178635117 @default.
- W1990733948 hasConceptScore W1990733948C191897082 @default.
- W1990733948 hasConceptScore W1990733948C192562407 @default.
- W1990733948 hasConceptScore W1990733948C38652104 @default.
- W1990733948 hasConceptScore W1990733948C41008148 @default.
- W1990733948 hasConceptScore W1990733948C43157870 @default.
- W1990733948 hasConceptScore W1990733948C43481613 @default.
- W1990733948 hasConceptScore W1990733948C44870925 @default.
- W1990733948 hasConceptScore W1990733948C68709404 @default.
- W1990733948 hasConceptScore W1990733948C7910260 @default.
- W1990733948 hasConceptScore W1990733948C85033227 @default.
- W1990733948 hasConceptScore W1990733948C98444146 @default.
- W1990733948 hasLocation W19907339481 @default.
- W1990733948 hasOpenAccess W1990733948 @default.
- W1990733948 hasPrimaryLocation W19907339481 @default.
- W1990733948 hasRelatedWork W1060210 @default.
- W1990733948 hasRelatedWork W120835243 @default.
- W1990733948 hasRelatedWork W1496122639 @default.
- W1990733948 hasRelatedWork W1631477721 @default.
- W1990733948 hasRelatedWork W1639647538 @default.
- W1990733948 hasRelatedWork W1646484640 @default.
- W1990733948 hasRelatedWork W1979994626 @default.
- W1990733948 hasRelatedWork W1980746369 @default.
- W1990733948 hasRelatedWork W2008108941 @default.
- W1990733948 hasRelatedWork W2010772029 @default.
- W1990733948 hasRelatedWork W2013512281 @default.
- W1990733948 hasRelatedWork W2048279901 @default.
- W1990733948 hasRelatedWork W2052272736 @default.
- W1990733948 hasRelatedWork W2061606112 @default.
- W1990733948 hasRelatedWork W2066811371 @default.
- W1990733948 hasRelatedWork W2072718108 @default.
- W1990733948 hasRelatedWork W2095264694 @default.
- W1990733948 hasRelatedWork W3015532656 @default.
- W1990733948 hasRelatedWork W3101620585 @default.
- W1990733948 hasRelatedWork W3185901195 @default.
- W1990733948 isParatext "false" @default.
- W1990733948 isRetracted "false" @default.
- W1990733948 magId "1990733948" @default.
- W1990733948 workType "article" @default.