Electron–positron jets associated with the quasar 3C279 View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

1998-10

AUTHORS

J. F. C. Wardle, D. C. Homan, R. Ojha, D. H. Roberts

ABSTRACT

A long-standing question in extragalactic astrophysics is the composition of the relativistic jets of plasma that stream from the nuclei of quasars and active galaxies—do they consist of a ‘normal’ (electron–proton) plasma, or a ‘pair’ (electron–positron) plasma? Distinguishing between these possibilities is crucial for understanding the physical processes occurring close to the putative supermassive black holes that are believed responsible for the jets. Here we report the detection of circularly polarized radio emission from the jets of the archtypal quasar 3C279. The circular polarization is produced by Faraday conversion, which requires the energy distribution of the radiating particles to extend to very low energies, indicating that electron–positron pairs are an important component of the jet plasma. Similar detections in three other radio sources suggest that, in general, extragalactic radio jets are composed mainly of an electron–positron plasma. More... »

PAGES

457-461

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/26675

DOI

http://dx.doi.org/10.1038/26675

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016029083


Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
Incoming Citations Browse incoming citations for this publication using opencitations.net

JSON-LD is the canonical representation for SciGraph data.

TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

[
  {
    "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
    "about": [
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/02", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Physical Sciences", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0201", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Astronomical and Space Sciences", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0202", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Atomic, Molecular, Nuclear, Particle and Plasma Physics", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA", 
          "id": "http://www.grid.ac/institutes/grid.253264.4", 
          "name": [
            "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Wardle", 
        "givenName": "J. F. C.", 
        "id": "sg:person.014762163600.32", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014762163600.32"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA", 
          "id": "http://www.grid.ac/institutes/grid.253264.4", 
          "name": [
            "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Homan", 
        "givenName": "D. C.", 
        "id": "sg:person.010740147564.12", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010740147564.12"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA", 
          "id": "http://www.grid.ac/institutes/grid.253264.4", 
          "name": [
            "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Ojha", 
        "givenName": "R.", 
        "id": "sg:person.016513273607.59", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.016513273607.59"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA", 
          "id": "http://www.grid.ac/institutes/grid.253264.4", 
          "name": [
            "Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Roberts", 
        "givenName": "D. H.", 
        "id": "sg:person.07450477503.74", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.07450477503.74"
        ], 
        "type": "Person"
      }
    ], 
    "citation": [
      {
        "id": "sg:pub.10.1038/269563a0", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1041744854", 
          "https://doi.org/10.1038/269563a0"
        ], 
        "type": "CreativeWork"
      }
    ], 
    "datePublished": "1998-10", 
    "datePublishedReg": "1998-10-01", 
    "description": "A long-standing question in extragalactic astrophysics is the composition of the relativistic jets of plasma that stream from the nuclei of quasars and active galaxies\u2014do they consist of a \u2018normal\u2019 (electron\u2013proton) plasma, or a \u2018pair\u2019 (electron\u2013positron) plasma? Distinguishing between these possibilities is crucial for understanding the physical processes occurring close to the putative supermassive black holes that are believed responsible for the jets. Here we report the detection of circularly polarized radio emission from the jets of the archtypal quasar 3C279. The circular polarization is produced by Faraday conversion, which requires the energy distribution of the radiating particles to extend to very low energies, indicating that electron\u2013positron pairs are an important component of the jet plasma. Similar detections in three other radio sources suggest that, in general, extragalactic radio jets are composed mainly of an electron\u2013positron plasma.", 
    "genre": "article", 
    "id": "sg:pub.10.1038/26675", 
    "inLanguage": "en", 
    "isAccessibleForFree": true, 
    "isPartOf": [
      {
        "id": "sg:journal.1018957", 
        "issn": [
          "0028-0836", 
          "1476-4687"
        ], 
        "name": "Nature", 
        "publisher": "Springer Nature", 
        "type": "Periodical"
      }, 
      {
        "issueNumber": "6701", 
        "type": "PublicationIssue"
      }, 
      {
        "type": "PublicationVolume", 
        "volumeNumber": "395"
      }
    ], 
    "keywords": [
      "putative supermassive black hole", 
      "electron-positron plasma", 
      "electron\u2013positron jets", 
      "electron-positron pairs", 
      "supermassive black holes", 
      "nuclei of quasars", 
      "extragalactic radio jets", 
      "extragalactic astrophysics", 
      "active galaxies", 
      "relativistic jets", 
      "radio emission", 
      "radio jets", 
      "radio sources", 
      "jet plasma", 
      "black holes", 
      "Faraday conversion", 
      "energy distribution", 
      "low energy", 
      "circular polarization", 
      "physical processes", 
      "plasma", 
      "jet", 
      "similar detection", 
      "galaxies", 
      "astrophysics", 
      "quasars", 
      "polarization", 
      "holes", 
      "emission", 
      "energy", 
      "particles", 
      "nucleus", 
      "pairs", 
      "detection", 
      "source", 
      "distribution", 
      "possibility", 
      "conversion", 
      "composition", 
      "components", 
      "process", 
      "streams", 
      "questions", 
      "important component"
    ], 
    "name": "Electron\u2013positron jets associated with the quasar 3C279", 
    "pagination": "457-461", 
    "productId": [
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1016029083"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1038/26675"
        ]
      }
    ], 
    "sameAs": [
      "https://doi.org/10.1038/26675", 
      "https://app.dimensions.ai/details/publication/pub.1016029083"
    ], 
    "sdDataset": "articles", 
    "sdDatePublished": "2022-06-01T22:00", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-springernature-scigraph/baseset/20220601/entities/gbq_results/article/article_281.jsonl", 
    "type": "ScholarlyArticle", 
    "url": "https://doi.org/10.1038/26675"
  }
]
 

Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1038/26675'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1038/26675'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1038/26675'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1038/26675'


 

This table displays all metadata directly associated to this object as RDF triples.

131 TRIPLES      22 PREDICATES      72 URIs      62 LITERALS      6 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1038/26675 schema:about anzsrc-for:02
2 anzsrc-for:0201
3 anzsrc-for:0202
4 schema:author Na34aa388f6524e84810674903d9684c9
5 schema:citation sg:pub.10.1038/269563a0
6 schema:datePublished 1998-10
7 schema:datePublishedReg 1998-10-01
8 schema:description A long-standing question in extragalactic astrophysics is the composition of the relativistic jets of plasma that stream from the nuclei of quasars and active galaxies—do they consist of a ‘normal’ (electron–proton) plasma, or a ‘pair’ (electron–positron) plasma? Distinguishing between these possibilities is crucial for understanding the physical processes occurring close to the putative supermassive black holes that are believed responsible for the jets. Here we report the detection of circularly polarized radio emission from the jets of the archtypal quasar 3C279. The circular polarization is produced by Faraday conversion, which requires the energy distribution of the radiating particles to extend to very low energies, indicating that electron–positron pairs are an important component of the jet plasma. Similar detections in three other radio sources suggest that, in general, extragalactic radio jets are composed mainly of an electron–positron plasma.
9 schema:genre article
10 schema:inLanguage en
11 schema:isAccessibleForFree true
12 schema:isPartOf N1c9c4f4f59d84546b39e1377bd8cf967
13 N6f9deec11400442bb9e157a204b9f916
14 sg:journal.1018957
15 schema:keywords Faraday conversion
16 active galaxies
17 astrophysics
18 black holes
19 circular polarization
20 components
21 composition
22 conversion
23 detection
24 distribution
25 electron-positron pairs
26 electron-positron plasma
27 electron–positron jets
28 emission
29 energy
30 energy distribution
31 extragalactic astrophysics
32 extragalactic radio jets
33 galaxies
34 holes
35 important component
36 jet
37 jet plasma
38 low energy
39 nuclei of quasars
40 nucleus
41 pairs
42 particles
43 physical processes
44 plasma
45 polarization
46 possibility
47 process
48 putative supermassive black hole
49 quasars
50 questions
51 radio emission
52 radio jets
53 radio sources
54 relativistic jets
55 similar detection
56 source
57 streams
58 supermassive black holes
59 schema:name Electron–positron jets associated with the quasar 3C279
60 schema:pagination 457-461
61 schema:productId N0bf91dfc902347bf9181c91bd0c91170
62 Nabb51a9e5b964ea3b0ece0e6c624bd9d
63 schema:sameAs https://app.dimensions.ai/details/publication/pub.1016029083
64 https://doi.org/10.1038/26675
65 schema:sdDatePublished 2022-06-01T22:00
66 schema:sdLicense https://scigraph.springernature.com/explorer/license/
67 schema:sdPublisher N045dbc036fc24754bd242c6d0ad3e616
68 schema:url https://doi.org/10.1038/26675
69 sgo:license sg:explorer/license/
70 sgo:sdDataset articles
71 rdf:type schema:ScholarlyArticle
72 N045dbc036fc24754bd242c6d0ad3e616 schema:name Springer Nature - SN SciGraph project
73 rdf:type schema:Organization
74 N0bf91dfc902347bf9181c91bd0c91170 schema:name doi
75 schema:value 10.1038/26675
76 rdf:type schema:PropertyValue
77 N1c9c4f4f59d84546b39e1377bd8cf967 schema:volumeNumber 395
78 rdf:type schema:PublicationVolume
79 N6f9deec11400442bb9e157a204b9f916 schema:issueNumber 6701
80 rdf:type schema:PublicationIssue
81 N72a4438e03844e15849ea47639da7f6e rdf:first sg:person.010740147564.12
82 rdf:rest Nf0dbabc19b724a32ac4ad3241415797e
83 N8f1d3e00973143a096dbb722b035b407 rdf:first sg:person.07450477503.74
84 rdf:rest rdf:nil
85 Na34aa388f6524e84810674903d9684c9 rdf:first sg:person.014762163600.32
86 rdf:rest N72a4438e03844e15849ea47639da7f6e
87 Nabb51a9e5b964ea3b0ece0e6c624bd9d schema:name dimensions_id
88 schema:value pub.1016029083
89 rdf:type schema:PropertyValue
90 Nf0dbabc19b724a32ac4ad3241415797e rdf:first sg:person.016513273607.59
91 rdf:rest N8f1d3e00973143a096dbb722b035b407
92 anzsrc-for:02 schema:inDefinedTermSet anzsrc-for:
93 schema:name Physical Sciences
94 rdf:type schema:DefinedTerm
95 anzsrc-for:0201 schema:inDefinedTermSet anzsrc-for:
96 schema:name Astronomical and Space Sciences
97 rdf:type schema:DefinedTerm
98 anzsrc-for:0202 schema:inDefinedTermSet anzsrc-for:
99 schema:name Atomic, Molecular, Nuclear, Particle and Plasma Physics
100 rdf:type schema:DefinedTerm
101 sg:journal.1018957 schema:issn 0028-0836
102 1476-4687
103 schema:name Nature
104 schema:publisher Springer Nature
105 rdf:type schema:Periodical
106 sg:person.010740147564.12 schema:affiliation grid-institutes:grid.253264.4
107 schema:familyName Homan
108 schema:givenName D. C.
109 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010740147564.12
110 rdf:type schema:Person
111 sg:person.014762163600.32 schema:affiliation grid-institutes:grid.253264.4
112 schema:familyName Wardle
113 schema:givenName J. F. C.
114 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014762163600.32
115 rdf:type schema:Person
116 sg:person.016513273607.59 schema:affiliation grid-institutes:grid.253264.4
117 schema:familyName Ojha
118 schema:givenName R.
119 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.016513273607.59
120 rdf:type schema:Person
121 sg:person.07450477503.74 schema:affiliation grid-institutes:grid.253264.4
122 schema:familyName Roberts
123 schema:givenName D. H.
124 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.07450477503.74
125 rdf:type schema:Person
126 sg:pub.10.1038/269563a0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1041744854
127 https://doi.org/10.1038/269563a0
128 rdf:type schema:CreativeWork
129 grid-institutes:grid.253264.4 schema:alternateName Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA
130 schema:name Department of Physics, Brandeis University, 02254, Waltham, Massachusetts, USA
131 rdf:type schema:Organization
 




Preview window. Press ESC to close (or click here)


...