Spin Temperature of Ammonia Determined from NH2 in Comet C/2001 A2 (LINEAR) View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2002

AUTHORS

Hideyo Kawakita , Jun-Ichi Watanabe , Tetsuharu Fuse , Reiko Furusho , Shinsuke Abe

ABSTRACT

The ortho-to-para ratio (OPR) of a cometary molecule is one of primordial character in comets. The OPR which is characterized by a spin temperature, is thought to reflect the formation conditions of the molecule. In this paper we show the high-dispersion spectrum of cometary NH2 in Comet C/2001 A2 (LINEAR), from which the OPR of NH2 is determined based on the fluorescence excitation model. Since the NH2 is a photodissociation product of cometary ammonia, we applied the permutation group theory to the whole reaction system (i.e. the photodissociation reaction of ammonia to NH2 and H) in order to derive the OPR of ammonia from that of NH2.The derived OPR of ammonia is 1.12 ± 0.03 in Comet C/2001 A2 (LINEAR). This value corresponds to a spin temperature of 30−2+3 K. If this reflects the temperature where the comet formed in the protosolar nebula, our result indicates that this comet was formed in the region of the giant planets between Jupiter and Neptune. More... »

PAGES

371-379

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-94-017-1088-6_37

DOI

http://dx.doi.org/10.1007/978-94-017-1088-6_37

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1041517888


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/2008/0299", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Other Physical Sciences", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "Gunma Astronomical Observatory, 6860-86 Nakayama, 377-0702, Takayama, Agatsuma, Gunma, Japan", 
          "id": "http://www.grid.ac/institutes/grid.440577.5", 
          "name": [
            "Gunma Astronomical Observatory, 6860-86 Nakayama, 377-0702, Takayama, Agatsuma, Gunma, Japan"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Kawakita", 
        "givenName": "Hideyo", 
        "id": "sg:person.07576000305.40", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.07576000305.40"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan", 
          "id": "http://www.grid.ac/institutes/grid.458494.0", 
          "name": [
            "National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Watanabe", 
        "givenName": "Jun-Ichi", 
        "id": "sg:person.011160664252.75", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.011160664252.75"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan", 
          "id": "http://www.grid.ac/institutes/grid.458494.0", 
          "name": [
            "National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Fuse", 
        "givenName": "Tetsuharu", 
        "id": "sg:person.01300065065.27", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01300065065.27"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Japan Science and Technology Corporation, 5-3 Yonbancho, 102-0081, Chiyoda, Tokyo, Japan", 
          "id": "http://www.grid.ac/institutes/grid.419082.6", 
          "name": [
            "Japan Science and Technology Corporation, 5-3 Yonbancho, 102-0081, Chiyoda, Tokyo, Japan"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Furusho", 
        "givenName": "Reiko", 
        "id": "sg:person.012555676415.29", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.012555676415.29"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, 229-8510, Sagamihara, Kanagawa, Japan", 
          "id": "http://www.grid.ac/institutes/grid.450279.d", 
          "name": [
            "Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, 229-8510, Sagamihara, Kanagawa, Japan"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Abe", 
        "givenName": "Shinsuke", 
        "id": "sg:person.01244240553.18", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01244240553.18"
        ], 
        "type": "Person"
      }
    ], 
    "datePublished": "2002", 
    "datePublishedReg": "2002-01-01", 
    "description": "The ortho-to-para ratio (OPR) of a cometary molecule is one of primordial character in comets. The OPR which is characterized by a spin temperature, is thought to reflect the formation conditions of the molecule. In this paper we show the high-dispersion spectrum of cometary NH2 in Comet C/2001 A2 (LINEAR), from which the OPR of NH2 is determined based on the fluorescence excitation model. Since the NH2 is a photodissociation product of cometary ammonia, we applied the permutation group theory to the whole reaction system (i.e. the photodissociation reaction of ammonia to NH2 and H) in order to derive the OPR of ammonia from that of NH2.The derived OPR of ammonia is 1.12 \u00b1 0.03 in Comet C/2001 A2 (LINEAR). This value corresponds to a spin temperature of 30\u22122+3 K. If this reflects the temperature where the comet formed in the protosolar nebula, our result indicates that this comet was formed in the region of the giant planets between Jupiter and Neptune.", 
    "editor": [
      {
        "familyName": "Boehnhardt", 
        "givenName": "H.", 
        "type": "Person"
      }, 
      {
        "familyName": "Combi", 
        "givenName": "M.", 
        "type": "Person"
      }, 
      {
        "familyName": "Kidger", 
        "givenName": "M. R.", 
        "type": "Person"
      }, 
      {
        "familyName": "Schulz", 
        "givenName": "R.", 
        "type": "Person"
      }
    ], 
    "genre": "chapter", 
    "id": "sg:pub.10.1007/978-94-017-1088-6_37", 
    "isAccessibleForFree": false, 
    "isPartOf": {
      "isbn": [
        "978-90-481-6156-0", 
        "978-94-017-1088-6"
      ], 
      "name": "Cometary Science after Hale-Bopp", 
      "type": "Book"
    }, 
    "keywords": [
      "OPR of ammonia", 
      "spin temperature", 
      "permutation group theory", 
      "Comet C/2001 A2", 
      "group theory", 
      "high-dispersion spectra", 
      "temperature of ammonia", 
      "cometary ammonia", 
      "excitation model", 
      "protosolar nebula", 
      "giant planets", 
      "primordial character", 
      "cometary molecules", 
      "C/2001 A2", 
      "para ratio", 
      "nebula", 
      "theory", 
      "whole reaction system", 
      "comets", 
      "Jupiter", 
      "Neptune", 
      "photodissociation products", 
      "temperature", 
      "model", 
      "planets", 
      "reaction system", 
      "system", 
      "formation conditions", 
      "spectra", 
      "order", 
      "conditions", 
      "results", 
      "values", 
      "character", 
      "OPR", 
      "ratio", 
      "region", 
      "molecules", 
      "products", 
      "A2", 
      "ortho", 
      "NH2", 
      "ammonia", 
      "paper"
    ], 
    "name": "Spin Temperature of Ammonia Determined from NH2 in Comet C/2001 A2 (LINEAR)", 
    "pagination": "371-379", 
    "productId": [
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1041517888"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1007/978-94-017-1088-6_37"
        ]
      }
    ], 
    "publisher": {
      "name": "Springer Nature", 
      "type": "Organisation"
    }, 
    "sameAs": [
      "https://doi.org/10.1007/978-94-017-1088-6_37", 
      "https://app.dimensions.ai/details/publication/pub.1041517888"
    ], 
    "sdDataset": "chapters", 
    "sdDatePublished": "2022-10-01T06:55", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-springernature-scigraph/baseset/20221001/entities/gbq_results/chapter/chapter_242.jsonl", 
    "type": "Chapter", 
    "url": "https://doi.org/10.1007/978-94-017-1088-6_37"
  }
]
 

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.10.1007/978-94-017-1088-6_37'

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

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/978-94-017-1088-6_37'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/978-94-017-1088-6_37'

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

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/978-94-017-1088-6_37'


 

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

155 TRIPLES      22 PREDICATES      69 URIs      62 LITERALS      7 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1007/978-94-017-1088-6_37 schema:about anzsrc-for:02
2 anzsrc-for:0299
3 schema:author Nea6d0c65281845ed924f895f06c1d562
4 schema:datePublished 2002
5 schema:datePublishedReg 2002-01-01
6 schema:description The ortho-to-para ratio (OPR) of a cometary molecule is one of primordial character in comets. The OPR which is characterized by a spin temperature, is thought to reflect the formation conditions of the molecule. In this paper we show the high-dispersion spectrum of cometary NH2 in Comet C/2001 A2 (LINEAR), from which the OPR of NH2 is determined based on the fluorescence excitation model. Since the NH2 is a photodissociation product of cometary ammonia, we applied the permutation group theory to the whole reaction system (i.e. the photodissociation reaction of ammonia to NH2 and H) in order to derive the OPR of ammonia from that of NH2.The derived OPR of ammonia is 1.12 ± 0.03 in Comet C/2001 A2 (LINEAR). This value corresponds to a spin temperature of 30−2+3 K. If this reflects the temperature where the comet formed in the protosolar nebula, our result indicates that this comet was formed in the region of the giant planets between Jupiter and Neptune.
7 schema:editor N77e275f2cafa4258b7004bd396b1b95c
8 schema:genre chapter
9 schema:isAccessibleForFree false
10 schema:isPartOf N920caecca759493faa78d2b02d42f886
11 schema:keywords A2
12 C/2001 A2
13 Comet C/2001 A2
14 Jupiter
15 NH2
16 Neptune
17 OPR
18 OPR of ammonia
19 ammonia
20 character
21 cometary ammonia
22 cometary molecules
23 comets
24 conditions
25 excitation model
26 formation conditions
27 giant planets
28 group theory
29 high-dispersion spectra
30 model
31 molecules
32 nebula
33 order
34 ortho
35 paper
36 para ratio
37 permutation group theory
38 photodissociation products
39 planets
40 primordial character
41 products
42 protosolar nebula
43 ratio
44 reaction system
45 region
46 results
47 spectra
48 spin temperature
49 system
50 temperature
51 temperature of ammonia
52 theory
53 values
54 whole reaction system
55 schema:name Spin Temperature of Ammonia Determined from NH2 in Comet C/2001 A2 (LINEAR)
56 schema:pagination 371-379
57 schema:productId N306eea65ad9b4b56812d0675704b3e4b
58 Nf8117e78c9c4493d9927ba60d2414940
59 schema:publisher Ne467e32e7e724f168a0ad3b324b3245e
60 schema:sameAs https://app.dimensions.ai/details/publication/pub.1041517888
61 https://doi.org/10.1007/978-94-017-1088-6_37
62 schema:sdDatePublished 2022-10-01T06:55
63 schema:sdLicense https://scigraph.springernature.com/explorer/license/
64 schema:sdPublisher Nffacffe886284895bfa56cf110a91b7c
65 schema:url https://doi.org/10.1007/978-94-017-1088-6_37
66 sgo:license sg:explorer/license/
67 sgo:sdDataset chapters
68 rdf:type schema:Chapter
69 N15d57f125159457698ec5d43f2c9a903 schema:familyName Boehnhardt
70 schema:givenName H.
71 rdf:type schema:Person
72 N1bd27062f7234ae196f93510a536e503 rdf:first sg:person.01244240553.18
73 rdf:rest rdf:nil
74 N306eea65ad9b4b56812d0675704b3e4b schema:name dimensions_id
75 schema:value pub.1041517888
76 rdf:type schema:PropertyValue
77 N326c981c64b1438b9833499c215c2175 rdf:first N3641362489584c3191268b429882c69b
78 rdf:rest Nb1b29e0cb7764af98b2a472958978d1b
79 N3641362489584c3191268b429882c69b schema:familyName Kidger
80 schema:givenName M. R.
81 rdf:type schema:Person
82 N5bc7b5865a944d649f0f0b5a0e33df69 rdf:first sg:person.011160664252.75
83 rdf:rest N71fc1a8d01de4ed0a367b46b8ebd4083
84 N71fc1a8d01de4ed0a367b46b8ebd4083 rdf:first sg:person.01300065065.27
85 rdf:rest Neffb59d1a3b642a48632db770e5f2725
86 N77e275f2cafa4258b7004bd396b1b95c rdf:first N15d57f125159457698ec5d43f2c9a903
87 rdf:rest N88588367c06d47ab89af8796a005e58b
88 N88588367c06d47ab89af8796a005e58b rdf:first Nd13314ce9b894ca686d3c7f7100ffd00
89 rdf:rest N326c981c64b1438b9833499c215c2175
90 N920caecca759493faa78d2b02d42f886 schema:isbn 978-90-481-6156-0
91 978-94-017-1088-6
92 schema:name Cometary Science after Hale-Bopp
93 rdf:type schema:Book
94 Nb1b29e0cb7764af98b2a472958978d1b rdf:first Neb8ac88e142849598b19c6bcc6aa7a26
95 rdf:rest rdf:nil
96 Nd13314ce9b894ca686d3c7f7100ffd00 schema:familyName Combi
97 schema:givenName M.
98 rdf:type schema:Person
99 Ne467e32e7e724f168a0ad3b324b3245e schema:name Springer Nature
100 rdf:type schema:Organisation
101 Nea6d0c65281845ed924f895f06c1d562 rdf:first sg:person.07576000305.40
102 rdf:rest N5bc7b5865a944d649f0f0b5a0e33df69
103 Neb8ac88e142849598b19c6bcc6aa7a26 schema:familyName Schulz
104 schema:givenName R.
105 rdf:type schema:Person
106 Neffb59d1a3b642a48632db770e5f2725 rdf:first sg:person.012555676415.29
107 rdf:rest N1bd27062f7234ae196f93510a536e503
108 Nf8117e78c9c4493d9927ba60d2414940 schema:name doi
109 schema:value 10.1007/978-94-017-1088-6_37
110 rdf:type schema:PropertyValue
111 Nffacffe886284895bfa56cf110a91b7c schema:name Springer Nature - SN SciGraph project
112 rdf:type schema:Organization
113 anzsrc-for:02 schema:inDefinedTermSet anzsrc-for:
114 schema:name Physical Sciences
115 rdf:type schema:DefinedTerm
116 anzsrc-for:0299 schema:inDefinedTermSet anzsrc-for:
117 schema:name Other Physical Sciences
118 rdf:type schema:DefinedTerm
119 sg:person.011160664252.75 schema:affiliation grid-institutes:grid.458494.0
120 schema:familyName Watanabe
121 schema:givenName Jun-Ichi
122 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.011160664252.75
123 rdf:type schema:Person
124 sg:person.01244240553.18 schema:affiliation grid-institutes:grid.450279.d
125 schema:familyName Abe
126 schema:givenName Shinsuke
127 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01244240553.18
128 rdf:type schema:Person
129 sg:person.012555676415.29 schema:affiliation grid-institutes:grid.419082.6
130 schema:familyName Furusho
131 schema:givenName Reiko
132 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.012555676415.29
133 rdf:type schema:Person
134 sg:person.01300065065.27 schema:affiliation grid-institutes:grid.458494.0
135 schema:familyName Fuse
136 schema:givenName Tetsuharu
137 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01300065065.27
138 rdf:type schema:Person
139 sg:person.07576000305.40 schema:affiliation grid-institutes:grid.440577.5
140 schema:familyName Kawakita
141 schema:givenName Hideyo
142 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.07576000305.40
143 rdf:type schema:Person
144 grid-institutes:grid.419082.6 schema:alternateName Japan Science and Technology Corporation, 5-3 Yonbancho, 102-0081, Chiyoda, Tokyo, Japan
145 schema:name Japan Science and Technology Corporation, 5-3 Yonbancho, 102-0081, Chiyoda, Tokyo, Japan
146 rdf:type schema:Organization
147 grid-institutes:grid.440577.5 schema:alternateName Gunma Astronomical Observatory, 6860-86 Nakayama, 377-0702, Takayama, Agatsuma, Gunma, Japan
148 schema:name Gunma Astronomical Observatory, 6860-86 Nakayama, 377-0702, Takayama, Agatsuma, Gunma, Japan
149 rdf:type schema:Organization
150 grid-institutes:grid.450279.d schema:alternateName Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, 229-8510, Sagamihara, Kanagawa, Japan
151 schema:name Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, 229-8510, Sagamihara, Kanagawa, Japan
152 rdf:type schema:Organization
153 grid-institutes:grid.458494.0 schema:alternateName National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan
154 schema:name National Astronomical Observatory Japan, 2-21-1 Osawa, Mitaka, 181-8588, Tokyo, Japan
155 rdf:type schema:Organization
 




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


...