Modeling the infrared extinction toward the galactic center View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2013-10-24

AUTHORS

Jian Gao, Aigen Li, B. W. Jiang

ABSTRACT

We model the ~ 1–19 μ m infrared (IR) extinction curve toward the Galactic Center (GC) in terms of the standard silicate-graphite interstellar dust model. The grains are taken to have a power law size distribution with an exponential decay above some size. The best-fit model for the GC IR extinction constrains the visual extinction to be AV ~ 38–42 mag. The limitation of the model, i.e., its difficulty in simultaneously reproducing both the steep ~ 1–3 μ m near-IR extinction and the flat ~ 3–8 μ m mid-IR extinction is discussed. We argue that this difficulty could be alleviated by attributing the extinction toward the GC to a combination of dust in different environments: dust in diffuse regions (characterized by small RV and steep near-IR extinction), and dust in dense regions (characterized by large RV and flat UV extinction). More... »

PAGES

8

Identifiers

URI

http://scigraph.springernature.com/pub.10.5047/eps.2013.05.016

DOI

http://dx.doi.org/10.5047/eps.2013.05.016

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1043842189


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/2008/01", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Mathematical Sciences", 
        "type": "DefinedTerm"
      }, 
      {
        "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/2008/04", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Earth Sciences", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "Department of Astronomy, Beijing Normal University, 100875, Beijing, China", 
          "id": "http://www.grid.ac/institutes/grid.20513.35", 
          "name": [
            "Department of Astronomy, Beijing Normal University, 100875, Beijing, China"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Gao", 
        "givenName": "Jian", 
        "id": "sg:person.010465137075.96", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010465137075.96"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Physics and Astronomy, University of Missouri, 65211, Columbia, MO, USA", 
          "id": "http://www.grid.ac/institutes/grid.134936.a", 
          "name": [
            "Department of Physics and Astronomy, University of Missouri, 65211, Columbia, MO, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Li", 
        "givenName": "Aigen", 
        "id": "sg:person.014411002373.04", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014411002373.04"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Astronomy, Beijing Normal University, 100875, Beijing, China", 
          "id": "http://www.grid.ac/institutes/grid.20513.35", 
          "name": [
            "Department of Astronomy, Beijing Normal University, 100875, Beijing, China"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Jiang", 
        "givenName": "B. W.", 
        "id": "sg:person.015756115355.29", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.015756115355.29"
        ], 
        "type": "Person"
      }
    ], 
    "citation": [
      {
        "id": "sg:pub.10.1023/a:1005161325181", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1000956155", 
          "https://doi.org/10.1023/a:1005161325181"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.5047/eps.2008.12.006", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1040489744", 
          "https://doi.org/10.5047/eps.2008.12.006"
        ], 
        "type": "CreativeWork"
      }
    ], 
    "datePublished": "2013-10-24", 
    "datePublishedReg": "2013-10-24", 
    "description": "We model the ~ 1\u201319 \u03bc m infrared (IR) extinction curve toward the Galactic Center (GC) in terms of the standard silicate-graphite interstellar dust model. The grains are taken to have a power law size distribution with an exponential decay above some size. The best-fit model for the GC IR extinction constrains the visual extinction to be AV ~ 38\u201342 mag. The limitation of the model, i.e., its difficulty in simultaneously reproducing both the steep ~ 1\u20133 \u03bc m near-IR extinction and the flat ~ 3\u20138 \u03bc m mid-IR extinction is discussed. We argue that this difficulty could be alleviated by attributing the extinction toward the GC to a combination of dust in different environments: dust in diffuse regions (characterized by small RV and steep near-IR extinction), and dust in dense regions (characterized by large RV and flat UV extinction).", 
    "genre": "article", 
    "id": "sg:pub.10.5047/eps.2013.05.016", 
    "isAccessibleForFree": true, 
    "isFundedItemOf": [
      {
        "id": "sg:grant.7020659", 
        "type": "MonetaryGrant"
      }, 
      {
        "id": "sg:grant.3125673", 
        "type": "MonetaryGrant"
      }
    ], 
    "isPartOf": [
      {
        "id": "sg:journal.1294798", 
        "issn": [
          "1343-8832", 
          "1880-5981"
        ], 
        "name": "Earth, Planets and Space", 
        "publisher": "Springer Nature", 
        "type": "Periodical"
      }, 
      {
        "issueNumber": "10", 
        "type": "PublicationIssue"
      }, 
      {
        "type": "PublicationVolume", 
        "volumeNumber": "65"
      }
    ], 
    "keywords": [
      "Galactic center", 
      "mid-IR extinction", 
      "IR extinction", 
      "interstellar dust model", 
      "power-law size distribution", 
      "combination of dust", 
      "dust model", 
      "extinction curve", 
      "exponential decay", 
      "dense regions", 
      "fit model", 
      "visual extinction", 
      "model", 
      "diffuse regions", 
      "mag", 
      "dust", 
      "size distribution", 
      "distribution", 
      "terms", 
      "decay", 
      "extinction", 
      "curves", 
      "difficulties", 
      "region", 
      "size", 
      "grains", 
      "limitations", 
      "center", 
      "different environments", 
      "combination", 
      "AV", 
      "environment"
    ], 
    "name": "Modeling the infrared extinction toward the galactic center", 
    "pagination": "8", 
    "productId": [
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1043842189"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.5047/eps.2013.05.016"
        ]
      }
    ], 
    "sameAs": [
      "https://doi.org/10.5047/eps.2013.05.016", 
      "https://app.dimensions.ai/details/publication/pub.1043842189"
    ], 
    "sdDataset": "articles", 
    "sdDatePublished": "2022-11-24T20:57", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-springernature-scigraph/baseset/20221124/entities/gbq_results/article/article_592.jsonl", 
    "type": "ScholarlyArticle", 
    "url": "https://doi.org/10.5047/eps.2013.05.016"
  }
]
 

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.10.5047/eps.2013.05.016'

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

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.5047/eps.2013.05.016'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.5047/eps.2013.05.016'

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

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.5047/eps.2013.05.016'


 

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

122 TRIPLES      21 PREDICATES      59 URIs      48 LITERALS      6 BLANK NODES

Subject Predicate Object
1 sg:pub.10.5047/eps.2013.05.016 schema:about anzsrc-for:01
2 anzsrc-for:02
3 anzsrc-for:04
4 schema:author N59efb1a40d3945ee8621dba612011504
5 schema:citation sg:pub.10.1023/a:1005161325181
6 sg:pub.10.5047/eps.2008.12.006
7 schema:datePublished 2013-10-24
8 schema:datePublishedReg 2013-10-24
9 schema:description We model the ~ 1–19 μ m infrared (IR) extinction curve toward the Galactic Center (GC) in terms of the standard silicate-graphite interstellar dust model. The grains are taken to have a power law size distribution with an exponential decay above some size. The best-fit model for the GC IR extinction constrains the visual extinction to be AV ~ 38–42 mag. The limitation of the model, i.e., its difficulty in simultaneously reproducing both the steep ~ 1–3 μ m near-IR extinction and the flat ~ 3–8 μ m mid-IR extinction is discussed. We argue that this difficulty could be alleviated by attributing the extinction toward the GC to a combination of dust in different environments: dust in diffuse regions (characterized by small RV and steep near-IR extinction), and dust in dense regions (characterized by large RV and flat UV extinction).
10 schema:genre article
11 schema:isAccessibleForFree true
12 schema:isPartOf N30fe765358a84467a841fc275d1732e4
13 Nca3f674b152640a7a0d90c5353f36571
14 sg:journal.1294798
15 schema:keywords AV
16 Galactic center
17 IR extinction
18 center
19 combination
20 combination of dust
21 curves
22 decay
23 dense regions
24 different environments
25 difficulties
26 diffuse regions
27 distribution
28 dust
29 dust model
30 environment
31 exponential decay
32 extinction
33 extinction curve
34 fit model
35 grains
36 interstellar dust model
37 limitations
38 mag
39 mid-IR extinction
40 model
41 power-law size distribution
42 region
43 size
44 size distribution
45 terms
46 visual extinction
47 schema:name Modeling the infrared extinction toward the galactic center
48 schema:pagination 8
49 schema:productId N22183d21414647dcaf2fb95054b51ac2
50 N40af381c8cd04b8e9a5ad12091a0d39a
51 schema:sameAs https://app.dimensions.ai/details/publication/pub.1043842189
52 https://doi.org/10.5047/eps.2013.05.016
53 schema:sdDatePublished 2022-11-24T20:57
54 schema:sdLicense https://scigraph.springernature.com/explorer/license/
55 schema:sdPublisher N2b03b4d2211b42ca9d4a20f80734ce8f
56 schema:url https://doi.org/10.5047/eps.2013.05.016
57 sgo:license sg:explorer/license/
58 sgo:sdDataset articles
59 rdf:type schema:ScholarlyArticle
60 N22183d21414647dcaf2fb95054b51ac2 schema:name dimensions_id
61 schema:value pub.1043842189
62 rdf:type schema:PropertyValue
63 N2b03b4d2211b42ca9d4a20f80734ce8f schema:name Springer Nature - SN SciGraph project
64 rdf:type schema:Organization
65 N30fe765358a84467a841fc275d1732e4 schema:issueNumber 10
66 rdf:type schema:PublicationIssue
67 N40af381c8cd04b8e9a5ad12091a0d39a schema:name doi
68 schema:value 10.5047/eps.2013.05.016
69 rdf:type schema:PropertyValue
70 N59efb1a40d3945ee8621dba612011504 rdf:first sg:person.010465137075.96
71 rdf:rest Nf64609414381415893b2e3cd4439cc03
72 N666fd6eff13140fb81291dad4805c382 rdf:first sg:person.015756115355.29
73 rdf:rest rdf:nil
74 Nca3f674b152640a7a0d90c5353f36571 schema:volumeNumber 65
75 rdf:type schema:PublicationVolume
76 Nf64609414381415893b2e3cd4439cc03 rdf:first sg:person.014411002373.04
77 rdf:rest N666fd6eff13140fb81291dad4805c382
78 anzsrc-for:01 schema:inDefinedTermSet anzsrc-for:
79 schema:name Mathematical Sciences
80 rdf:type schema:DefinedTerm
81 anzsrc-for:02 schema:inDefinedTermSet anzsrc-for:
82 schema:name Physical Sciences
83 rdf:type schema:DefinedTerm
84 anzsrc-for:04 schema:inDefinedTermSet anzsrc-for:
85 schema:name Earth Sciences
86 rdf:type schema:DefinedTerm
87 sg:grant.3125673 http://pending.schema.org/fundedItem sg:pub.10.5047/eps.2013.05.016
88 rdf:type schema:MonetaryGrant
89 sg:grant.7020659 http://pending.schema.org/fundedItem sg:pub.10.5047/eps.2013.05.016
90 rdf:type schema:MonetaryGrant
91 sg:journal.1294798 schema:issn 1343-8832
92 1880-5981
93 schema:name Earth, Planets and Space
94 schema:publisher Springer Nature
95 rdf:type schema:Periodical
96 sg:person.010465137075.96 schema:affiliation grid-institutes:grid.20513.35
97 schema:familyName Gao
98 schema:givenName Jian
99 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.010465137075.96
100 rdf:type schema:Person
101 sg:person.014411002373.04 schema:affiliation grid-institutes:grid.134936.a
102 schema:familyName Li
103 schema:givenName Aigen
104 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014411002373.04
105 rdf:type schema:Person
106 sg:person.015756115355.29 schema:affiliation grid-institutes:grid.20513.35
107 schema:familyName Jiang
108 schema:givenName B. W.
109 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.015756115355.29
110 rdf:type schema:Person
111 sg:pub.10.1023/a:1005161325181 schema:sameAs https://app.dimensions.ai/details/publication/pub.1000956155
112 https://doi.org/10.1023/a:1005161325181
113 rdf:type schema:CreativeWork
114 sg:pub.10.5047/eps.2008.12.006 schema:sameAs https://app.dimensions.ai/details/publication/pub.1040489744
115 https://doi.org/10.5047/eps.2008.12.006
116 rdf:type schema:CreativeWork
117 grid-institutes:grid.134936.a schema:alternateName Department of Physics and Astronomy, University of Missouri, 65211, Columbia, MO, USA
118 schema:name Department of Physics and Astronomy, University of Missouri, 65211, Columbia, MO, USA
119 rdf:type schema:Organization
120 grid-institutes:grid.20513.35 schema:alternateName Department of Astronomy, Beijing Normal University, 100875, Beijing, China
121 schema:name Department of Astronomy, Beijing Normal University, 100875, Beijing, China
122 rdf:type schema:Organization
 




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


...