Unusual comets (?) as observed from the Hubble Space Telescope View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1996-02

AUTHORS

Karen J. Meech, Harold A. Weaver

ABSTRACT

In separate projects, the Hubble Space Telescope has been used to assess the nature of 3 unusual objects: Chiron, Pholus and P/Shoemaker-Levy 9. This paper will compare these objects and discuss how the unique capabilities of the HST may be used to address the issue of cometary activity in each. Chiron, which has exhibited obvious cometary characteristics for several years, might have a bound dust coma that is unresolvable from the ground. In an attempt to directly observe this bound coma, we have obtained a series of images of Chiron with the HST Planetary Camera. Inner coma structure out to 0.″2 has been detected. From these observations we infer a low bulk nucleus density for Chiron. Both HST and ground-based images of 5145 Pholus have been obtained to search for evidence of activity. The ground-based data give the most sensitive limits; however, it is shown that the WFPC-2 on HST can give limits 2–3 orders of magnitude more sensitive than conventional ground-based limits. Finally, as part of a collaborative effort, we have been obtaining HST observations of SL9 in order to determine the fragment sizes and to assess their nature (i.e., cometary vs. asteroid). Both ground-based observations from the UH 2.2m telescope on Mauna Kea and HST observations show that the near-nucleus dust is redder than the sun. While FOS spectra did not detect OH emission, the WFPC-2 HST data show that the inner coma remained very circular from July 1993 up until 2 weeks prior to impact, implying continued production of dust. More... »

PAGES

119-131

References to SciGraph publications

  • 1979. The Discovery and Orbit of (2060) Chiron in DYNAMICS OF THE SOLAR SYSTEM
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf00117511

    DOI

    http://dx.doi.org/10.1007/bf00117511

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1018927109


    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"
          }
        ], 
        "author": [
          {
            "affiliation": {
              "alternateName": "Institute for Astronomy, 2680 Woodlawn Drive, 96822, Honolulu, HI", 
              "id": "http://www.grid.ac/institutes/grid.162346.4", 
              "name": [
                "Institute for Astronomy, 2680 Woodlawn Drive, 96822, Honolulu, HI"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Meech", 
            "givenName": "Karen J.", 
            "id": "sg:person.013454236355.12", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.013454236355.12"
            ], 
            "type": "Person"
          }, 
          {
            "affiliation": {
              "alternateName": "Space Telescope Science Institute, 3700 San Martin Drive, 21218, Baltimore, MD", 
              "id": "http://www.grid.ac/institutes/grid.419446.a", 
              "name": [
                "Space Telescope Science Institute, 3700 San Martin Drive, 21218, Baltimore, MD"
              ], 
              "type": "Organization"
            }, 
            "familyName": "Weaver", 
            "givenName": "Harold A.", 
            "id": "sg:person.0644433753.90", 
            "sameAs": [
              "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0644433753.90"
            ], 
            "type": "Person"
          }
        ], 
        "citation": [
          {
            "id": "sg:pub.10.1007/978-94-010-9256-2_42", 
            "sameAs": [
              "https://app.dimensions.ai/details/publication/pub.1089816546", 
              "https://doi.org/10.1007/978-94-010-9256-2_42"
            ], 
            "type": "CreativeWork"
          }
        ], 
        "datePublished": "1996-02", 
        "datePublishedReg": "1996-02-01", 
        "description": "In separate projects, the Hubble Space Telescope has been used to assess the nature of 3 unusual objects: Chiron, Pholus and P/Shoemaker-Levy 9. This paper will compare these objects and discuss how the unique capabilities of the HST may be used to address the issue of cometary activity in each. Chiron, which has exhibited obvious cometary characteristics for several years, might have a bound dust coma that is unresolvable from the ground. In an attempt to directly observe this bound coma, we have obtained a series of images of Chiron with the HST Planetary Camera. Inner coma structure out to 0.\u20332 has been detected. From these observations we infer a low bulk nucleus density for Chiron. Both HST and ground-based images of 5145 Pholus have been obtained to search for evidence of activity. The ground-based data give the most sensitive limits; however, it is shown that the WFPC-2 on HST can give limits 2\u20133 orders of magnitude more sensitive than conventional ground-based limits. Finally, as part of a collaborative effort, we have been obtaining HST observations of SL9 in order to determine the fragment sizes and to assess their nature (i.e., cometary vs. asteroid). Both ground-based observations from the UH 2.2m telescope on Mauna Kea and HST observations show that the near-nucleus dust is redder than the sun. While FOS spectra did not detect OH emission, the WFPC-2 HST data show that the inner coma remained very circular from July 1993 up until 2 weeks prior to impact, implying continued production of dust.", 
        "genre": "article", 
        "id": "sg:pub.10.1007/bf00117511", 
        "isAccessibleForFree": false, 
        "isPartOf": [
          {
            "id": "sg:journal.1026186", 
            "issn": [
              "0167-9295", 
              "1573-0794"
            ], 
            "name": "Earth, Moon, and Planets", 
            "publisher": "Springer Nature", 
            "type": "Periodical"
          }, 
          {
            "issueNumber": "1-3", 
            "type": "PublicationIssue"
          }, 
          {
            "type": "PublicationVolume", 
            "volumeNumber": "72"
          }
        ], 
        "keywords": [
          "Hubble Space Telescope", 
          "Space Telescope", 
          "HST observations", 
          "Shoemaker-Levy 9", 
          "ground-based images", 
          "ground-based observations", 
          "Planetary Camera", 
          "HST data", 
          "FOS spectra", 
          "sensitive limit", 
          "ground-based data", 
          "telescope", 
          "OH emission", 
          "inner coma", 
          "unusual objects", 
          "cometary activity", 
          "near-nucleus dust", 
          "orders of magnitude", 
          "Mauna Kea", 
          "HST", 
          "unique capabilities", 
          "Pholus", 
          "nuclei density", 
          "dust", 
          "series of images", 
          "Sun", 
          "spectra", 
          "emission", 
          "Kea", 
          "limit", 
          "comets", 
          "limit 2", 
          "Chiron", 
          "SL9", 
          "objects", 
          "density", 
          "coma", 
          "images", 
          "magnitude", 
          "camera", 
          "structure", 
          "nature", 
          "order", 
          "UH", 
          "ground", 
          "capability", 
          "size", 
          "separate projects", 
          "data", 
          "characteristics", 
          "series", 
          "fragment size", 
          "part", 
          "evidence of activity", 
          "production", 
          "paper", 
          "evidence", 
          "collaborative effort", 
          "attempt", 
          "efforts", 
          "impact", 
          "project", 
          "continued production", 
          "issues", 
          "activity", 
          "years", 
          "observations", 
          "weeks"
        ], 
        "name": "Unusual comets (?) as observed from the Hubble Space Telescope", 
        "pagination": "119-131", 
        "productId": [
          {
            "name": "dimensions_id", 
            "type": "PropertyValue", 
            "value": [
              "pub.1018927109"
            ]
          }, 
          {
            "name": "doi", 
            "type": "PropertyValue", 
            "value": [
              "10.1007/bf00117511"
            ]
          }
        ], 
        "sameAs": [
          "https://doi.org/10.1007/bf00117511", 
          "https://app.dimensions.ai/details/publication/pub.1018927109"
        ], 
        "sdDataset": "articles", 
        "sdDatePublished": "2022-09-02T15:48", 
        "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
        "sdPublisher": {
          "name": "Springer Nature - SN SciGraph project", 
          "type": "Organization"
        }, 
        "sdSource": "s3://com-springernature-scigraph/baseset/20220902/entities/gbq_results/article/article_287.jsonl", 
        "type": "ScholarlyArticle", 
        "url": "https://doi.org/10.1007/bf00117511"
      }
    ]
     

    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/bf00117511'

    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/bf00117511'

    Turtle is a human-readable linked data format.

    curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/bf00117511'

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

    curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/bf00117511'


     

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

    139 TRIPLES      21 PREDICATES      94 URIs      85 LITERALS      6 BLANK NODES

    Subject Predicate Object
    1 sg:pub.10.1007/bf00117511 schema:about anzsrc-for:02
    2 anzsrc-for:0201
    3 schema:author N8e8f5a6ab19140b48847a83b4af6312c
    4 schema:citation sg:pub.10.1007/978-94-010-9256-2_42
    5 schema:datePublished 1996-02
    6 schema:datePublishedReg 1996-02-01
    7 schema:description In separate projects, the Hubble Space Telescope has been used to assess the nature of 3 unusual objects: Chiron, Pholus and P/Shoemaker-Levy 9. This paper will compare these objects and discuss how the unique capabilities of the HST may be used to address the issue of cometary activity in each. Chiron, which has exhibited obvious cometary characteristics for several years, might have a bound dust coma that is unresolvable from the ground. In an attempt to directly observe this bound coma, we have obtained a series of images of Chiron with the HST Planetary Camera. Inner coma structure out to 0.″2 has been detected. From these observations we infer a low bulk nucleus density for Chiron. Both HST and ground-based images of 5145 Pholus have been obtained to search for evidence of activity. The ground-based data give the most sensitive limits; however, it is shown that the WFPC-2 on HST can give limits 2–3 orders of magnitude more sensitive than conventional ground-based limits. Finally, as part of a collaborative effort, we have been obtaining HST observations of SL9 in order to determine the fragment sizes and to assess their nature (i.e., cometary vs. asteroid). Both ground-based observations from the UH 2.2m telescope on Mauna Kea and HST observations show that the near-nucleus dust is redder than the sun. While FOS spectra did not detect OH emission, the WFPC-2 HST data show that the inner coma remained very circular from July 1993 up until 2 weeks prior to impact, implying continued production of dust.
    8 schema:genre article
    9 schema:isAccessibleForFree false
    10 schema:isPartOf N33e5d5f793294995baafb7619ffe92b4
    11 Nbed4980a43964b99b51e25f204499f3d
    12 sg:journal.1026186
    13 schema:keywords Chiron
    14 FOS spectra
    15 HST
    16 HST data
    17 HST observations
    18 Hubble Space Telescope
    19 Kea
    20 Mauna Kea
    21 OH emission
    22 Pholus
    23 Planetary Camera
    24 SL9
    25 Shoemaker-Levy 9
    26 Space Telescope
    27 Sun
    28 UH
    29 activity
    30 attempt
    31 camera
    32 capability
    33 characteristics
    34 collaborative effort
    35 coma
    36 cometary activity
    37 comets
    38 continued production
    39 data
    40 density
    41 dust
    42 efforts
    43 emission
    44 evidence
    45 evidence of activity
    46 fragment size
    47 ground
    48 ground-based data
    49 ground-based images
    50 ground-based observations
    51 images
    52 impact
    53 inner coma
    54 issues
    55 limit
    56 limit 2
    57 magnitude
    58 nature
    59 near-nucleus dust
    60 nuclei density
    61 objects
    62 observations
    63 order
    64 orders of magnitude
    65 paper
    66 part
    67 production
    68 project
    69 sensitive limit
    70 separate projects
    71 series
    72 series of images
    73 size
    74 spectra
    75 structure
    76 telescope
    77 unique capabilities
    78 unusual objects
    79 weeks
    80 years
    81 schema:name Unusual comets (?) as observed from the Hubble Space Telescope
    82 schema:pagination 119-131
    83 schema:productId N82ea1cca8cb64f008e06a0e4b1712131
    84 Neff3a2063a7649b4b6202b2573ab15c9
    85 schema:sameAs https://app.dimensions.ai/details/publication/pub.1018927109
    86 https://doi.org/10.1007/bf00117511
    87 schema:sdDatePublished 2022-09-02T15:48
    88 schema:sdLicense https://scigraph.springernature.com/explorer/license/
    89 schema:sdPublisher N192dd43b69624d89b03bc7db503055bd
    90 schema:url https://doi.org/10.1007/bf00117511
    91 sgo:license sg:explorer/license/
    92 sgo:sdDataset articles
    93 rdf:type schema:ScholarlyArticle
    94 N192dd43b69624d89b03bc7db503055bd schema:name Springer Nature - SN SciGraph project
    95 rdf:type schema:Organization
    96 N33e5d5f793294995baafb7619ffe92b4 schema:volumeNumber 72
    97 rdf:type schema:PublicationVolume
    98 N82ea1cca8cb64f008e06a0e4b1712131 schema:name doi
    99 schema:value 10.1007/bf00117511
    100 rdf:type schema:PropertyValue
    101 N8e8f5a6ab19140b48847a83b4af6312c rdf:first sg:person.013454236355.12
    102 rdf:rest Ncf58838712724e54aba34cbe357df1ff
    103 Nbed4980a43964b99b51e25f204499f3d schema:issueNumber 1-3
    104 rdf:type schema:PublicationIssue
    105 Ncf58838712724e54aba34cbe357df1ff rdf:first sg:person.0644433753.90
    106 rdf:rest rdf:nil
    107 Neff3a2063a7649b4b6202b2573ab15c9 schema:name dimensions_id
    108 schema:value pub.1018927109
    109 rdf:type schema:PropertyValue
    110 anzsrc-for:02 schema:inDefinedTermSet anzsrc-for:
    111 schema:name Physical Sciences
    112 rdf:type schema:DefinedTerm
    113 anzsrc-for:0201 schema:inDefinedTermSet anzsrc-for:
    114 schema:name Astronomical and Space Sciences
    115 rdf:type schema:DefinedTerm
    116 sg:journal.1026186 schema:issn 0167-9295
    117 1573-0794
    118 schema:name Earth, Moon, and Planets
    119 schema:publisher Springer Nature
    120 rdf:type schema:Periodical
    121 sg:person.013454236355.12 schema:affiliation grid-institutes:grid.162346.4
    122 schema:familyName Meech
    123 schema:givenName Karen J.
    124 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.013454236355.12
    125 rdf:type schema:Person
    126 sg:person.0644433753.90 schema:affiliation grid-institutes:grid.419446.a
    127 schema:familyName Weaver
    128 schema:givenName Harold A.
    129 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0644433753.90
    130 rdf:type schema:Person
    131 sg:pub.10.1007/978-94-010-9256-2_42 schema:sameAs https://app.dimensions.ai/details/publication/pub.1089816546
    132 https://doi.org/10.1007/978-94-010-9256-2_42
    133 rdf:type schema:CreativeWork
    134 grid-institutes:grid.162346.4 schema:alternateName Institute for Astronomy, 2680 Woodlawn Drive, 96822, Honolulu, HI
    135 schema:name Institute for Astronomy, 2680 Woodlawn Drive, 96822, Honolulu, HI
    136 rdf:type schema:Organization
    137 grid-institutes:grid.419446.a schema:alternateName Space Telescope Science Institute, 3700 San Martin Drive, 21218, Baltimore, MD
    138 schema:name Space Telescope Science Institute, 3700 San Martin Drive, 21218, Baltimore, MD
    139 rdf:type schema:Organization
     




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


    ...