On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002
Some spectra of Comet C/1999 S4 (LINEAR) are obtained with the UAGS spectrograph (long slit and CCD) installed on the 1-m Zeiss reflector of the SAO RAS (the Northern Caucasus, Nizhny Arkhyz) on July 23/24, 26/27, and 27/28, 2000. Sophisticated identification of emission lines in the spectra of Come...
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| Veröffentlicht in: | Кинематика и физика небесных тел |
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| Datum: | 2005 |
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | Englisch |
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Головна астрономічна обсерваторія НАН України
2005
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/79710 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 / L.S. Chubko, K.I. Churyumov, I.V. Lukyanyk, V.V. Kleshchonok // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 504-508. — Бібліогр.: 8 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862548458631593984 |
|---|---|
| author | Chubko, L.S. Churyumov, K.I. Lukyanyk, I.V. Kleshchonok, V.V. |
| author_facet | Chubko, L.S. Churyumov, K.I. Lukyanyk, I.V. Kleshchonok, V.V. |
| citation_txt | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 / L.S. Chubko, K.I. Churyumov, I.V. Lukyanyk, V.V. Kleshchonok // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 504-508. — Бібліогр.: 8 назв. — англ. |
| collection | DSpace DC |
| container_title | Кинематика и физика небесных тел |
| description | Some spectra of Comet C/1999 S4 (LINEAR) are obtained with the UAGS spectrograph (long slit and CCD) installed on the 1-m Zeiss reflector of the SAO RAS (the Northern Caucasus, Nizhny Arkhyz) on July 23/24, 26/27, and 27/28, 2000. Sophisticated identification of emission lines in the spectra of Comet C/1999 S4 (LINEAR) is made. Emission lines of the molecules C₂, C₃, CN, NH, CH, NH₂, CO⁺, H₂O⁺, and others were identified in the spectra of Comet C/1999 S4 (LINEAR) derived on July 22/23, 2000 before splitting the cometary nucleus. Analysis of the CCD spectra obtained on July 27/28, 2000 reveals very weak emission lines superposed on the solar reflection spectrum, unlike the case of spectra obtained with the same instrument on July 22/23. From analysis of the surface brightness profile of C₂ along the slit, the velocity of expansion of two secondary fragments (V = 10 km/hr) and energy of fragment expansion (E = 8.7 · 10¹⁵ erg) are estimated. The luminescence cometary continuum is detected by a level of 26% at 5000 Å in the spectra of the comet. Possible mechanisms of nucleus splitting are discussed.
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| first_indexed | 2025-11-25T20:25:07Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-79710 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0233-7665 |
| language | English |
| last_indexed | 2025-11-25T20:25:07Z |
| publishDate | 2005 |
| publisher | Головна астрономічна обсерваторія НАН України |
| record_format | dspace |
| spelling | Chubko, L.S. Churyumov, K.I. Lukyanyk, I.V. Kleshchonok, V.V. 2015-04-03T20:00:34Z 2015-04-03T20:00:34Z 2005 On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 / L.S. Chubko, K.I. Churyumov, I.V. Lukyanyk, V.V. Kleshchonok // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 504-508. — Бібліогр.: 8 назв. — англ. 0233-7665 https://nasplib.isofts.kiev.ua/handle/123456789/79710 Some spectra of Comet C/1999 S4 (LINEAR) are obtained with the UAGS spectrograph (long slit and CCD) installed on the 1-m Zeiss reflector of the SAO RAS (the Northern Caucasus, Nizhny Arkhyz) on July 23/24, 26/27, and 27/28, 2000. Sophisticated identification of emission lines in the spectra of Comet C/1999 S4 (LINEAR) is made. Emission lines of the molecules C₂, C₃, CN, NH, CH, NH₂, CO⁺, H₂O⁺, and others were identified in the spectra of Comet C/1999 S4 (LINEAR) derived on July 22/23, 2000 before splitting the cometary nucleus. Analysis of the CCD spectra obtained on July 27/28, 2000 reveals very weak emission lines superposed on the solar reflection spectrum, unlike the case of spectra obtained with the same instrument on July 22/23. From analysis of the surface brightness profile of C₂ along the slit, the velocity of expansion of two secondary fragments (V = 10 km/hr) and energy of fragment expansion (E = 8.7 · 10¹⁵ erg) are estimated. The luminescence cometary continuum is detected by a level of 26% at 5000 Å in the spectra of the comet. Possible mechanisms of nucleus splitting are discussed. en Головна астрономічна обсерваторія НАН України Кинематика и физика небесных тел MS5: Dynamics and Physics of Solar System Bodies On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 Article published earlier |
| spellingShingle | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 Chubko, L.S. Churyumov, K.I. Lukyanyk, I.V. Kleshchonok, V.V. MS5: Dynamics and Physics of Solar System Bodies |
| title | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 |
| title_full | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 |
| title_fullStr | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 |
| title_full_unstemmed | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 |
| title_short | On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 |
| title_sort | on changes in the spectra of comet c/1999 s4 (linear) on july 22−28, 2002 |
| topic | MS5: Dynamics and Physics of Solar System Bodies |
| topic_facet | MS5: Dynamics and Physics of Solar System Bodies |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/79710 |
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