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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| Дата: | 2005 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Головна астрономічна обсерваторія НАН України
2005
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| Назва видання: | Кинематика и физика небесных тел |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/79710 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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| id |
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irk-123456789-797102015-04-04T03:02:02Z 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 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. 2005 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/79710 en Кинематика и физика небесных тел Головна астрономічна обсерваторія НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
MS5: Dynamics and Physics of Solar System Bodies MS5: Dynamics and Physics of Solar System Bodies |
| spellingShingle |
MS5: Dynamics and Physics of Solar System Bodies MS5: Dynamics and Physics of Solar System Bodies Chubko, L.S. Churyumov, K.I. Lukyanyk, I.V. Kleshchonok, V.V. On changes in the spectra of Comet C/1999 S4 (LINEAR) on July 22−28, 2002 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. |
| format |
Article |
| 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. |
| author_sort |
Chubko, L.S. |
| title |
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_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_sort |
on changes in the spectra of comet c/1999 s4 (linear) on july 22−28, 2002 |
| publisher |
Головна астрономічна обсерваторія НАН України |
| publishDate |
2005 |
| topic_facet |
MS5: Dynamics and Physics of Solar System Bodies |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/79710 |
| 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. |
| series |
Кинематика и физика небесных тел |
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2023-10-18T19:19:20Z |
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