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BVIc Observations and Search for Evolutionary Variations in the Cepheid V811 Oph Period
For the first time, BVI c observations of the Cepheid V811 Oph were obtained by using a new 60‑cm telescope at the Caucasus Mountain Observatory, Sternberg Astronomical Institute, Moscow State University (SAI MSU). An diagram covering a time span of 124 years was plotted using photometry from old ph...
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| Published in: | Astronomy reports 2020-04, Vol.64 (4), p.310-318 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c316t-280ea712395ca6251a546844f70d13ec7e9dba03fad0da192bab2bd1bf2a415b3 |
| container_end_page | 318 |
| container_issue | 4 |
| container_start_page | 310 |
| container_title | Astronomy reports |
| container_volume | 64 |
| creator | Berdnikov, L. N. Belinskii, A. A. Shatskii, N. I. Burlak, M. A. Ikonnikova, N. P. Mishin, E. O. Cheryasov, D. V. Zhuiko, S. V. |
| description | For the first time,
BVI
c
observations of the Cepheid V811 Oph were obtained by using a new 60‑cm telescope at the Caucasus Mountain Observatory, Sternberg Astronomical Institute, Moscow State University (SAI MSU). An
diagram covering a time span of 124 years was plotted using photometry from old photographic and modern sky surveys. The diagram has a parabola shape, which made it possible to determine for the first time the quadratic elements of the brightness variations. Furthermore, it made it possible to calculate the rate of an evolutionary decrease in the period of V811 Oph
s/year, which is consistent with the theoretical calculation results for the second intersection of the instability strip if this Cepheid is a classical one. The pulsation stability test proposed by Lombard and Koen confirmed the actual decrease in the period. |
| doi_str_mv | 10.1134/S1063772920040010 |
| format | article |
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BVI
c
observations of the Cepheid V811 Oph were obtained by using a new 60‑cm telescope at the Caucasus Mountain Observatory, Sternberg Astronomical Institute, Moscow State University (SAI MSU). An
diagram covering a time span of 124 years was plotted using photometry from old photographic and modern sky surveys. The diagram has a parabola shape, which made it possible to determine for the first time the quadratic elements of the brightness variations. Furthermore, it made it possible to calculate the rate of an evolutionary decrease in the period of V811 Oph
s/year, which is consistent with the theoretical calculation results for the second intersection of the instability strip if this Cepheid is a classical one. The pulsation stability test proposed by Lombard and Koen confirmed the actual decrease in the period.</description><identifier>ISSN: 1063-7729</identifier><identifier>EISSN: 1562-6881</identifier><identifier>DOI: 10.1134/S1063772920040010</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Astronomy ; Cepheid variables ; Mathematical analysis ; Mountains ; Observations and Techniques ; Physics ; Physics and Astronomy ; Sky surveys (astronomy) ; Stability tests</subject><ispartof>Astronomy reports, 2020-04, Vol.64 (4), p.310-318</ispartof><rights>Pleiades Publishing, Ltd. 2020</rights><rights>Pleiades Publishing, Ltd. 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-280ea712395ca6251a546844f70d13ec7e9dba03fad0da192bab2bd1bf2a415b3</citedby><cites>FETCH-LOGICAL-c316t-280ea712395ca6251a546844f70d13ec7e9dba03fad0da192bab2bd1bf2a415b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Berdnikov, L. N.</creatorcontrib><creatorcontrib>Belinskii, A. A.</creatorcontrib><creatorcontrib>Shatskii, N. I.</creatorcontrib><creatorcontrib>Burlak, M. A.</creatorcontrib><creatorcontrib>Ikonnikova, N. P.</creatorcontrib><creatorcontrib>Mishin, E. O.</creatorcontrib><creatorcontrib>Cheryasov, D. V.</creatorcontrib><creatorcontrib>Zhuiko, S. V.</creatorcontrib><title>BVIc Observations and Search for Evolutionary Variations in the Cepheid V811 Oph Period</title><title>Astronomy reports</title><addtitle>Astron. Rep</addtitle><description>For the first time,
BVI
c
observations of the Cepheid V811 Oph were obtained by using a new 60‑cm telescope at the Caucasus Mountain Observatory, Sternberg Astronomical Institute, Moscow State University (SAI MSU). An
diagram covering a time span of 124 years was plotted using photometry from old photographic and modern sky surveys. The diagram has a parabola shape, which made it possible to determine for the first time the quadratic elements of the brightness variations. Furthermore, it made it possible to calculate the rate of an evolutionary decrease in the period of V811 Oph
s/year, which is consistent with the theoretical calculation results for the second intersection of the instability strip if this Cepheid is a classical one. The pulsation stability test proposed by Lombard and Koen confirmed the actual decrease in the period.</description><subject>Astronomy</subject><subject>Cepheid variables</subject><subject>Mathematical analysis</subject><subject>Mountains</subject><subject>Observations and Techniques</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Sky surveys (astronomy)</subject><subject>Stability tests</subject><issn>1063-7729</issn><issn>1562-6881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kFFLwzAUhYMoOKc_wLeAz9XcJG3TRx1TB4MJ0_lYbprUdsymJt3Af2_GBj6IT_fC-c653EPINbBbACHvlsAykee84IxJxoCdkBGkGU8ypeA07lFO9vo5uQhhHQlQIhuR94fVrKILHazf4dC6LlDsDF1a9FVDa-fpdOc2272C_puu0LdHrO3o0Fg6sX1jW0NXCoAu-oa-WN86c0nOatwEe3WcY_L2OH2dPCfzxdNscj9PKgHZkHDFLObARZFWmPEUMJWZkrLOmQFhq9wWRiMTNRpmEAquUXNtQNccJaRajMnNIbf37mtrw1Cu3dZ38WTJhSpynjLJIwUHqvIuBG_rsvftZ3yoBFbu-yv_9Bc9_OAJke0-rP9N_t_0A9VxcF8</recordid><startdate>20200401</startdate><enddate>20200401</enddate><creator>Berdnikov, L. N.</creator><creator>Belinskii, A. A.</creator><creator>Shatskii, N. I.</creator><creator>Burlak, M. A.</creator><creator>Ikonnikova, N. P.</creator><creator>Mishin, E. O.</creator><creator>Cheryasov, D. V.</creator><creator>Zhuiko, S. V.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope></search><sort><creationdate>20200401</creationdate><title>BVIc Observations and Search for Evolutionary Variations in the Cepheid V811 Oph Period</title><author>Berdnikov, L. N. ; Belinskii, A. A. ; Shatskii, N. I. ; Burlak, M. A. ; Ikonnikova, N. P. ; Mishin, E. O. ; Cheryasov, D. V. ; Zhuiko, S. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-280ea712395ca6251a546844f70d13ec7e9dba03fad0da192bab2bd1bf2a415b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Astronomy</topic><topic>Cepheid variables</topic><topic>Mathematical analysis</topic><topic>Mountains</topic><topic>Observations and Techniques</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Sky surveys (astronomy)</topic><topic>Stability tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Berdnikov, L. N.</creatorcontrib><creatorcontrib>Belinskii, A. A.</creatorcontrib><creatorcontrib>Shatskii, N. I.</creatorcontrib><creatorcontrib>Burlak, M. A.</creatorcontrib><creatorcontrib>Ikonnikova, N. P.</creatorcontrib><creatorcontrib>Mishin, E. O.</creatorcontrib><creatorcontrib>Cheryasov, D. V.</creatorcontrib><creatorcontrib>Zhuiko, S. V.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Berdnikov, L. N.</au><au>Belinskii, A. A.</au><au>Shatskii, N. I.</au><au>Burlak, M. A.</au><au>Ikonnikova, N. P.</au><au>Mishin, E. O.</au><au>Cheryasov, D. V.</au><au>Zhuiko, S. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>BVIc Observations and Search for Evolutionary Variations in the Cepheid V811 Oph Period</atitle><jtitle>Astronomy reports</jtitle><stitle>Astron. Rep</stitle><date>2020-04-01</date><risdate>2020</risdate><volume>64</volume><issue>4</issue><spage>310</spage><epage>318</epage><pages>310-318</pages><issn>1063-7729</issn><eissn>1562-6881</eissn><abstract>For the first time,
BVI
c
observations of the Cepheid V811 Oph were obtained by using a new 60‑cm telescope at the Caucasus Mountain Observatory, Sternberg Astronomical Institute, Moscow State University (SAI MSU). An
diagram covering a time span of 124 years was plotted using photometry from old photographic and modern sky surveys. The diagram has a parabola shape, which made it possible to determine for the first time the quadratic elements of the brightness variations. Furthermore, it made it possible to calculate the rate of an evolutionary decrease in the period of V811 Oph
s/year, which is consistent with the theoretical calculation results for the second intersection of the instability strip if this Cepheid is a classical one. The pulsation stability test proposed by Lombard and Koen confirmed the actual decrease in the period.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063772920040010</doi><tpages>9</tpages></addata></record> |
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| issn | 1063-7729 1562-6881 |
| language | eng |
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| source | Springer Link |
| subjects | Astronomy Cepheid variables Mathematical analysis Mountains Observations and Techniques Physics Physics and Astronomy Sky surveys (astronomy) Stability tests |
| title | BVIc Observations and Search for Evolutionary Variations in the Cepheid V811 Oph Period |
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