Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b
The paper presents magnetic field measurements for 15 chemically peculiar (CP) stars of subgroup 1b in the Orion OB1 association. We have found that the proportion of stars with strong magnetic fields among these 15 CP stars is almost twice as large as in subgroup 1a. Along with this, the age of sub...
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| Veröffentlicht in: | Astrophysical bulletin 2021, Vol.76 (1), p.39-54 |
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| container_title | Astrophysical bulletin |
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| creator | Romanyuk, I. I. Semenko, E. A. Moiseeva, A. V. Yakunin, I. A. Kudryavtsev, D. O. |
| description | The paper presents magnetic field measurements for 15 chemically peculiar (CP) stars of subgroup 1b in the Orion OB1 association. We have found that the proportion of stars with strong magnetic fields among these 15 CP stars is almost twice as large as in subgroup 1a. Along with this, the age of subgroup 1b is estimated as 2 Myr, and the age of subgroup 1a is in the order of 10 Myr. The average root-mean-square magnetic field
(all) for stars in subgroup 1b is 2.3 times higher than that for stars in subgroup 1a. The conclusions obtained fall within the concept of the fossil origin of large-scale magnetic fields in B and A stars, but the rate of field weakening with age appears anomalously high. We present our results as an important observational test for calibrating the theory of stellar magnetic field formation and evolution. |
| doi_str_mv | 10.1134/S1990341321010090 |
| format | Article |
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(all) for stars in subgroup 1b is 2.3 times higher than that for stars in subgroup 1a. The conclusions obtained fall within the concept of the fossil origin of large-scale magnetic fields in B and A stars, but the rate of field weakening with age appears anomalously high. We present our results as an important observational test for calibrating the theory of stellar magnetic field formation and evolution.</description><identifier>ISSN: 1990-3413</identifier><identifier>EISSN: 1990-3421</identifier><identifier>DOI: 10.1134/S1990341321010090</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Astronomy ; Astrophysics and Cosmology ; Field weakening ; Magnetic fields ; Magnetism ; Peculiar stars ; Physics ; Physics and Astronomy ; Stellar age ; Stellar evolution ; Stellar magnetic fields ; Subgroups</subject><ispartof>Astrophysical bulletin, 2021, Vol.76 (1), p.39-54</ispartof><rights>Pleiades Publishing, Ltd. 2021. ISSN 1990-3413, Astrophysical Bulletin, 2021, Vol. 76, No. 1, pp. 39–54. © Pleiades Publishing, Ltd., 2021. Russian Text © The Author(s), 2021, published in Astrofizicheskii Byulleten’, 2021, Vol. 76, No. 1, pp. 43–67.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-a5ee8686852a4faea0232cec21a0f1ec1c4813f0e2e8abd2fe900d7b6e1520d3</citedby><cites>FETCH-LOGICAL-c316t-a5ee8686852a4faea0232cec21a0f1ec1c4813f0e2e8abd2fe900d7b6e1520d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1990341321010090$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1990341321010090$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Romanyuk, I. I.</creatorcontrib><creatorcontrib>Semenko, E. A.</creatorcontrib><creatorcontrib>Moiseeva, A. V.</creatorcontrib><creatorcontrib>Yakunin, I. A.</creatorcontrib><creatorcontrib>Kudryavtsev, D. O.</creatorcontrib><title>Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b</title><title>Astrophysical bulletin</title><addtitle>Astrophys. Bull</addtitle><description>The paper presents magnetic field measurements for 15 chemically peculiar (CP) stars of subgroup 1b in the Orion OB1 association. We have found that the proportion of stars with strong magnetic fields among these 15 CP stars is almost twice as large as in subgroup 1a. Along with this, the age of subgroup 1b is estimated as 2 Myr, and the age of subgroup 1a is in the order of 10 Myr. The average root-mean-square magnetic field
(all) for stars in subgroup 1b is 2.3 times higher than that for stars in subgroup 1a. The conclusions obtained fall within the concept of the fossil origin of large-scale magnetic fields in B and A stars, but the rate of field weakening with age appears anomalously high. We present our results as an important observational test for calibrating the theory of stellar magnetic field formation and evolution.</description><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Field weakening</subject><subject>Magnetic fields</subject><subject>Magnetism</subject><subject>Peculiar stars</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Stellar age</subject><subject>Stellar evolution</subject><subject>Stellar magnetic fields</subject><subject>Subgroups</subject><issn>1990-3413</issn><issn>1990-3421</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWKs_wFvA89aZZHe7OdbiR6FSscXrks1O6pa6qcnuwX9vSoseROYwH7zPO_Aydo0wQpTp7RKVApmiFAgIoOCEDfanRKYCT39mlOfsIoQNQI5SyQF7fdbrlrrG8IeGtnXgzvLpC1922gfetLx7J77wjWv54g75JARnGt3FfcRnb6OjLjLLvlp71-84VpfszOptoKtjH7LVw_1q-pTMF4-z6WSeGIl5l-iMqMhjZUKnVpMGIYUhI1CDRTJo0gKlBRJU6KoWlhRAPa5ywkxALYfs5mC78-6zp9CVG9f7Nn4sRYYg1FgUKqrwoDLeheDJljvffGj_VSKU--TKP8lFRhyYELXtmvyv8__QN3g9bS0</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>Romanyuk, I. I.</creator><creator>Semenko, E. A.</creator><creator>Moiseeva, A. V.</creator><creator>Yakunin, I. A.</creator><creator>Kudryavtsev, D. O.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>2021</creationdate><title>Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b</title><author>Romanyuk, I. I. ; Semenko, E. A. ; Moiseeva, A. V. ; Yakunin, I. A. ; Kudryavtsev, D. O.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-a5ee8686852a4faea0232cec21a0f1ec1c4813f0e2e8abd2fe900d7b6e1520d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Astronomy</topic><topic>Astrophysics and Cosmology</topic><topic>Field weakening</topic><topic>Magnetic fields</topic><topic>Magnetism</topic><topic>Peculiar stars</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Stellar age</topic><topic>Stellar evolution</topic><topic>Stellar magnetic fields</topic><topic>Subgroups</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Romanyuk, I. I.</creatorcontrib><creatorcontrib>Semenko, E. A.</creatorcontrib><creatorcontrib>Moiseeva, A. V.</creatorcontrib><creatorcontrib>Yakunin, I. A.</creatorcontrib><creatorcontrib>Kudryavtsev, D. O.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astrophysical bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Romanyuk, I. I.</au><au>Semenko, E. A.</au><au>Moiseeva, A. V.</au><au>Yakunin, I. A.</au><au>Kudryavtsev, D. O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b</atitle><jtitle>Astrophysical bulletin</jtitle><stitle>Astrophys. Bull</stitle><date>2021</date><risdate>2021</risdate><volume>76</volume><issue>1</issue><spage>39</spage><epage>54</epage><pages>39-54</pages><issn>1990-3413</issn><eissn>1990-3421</eissn><abstract>The paper presents magnetic field measurements for 15 chemically peculiar (CP) stars of subgroup 1b in the Orion OB1 association. We have found that the proportion of stars with strong magnetic fields among these 15 CP stars is almost twice as large as in subgroup 1a. Along with this, the age of subgroup 1b is estimated as 2 Myr, and the age of subgroup 1a is in the order of 10 Myr. The average root-mean-square magnetic field
(all) for stars in subgroup 1b is 2.3 times higher than that for stars in subgroup 1a. The conclusions obtained fall within the concept of the fossil origin of large-scale magnetic fields in B and A stars, but the rate of field weakening with age appears anomalously high. We present our results as an important observational test for calibrating the theory of stellar magnetic field formation and evolution.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1990341321010090</doi><tpages>16</tpages></addata></record> |
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| subjects | Astronomy Astrophysics and Cosmology Field weakening Magnetic fields Magnetism Peculiar stars Physics Physics and Astronomy Stellar age Stellar evolution Stellar magnetic fields Subgroups |
| title | Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b |
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