Dmitry Yu Tsvetkov, Nickolay N. Pavlyuk, Alexandr V. Dodin, Nickolay I. Shatsky, Sergey A. Potanin, Nataliya P. Ikonnikova, Marina A. Burlak, Aleksandr A. Belinskii, Igor M. Volkov, Vsevolod A. Echeistov
{"title":"SNe 2019vxm 和 2020tlf：两颗具有星周相互作用特征的高能 II 型超新星","authors":"Dmitry Yu Tsvetkov, Nickolay N. Pavlyuk, Alexandr V. Dodin, Nickolay I. Shatsky, Sergey A. Potanin, Nataliya P. Ikonnikova, Marina A. Burlak, Aleksandr A. Belinskii, Igor M. Volkov, Vsevolod A. Echeistov","doi":"10.1002/asna.20230166","DOIUrl":null,"url":null,"abstract":"<p>We present optical spectroscopic and photometric observations of type II SNe 2019vxm and 2020tlf. The photometric monitoring of SN 2019vxm continued for 592 days, two spectra were collected. SN 2020tlf was observed for 163 days and we obtained one spectra. The maximum luminosity of both SNe is high: <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>M</mi>\n <mi>V</mi>\n </msub>\n <mo>=</mo>\n <mo>−</mo>\n <mn>20.0</mn>\n <mo>,</mo>\n <mo>−</mo>\n <mn>18.33</mn>\n </mrow>\n <annotation>$$ {M}_V=-20.0,-18.33 $$</annotation>\n </semantics></math> mag for SN 2019vxm and SN 2020tlf, respectively. SN 2019vxm displays typical for most of SNe IIn photometric evolution: long rise to the maximum and slow brightness decline with several changes of the decline rate. The light curve of SN 2020tlf shows it may be considered as an intermediate object between classes II-P and II-L. The spectral evolution of SN 2019vxm was typical for SNe IIn, while for SN 2020tlf only weak signs of circumstellar interaction were observed at maximum light.</p>","PeriodicalId":55442,"journal":{"name":"Astronomische Nachrichten","volume":"345 4","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"SNe 2019vxm and 2020tlf: two luminous type II Supernovae with signatures of circumstellar interaction\",\"authors\":\"Dmitry Yu Tsvetkov, Nickolay N. Pavlyuk, Alexandr V. Dodin, Nickolay I. Shatsky, Sergey A. Potanin, Nataliya P. Ikonnikova, Marina A. Burlak, Aleksandr A. Belinskii, Igor M. Volkov, Vsevolod A. Echeistov\",\"doi\":\"10.1002/asna.20230166\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We present optical spectroscopic and photometric observations of type II SNe 2019vxm and 2020tlf. The photometric monitoring of SN 2019vxm continued for 592 days, two spectra were collected. SN 2020tlf was observed for 163 days and we obtained one spectra. The maximum luminosity of both SNe is high: <span></span><math>\\n <semantics>\\n <mrow>\\n <msub>\\n <mi>M</mi>\\n <mi>V</mi>\\n </msub>\\n <mo>=</mo>\\n <mo>−</mo>\\n <mn>20.0</mn>\\n <mo>,</mo>\\n <mo>−</mo>\\n <mn>18.33</mn>\\n </mrow>\\n <annotation>$$ {M}_V=-20.0,-18.33 $$</annotation>\\n </semantics></math> mag for SN 2019vxm and SN 2020tlf, respectively. SN 2019vxm displays typical for most of SNe IIn photometric evolution: long rise to the maximum and slow brightness decline with several changes of the decline rate. The light curve of SN 2020tlf shows it may be considered as an intermediate object between classes II-P and II-L. The spectral evolution of SN 2019vxm was typical for SNe IIn, while for SN 2020tlf only weak signs of circumstellar interaction were observed at maximum light.</p>\",\"PeriodicalId\":55442,\"journal\":{\"name\":\"Astronomische Nachrichten\",\"volume\":\"345 4\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-02-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Astronomische Nachrichten\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/asna.20230166\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomische Nachrichten","FirstCategoryId":"101","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/asna.20230166","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
SNe 2019vxm and 2020tlf: two luminous type II Supernovae with signatures of circumstellar interaction
We present optical spectroscopic and photometric observations of type II SNe 2019vxm and 2020tlf. The photometric monitoring of SN 2019vxm continued for 592 days, two spectra were collected. SN 2020tlf was observed for 163 days and we obtained one spectra. The maximum luminosity of both SNe is high: mag for SN 2019vxm and SN 2020tlf, respectively. SN 2019vxm displays typical for most of SNe IIn photometric evolution: long rise to the maximum and slow brightness decline with several changes of the decline rate. The light curve of SN 2020tlf shows it may be considered as an intermediate object between classes II-P and II-L. The spectral evolution of SN 2019vxm was typical for SNe IIn, while for SN 2020tlf only weak signs of circumstellar interaction were observed at maximum light.
期刊介绍：
Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.
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