Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)最新文献_第3页

Comparison of spectral properties of microwave background inhomogeneities on Planck maps with spectral properties of sources of RCR, NVSS and Planck catalogues 普朗克图上微波背景不均匀性与RCR、NVSS和普朗克星表源光谱特性的比较

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-26 DOI: 10.22323/1.425.0019

E. Majorova, O. Zhelenkova

{"title":"Comparison of spectral properties of microwave background inhomogeneities on Planck maps with spectral properties of sources of RCR, NVSS and Planck catalogues","authors":"E. Majorova, O. Zhelenkova","doi":"10.22323/1.425.0019","DOIUrl":"https://doi.org/10.22323/1.425.0019","url":null,"abstract":"A study of the spectral properties of positive spots on multifrequency Planck maps near RCR sources showed their identity with the spectral properties of NVSS sources and closest objects of the Planck catalogue associated with them. In both cases, a linear correlation was found between spectral indices of radio sources in the range of 0.15 - 3.94 GHz and spectral indices of closest spots (of Planck objects) in the frequency range 30 - 217 GHz. The compare of the combined spectra of RCR sources and closest positive spots with the combined spectra of NVSS sources and associated with them objects from the Planck catalogue suggests that the spots found near RCR sources may be manifestations of them in the sub-millimeter range, and most of the spots are extragalactic in nature. Part of the combined spectra of RCR objects and nearby positive spots can be explained by the variability of radio sources. The spectrum of averaged temperatures of hot spots detected near RCR sources was constructed, which showed a quantitative excess over those obtained earlier by modeling, which can be explained by the inﬂuence of synchrotron background or the contribution of radio source to radiation in the submillimeter range. The contribution of these unaccounted for radio sources to the foreground background can aﬀect the resulting map of the cosmological microwave background.","PeriodicalId":355234,"journal":{"name":"Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129596075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of distances to galaxies by the brightest stars 由最亮的恒星测定到星系的距离

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-26 DOI: 10.22323/1.425.0021

N. Tikhonov, O. Galazutdinova, G. Karataeva

引用次数: 0

The optical variability of some blazars at different time scales - recent results 一些耀变体在不同时间尺度上的光学变异性——最近的结果

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-26 DOI: 10.22323/1.425.0031

V. Vlasyuk, O. Spiridonova, A. Moskvitin

引用次数: 0

Search for distant radio galaxies. Big Trio Project 寻找遥远的射电星系。三重奏计划

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-26 DOI: 10.22323/1.425.0022

O. Zhelenkova, Y. Parijskij, N. Soboleva, A. Temirova, Aleksandr I. Kopylov

{"title":"Search for distant radio galaxies. Big Trio Project","authors":"O. Zhelenkova, Y. Parijskij, N. Soboleva, A. Temirova, Aleksandr I. Kopylov","doi":"10.22323/1.425.0022","DOIUrl":"https://doi.org/10.22323/1.425.0022","url":null,"abstract":"Distant radio galaxies as a population of galaxies with active nuclei are of particular interest for research, since current data indicate the presence of supermassive black holes with masses greater than 10 9 M ⊙ , already formed in these giant stellar systems in the first billion years of the existence of the Universe, and also due to the connection of such systems with protoclusters of galaxies. For several years, within the framework of the Big Trio project, studies have been carried out on a sample of double radio sources with steep and ultra-steep spectra from the surveys of the Cold experiment on the search for distant radio galaxies. Optical candidates were found for 94% of the sample, and were not found for the rest of the sources, most likely due to the fact that the objects turned out to be weaker than the limit (R ≤ 25 𝑚 ) of the images obtained with the 6-m BTA telescope. Optical spectra were obtained for 68% of the sample, and no emission lines were found in 17 candidates, mainly due to the low brightness in the optics. Three unique distant galaxies with redshift z>3 and high radio luminosity (log L 500 >28) have been discovered. For these objects, additional studies are still carried out using the MERLIN and EVN radio interferometers. Additional studies using modern radio, optical, and infrared sky surveys, including archival data, made it possible to refine the radio structure, optical identifications, magnitudes, redshifts, and obtain information about the environment of the radio sources for 25% of the sample. Multifaceted","PeriodicalId":355234,"journal":{"name":"Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130356341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the polar coronal hole in the Sun with RATAN-600 in the centimeter radio range 利用RATAN-600在厘米无线电范围内对太阳极日冕洞的研究

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-25 DOI: 10.22323/1.425.0063

O. A. Golubchina

引用次数: 0

Study of the radio spectra evolution of Narrow-line Seyfert 1 galaxies with RATAN-600 用RATAN-600研究窄线Seyfert 1星系的射电光谱演化

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-25 DOI: 10.22323/1.425.0029

A. Mikhailov, Y. Sotnikova, T. Mufakharov, M. Mingaliev, T. Semenova

引用次数: 0

Photometric monitoring of eclipsing cataclysmic variables 日蚀突变变量的光度监测

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-25 DOI: 10.22323/1.425.0039

P. Efremova, M. Gabdeev, R. Zhuchkov, Alexey Gutaev, Ruslan Bayazitov, S. Grigoriev

引用次数: 0

New GPS sources candidates at high redshifts 新的高红移GPS候选源

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-25 DOI: 10.22323/1.425.0030

T. Mufakharov, A. Mikhailov, M. Mingaliev, Y. Sotnikova

引用次数: 0

A method for Identifying the Effects of Nonstationarity in the Radio Emission from Nearby Stellar Systems in Spaced Observations 在间隔观测中识别邻近恒星系统射电发射非平稳性影响的方法

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-24 DOI: 10.22323/1.425.0009

V. Chernenkov, G. Beskin

引用次数: 0

The keys by Nikolai Kardashev and Yuri Parijskij to the Nature of Active Galactic Nuclei Nikolai Kardashev和Yuri Parijskij对活动星系核本质的关键

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-24 DOI: 10.22323/1.425.0027

Y. Kovalev, Yuri Andreevich Kovalev, Nikolai Alexandrovich Nizhelsky, Yuri Yurievich Kovalev, Sergei Vladimorovich Troitsky, Gennadi Valentinovich Zhekanis, Peter Grigorievich Tsibulev, Simon Aronovich Pustilnik, Marat Gfbdulovich Mingaliev, Yulia Vladimirovna Sotnikova, Artur Kurbanovich Erkenov, Vladimir Anatolievich Soglasnov, Alexander Vladimirovich Popkov, Alexander Vladimirovich Plavin

{"title":"The keys by Nikolai Kardashev and Yuri Parijskij to the Nature of Active Galactic Nuclei","authors":"Y. Kovalev, Yuri Andreevich Kovalev, Nikolai Alexandrovich Nizhelsky, Yuri Yurievich Kovalev, Sergei Vladimorovich Troitsky, Gennadi Valentinovich Zhekanis, Peter Grigorievich Tsibulev, Simon Aronovich Pustilnik, Marat Gfbdulovich Mingaliev, Yulia Vladimirovna Sotnikova, Artur Kurbanovich Erkenov, Vladimir Anatolievich Soglasnov, Alexander Vladimirovich Popkov, Alexander Vladimirovich Plavin","doi":"10.22323/1.425.0027","DOIUrl":"https://doi.org/10.22323/1.425.0027","url":null,"abstract":"The Joint AGN Research Observing Program of IKI RAS/ASC FIAN and SAO RAS has been carried out at RATAN-600 since April 1979 thanks to the initiative of Nikolai Kardashev and the constant support of Yuri Parĳskĳ (“Key-1”). The main task is to study active galactic nuclei (AGNs) based on RATAN-600 surveys and monitoring of instantaneous 1–22 GHz spectra of AGNs. The “Hedgehog” model of AGNs was proposed in 1969 by N. S. Kardashev and developed in the works of a number of authors (“Key-2”). The report summarizes the main observed properties of AGNs obtained in the Program based on the RATAN-600 instantaneous spectra for a large sample of extragalactic objects with VLBI compact components. It is shown that the 6-frequency RATAN-600 1-22 GHz spectra and their long-term variability are consistent with the Hedgehog model for a relativistic jet of electrons and protons in the strong longitudinal magnetic field from an AGN nucleus. The RATAN-600 spectral support of ground-space VLBI has been performed for the projects VSOP (1997–2003) and RadioAstron (2011–2019) including a study of many AGNs with the RadioAstron detections of super-high brightness temperatures up to 10 14 K, “Key-3”). Since 2020, the work has been supplemented by a new topic of multichannel astronomy, “radio-neutrino” (“Key-4”), the current results of which show that the earlier role of the synchrotron radio emitting protons in the strong magnetic field of the jet could be underestimated in AGN astrophysics. New data of this topic will test this hypothesis.","PeriodicalId":355234,"journal":{"name":"Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115553635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0