Astrophysical Bulletin最新文献_第10页

The Post-AGB Star IRAS 07253–2001: Pulsations, Long-Term Brightness Variability and Spectral Peculiarities AGB后恒星IRAS 07253–2001：脉动、长期亮度变化和光谱特性

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700098

N. P. Ikonnikova, M. A. Burlak, A. V. Dodin, A. A. Belinski, A. M. Tatarnikov, N. A. Maslennikova, S. G. Zheltoukhov, K. E. Atapin

{"title":"The Post-AGB Star IRAS 07253–2001: Pulsations, Long-Term Brightness Variability and Spectral Peculiarities","authors":"N. P. Ikonnikova, M. A. Burlak, A. V. Dodin, A. A. Belinski, A. M. Tatarnikov, N. A. Maslennikova, S. G. Zheltoukhov, K. E. Atapin","doi":"10.1134/S1990341323700098","DOIUrl":"10.1134/S1990341323700098","url":null,"abstract":"The observations and comprehensive study of intermediate initial mass stars at the late stages of evolution, and after the asymptotic giant branch (AGB) in particular, are of crucial importance to identify the common properties for the stars of given group and to reveal binaries among them. This work aims to investigate photometric and spectral peculiarities of a poorly studied post-AGB candidate and infrared source IRAS 07253–2001. We present the new multicolor (UBVR_{C}I_{C}YJHK) photometry obtained with the telescopes of the Caucasian mountain observatory and analyse it together with the data acquired by the All Sky Automated Survey for SuperNovae. We report on the detection of multiperiod brightness variability caused by pulsations. A beating of close periods, the main one of 73 days and additional ones of 68 and 70 days, leads to amplitude variations. We have also detected a long-term sine trend in brightness with a period of nearly 1800 days. We suppose it to be orbital and IRAS 07253–2001 to be binary. Based on new low-resolution spectroscopic data obtained with the 2.5-m telescope of the Caucasian mountain observatory in 2020 and 2023 in the (lambda) 3500–7500 wavelength range we have identified spectral lines and compiled a spectral atlas. We have found the [N II], [Ni II] and [S II] forbidden emission lines in the spectrum and discuss their origin. The H(alpha) line has a variable double-peaked emission component. We have derived preliminary estimates of the star’s parameters and detected a variation of radial velocity with a peak-to-peak amplitude of about 30 km s({}^{-1}).","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"348 - 363"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the Interstellar Matter at the Periphery of the Supershell Surrounding the Cyg OB1 Association in 2.12 Micron Molecular Hydrogen Line 2.12微米分子氢系中Cyg-OB1缔合物超壳层外围的星际物质分析

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323600072

D. S. Wiebe, T. G. Sitnik, A. S. Rastorguev, T. A. Lozinskaya, A. M. Tatarnikov, A. A. Tatarnikova, A. P. Topchieva, M. V. Zabolotskikh, A. A. Fedoteva, A. A. Tatarnikov

{"title":"Analysis of the Interstellar Matter at the Periphery of the Supershell Surrounding the Cyg OB1 Association in 2.12 Micron Molecular Hydrogen Line","authors":"D. S. Wiebe, T. G. Sitnik, A. S. Rastorguev, T. A. Lozinskaya, A. M. Tatarnikov, A. A. Tatarnikova, A. P. Topchieva, M. V. Zabolotskikh, A. A. Fedoteva, A. A. Tatarnikov","doi":"10.1134/S1990341323600072","DOIUrl":"10.1134/S1990341323600072","url":null,"abstract":"We present observations of the vdB 130 cluster vicinity in a narrow-band filter centered at a (2.12,mu{textrm{m}}) molecular hydrogen line performed at the Caucasus Mountain Observatory of the Lomonosov Moscow State University. The observations reveal an H({}_{2}) emission shell around vdB 130, coincident with a bright infrared shell, visible in all Spitzer bands. Also, numerous H({}_{2}) emission features are detected around infrared Blobs E and W and in the vicinity of a protocluster located to the east of the shell, in a tail of a cometary molecular cloud. H({}_{2}) emission in the vicinity of the vdB 130 cluster is mostly generated in well-developed H II regions and is of fluorescent nature. In the protocluster area, isolated spots are observed, where H({}_{2}) emission is collisionally excited and is probably related to shocks in protostellar outflows. Obtained results are discussed in the context of possible sequential star formation in the vicinity of the vdB 130 cluster, triggered by the interaction of the expanding supershell surrounding the Cyg OB1 association with the molecular cloud and an associated molecular filament.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"333 - 347"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RATAN-600 Beam Pattern and Drift Scans of Radio Sources in the Radio Telescope Operation Mode with the West Sector RATAN-600在西区射电望远镜运行模式下的波束图和无线电源漂移扫描

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700141

E. K. Majorova, N. N. Bursov, S. A. Trushkin

引用次数: 0

Selected Active Galactic Nuclei from SRG/eROSITA Survey: Optical and IR Observations in 2021 and 2022 with the 2.5-m Telescope at the Caucasian Mountain Observatory of SAI MSU SRG/eROSITA调查中选定的活动星系核：SAI MSU高加索山天文台2.5米望远镜在2021年和2022年的光学和红外观测

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700074

A. A. Belinski, A. V. Dodin, S. G. Zheltoukhov, K. A. Postnov, S. A. Potanin, A. M. Tatarnikov, A. N. Tarasenkov, N. I. Shatskii, P. S. Medvedev, G. A. Khorunzhev, A. V. Meshcheryakov, S. Yu. Sazonov, M. R. Gil’fanov

{"title":"Selected Active Galactic Nuclei from SRG/eROSITA Survey: Optical and IR Observations in 2021 and 2022 with the 2.5-m Telescope at the Caucasian Mountain Observatory of SAI MSU","authors":"A. A. Belinski, A. V. Dodin, S. G. Zheltoukhov, K. A. Postnov, S. A. Potanin, A. M. Tatarnikov, A. N. Tarasenkov, N. I. Shatskii, P. S. Medvedev, G. A. Khorunzhev, A. V. Meshcheryakov, S. Yu. Sazonov, M. R. Gil’fanov","doi":"10.1134/S1990341323700074","DOIUrl":"10.1134/S1990341323700074","url":null,"abstract":"We report the results of optical spectroscopy of eight highly variable X-ray sources—AGN candidates from all-sky survey of the eROSITA telescope of the Spectrum-Roentgen-Gamma Space Observatory—performed with the TDS spectrograph (3600–7500 Å, (Rapprox 2000)) attached to the 2.5-m telescope of the Caucasian Mountain Observatory of Sternberg Astronomical Institute of M.V. Lomonosov Moscow State University. We determined the redshifts of the sources from the emission and absorption lines in their spectra. At least five objects can be classified as Seyfert galaxies. We performed pilot infrared photometry of three distant quasars with (z>5) using the ASTRONIRCAM camera and show that on the ‘‘((z-J){-}(J-W1))’’ diagram the distant quasars studied can be confidently distinguished from Galactic red and brown dwarfs. This result proves the possibility of preliminary classification of distant X-ray quasar candidates by their IR colors for further detailed spectroscopic study on large telescopes.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"283 - 292"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71908740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observations of X-ray Binaries at the Caucasus Mountain Observatory of SAI MSU SAI MSU高加索山天文台的X射线双星观测

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700062

A. M. Cherepashchuk

{"title":"Observations of X-ray Binaries at the Caucasus Mountain Observatory of SAI MSU","authors":"A. M. Cherepashchuk","doi":"10.1134/S1990341323700062","DOIUrl":"10.1134/S1990341323700062","url":null,"abstract":"This review presents the results of observations of high-mass and low-mass X-ray binaries carried out at the Caucasus Mountain Observatory of SAI MSU over the past five years. Interpretation of these observations within the framework of complex unconventional models has led to a number of interesting results. In particular, on the basis of the secular evolutionary increase in the orbital period of the microquasar SS 433 that we discovered, we managed to prove that the relativistic object here is a black hole, and the SS 433 system itself evolves as a semi-detached system due to the fact that the distance between its components increases with time, which prevents the formation of a common envelope. In the microquasar Cyg X-3, an anomalous behavior of IR color indices with the phase of the orbital period was detected. Modeling is carried out and estimates of the parameters of this system are given. In low-mass X-ray binaries (X-ray novae), black hole masses are estimated, spectra of advection-dominated disks are constructed, and an observational justification is given for modern results of three-dimensional gas-dynamic calculations for interacting binaries.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"259 - 282"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71909337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Spectral Variability of T Corona Borealis 北半球T型日冕的快速光谱变化

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323600187

N. A. Maslennikova, A. M. Tatarnikov, A. A. Tatarnikova

引用次数: 0

Star Formation in Lenticular Galaxies with MaNGaL Mapper 利用MaNGaL映射器研究透镜星系中的恒星形成

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700153

O. K. Sil’chenko, A. V. Moiseev, D. V. Oparin, E. A. Maleeva, I. S. Proshina

{"title":"Star Formation in Lenticular Galaxies with MaNGaL Mapper","authors":"O. K. Sil’chenko, A. V. Moiseev, D. V. Oparin, E. A. Maleeva, I. S. Proshina","doi":"10.1134/S1990341323700153","DOIUrl":"10.1134/S1990341323700153","url":null,"abstract":"We present results of studying star-forming rings in six lenticular galaxies obtained with the narrow-band photometry in the H(alpha) and [N II] (lambda) 6583 emission lines using the MaNGaL tunable-filter mapper at the 2.5-m telescope of CMO of SAI MSU. The gas excitation mechanism estimated from the relation of the H(alpha) and [N II] (lambda) 6583 line fluxes occurred to be inhomogeneous along the ring: three outer rings have narrow segments of position angles, in which shocks waves dominate in the ring. Since the nature of the rings is most likely accretionary, the location of shock excitation in the outer rings indicates the direction of arrival of the external gas inflow. Star formation events in the rings are probably quite brief and effective: we mainly observe homogeneous sub-solar metallicity of the gas close to the level of local saturation of the gas chemical evolution in the star formation process and switching of the localization of the star-forming sites on a time scale of about 100 Myr. In NGC 932, we have caught the very beginning of the external gas accretion: there is still little of it in the galaxy, and the metallicity of the gas in the star-forming ring has not yet reached saturation.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"304 - 324"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71908696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology and Kinematics of Interstellar Matter in the Vicinity of Young Stars ZZ Tau and ZZ Tau IRS 年轻恒星ZZ-Tau和ZZ-Tau IRS附近星际物质的形态和运动学

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700116

A. V. Dodin, S. G. Zheltoukhov, S. A. Lamzin, S. A. Potanin, B. S. Safonov, I. A. Strakhov, A. M. Tatarnikov

{"title":"Morphology and Kinematics of Interstellar Matter in the Vicinity of Young Stars ZZ Tau and ZZ Tau IRS","authors":"A. V. Dodin, S. G. Zheltoukhov, S. A. Lamzin, S. A. Potanin, B. S. Safonov, I. A. Strakhov, A. M. Tatarnikov","doi":"10.1134/S1990341323700116","DOIUrl":"10.1134/S1990341323700116","url":null,"abstract":"The morphology and kinematics of the matter in the vicinity of\u0000young stars ZZ Tau and ZZ Tau IRS are studied. It has been found\u0000that the emission nebula (the H(alpha) filament) located\u0000southwest of these stars, as well as the Herbig–Haro object\u0000HH 393 projected onto it are moving away from ZZ Tau and\u0000ZZ Tau IRS with a radial velocity of about 50 km s({}^{-1}). On the\u0000inner edge of the western part of the H(alpha) filament, there is\u0000a cooler filament emiting in the molecular hydrogen line\u0000((lambda=2.12) (mu)m) and in the dust continuum. In the\u0000northeastern part of the studied region, a new Herbig–Haro object\u0000is discovered and assigned the number HH 1232. The presence of\u0000several more new emission nebulae is suspected. The electron\u0000density in the studied regions of the H(alpha) filament, as well\u0000as HH 393 and HH 1232 (N_{e}lesssim 100) cm({}^{-3}). Arguments are\u0000presented in favor of the fact that the dusty disk wind has\u0000created a gas-and-dust nebula around ZZ Tau IRS, along the\u0000symmetry axis of which there is a jet moving in the direction of\u0000HH 393.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"364 - 371"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71908733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gas Kinematics in the Magellanic-Type Galaxy NGC 7292 麦哲伦型星系NGC 7292的气体运动学

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S1990341323700104

A. S. Gusev, A. V. Moiseev, S. G. Zheltoukhov

引用次数: 0

Near Infrared View on the Photo-Dissociation Regions S 255, S 257, NGC 7538, and S 140 光解离区s255、s257、ngc7538和s140的近红外观测

IF 1.2 4区物理与天体物理

Astrophysical Bulletin Pub Date : 2023-11-07 DOI: 10.1134/S199034132360014X

M. S. Kirsanova, A. M. Tatarnikov, P. A. Boley, D. S. Wiebe, N. A. Maslennikova, A. A. Tatarnikov

{"title":"Near Infrared View on the Photo-Dissociation Regions S 255, S 257, NGC 7538, and S 140","authors":"M. S. Kirsanova, A. M. Tatarnikov, P. A. Boley, D. S. Wiebe, N. A. Maslennikova, A. A. Tatarnikov","doi":"10.1134/S199034132360014X","DOIUrl":"10.1134/S199034132360014X","url":null,"abstract":"We performed photometric observations of the S 255, S 257, S 140, NGC 7358, and the Orion Bar photo-dissociation regions (PDRs) at 2 (mu)m using narrow-band filters centered on the Br(gamma), H({}_{2}), and [Fe II] lines, as well as the narrow-band (K_{textrm{cont}}) and the broad-band (H) filters for continuum subtraction. The observations were done with the 2.5-m telescope of the SAI Caucasian Mountain Observatory and the near-infrared camera and spectrograph ASTRONIRCAM. We find several high-density arc-like structures in the Br(gamma) and [Fe II] images of the ionized gas in NGC 7538 and extended shells and arcs visible through the H({}_{2}) emission. The H ionization front and H({}_{2}) dissociation front are merged in NGC 7538. In S 255 and S 257 we detected only Br(gamma) emission from the H II regions and bright H({}_{2}) emission from the PDRs. The projected distance between the H ionization and H({}_{2}) dissociation fronts is approximately 0.3–0.4 pc, which cannot be explained using models of a uniform medium. Most probably, the ionized and neutral gas in these PDRs is clumpy. The H I-to-H({}_{2}) transitions in the NGC 7538, S 255, S 257 and S 140 PDRs are gradual with no sharp borders. This conclusion also agrees with the suggestion of a clumpy medium.","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 3","pages":"372 - 383"},"PeriodicalIF":1.2,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71908735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0