Zobrazeno 1 - 10
of 25
pro vyhledávání: '"D. V. Bizyaev"'
Autor:
Petko Nedialkov, D. V. Oparin, A. Sarkisyan, A. Kostenkov, D. V. Bizyaev, A. F. Valeev, K. Atapin, O. I. Spiridonova, S. Fabrika, Y. Solovyeva, Alexander Vinokurov
We continue to search for LBV stars in galaxies outside the Local Group. In this work, we have investigated four luminous stars in NGC 4449. Multiple spectral observations carried out for J122810.94+440540.6, J122811.70+440550.9, and J122809.72+44051
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a81d740dac36e222276be88c978277cf
http://arxiv.org/abs/2208.05892
http://arxiv.org/abs/2208.05892
Autor:
Y. Solovyeva, Senay Avdan, M. Ozdogan Ela, K. Atapin, I. Akkaya Oralhan, D. V. Bizyaev, Alexander Vinokurov, Aysun Akyüz, Sinan Allak, Nazim Aksaker
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:771-782
We present the results of a search for optical candidates of Ultraluminous X-ray sources (ULXs) in two dwarf galaxies: NGC 4861 and NGC 4449 using Hubble Space Telescope {\it HST} archival data. With a precise astrometry, we confirm that NGC 4861 X1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d87f1d7e118d9e61e1e12ccfb2ce35
https://doi.org/10.1093/mnras/stab1321
https://doi.org/10.1093/mnras/stab1321
Autor:
Nicholas Fraser Boardman, Nícolas Dullius Mallmann, Sandro Barboza Rembold, Luiz N. da Costa, D. V. Bizyaev, Médéric Boquien, J. S. Schimoia, Rogério Riffel, Guilherme S. Couto, Thaisa Storchi-Bergmann, Gabriele da Silva Ilha, Rogemar A. Riffel, Janaina Correa do Nascimento
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:4064-4079
The effect of active galactic nuclei (AGN) feedback on the host galaxy, and its role in quenching or enhancing star-formation, is still uncertain due to the fact that usual star-formation rate (SFR) indicators -- emission-line luminosities based on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee8c4c17380d0bea81cc365efadea52
https://doi.org/10.1093/mnras/staa3907
https://doi.org/10.1093/mnras/staa3907
Autor:
Dante Minniti, Kaike Pan, Roger E. Cohen, R. Contreras Ramos, J. Olivares Carvajal, Rachael L. Beaton, Ivo Saviane, D. A. García-Hernández, C. Moni Bidin, Richard R. Lane, José G. Fernández-Trincado, M. Zoccali, Doug Geisler, F. Gran, D. V. Bizyaev, Sandro Villanova, A. Rojas-Arriagada, Christian Nitschelm, F. Rojas
The second phase of the APOGEE survey is providing near-infrared, high-resolution, high signal-to-noise spectra of stars in the halo, disk, bar and bulge of the Milky Way. The near-infrared spectral window is especially important in the study of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22ac0603680732f3a14def2ca328c750
MN112 is a Galactic luminous blue variable (LBV) candidate with a circumstellar nebula. P Cygni was the first LBV discovered, and was recorded during major eruptions in the 17th century. The stars have similar spectra with strong emission hydrogen li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ca223e4b6f386b184cbd8c3a2db86db
http://arxiv.org/abs/2009.13463
http://arxiv.org/abs/2009.13463
Autor:
O. Sholukhova, A. Kostenkov, A. N. Sarkisyan, Viktor Malanushenko, Petko Nedialkov, A. Vinokurov, Yu. Solovyeva, A. F. Valeev, D. V. Bizyaev, S. N. Fabrika
We study five Luminous Blue Variable (LBV) candidates in the Andromeda galaxy and one more (MN112) in the Milky Way. We obtain the same-epoch near-infrared (NIR) and optical spectra on the 3.5-meter telescope at the Apache Point Observatory and on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::add0539287bee017eca23f4eb2cd1fa9
http://arxiv.org/abs/2008.12240
http://arxiv.org/abs/2008.12240
Autor:
Nicholas Fraser Boardman, S. F. Sanchez, Irene Cruz-González, P. Alvarez Hurtado, MaNGA Team, Timothy M. Heckman, Leticia Carigi, Jorge K. Barrera-Ballesteros, R. A. Riffel, D. V. Bizyaev, Yu Rong, Médéric Boquien, Patricia B. Tissera, Niv Drory
Publikováno v:
The Astrophysical Journal. 909:131
Star formation rate density, ΣSFR, has shown a remarkable correlation with both components of the baryonic mass kiloparsec scales (i.e., the stellar mass density and molecular gas mass density, Σ* and Σmol, respectively) for galaxies in the nearby
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c767b2fb1499132b791be7de097ce6aa
https://doi.org/10.3847/1538-4357/abd855
https://doi.org/10.3847/1538-4357/abd855
Autor:
S. R. Majewski, M. Schultheis, G. Zasowski, D. V. Bizyaev, J. Brinkmann, J. A. Holtzman, B. Tang, R. Carrera, H. Jönsson, Dante Minniti, A. Roman-Lopes, K. M. Cunha, C. Nitschelm, S. Villanova, G. Nandakumar, A. Rojas-Arriagada, Doug Geisler, Timothy C. Beers, C. Allende Prieto, Michael R. Hayden, A. E. Garcia Perez, F. Hearty, Roger E. Cohen, J. G. Fernandez-Trincado, D. P. Schneider, Claudia Maraston
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 600, pp.A14. ⟨10.1051/0004-6361/201630154⟩
Schultheis, M, Rojas-Arriagada, A, Pérez, A E G, Jönsson, H, Hayden, M, Nandakumar, G, Cunha, K, Prieto, C A, Holtzman, J A, Beers, T C, Bizyaev, D, Brinkmann, J, Carrera, R, Cohen, R E, Geisler, D, Hearty, F R, Fernández-Trincado, J G, Maraston, C, Minniti, D, Nitschelm, C, Roman-Lopes, A, Schneider, D P, Tang, B, Villanova, S, Zasowski, G & Majewski, S R 2017, ' Baade's window with APOGEE : metallicities, ages and chemical abundances ', Astronomy and Astrophysics, vol. 600, A14 . https://doi.org/10.1051/0004-6361/201630154
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 600, pp.A14. ⟨10.1051/0004-6361/201630154⟩
Schultheis, M, Rojas-Arriagada, A, Pérez, A E G, Jönsson, H, Hayden, M, Nandakumar, G, Cunha, K, Prieto, C A, Holtzman, J A, Beers, T C, Bizyaev, D, Brinkmann, J, Carrera, R, Cohen, R E, Geisler, D, Hearty, F R, Fernández-Trincado, J G, Maraston, C, Minniti, D, Nitschelm, C, Roman-Lopes, A, Schneider, D P, Tang, B, Villanova, S, Zasowski, G & Majewski, S R 2017, ' Baade's window with APOGEE : metallicities, ages and chemical abundances ', Astronomy and Astrophysics, vol. 600, A14 . https://doi.org/10.1051/0004-6361/201630154
Baade's window (BW) is one of the most observed Galactic bulge fields in terms of chemical abundances. Due to its low and homogeneous interstellar absorption it is considered as a calibration field for Galactic bulge studies. In the era of large spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e4c3cd65a7d8e4409f84e3bb0a4cf97
http://arxiv.org/abs/1702.01547
http://arxiv.org/abs/1702.01547
We study the properties of galaxies with very thin discs using a sample of 85 objects whose stellar disc radial-to-vertical scale ratio determined from photometric decomposition, exceeds nine. We present evidences of similarities between the very thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df05bfbac11f1635210eeb7a626c51e1
http://arxiv.org/abs/1612.01042
http://arxiv.org/abs/1612.01042
Autor:
Joseph F. Hennawi, I. Zehavi, Ian D. McGreer, M. Viel, Ch Yèche, Jordi Miralda-Escudé, V. Malanushenko, Adam S. Bolton, S. A. Snedden, K. Pan, J. Brinkman, D. V. Bizyaev, David H. Weinberg, D. Oravetz, David J. Schlegel, Martin White, P. Petitjean, Michael A. Strauss, Howard Brewington, A. Sheldon, E. Malanushenko, Benjamin A. Weaver, Yue Shen, N. Palanque-Delabrouille, Nicholas P. Ross, Donald P. Schneider, A. Simmons, Adam D. Myers, I. Paris, Xiaohui Fan, Jo Bovy
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 424:933-950
We measure the quasar two-point correlation function over the redshift range 2.2 ~10^{12}Msun/h with a duty cycle for the quasar activity of 1 per cent.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e8477d16402b8dfd276be3311967eba
https://doi.org/10.1111/j.1365-2966.2012.21251.x
https://doi.org/10.1111/j.1365-2966.2012.21251.x