Search Results - "DAMBIS, A"

Kinematics of OB-associations in Gaia epoch by Mel'nik, A. M., Dambis, A. K.

“…Abstract We use stellar proper motions from the Tycho-Gaia Astrometric Solution (TGAS) catalogue to study the kinematics of OB-associations. The TGAS proper…”
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Internal motions in OB associations with Gaia DR2 by Melnik, A M, Dambis, A K

“…ABSTRACT We study the motions inside 28 OB associations with the use of Gaia DR2 proper motions. The average velocity dispersion calculated for 28 OB…”
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Periodic changes in the morphology of the Galactic resonance rings by Melnik, A M, Podzolkova, E N, Dambis, A K

“…ABSTRACT We study the periodic enhancement of either trailing or leading segments of the resonance elliptical rings in the dynamical model of the Galaxy which…”
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Distance scale for high-luminosity stars in OB associations and in field with Gaia DR2. Spurious systematic motions by Melnik, A. M., Dambis, A. K.

“…We calculated the median parallaxes for 47 OB associations including at least 10 stars with known Gaia DR2 parallaxes. A comparison between trigonometric and…”
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RR Lyrae variables: visual and infrared luminosities, intrinsic colours and kinematics by Dambis, A. K., Berdnikov, L. N., Kniazev, A. Y., Kravtsov, V. V., Rastorguev, A. S., Sefako, R., Vozyakova, O. V.

“…We use US Naval Observatory CCD Astrograph Catalogue (UCAC4) proper motions and Wide-Field Infrared Survey Explorer (WISE) W1-band apparent magnitudes and…”
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Kinematics of OB-associations and the new reduction of the Hipparcos data by Mel'nik, A. M., Dambis, A. K.

“…The proper motions of OB-associations computed using the old and new reductions of the Hipparcos data are in good agreement with each other. The Galactic…”
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Kinematics and multiband period–luminosity–metallicity relation of RR Lyrae stars via statistical parallax by Muhie, T D, Dambis, A K, Berdnikov, L N, Kniazev, A Y, Grebel, E K

“…ABSTRACT This paper presents results from photometric and statistical-parallax analysis of a sample of 850 field RR Lyrae (RRL) variables. The photometric and…”
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Influence of the Galactic bar on the kinematics of the disc stars with Gaia EDR3 data by Melnik, A M, Dambis, A K, Podzolkova, E N, Berdnikov, L N

“…ABSTRACT A model of the Galaxy with the outer ring R1R2 can explain the observed distribution of the radial, VR, and azimuthal, VT, velocity components along…”
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Mid-infrared period-luminosity relations for globular cluster RR Lyrae by Dambis, A. K., Rastorguev, A. S., Zabolotskikh, M. V.

“…The period-metallicity-WISE W1- and W2-band luminosity relations are derived for RR Lyrae stars based on WISE epoch photometry for 360 and 275 stars in 15 and…”
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A Search for Evolutionary Changes in the Period of Classical Cepheid KN Cen by Berdnikov, L. N., Dambis, A. K.

“…All available photometry for the Cepheid KN Cen is analyzed to construct its diagram spanning a 134-year long time interval. This made it possible for the…”
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The kinematics and zero-point of the log P–〈MK〉 relation for Galactic RR Lyrae variables via statistical parallax by Dambis, A. K.

“…We use accurate absolute proper motions and Two-Micron All-Sky Survey Ks-band apparent magnitudes for 364 Galactic RR Lyrae variables to determine the…”
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Contribution of Binary Stars to the Velocity Dispersion inside OB Associations with Gaia DR2 Data by Melnik, A. M., Dambis, A. K.

“…We estimated the contribution of binary systems to the velocity dispersion inside OB-associations derived from Gaia DR2 proper motions. The maximum…”
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Kinematics of OB Associations and the First Data from the Gaia Satellite by Mel’nik, A. M., Dambis, A. K.

“…The first data release from the Gaia mission (Gaia DR1) is used to study kinematics of OB associations. The mean velocity dispersion in 18 OB associations…”
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A search for evolutionary changes in the pulsation period of the classical Cepheid V609 Cygni by Berdnikov, L. N., Pastukhova, E. N., Dambis, A. K.

“…A total of 820 magnitude estimates were made for the long-period classical Cepheid V609 Cyg ( P = 31.1  days) using the photographic plate collections of the…”
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Classical Cepheids and the spiral structure of the milky way by Dambis, A. K., Berdnikov, L. N., Efremov, Yu. N., Kniazev, A. Yu, Rastorguev, A. S., Glushkova, E. V., Kravtsov, V. V., Turner, D. G., Majaess, D. J., Sefako, R.

“…We use data on space distribution of the currently most complete sample of Cepheids with reliable distances (565 stars), located within ~5 kpc from the Sun, to…”
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A Comprehensive Study of 94 Open Clusters Based on the Data from IPHAS, GAIA DR2, and Other Sky Surveys by Yalyalieva, L. N., Chemel, A. A., Glushkova, E. V., Dambis, A. K., Klinichev, A. D.

“…We determine the color excesses, photometric distances, ages, astrometric parallaxes and proper motions for 94 open clusters in the northern part of the Milky…”
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Investigation of open clusters based on IPHAS and APASS survey data by Dambis, A K, Glushkova, E V, Berdnikov, L N, Joshi, Y C, Pandey, A K

“…We adapt the classical Q-method based on a reddening-free parameter constructed from three passband magnitudes to the filter set of Isaac Newton Telescope…”
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RRab Variable T Men: The Period Variability and the Blazhko Effect by Berdnikov, L. N., Kniazev, A. Yu, Dambis, A. K., Kravtsov, V. V.

“…In 2012–2014 we obtained 3296 CCD frames in the photometric system for the RR Lyrae star T Men with the 76-cm telescope of the South African Astronomical…”
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ASAS 160125-5150.3—the second galactic classical Cepheid with strong Blazhko effect by Berdnikov, L. N., Kniazev, A. Y., Kravtsov, V. V., Dambis, A. K.

“…In 2005–2014 we acquired a total of 135, 137 and 134 measurements in B -, V - and I c -filters, respectively, for the 5-days Cepheid ASAS 160125-5150.3. Our…”
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Kinematics and Dynamics of the Galactic Halo from RR Lyrae Variable Stars by Utkin, N. D., Dambis, A. K., Rastorguev, A. S., Klinchev, A. D., Ablimit, I., Zhao, G.

“…Based on a sample of RR Lyrae variable stars including more than 9000 objects with proper motions and distances, we have investigated the kinematics of the…”
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