naa a22 4500 510790089 CHVBK 20180411083316.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1134/S1063773713120025 doi (NATIONALLICENCE)springer-10.1134/S1063773713120025 Bobylev V. Pulkovo Astronomical Observatory, Russian Academy of Sciences, Pulkovskoe sh. 65, 196140, St. Petersburg, Russia aut Cepheid kinematics and the Galactic warp [Elektronische Daten] [V. Bobylev] The space velocities of 200 long-period (P>5 days) classical Cepheids with known proper motions and line-of-sight velocities whose distances were estimated from the period-luminosity relation have been analyzed. The linear Ogorodnikov-Milne model has been applied, with the Galactic rotation having been excluded from the observed velocities in advance. Two significant gradients have been found in the Cepheid velocities, ∂W/∂Y = −2.1 ± 0.7 km s−1 kpc−1 and ∂V/∂Z = 27 ± 10 km s−1 kpc−1. In such a case, the angular velocity of solid-body rotation around the Galactic X axis directed to the Galactic center is −15 ± 5 km s−1 kpc−1. Pleiades Publishing, Inc., 2013 Galactic structure nationallicence classical Cepheids nationallicence Galactic warp nationallicence Astronomy Letters Springer US; http://www.springer-ny.com 39/12(2013-12-01), 819-825 1063-7737 39:12<819 2013 39 11443 https://doi.org/10.1134/S1063773713120025 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1063773713120025 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bobylev V. Pulkovo Astronomical Observatory, Russian Academy of Sciences, Pulkovskoe sh. 65, 196140, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Astronomy Letters Springer US; http://www.springer-ny.com 39/12(2013-12-01), 819-825 1063-7737 39:12<819 2013 39 11443 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer