期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 486, 期 2, 页码 2604-2617出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stz1025
关键词
ISM: abundances; galaxies: evolution; galaxies: kinematics and dynamics; galaxies: interactions; galaxies: ISM; galaxies: kinematics and dynamics
资金
- Ministry of Education and Science of the Russian Federation [14.619.21.0004, RFMEFI61914X0004]
- Russian Science Foundation (RSCF) [17-72-20119]
- Russian Foundation for Basic Research [18-32-20120]
- Leading Scientific School in astrophysics (direction: extragalactic astronomy) at Moscow State University
- Alfred P. Sloan Foundation
- U.S. Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- Brazilian Participation Group
- Carnegie Institution for Science
- Carnegie Mellon University
- Chilean Participation Group
- French Participation Group
- Harvard-Smithsonian Center for Astrophysics
- Instituto de Astrofisica de Canarias
- Johns Hopkins University
- Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo
- Lawrence Berkeley National Laboratory
- Leibniz Institut fur Astrophysik Potsdam (AIP)
- Max-Planck-Institut fur Astronomie (MPIA Heidelberg)
- Max-Planck-Institut fur Astrophysik (MPA Garching)
- Max-Planck-Institut fur Extraterrestrische Physik (MPE)
- National Astronomical Observatories of China
- New Mexico State University
- New York University
- University of Notre Dame
- Observatario Nacional/MCTI
- Ohio State University
- Pennsylvania State University
- Shanghai Astronomical Observatory
- United Kingdom Participation Group
- Universidad Nacional Autonoma de Mexico
- University of Arizona
- University of Colorado Boulder
- University of Oxford
- University of Portsmouth
- University of Utah
- University of Virginia
- University of Washington
- University of Wisconsin
- Vanderbilt University
- Yale University
- Russian Science Foundation [17-72-20119] Funding Source: Russian Science Foundation
We study three Arp' systems of peculiar galaxies, Arp 42 (NGC 5829), Am 82 (NGC 2535/36). and Arp 58 (UGC 4457), using the long-slit spectral observations carried out at the 6m telescope BTA of Special Astrophysical Observatory. Am 82 and Arp 58 are the M51-type systems. In the third system, Arp 42, there are two extremely luminous kpc-sized clumps observed at the end of the bifurcated spiral arm, however the source of perturbations remains unknown. From the emission line measurements we analyzed the distribution of gas line-of-sight velocity, velocity dispersion, and gas-phase metallicity along the slits estimated by different methods. A special attention is paid to the young regions of star formation at the peripheries of the galaxies and in tidal debris, their connection with gas kinematics and abundance. All three systems show the signs of velocity disturbances and the presence of regions of locally enhanced gas velocity dispersion, as well as the regions of diffuse ionized gas. A distribution of oxygen reveals shallow radial abundance gradients, typical for interacting systems. A faint spiral-like branches of tidal bridges that are observed in NGC 2535 and UGC 4457 may represent the remnants of pre-existing 'old' mode of spiral waves.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据