Vertical motions in the gaseous disk of the spiral galaxy NGC 3631

Bibcode
1998AstL...24..764F
Fridman, A. M.; Koruzhii, O. V.; Zasov, A. V.; Sil'chenko, O. K.; Moiseev, A. V.; Burlak, A. N.; Afanas'ev, V. L.; Dodonov, S. N.; Knapen, J.
Bibliographical reference

Astronomy Letters, Volume 24, Issue 6, November 1998, pp.764-773; Pis'ma v Astronomicheskii Zhurnal, Vol. 24, p. 883

Advertised on:
11
1998
Journal
Astronomy Letters
Number of authors
9
IAC number of authors
0
Citations
21
Refereed citations
17
Description
The velocity field of the nearly face-on galaxy NGC 3631 is derived from observations in the Hα line on the 6-m telescope of the Special Astrophysical Observatory. These optical data are compared with radio observations of this galaxy (Knapen 1997). It is argued that the two-armed spiral structure of NGC 3631 has a wave nature, and that the observed vertical gas motions represent motions in a spiral density wave.
Type
Refereed

It may interest you

  • Refereed
    A Perspective on the Milky Way Bulge Bar as Seen from the Neutron-capture Elements Cerium and Neodymium with APOGEE

    This study probes the chemical abundances of the neutron-capture elements cerium and neodymium in the inner Milky Way from an analysis of a sample of ∼2000 stars in the Galactic bulge bar spatially contained within ∣X Gal∣ < 5 kpc, ∣Y Gal∣ < 3.5 kpc, and ∣Z Gal∣ < 1 kpc, and spanning metallicities between ‑2.0 ≲ [Fe/H] ≲ +0.5. We classify the

    Sales-Silva, J. V. et al.

    Advertised on:

    4
    2024
    Bibcode
    2024ApJ...965..119S
  • Refereed
    The variability patterns of the TeV blazar PG 1553 + 113 from a decade of MAGIC and multiband observations

    PG 1553 + 113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high energy (VHE; >100 GeV) gamma-ray emitter. To better understand its properties and identify the underlying physical processes driving its variability, the MAGIC Collaboration initiated a multiyear, multiwavelength

    MAGIC Collaboration et al.

    Advertised on:

    4
    2024
    Bibcode
    2024MNRAS.529.3894M
    Citations
    0
  • Refereed
    A Very-High-Energy Gamma-Ray View of the Transient Sky

    The development of the latest generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) over recent decades has led to the discovery of new extreme astrophysical phenomena in the very-high-energy (VHE, E > 100 GeV) gamma-ray regime. Time-domain and multi-messenger astronomy are inevitably connected to the physics of transient VHE emitters

    Carosi, Alessandro et al.

    Advertised on:

    3
    2024
    Bibcode
    2024Univ...10..163C
    Citations
    0