The ultraviolet spectrum of Beta Ori, B8 IA

Bibcode
1977A&AS...27....1S
Selvelli, P. L.; Crivellari, L.; Stalio, R.
Bibliographical reference

Astronomy and Astrophysics Supplement Series, vol. 27, Jan. 1977, p. 1-29. Research supported by the Consiglio Nazionale delle Ricerche.

Advertised on:
1
1977
Journal
Astronomy and Astrophysics Supplement Series
Number of authors
3
IAC number of authors
0
Citations
15
Refereed citations
14
Description
A Copernicus spectrum of the early-type supergiant Beta Ori, extending from 1010 to 1440 A with 0.2-A resolution and from 1710 to 3215 A with 0.4-A resolution, is described. Some 1137 absorption lines are identified, and equivalent widths and profiles are computed for selected features. It is found that: (1) the Ly-alpha line is the major feature over the entire spectrum; (2) 'metals' are mostly in the first and second state of ionization; and (3) only the resonance lines of Si III and Si IV are markedly blue-shifted by about 180 km/s, but there is no evidence of P Cyg profiles.
Type
Refereed
Supergiant stars

It may interest you

  • Refereed
    Magnetic diffusion in solar atmosphere produces measurable electric fields
    The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the associated electric field. However, attempts at measuring electric fields in the solar atmosphere are scarce, and none exist for sites where the magnetic energy is
    Wöger, Friedrich et al.

    Advertised on:

    10
    2024
    Bibcode
    2024NatCo..15.8811A
    Citations
    0
  • Refereed
    Echo-free quality factor of a multilayer axion haloscope
    We report a methodology to determine the quality factor ( Q) of wavy dark matter detectors equipped with multilayered resonators, including Fabry-Pérot interferometers and the so-called dielectric haloscope. An anechoic chamber enables the observation of the resonance frequency and its amplitude for an unlimited series of layers for the first time
    DALI Collaboration et al.

    Advertised on:

    10
    2024
    Bibcode
    2024PhRvD.110g2013H
    Citations
    0
  • Refereed
    Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars
    With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations. The European Space Agency's Human and Robotic Exploration program provides an excellent opportunity to push forward the limits of our
    Santos, Ângela R. G. et al.

    Advertised on:

    10
    2024
    Bibcode
    2024npjMG..10...96M
    Citations
    0