BG Tri: an example of a low-inclination RW Sex-type nova-like

Bibcode
2021MNRAS.503.1431H
DOI
10.1093/mnras/stab301
Hernández, M. S.; Tovmassian, G.; Zharikov, S.; Gänsicke, B. T.; Steeghs, D.; Aungwerojwit, A.; Rodríguez-Gil, P.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society

Advertised on:
5
2021
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
7
IAC number of authors
1
Citations
5
Refereed citations
5
Description
We analyse a wealth of optical spectroscopic and photometric observations of the bright (V = 11.9) cataclysmic variable BG Tri. The Gaia DR2 parallax gives a distance d = 334(8) pc to the source, making the object one of the intrinsically brightest nova-like variables seen under a low orbital inclination angle. Time-resolved spectroscopic observations revealed an orbital period of $P_{\rm {orb}}=3.8028(24)$ h. Its spectroscopic characteristics resemble RW Sex and similar nova-like variables. We disentangled the H α emission line into two components, and show that one component forms on the irradiated face of the secondary star. We suggest that the other one originates at a disc outflow area adjacent to the L3 point.
Related projects
Representación de la variable cataclísmica SS Cygni (Chris Moran)
Binary Stars

The study of binary stars is essential to stellar astrophysics. A large number of stars form and evolve within binary systems. Therefore, their study is fundamental to understand stellar and galactic evolution. Particularly relevant is that binary systems are still the best source of precise stellar mass and radius measurements. Research lines

Pablo
Rodríguez Gil
In progress
Type
Refereed
Dwarf novae
Stellar & Interstellar Physics (FEEI)

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