Journal article icon

Journal article

A signature of the donor star in the extra-galactic X-ray binary LMC X-2

Abstract:

Two nights of phase-resolved medium-resolution Very Large Telescope spectroscopy of the extra-galactic low-mass X-ray binary LMC X-2 have revealed a 0.32 ± 0.02 d spectroscopic period in the radial velocity curve of the He ii λ4686 emission line that we interpret as the orbital period. However, similar to previous findings, this radial velocity curve shows a longer term variation that is most likely due to the presence of a precessing accretion disc in LMC X-2. This is strengthened by He ii λ...

Expand abstract

Actions


Access Document


Authors


Cornelisse, R More by this author
Steeghs, D More by this author
Casares, J More by this author
Charles, PA More by this author
Expand authors...
Journal:
Monthly Notices of the Royal Astronomical Society
Volume:
381
Issue:
1
Pages:
194-200
Publication date:
2007-10-05
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:1e542971-1722-45f0-a59f-f5267b09f76a
Source identifiers:
361979
Local pid:
pubs:361979

Terms of use


Metrics



If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP