Journal article icon

Journal article

Optical spectroscopy of the low-mass X-ray binary GX 9+9

Abstract:

Phase-resolved medium-resolution VLT spectroscopy of the low-mass X-ray binary GX 9+9 has revealed narrow C iii emission lines that move in phase relative to our new estimate of the ephemeris, and show a velocity amplitude of 230 ± 35 km s-1. We identify the origin of these lines as coming from the surface of the donor star, thereby providing the first estimate of the mass function of f(M1) ≥ 0.22 M⊙. Rotational broadening estimates together with assumptions for the mass donor give 0.07 ≤ q ≤...

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
Barnes, AD More by this author
Expand authors...
Journal:
Monthly Notices of the Royal Astronomical Society
Volume:
380
Issue:
3
Pages:
1219-1229
Publication date:
2007-09-05
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:1042076a-6cad-45c3-99a6-bf05d937ea7a
Source identifiers:
361980
Local pid:
pubs:361980

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