Two nights of phase-resolved medium-resolution Very Large Telescope spectroscopy of the extra-galactic low-mass X-ray binary LMCX-2 have revealed a 0.32 +/- 0.02 d spectroscopic period in the radial velocity curve of the HeII λ4686 emission line that we interpret as the orbital period. However, similar to previous findings, this radial velocity
This section contains the publications database that collects IAC articles published in scientific journals. Please, click on the arrow to see full search filter and sort options: author, journal, year, etc..
It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
-
A signature of the donor star in the extra-galactic X-ray binary LMCX-2Cornelisse, R. et al.102007
-
A Simple Procedure for Optimizing the Height Resolution in Spectral Line Inversions
This paper presents a method to determine how much detail of the height stratification of atmospheric parameters can be retrieved from the inversion of spectral lines (and their polarization profiles, when available) via χ2-minimization algorithms. An a priori analysis of the response functions and their correlations permits an evaluation of the
Socas-Navarro, H.Advertised on:
102004 -
A single, complete, and coherent seismic solution for five delta Scuti stars belonging to the Praesepe cluster
The present paper discusses the seismic modelling of five δ Scuti stars belonging to the Praesepe cluster. Linear analysis is confronted with observations, using refined descriptions for the effects of rotation on the determination of the global stellar parameters and on the adiabatic oscillation frequency computations. A single, complete, and
Suárez, J. C. et al.Advertised on:
102008 -
A spectral diagnostic for density-bounded HII regions
The existence of density-bounded HII regions in spiral galaxies is supported by means of a spectral indicator based on the intensity of the [OI]λ6300 forbidden line. A grid of photoionization models providing spectral information on density-bounded nebulae is presented in order to test the validity of our indicator. The indicator is applicable to
Iglesias-Páramo, J. et al.Advertised on:
102002 -
A spectroscopic atlas of post-AGB stars and planetary nebulae selected from the IRAS point source catalogue
Aims.We study the optical spectral properties of a sample of stars showing far infrared colours similar to those of well-known planetary nebulae. The large majority of them were unidentified sources or poorly known in the literature at the time when this spectroscopic survey started, some 15 years ago. Methods: .We present low-resolution optical
Suárez, O. et al.Advertised on:
102006 -
A spectroscopic study of the blue stragglers in M67
Based on spectrophotometric observations from the Guillermo Haro Observatory (Cananea, Mexico), a study of the spectral properties of the complete sample of 24 blue straggler stars (BSs) in the old Galactic open cluster M67 (NGC 2682) is presented. All spectra, calibrated using spectral standards, were recalibrated by means of photometric
Liu, G. Q. et al.Advertised on:
102008