Context. Some classical T Tauri stars, with intense line and continuous excess emission, show extremely complex spectral variations. Aims. We aim to map and interpret the spectral variations in one such extreme T Tauri star, namely RU Lupi, and to explore how the changes are related to stellar brightness and rotational phase. Methods. We followed the star over three observing runs, each covering a few days, collecting high-resolution optical spectra. In connection to the third run, complementary NIR spectra, multicolour photometric data, and X-ray observations were obtained. Results. The stellar photospheric absorption line spectrum is weakened by superimposed emission, and this veiling becomes extremely high on oc...
We have used the technique of spectro-astrometry to study the milli-arcsecond scale structure of the...
Context.Low-mass stars are known to exhibit strong X-ray emission during their early evolutionary st...
We have monitored the optical spectra of six T Tauri stars, AA Tau, BP Tau, CI Tau, DR Tau, RY Tau a...
Context. Some classical T Tauri stars, with intense line and continuous excess emission, show extrem...
Context. Some classical T Tauri stars, with intense line and continuous excess emission, show extrem...
International audienceContext: Most of the observed emission lines and continuum excess from young a...
Studying the process of accretion and its variability is vital in understanding a star's evolution a...
We present the first results of our observations of classical T Tauri Stars with UVES/VLT. The data...
Context. The process of accretion in classical T Tauri stars (CTTSs) has been observed to vary on di...
High spectral resolution variability studies of classical T Tauri stars (CTTS) are an essential inst...
Context.Most of the observed emission lines and continuum excess from young accreting low mass star...
High spectral resolution variability studies of classical T Tauri stars (CTTS) are an essential ins...
Context. Photospheric absorption lines in classical T Tauri stars (CTTS) are weak compared to normal...
Context. Photospheric absorption lines in classical T Tauri stars (CTTS) are weak compared to normal...
Context. The T Tauri stars with active accretion disks show veiled photospheric spectra. This is sup...
We have used the technique of spectro-astrometry to study the milli-arcsecond scale structure of the...
Context.Low-mass stars are known to exhibit strong X-ray emission during their early evolutionary st...
We have monitored the optical spectra of six T Tauri stars, AA Tau, BP Tau, CI Tau, DR Tau, RY Tau a...
Context. Some classical T Tauri stars, with intense line and continuous excess emission, show extrem...
Context. Some classical T Tauri stars, with intense line and continuous excess emission, show extrem...
International audienceContext: Most of the observed emission lines and continuum excess from young a...
Studying the process of accretion and its variability is vital in understanding a star's evolution a...
We present the first results of our observations of classical T Tauri Stars with UVES/VLT. The data...
Context. The process of accretion in classical T Tauri stars (CTTSs) has been observed to vary on di...
High spectral resolution variability studies of classical T Tauri stars (CTTS) are an essential inst...
Context.Most of the observed emission lines and continuum excess from young accreting low mass star...
High spectral resolution variability studies of classical T Tauri stars (CTTS) are an essential ins...
Context. Photospheric absorption lines in classical T Tauri stars (CTTS) are weak compared to normal...
Context. Photospheric absorption lines in classical T Tauri stars (CTTS) are weak compared to normal...
Context. The T Tauri stars with active accretion disks show veiled photospheric spectra. This is sup...
We have used the technique of spectro-astrometry to study the milli-arcsecond scale structure of the...
Context.Low-mass stars are known to exhibit strong X-ray emission during their early evolutionary st...
We have monitored the optical spectra of six T Tauri stars, AA Tau, BP Tau, CI Tau, DR Tau, RY Tau a...