AMBER, the near-infrared spectro-interferometric three-telescope VLTI instrument
نویسندگان
چکیده
منابع مشابه
VLTI / AMBER and VLTI / MIDI spectro - interferometric observations of the B [ e ] supergiant CPD − 57 ◦ 2874 ⋆
We present the first high spatial and spectral observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD−57◦ 2874), performed with the Very Large Telescope Interferometer (VLTI). Spectra, visibilities, and closure phase, were obtained using the beam-combiner instruments AMBER (near-IR interferometry with three 8.3 m Unit Telescopes or UTs) and MIDI (mid-IR interferometry with t...
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Send offprint requests to: G. Weigelt email: [email protected] ⋆ Based on observations made with ESO telescopes at Paranal Observatory under programme ID 074.A-9025(A).
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Abstract. We present the first spectro-interferometric observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD−57◦ 2874), performed with the Very Large Telescope Interferometer (VLTI) using the beam-combiner instruments AMBER (near-IR interferometry with three 8.3 m Unit Telescopes or UTs) and MIDI (mid-IR interferometry with two UTs). Our observations of the CSE are well fit...
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For detection of massive close-in exo-planets around other stars, a contrast of ∼ 0.3% is sufficient and can be achieved with state-of-the-art single-mode fibers as spatial filter. For lower-mass planets, much higher accuracy is neccessary. Apart from the atmosphere, there are several sources of noise which degrade the phase stability of interferometers based on bulk optics by changes in the op...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20066496