NRP Modes in a Be Star Zeta Oph
نویسندگان
چکیده
منابع مشابه
Molecular Clouds Around a Run-away O Star, ζ Oph
Molecular clouds around a run-away O star ζ Oph have been surveyed with NANTEN telescope and their streaming motion caused by ζ Oph has been detected. ζ Oph is the earliest (O9.5V) member of the Sco OB2 association and is a runaway star rapidly moving accompanied by an H II region S27. We detected 2 major filamentary cloud complexes; one complex including L156 (L156 complex) is lying across nea...
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In 2001, V2552 Oph (CD -22 12017, HadV98) quickly faded by several magnitudes in a manner typical of the R Coronae Borealis (RCB) stars. Photometry of V2552 Oph obtained over 70 years previous to 2001 shows no indication of variability. Optical spectra of this star subsequently confirmed that V2552 Oph is a member of the hydrogen deficient, carbon-rich RCB class of variables. It resembles the w...
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Context. Oxygen is the third most abundant element in the universe, but its chemistry in the interstellar medium is still not well understood. Aims. In order to critically examine the entire oxygen budget, we attempt here initially to estimate the abundance of atomic oxygen, O, in the only one region, where molecular oxygen, O2, has been detected to date. Methods. We analyse ISOCAM-CVF spectral...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1995
ISSN: 0252-9211
DOI: 10.1017/s0252921100037209