Bulletin Number 185 - Spectrographic observations of Nova Sagittarii.
نویسندگان
چکیده
منابع مشابه
Looking for Dust and Molecules in Nova V 4743 Sagittarii ⋆
We present 1.2 mm continuum images and spectral line observations of CO(1–0) and SiO(3–2) rotational transitions of the recent nova V4743 Sgr. The nova is detected at 1.2 mm showing a variable millimetre emission. Only upper limits of T ⋆ A = 0.06 K for CO and T ⋆ A = 0.03 K for SiO could be derived. We discuss the results in terms the nature of the millimetre emission favouring dust from a pha...
متن کاملNova Sagittarii 1994 # 1 ( V 4332 Sagittarii ) : The Discovery and Evolution of an Unusual Luminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
متن کاملSpitzer Observations of V4332 Sagittarii: Detection of Alumina Dust
We present broad-band 24, 70 and 160 μm photometry, 5-35 μm and 55-90 μm spectra of the eruptive variable V4332 Sgr from Spitzer observations. The distinguishing feature of the 5-35 μm spectrum is an unusually broad absorption feature near 10 μm at the position generally associated with silicate-rich dust. Through radiative transfer modeling, we show that this broad feature cannot arise from si...
متن کاملNova Sagittarii 1998 ( V 4633 Sgr ) – A Permanent Superhump System or an Asynchronous Polar ?
We report the results of observations of V4633 Sgr (Nova Sagittarii 1998) during 1998-2000. Two photometric periodicities were present in the light curve during the three years of observations: a stable one at P = 3.014 h, which is probably the orbital period of the underlying binary system, and a second one of lower coherence, approximately 2.5 per cent longer than the former. The latter perio...
متن کاملXMM - Newton observations of Nova LMC 2000 ⋆
We report on three X-ray observations of Nova LMC 2000 with XMM-Newton at 17, 51 and 294 days after the maximum, respectively. X-ray spectral fits show a concordant decrease of the absorbing column and the X-ray luminosity. No supersoft X-ray emission is detected. The mass of the ejected shell is determined to be (less than) 7.5 × 10 −5 M⊙. Though data are sparse, one interesting correlation be...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Lick Observatory Bulletins
سال: 1910
ISSN: 0075-9317
DOI: 10.5479/ads/bib/1910licob.6.65o