منابع مشابه
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 کاملCaptured older stars as the reason for apparently prolonged star formation in young star clusters
The existence of older stars within a young star cluster can be interpreted to imply that star formation occurs on time scales longer than a free-fall time of a pre-cluster cloud core. Here the idea is explored that these older stars are not related to the star formation process forming the young star cluster but rather that the orbits of older field stars are focused by the collapsing pre-clus...
متن کاملThe apparently very variable potency of the anti-depressant fluoxetine.
The anti-depressant fluoxetine is widely present in the aquatic environment. Typical river concentrations are in the low ng/L range. Many ecotoxicity studies have assessed the effects of this pharmaceutical on a range of aquatic species. Some studies report that ng, or even pg, per litre concentrations cause effects, whereas other studies report that effects only occur when the water concentrat...
متن کاملAn Apparently Undescribed Infectious Exanthem *
During the past few years, patients with an unidentified acute febrile illness have appeared on the wards of the New Haven Hospital. They present similar signs and symptoms. We have been unable to recognize this syndrome as that of any of the known infectious diseases. We believe that it may be a new disease and we are taking this opportunity to report eleven cases seen in the past five years, ...
متن کاملThe MACHO Project LMC Variable Star Inventory : IV . New R Coronae Borealis
We report the discovery of two new R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC) using the MACHO project photometry database. The identiication of both stars has been connrmed spectroscopically. One is a cool RCB star (T eff 5000 K) characterized by very strong Swan bands of C 2 and violet bands of CN, and weak or absent Balmer lines, G-band and 12 C 13 C bands. The second ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1879
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/39.6.374