Merged catalogue of reflection nebulae
Several catalogues of reflection nebulae are merged to create a uniformcatalogue of 913 objects. It contains revised coordinates,cross-identifications of nebulae and stars, as well as identificationswith IRAS point sources.The catalogue is only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/399/141
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Deep-sky dedication.
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The Variability of T Tauri, RY Tauri, and RW Aurigae from 1899 to 1952
We present the historical light curve of T Tau derived from photographicplates in the Harvard College Observatory archives. We find that theoptical light of T Tau varied by 2-3 (or more) mag on timescales asshort as a month prior to ~1917, consistent with the 1949 results ofLozinskii. Extreme light fluctuations of greater than 2 mag abruptlyceased in the late 1910s and, to the best of our knowledge, have notrepeated since this time. We compare the observed light variations of TTau with the T Tauri stars RY Tau and RW Aur, whose light curves we alsoconstructed from inspection of the archival plates. We find thatvariable extinction along the line of sight to the star is the mostlikely explanation for the observed light fluctuation of T Tau duringthe early part of the 20th century.
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A Variable Star and a Variable Nebula
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T Tauri and its enigmatic companion
The irregular variable star T Tauri is characterized in a review ofobservational investigations since its discovery in 1852. Photographs,maps, and spectra are provided, and the presence of CO, H2O, and H2molecules around T Tauri and the IR companion recently discovered to thesouth of the main object are discussed in detail. The IR radiation isattributed to the collapse of a protostellar envelope of about 2-3 solarmass.
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A catalogue of bright nebulosities in opaque dust clouds
Abstract image available at:http://adsabs.harvard.edu/abs/1977A&AS...29...65B
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Radio Emission from Small Galactic Nebulae at 606 MHz
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972AJ.....77..115T&db_key=AST
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Untersuchungen über Reflexionsnebel am Palomar Sky Survey I. Verzeichnis von Reflexionsnebeln
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Notes on Diffuse Galactic Nebulae
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T Tauri and Hind's nebula.
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On the variable nebulæ of Hind and Struve in Taurus, and on the nebulous condition of the variable star T Tauri
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NEWS@SKY (Science&Space News)
