ST ScI Preprint #1380 . Authors: A. A. Suchkov, 1 M. McMaster 1 We find evidence for the presence of a population of numerous binaries with comparably bright components (C-binaries) among HIPPARCOS F stars that are flagged in the HIPPARCOS catalogue as single. ... The criterion is based on comparison of absolute magnitude M V obtained from the HIPPARCOS parallax and Johnson V magnitude with absolute magnitude derived from the dereddened uvby luminosity index c 0 , M c 0 . ...

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• M3: An Ideal Laboratory for Testing Stellar Evolution and Dynamics
• NStars2A: Proper motions - the NLTT and 2MASS
• Fine Guidance Sensor Instrument Handbook

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

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... Flux density at 1 GHz (/Jy): 25 . ... ADS . ... Caswell et al. 1975, A&A, 45, 239. ... Arecibo S 430 MHz =82?51 Jy, also Algonquin 46-m at 10.6 GHz (3': S=12?2 Jy), and Haystack 36-m at 15.5 GHz (2'.3: S=8.5?3.0 Jy). ... 1985, ApJ, 296, 461. VLA at 1.4 and 5 GHz (8''), plus Einstein observations. ... VLA at 327 MHz (3'.5?3'.6: S=46.3 Jy). ... ASCA and ROSAT observations. ... VLA at 1.5 GHz (6".9?6".6) and 4.8 GHz (46".4?5".6), including polarisation and comparison with ROSAT image. ...

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• G327.6+14.6
• G111.7-2.1

... Modules . ... Classes . Files . ... File List . File Members . components . ... National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# $Id: ComponentModels.h 20691 2009-07-14 03:13:54Z Malte.Marquarding $ 00027 00028 #ifndef COMPONENTS _ COMPONENTMODELS _H 00029 #define COMPONENTS _ COMPONENTMODELS _H 00030 00031 # include components / ComponentModels /ComponentType.h 00032 00033 # include components / ...

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• casacore: components package (libcasa_components)
• casacore: ComponentModels_module
• casacore: components/ComponentModels/SkyCompBase.h File Reference

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Sample fits to the SB2 observations of HD 22128 (top two frames) and HD 56495 (bottom two frames). Fits (smooth lines) to the observations (points) show the combined synthetic spectra, as well as the two component synthetic spectra. ... HD 22128 and HD 56495 are both double-lined spectroscopic binary systems with short orbital periods, which have been proposed to host magnetic Ap stars. ...

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• Observations with the Faulkes Telescopes
• Doppler Imaging and Flare Activity on HR1099
• Terry Mosely's Bulletins

Next: Combining Flat Fields Up: Preparing Your Calibration Previous: Combining Bias Frames . Similarly to the bias combination one can obtain an average dark current frame. However, one should consider whether the dark correction should really be applied: one needs a reasonable number of dark frames in order not to degrade the S/N, and obviously this takes telescope time. ... In that case, provided a good linearity of the CCD, one could do with the subtraction of an average dark frame. ...

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• USS radio sources
• List of Figures
• Nature of CCD Output

. Comment on J1130-1449 . There are two dominant components in our image. Comparison with the 15 GHz image of Kellermann et al. (1998) reveals that the western component is brighter at the higher frequency, indicating that the brighter (eastern) component in our image may have a steep spectrum. VLBApls home page . Last modified: 16 Oct 2000

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In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• The Galaxy Gallery Page 6: Comparative Morphology
• Galaxy Gallery Page II
• ESO Press Release 06/96, 16 February 1996

... 2009: . ... New Wolf-Rayet Type Star. ... It was discovered that the peculiar velocity of the star is about 50km/s, and that it was discarded from a young star cluster. ... Based on the observational data from the 6-m telescope and from other sources, it was shown with high reliability that chemically peculiar stars with strong depressions in their continuum energy distributions possess the magnetic fields and rotation periods 2 and 3 times larger, respectively, than the stars with weak depressions....

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• CH Cyg
• Optical component of GRB080319B
• Galaxy sector, archive 1994

... Survey Telescopes . ... Rapid Eye Mount telescope . ... Comet Hyakutake - 1997 . ... The most recent ESO observations of bright Comet Hyakutake have shown rapid changes in the innermost coma, within a few hundred kilometres from the cometary nucleus. This result has only become possible because of the unusual combination of a bright comet being near the Earth, together with the excellent imaging quality of the ESO 3.5-metre New Technology Telescope (NTT). ... The Inner Coma of Comet Hyakutake . ...

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• Rapid Changes in the Inner Coma of Comet Hyakutake | ESO United States
• Rapid Changes in the Inner Coma of Comet Hyakutake | ESO Ireland
• Rapid Changes in the Inner Coma of Comet Hyakutake | ESO United Kingdom

... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...

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