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Star clusters
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Title: Early stages of cluster formation: fragmentation of massive dense cores down to ~1000 AU Authors: Aina Palau, Asunción Fuente, Josep M. Girart, Robert Estalella, Paul T. P. Ho, Álvaro Sánchez-Monge, Francesco Fontani, Gemma Busquet, Benoît Commercon, Patrick Hennebelle, Jérémie Bois...
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GJ758
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Astronomers have published an image of the coolest planet outside our solar system that has been pictured directly. The new find is more similar to our own Solar System than prior pictured exoplanets, in terms of the parent star's type and the planet's size. In two observations in May and August, an i...
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CH Cygni
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Title: The symbiotic star CH Cygni. I. An analysis of the shocked nebulae at different epochs Authors: M. Contini (1,2), R. Angeloni (1,2), P. Rafanelli (1) ((1) Dipartimento di Astronomia, University of Padova, Italy; (2) School of Physics and Astronomy, Tel-Aviv University, Israel) Context....
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NGC 2301
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NGC 2301 (also Cr 119, Mel 54 and OCL 540) is a magnitude +6.0 open cluster located 2800 light-years away in the constellation Monoceros. The cluster was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Windsor Road, Slough, on the 27...
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SWIFT J1753.5-0127
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Title: SWIFT J1753.5-0127: a surprising optical/X-ray cross-correlation function Authors: Martin Durant, Poshak Gandhi, Tariq Shahbaz, Andy Fabian, Jon Miller, V. S. Dhillon, Tom R. Marsh We have conducted optical and X-ray simultaneous observations of SWIFT J1753.5-0127 with RXTE and ULT...
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Microquasar Cyg X-3
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Title: The 2006 Radio Outburst of a Microquasar Cyg X-3: Observation and Data Authors: M. Tsuboi, T. Tosaki, N. Kuno, K. Nakanishi, T. Sawada, T. Umemoto, S. A. Trushkin, T. Kotani, N. Kawai, Y. Kurono, T. Handa, K. Kohno, T. Tsukagoshi, O. Kameya, H. Kobayashi, K. Fujisawa, A. Doi, T. Omodaka, H. Tak...
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Andromeda galaxy (M31)
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02 March 2005
Studies of the Andromeda galaxy (M31) have discovered that a smooth halo of red giant stars, similar to its globular cluster population, extending beyond a radius of 150 kiloparsecs, much bigger than originally thought (20kpc). The age of this halo will provide unique te...
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Galactic Center
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Title: Can a Satellite Galaxy Merger Explain the Active Past of the Galactic Center? Authors: Meagan Lang, Kelly Holley-Bockelmann, Tamara Bogdanovic, Pau Amaro-Seoane, Alberto Sesana Observations of the Galactic Center (GC) have accumulated a multitude of "forensic" evidence i...
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R Draconis
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Maxima of long period variable R Draconis on the 22nd June, 2010. Magnitude: 7.6-12.4 Type: Mira Position (2000): RA 16 32 40.2258, Dec +66 45 17.943
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BQ Camelopardalis
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On the 17th October, 2008, the Swift satellite detected increased activity in the 15-50 keV band for the transient pulsar and High Mass X-ray Binary V0332+53. The Be/neutron star system contains the variable BQ Cam, which the optical counterpart of the X-ray binary source V0332+53. Spin Period: ...
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NGC 3242
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NGC 3242 (also known as the Ghost of Jupiter, PK 261 32,1, ESO 568-PN5 and Caldwell 59) is a magnitude +8.6 planetary nebula located 1400 light-years away in the constellation Hydra. The nebula is easily seen in amateur telescopes and looks to most observers as a bluish-green blob. The central sta...
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R Coronae Borealis star
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Title: A cool R Coronae Borealis star Z UMi Authors: Tonu Kipper (1), Valentina Klochkova (2) ((1) - Tartu Observatory, Toravere, Estonia; (2) - Special Astrophysical Observatory RAS, Nizhnij Arkhyz, Russia) The high resolution spectra of a R CrB type star Z UMi are analysed. The atmospheric para...
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NGC 6362
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Stars Ancient and Modern? This colourful view of the globular star cluster NGC 6362 was captured by the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile. This new picture, along with a new image of the central region from the NASA/ESA Hubble Space T...
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SN1006
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This false-colour Chandra Xray telescope image of a supernova remnant shows X-rays produced by high-energy particles (blue) and multimillion-degree gas (red/green).
In spring 1006 AD, what was thought to be a "new star" suddenly appeared in the constellation Lupus,...
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Smith's Cloud
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With the help of a University of Wisconsin-Whitewater physics professor and two recent graduates, crucial information has been gathered about a giant cloud of hydrogen gas headed toward the Milky Way Galaxy. The information was gathered by Assistant Professor of Physics Robert Benjamin, and re...
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