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The biggest stars
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What is the magic "X factor" that determines which stars become the biggest and brightest in the universe? The answer, new calculations suggest, is how dense their parent gas clouds are. Denser clouds heat up more evenly, preventing the clouds from fragmenting into lots of tiny stars an...
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Lunar Array for Radio Cosmology (LARC) project
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NASA has selected a proposal by an MIT-led team to develop plans for an array of radio telescopes on the far side of the moon that would probe the earliest formation of the basic structures of the universe. The agency announced the selection and 18 others related to future observatories on Friday, Feb...
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Russia, Korea Deal
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A bilateral agreement between Russia and South Korea was signed on Tuesday authorizing the building of a space centre in South Korea and the training of a Korean astronaut for a mission at the International Space Station (ISS).
An inter-governmental commission outlined the two projects in a p...
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Small Prototype Planet Finding Interferometer
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Title: Towards a Small Prototype Planet Finding Interferometer: The next step in planet finding and characterisation in the infrared Authors: W.C. Danchi, D. Deming, K. G. Carpenter, R. K. Barry, P. Hinz, K. J. Johnston, P. Lawson, O. Lay, J. D. Monnier, L. J. Richardson, S. Rinehart, W. Traub Duri...
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Long Period Dwarf Novae
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Title: Hubble Space Telescope STIS Spectroscopy of Long Period Dwarf Novae in Quiescence Authors: E. M. Sion, B. T. Gaensicke, K. S. Long, P. Szkody, C. Knigge, I. Hubeny, D. Demartino, Godon Patrick We present the results of a synthetic spectral analysis of HST STIS spectra of five long period dwar...
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Gliese 22
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A group of astronomers at the Universidad de Santiago de Compostela (USC) has discovered a huge planet in the star system Gliese 22, Spain's EFE news agency reported Wednesday. The finding has been reported in the Astronomy and Astrophysics magazine. [url=http://sify.com/news/fullstory.php...
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Shanghai Observatory
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The dazzling lights have forced an astronomy laboratory in Shanghai, to relocate to escape light pollution that has made it difficult to scan the night sky. The Optical Astronomy Laboratory of Shanghai Observatory now plans to shift to the neighbouring Zhejiang province to establish China's fir...
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Asteroid 2008 AZ28
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Three Racine sophomore students were notified on Monday that a celestial body they discovered during a science project had been verified as an asteroid. The students at Racine's Prairie School will be able to name the asteroid, temporarily identified as "2008 AZ28," in about four year...
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Disks and Jets
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Title: Gemini Observations of Disks and Jets in Young Stellar Objects and in Active Galaxies Authors: Peter McGregor, Michael Dopita, Ralph Sutherland, Tracy Beck, Thaisa Storchi-Bergmann, We present first results from the Near-infrared Integral Field Spectrograph (NIFS) located at Gemini...
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Smallest coronal mass ejection
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Solar physicists have observed the smallest ever coronal mass ejection (CME) - a type of explosion where plasma from the Sun is thrown out into space, sometimes striking the Earth and damaging orbiting satellites. The observation has come as a great surprise to scientists and has turned previous i...
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THINGS
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Astronomers have produced a scientific gold mine of detailed, high-quality images of nearby galaxies that is yielding important new insights into many aspects of galaxies, including their complex structures, how they form stars, the motions of gas in the galaxies, the relationship of "no...
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American Astronomical Society's meeting
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The deeper astronomers gaze into the cosmos, the more they find it's a bizarre and violent universe. The research findings from this week's annual meeting of U.S. astronomers range from blue orphaned baby stars to menacing "rogue" black holes that roam our galaxy, devouring any planet...
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Tully-Fisher relation
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Title: The Tully-Fisher Zero Point Problem Authors: Aaron A. Dutton (UCSC), Frank C. van den Bosch (MPIA), Stéphane Courteau (Queen's) A long standing problem for hierarchical disk galaxy formation models has been the simultaneous matching of the zero point of the Tully-Fisher relation and the...
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Radial velocity jitters
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Title: Accounting for velocity jitters in planet search surveys Authors: Roman V. Baluev The role of radial velocity (RV) jitters in extrasolar planet search surveys is discussed. Based on the maximum-likelihood principle, improved statistical algorithms for RV fitting and period search are...
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The Meridian project
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A major project to monitor space has been launched in Beijing. The Meridian project will create a network of ground-based observatories. The network will use a line of observatories running north to south along the 120th east longitude. They will be located in Mohe, Beijing, Wuhan, Hainan and the Z...
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