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ISO 143
(Preview)
Title: Discovery of an outflow of the very low-mass star ISO 143 Authors: V. Joergens, T. Kopytova, A. Pohl We discover that the very young very low-mass star ISO143 (M5) is driving an outflow based on spectro-astrometry of forbidden [SII] emission lines at 6716A and 6731A observed in UVES/VLT spec...
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IGR J18410-0535
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Neutron star caught feasting on clump of stellar matter With a stroke of luck, astronomers using ESA's XMM-Newton X-ray observatory have observed a neutron star in a peculiar X-ray binary system undergoing an extremely rare, intense flare. This outburst of X-rays, which lasted about four hours,...
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PSR J1614-2230
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The largest pulsating star yet observed casts doubts on exotic-matter theories. Neutron stars are living up to their name. Measurements of radio waves emanating from the most massive pulsating star yet discovered suggest that it is, indeed, made up of neutrons, rather than exotic particles, as s...
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WISE J163940.83-684738.6
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Title: WISE J163940.83-684738.6: A Y Dwarf identified by Methane Imaging Authors: C. G. Tinney, Jacqueline K. Faherty, J. Davy Kirkpatrick, Edward L. Wright, Christopher R. Gelino, Michael C. Cushing, Roger L. Griffith, Graeme Salter We have used methane imaging techniques to identify the nea...
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Epsilon Chamaeleontis association
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Title: Young stars in Epsilon Cha and their disks: disk evolution in sparse associations Authors: M. Fang, R. van Boekel, J. Bouwman, Th. Henning, W. A. Lawson, A. Sicilia-Aguilar The nearby young stellar association Epsilon Cha association has an estimated age of 3-5 Myr, making it an ideal labor...
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PSR J0828-3417
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Title: PSR B0826-34: Sometimes a RRAT Authors: A. Esamdin, D. Abdurixit, R. N. Manchester, H. B. Niu We report on the detection of sporadic, strong single pulses co-existing with a periodic weak emission in the duration of weak mode of PSR B0826-34. The intensities and durations of these pulses are...
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HD 169392A
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Title: Study of HD 169392A observed by CoRoT and HARPS Authors: S. Mathur, H. Bruntt, C. Catala, O. Benomar, G.R. Davies, R.A. Garcia, D. Salabert, J. Ballot, B. Mosser, C. Regulo, W.J. Chaplin, Y. Elsworth, R. Handberg, S. Hekker, L. Mantegazza, E. Michel, E. Poretti, M. Rainer, I.W. Roxburgh, R. S...
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PSR B0950+08
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Title: Giant pulse emission from PSR B0950+08 Authors: Ashok K. Singal, Hari Om Vats We present here the detection of giant-pulse emission from PSR B0950+08, a normal-period pulsar. The observations, made at 103 MHz and lasting for about ten months, have shown on a number of days the frequency of oc...
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Li-rich giants
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Title: Can Li-rich giants eject shells? Assembling the lithium puzzle in K giants Authors: Ramiro de la Reza, Natalia A. Drake The existence of K giant stars with high Li abundance continues to challenge the standard theory of stellar evolution. All recent extensive surveys in the Galaxy show the s...
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V4018 Sagittarii
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Symbiotic variable V4018 Sgr in outburst The symbiotic variable V4018 Sgr is undergoing an outburst, according to observations reported to the AAVSO and confirmed by spectroscopy by Ulisse Munari et al. Prompted by an observation and comment from John Bortle (Stormville, NY) (16 June 2012, visu...
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4U 1909+07
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Title: 4U 1909+07: a well-hidden pearl (Conf. Proc.) Authors: F. Fuerst, I. Kreykenbohm, L. Barragán, J. Wilms, R. E. Rothschild, S. Suchy, K. Pottschmidt (Version v2) We present the first detailed spectral and timing analysis of the High Mass X-ray Binary (HMXB) 4U 1909+07 with INTEGRAL and RXTE...
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PU Ursae Majoris
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Title: The orbital and superhump periods of the deeply eclipsing dwarf nova PU UMa Authors: Jeremy Shears, Franz-Josef Hambsch, Colin Littlefield, Ian Miller, Etienne Morelle, Roger Pickard, Jochen Pietz, Richard Sabo We report unfiltered photometry during superoutbursts of PU UMa in 2009 an...
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Nova Cygni 1923
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Title: The astronomisings of Dr. Anderson and the curious case of his disappearing nova Authors: Jeremy Shears Dr. Thomas David Anderson (1853-1932) was a Scottish amateur astronomer famed for his discovery of two bright novae: Nova Aurigae 1891 and Nova Persei 1901. He also discovered more than...
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RAFGL 4176
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Title: Observations and modelling of the massive young star AFGL 4176: From large scales to small Authors: Paul Boley, Roy van Boekel, Hendrik Linz, Jeroen Bouwman, Andrey Sobolev, Thomas Henning We present spatially-resolved mid-infrared interferometric observations of the massive young s...
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SDSS J065133.338+284423.37
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White Dwarf Binary Stars Make Merger Plans Just like corporations, stars, too, can engage in mergers and acquisitions: a new study has identified a pair of white dwarf stars heading toward a merger. White dwarfs are the hot, superdense remnants of spent stars. In a binary system called J0651, two wh...
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