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Stephenson 2
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Title: Red supergiants around the obscured open cluster Stephenson 2 Authors: Ignacio Negueruela, Amparo Marco, Carlos González-Fernández (Alicante), Fran Jiménez-Esteban (Spanish VO, CAB-CSIC), J. Simon Clark (Open University), Miriam Garcia (IAC), Enrique Solano (Spanish VO, CAB-CSI...
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Hercules X-1
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Title: Updating the orbital ephemeris of Her X-1; rate of decay and eccentricity of the orbit Authors: R. Staubert, D. Klochkov, J. Wilms We present an update of the orbital ephemeris of the binary X-ray pulsar Her X-1 (4U1656+35) and determine an improved value for the rate of orbital decay. In addi...
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PSR B1259-63/SS2883
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Title: Gamma-rays from binary system with energetic pulsar and Be star with aspherical wind: PSR B1259-63/SS2883 Authors: Agnieszka Sierpowska-Bartosik, Wlodek Bednarek At least one massive binary system containing an energetic pulsar, PSR B1259-63/SS2883, has been recently detected in t...
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WASP-19b
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Title: WASP-19b: the shortest period transiting exoplanet yet discovered Authors: Leslie Hebb, A.Collier-Cameron, A.H.M.J. Triaud, T.A. Lister, B. Smalley, P.F.L. Maxted, C. Hellier, D.R. Anderson, D. Pollacco, M. Gillon, D. Queloz, R.G. West, S. Bentley, B. Enoch, C.A. Haswell, K. Horne, M...
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HD 180642
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Title: Ground-based observations of the beta Cephei CoRoT main target HD 180642: abundance analysis and mode identification Authors: M. Briquet, K. Uytterhoeven, T. Morel, C. Aerts, P. De Cat, P. Mathias, K. Lefever, A. Miglio, E. Poretti, S. Martin-Ruiz, M. Paparo, M. Rainer, F. Carrier, J. Gut...
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tau Bootis A
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An extrasolar planet has been caught dragging the outer layers of its host star around with it as it orbits. The newly discovered “tail wagging the dog” phenomenon may be common among massive planets in close orbit around their stars.
Many celestial bodies begin their lives spinning quic...
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NGC 411
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Hubble Finds Appearances can be Deceptive Globular clusters are roughly spherical collections of extremely old stars, and around 150 of them are scattered around our galaxy. Hubble is one of the best telescopes for studying these, as its extremely high resolution lets astronomers see individu...
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NGC 7419
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Title: NGC 7419 as a template for red supergiant clusters Authors: Amparo Marco, Ignacio Negueruela The open cluster NGC 7419 is known to contain five red supergiants and a very high number of Be stars. However, there are conflicting reports about its age and distance that prevent a useful comparis...
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Supernova Remnant 3C 58
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Title: The Infrared Detection of the Pulsar Wind Nebula in the Galactic Supernova Remnant 3C 58 Authors: P. Slane, D. J. Helfand, S. P. Reynolds, B. M. Gaensler, A. Lemiere, Z. Wang We present infrared observations of 3C 58 with the Spitzer Space Telescope and the Canada-France-Hawaii Telescope. U...
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Protocluster G10.6-0.4
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Title: Competitive accretion in the protocluster G10.6-0.4? Authors: Tie Liu, Yuefang Wu, Jingwen Wu, Sheng-Li Qin, Huawei Zhang We present the results of high spatial resolution observations at 1.1 mm waveband, with the Submillimeter Array (SMA), towards the protocluster G10.6-0.4. The 1.1...
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OO Aquilae
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Title: CCD Times of Minima for the W UMa Binary System OO Aquilae
Authors: Kevin B. Alton
OO Aql was targeted for observation since its short orbital period (~0.5d) and eclipse duration (~3 hours) were amenable to investigation over a relatively short viewing campaign at a lo...
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ESO 456-67
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Hubble Observes Glowing, Fiery Shells of Gas It may look like something from "The Lord of the Rings," but this fiery swirl is actually a planetary nebula known as ESO 456-67. Set against a backdrop of bright stars, the rust-coloured object lies in the constellation of Sagittarius (The Ar...
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Pismis 24-1
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How heavy can a star be? This conundrum has haunted astronomers for decades. Theory indicates that there should be an upper stellar mass limit somewhere between 120 and 300 solar masses. Even though heavy stars are very bright, measurements of their masses can be complicated. The majority of the he...
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Vela supernova remnant
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Title: Measurement of the Anisotropy of Cosmic Ray Arrival Directions with IceCube Authors: The IceCube Collaboration: R. Abbasi, et al We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi TeV region in the Southern sky using data from...
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IGR J17091-3624
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Title: The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate Authors: D. Altamirano, T. Belloni, M. Linares, M. van der Klis, R. Wijnands, P. A. Curran, M. Kalamkar, H. Stiele, S. Motta, T. Munoz-Darias, P. Casella, H. Krimm We report on the first 180 days of RX...
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