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1RXS J180431.1-273932
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Title: Optical identification of X-ray source 1RXS J180431.1-273932 as a magnetic cataclysmic variable Authors: N. Masetti, A. A. Nucita, P. Parisi The X-ray source 1RXS J180431.1-273932 has been proposed as a new member of the Symbiotic X-ray Binary (SyXB) class of systems, which are composed...
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PSR J1740-3052
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Title: The binary companion of PSR J1740-3052 Authors: C.G. Bassa, W.F. Brisken, G. Nelemans, I.H. Stairs, B.W. Stappers, M. Kramer We report on the identification of a near-infrared counterpart to the massive (>11 Msun) binary companion of pulsar J1740-3052. An accurate celestial positio...
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2FGL J1311.7-3429
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Title: 2FGL J1311.7-3429 Joins the Black Widow Club Authors: Roger W. Romani We have found an optical/X-ray counterpart candidate for the bright, but presently unidentified, Fermi source 2FGL J1311.7-3429. This counterpart undergoes large amplitude quasi-sinusoidal optical modulation wi...
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PSR J1809-2332
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Title: A Chandra Proper Motion for PSR J1809-2332 Authors: Adam Van Etten, Roger W. Romani, C.-Y. Ng We report on a new Chandra exposure of PSR J1809-2332, the recently discovered pulsar powering the bright EGRET source 3EG J1809-2328. By registration of field X-ray sources in an archival exposur...
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SDSS J170733.93+585059.7
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Title: A New CEMP-s RR Lyrae Star Authors: T. D. Kinman (1), W. Aoki (2), T. C. Beers (1), W.R. Brown (3) ((1) National Optical Astronomy Observatory, Tucson, AZ, USA, (2) National Astronomical Observatory of Japan, Tokyo, Japan, (3) Smithsonian Astrophysical Observatory, Cambridge, MA, USA) We...
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Possible nova in Sagittarius 07.07.12
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A possible magnitude 7.8 nova was discovered by K. Nishiyama and F. Kabashima (Japan) on the 7th July, 2012, in the constellation Sagittarius. Position (J2000): R.A. 18 20 27.26 | Dec. -27° 44' 26.3''
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OGLE-2007-BLG-514
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Title: A possible binary system of a stellar remnant in the high magnification gravitational microlensing event OGLE-2007-BLG-514 Authors: N. Miyake, A. Udalski, T. Sumi, D. P. Bennett, S. Dong, R. A. Street, J. Greenhill, I. A. Bond, A. Gould, M. Kubiak, M. K. Szymanski, G. Pietrzynski, I. Soszy...
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V447 Lyrae
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Title: Kepler Observations of V447 Lyr: An Eclipsing U Gem Cataclysmic Variable Authors: Gavin Ramsay (1), John K. Cannizzo (2,3), Steve B. Howell (4), Matt A. Wood (5), Martin Still (4,6), Thomas Barclay (4,6), Alan Smale (7), ((1) Armagh Observatory, (2) CRESST/GSFC, (3) University Maryland,...
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U Camelopardalis
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Hubble Sees Red Giant Blow a Bubble U Camelopardalis, or U Cam for short, is a star nearing the end of its life. As it begins to run low on fuel, it is becoming unstable. Every few thousand years, it coughs out a nearly spherical shell of gas as a layer of helium around its core begins to fuse. The gas ejected...
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Red dwarf binary system
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Title: Four ultra-short period eclipsing M-dwarf binaries in the WFCAM Transit Survey Authors: S.V. Nefs, J.L. Birkby, I.A.G. Snellen, S.T. Hodgkin, D.J. Pinfield, B. Sipocz, G. Kovacs, D. Mislis, R.P. Saglia, J. Koppenhofer, P.Cruz, D. Barrado, E.L. Martin, N.Goulding, H. Stoev, J. Zendeja...
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65 Ursae Majoris
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Title: Unique sextuple system: 65 Ursae Majoris Authors: P. Zasche, R. Uhlá, M. lechta, M. Wolf, P. Harmanec, J.A. Nemravová, D. Koráková Context. 65 UMa belongs to rather small group of stellar systems of higher multiplicity, whose inner and outer orbits are well-known. Methods: Photometric, s...
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Possible nova in Sagittarius
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A possible magnitude 10.2 nova was discovered K. Itagaki (Japan) on the 26th June, 2012, in the constellation Sagittarius. Position (J2000): R.A. 17 52 25.79 | Dec. -21° 26' 21.5''
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PSR J1502-5653
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Title: Radiation properties of extreme nulling pulsar J1502-5653 Authors: J. Li, A. Esamdin, R. N. Manchester, M. F. Qian, H. B. Niu We report on radiation properties of extreme nulling pulsar J1502-5653, by analysing the data acquired from the Parkes 64-m telescope at 1374 MHz. The radio emissio...
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HD 327083
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Title: VLTI/AMBER observations of the binary B[e] supergiant HD 327083 Authors: H.E. Wheelwright, W.J. de Wit, R.D. Oudmaijer, J.S. Vink HD 327083 is a luminous B type star which exhibits emission lines and an infrared excess and is therefore classified as a supergiant B[e] star. In addition, the...
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UV Ceti Type Stars
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Title: A New Method for Classifying Flares of UV Ceti Type Stars: Differences Between Slow and Fast Flares Authors: H. A. Dal, S. Evren In this study, a new method is presented to classify flares derived from the photoelectric photometry of UV Ceti type stars. This method is based on statistical anal...
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