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G35.6-0.4
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Title: Re-identification of G35.6-0.4 as a supernova remnant Authors: D. A. Green G35.6-0.4 is an extended radio source in the Galactic plane which has previously been identified as either a supernova remnant or an HII region. Observations from the VLA Galactic Plane Survey at 1.4 GHz with a resol...
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Epsilon Ursae Majoris
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Title: Radial velocity study of the CP star Epsilon Ursae Majoris Authors: N.A. Sokolov In this Letter, the radial velocity variability of the chemically peculiar star Epsilon Ursae Majoris (epsilon UMa) from the sharp cores of the hydrogen lines is investigated. This study is based on the ELODIE...
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HD99563
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Title: A 3-D study of the photosphere of HD99563: I. Pulsation analysis Authors: L. M. Freyhammer, D. W. Kurtz, V. G. Elkin, G. Mathys, I. Savanov, W. Zima, H. Shibahashi, K. Sekiguchi We have used high-speed spectroscopy of the rapidly oscillating Ap (roAp) star HD99563 to study the pulsation ampl...
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HD 96167 b
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Name HD 96167 bDiscovered in2009 M.sin i0.68 (± 0.18) MJSemi major axis1.3 (± 0.07) AUOrbital period498.9 (± 1) daysEccentricity0.71 (± 0.04) w285 (± 7) deg.Tperi2453057 (± 5)Update21/04/09 Source
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Open Clusters ASCC21
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Title: Open Clusters ASCC21 as a Probable Birthplace of the Neutron Star Geminga Authors: V.V. Bobylev, A.T. Bajkova (Version v2) We analyse the encounters of the neutron star (pulsar) Geminga with open star clusters in the OB association OriOB1a through the integration of epicyclic orbits into...
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Bootes III stellar system
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Title: Red Clump stars in the Bootes III stellar system Authors: M. Correnti, M. Bellazzini, F.R. Ferraro We report on the detection of a population of Red Clump (RC) stars probably associated with the recently discovered stellar system Bootes III. The RC is identified as a 3 sigma peak in the Lumino...
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LHS 2397aAB
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Title: Keck Laser Guide Star Adaptive Optics Monitoring of the M8+L7 Binary LHS 2397aAB: First Dynamical Mass Benchmark at the L/T Transition Authors: Trent J. Dupuy, Michael C. Liu (IfA/Hawaii), Michael J. Ireland (Sydney) We present Keck LGS AO imaging and aperture masking observations of the...
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Simeis 147
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Simeis 147 is a supernova remnant spanning over 3 degrees of the sky. It's estimated to lie about 3000 light years from Earth, have an approximate diameter of 165 light years across, and an expansion rate of nearly 600 miles per second. The violent stellar explosion that created this object occurred...
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Monoceros radio loop
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Title: The Monoceros radio loop: temperature, brightness, spectral index and distance Authors: V. Borka Jovanovi, D. Uroevi In this paper we estimated the temperatures and brightnesses of the Monoceros radio loop at 1420, 820 and 408 MHz. Linear spectrum is estimated for mean temperatures vers...
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IC 2602
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This time of year, in the rich star fields of the deep southern constellation Carina, youll find numerous sights to hold your attention. Today we tour the Theta Carinae cluster, also called the "Southern Pleiades" because of its astronomical resemblance to the famed northern star clu...
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SAX J1808.4-3658
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Certainly one of the strangest objects in our Milky Way galaxy has been hiding as a variable X-ray source called SAX J1808.4-3658. This X-ray binary has been known to contain an accretion-powered millisecond pulsar located at a distance of 3,500 parsec (~11,500 light-years). It was also the first...
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V532 Ophiuchi
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Title: V532 Oph is a New R Coronae Borealis Star Authors: Geoffrey C. Clayton (LSU), D. Kilkenny (Univ. of the Western Cape), P. Wils (Vereniging Voor Sterrenkunde), D.L. Welch (McMaster Univ.) V532 Oph has been found to be a member of the rare, hydrogen-deficient R Coronae Borealis (RCB) stars fro...
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V645 Cygni
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Title: A new spectroscopic and interferometric study of the young stellar object V645 Cyg Authors: A. S. Miroshnichenko, K.-H. Hofmann, D. Schertl, G. Weigelt, S. Kraus, N. Manset, L. Albert, Y. Y. Balega, V. G. Klochkova, R. J. Rudy, D. K. Lynch, S. Mazuk, C. C. Venturini, R. W. Russell, K. N. Granki...
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2MASS J16262034+3925190
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The Oldest Brown Dwarf Most of the halo stars previously known are members of stellar aggregates called globular clusters. Recently, however, large deep sky surveys have improved our knowledge on old halo stars living outside those clusters. Halo stars with masses from 10 times to only a few tenth...
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NGC 4194
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Credit: X-ray: NASA/CXC/Univ of Iowa/P.Kaaret et al.; Optical: NASA/ESA/STScI/Univ of Iowa/P.Kaaret et al. This composite image of the Medusa galaxy (also known as NGC 4194) shows X-ray data from NASA's Chandra X-ray Observatory in blue and optical light from the Hubble Space Telescope in oran...
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