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Gum 22
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Star Formation Everywhere You Look This image from NASA's Wide-field Infrared Survey Explorer, or WISE, highlights several star-forming regions. There are five distinct centers of star birth in this one image alone. Star-forming nebulae (called HII regions by astronomers) are clouds of gas an...
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Cool carbon stars
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Title: Cool carbon stars in the halo: new very red or distant objects Authors: N. Mauron, K.S. Gigoyan, T.R. Kendall The goal of this paper is to present and analyse a new sample of cool carbon (C)stars located in the halo. Twenty three new C stars were discovered. Spectra are typical of N-type stars wi...
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XTE J1807-294
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The millisecond X-rays pulsar XTE J1807-294, was discovered by XTE on February 21. It is a binary system. The companion has a minimum mass of about 7 Jupiters, and an orbital period of 40.1 minutes . RA = 18:07:00.0 and Dec = -29:24:30[url=http://xmm.vilspa.esa.es/external/xmm_news/items...
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U Libra
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Maxima of long period variable U Libra on the 15th March, 2010 Magnitude: 9.0 - 15.0 V Type: Mira Period: 226.59 days Position (2000): RA 15 42 03.1, Dec -21 10 51
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W Ceti
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Maxima of long period variable W Ceti on the 27th June, 2010. Magnitude: 7.6-14.4 Type: Mira Position (2000): RA 00 02 07.3891, Dec -14 40 33.065
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Helium content in old stellar systems
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Title: On a new parameter to estimate the helium content in old stellar systems Authors: F. Troisi, G. Bono, P. B. Stetson, A. Pietrinferni, A. Weiss, M. Fabrizio, I. Ferraro, A. Di Cecco, G. Iannicola, R. Buonanno, A. Calamida, F. Caputo, C. E. Corsi, M. Dall'Ora, A. Kunder, M. Monelli, M. Nonino, A....
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Globular cluster HP1
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Title: A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics Authors: Sergio Ortolani, Beatriz Barbuy, Yazan Momany, Ivo Saviane, Eduardo Bica, Lucie Jilkova, Gustavo Malta Salerno, Bruno Jungwiert The globular cluster HP1 is projected on the bulge, very close to th...
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1RXS J141256.0+792204
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Using NASA's Swift satellite, McGill University and Penn State University astronomers have identified an object that is likely one of the closest neutron stars to Earth -- and possibly the closest. The object, located in the constellation Ursa Minor, is nicknamed Calvera, after the villain in th...
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PLCK G266.6-27.3
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Title: Planck Early Results XXVI: Detection with Planck and confirmation by XMM-Newton of PLCK G266.6-27.3, an exceptionally X-ray luminous and massive galaxy cluster at z~1 Authors: Planck Collaboration: N. Aghanim, M. Arnaud, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A. J. B...
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HAT-P-13b
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Title: HAT-P-13b,c: a transiting hot Jupiter with a massive outer companion on an eccentric orbit Authors: G. A. Bakos (1,2), A. W. Howard (3), R. W. Noyes (1), J. Hartman (1), G. Torres (1), Geza Kovacs (4), D. A. Fischer (5), D. W. Latham (1), J. A. Johnson (6), G. W. Marcy (3), D. D. Sasselov (1), R. P. S...
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PG 1159-035
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Title: The pulsation modes of the pre-white dwarf PG 1159-035 Authors: J. E. S. Costa, S. O. Kepler, D. E. Winget, M. S. O'Brien, S. D. Kawaler, A. F. M. Costa, O. Giovannini, A. Kanaan, A. S. Mukadam, F. Mullally, A. Nitta, J. L. Provençal, H. Shipman, M. A. Wood, T. J. Ahrens, A. Grauer, M. Kilic, P. A. Br...
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SNR G21.5-0.9
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Title: Infrared imaging and polarimetric observations of the pulsar wind nebula in G21.5-0.9 Authors: A. Zajczyk, Y.A. Gallant, P. Slane, S.P. Reynolds, R. Bandiera, C. Gouiffès, E. Le Floc'h, F. Comerón, L. Koch Miramond We present infrared observations of G21.5-0.9 with the Very Large Telesc...
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Berkeley 31, Berkeley 23 and King 8
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Title: Three new bricks in the wall: Berkeley 23, Berkeley 31, and King 8 Authors: Michele Cignoni (1 and 2), Giacomo Beccari (3), Angela Bragaglia (2), Monica Tosi (2) ((1) Dipartimento di Astronomia, Universita' di Bologna, Italy, (2) INAF-Osservatorio Astronomico di Bologna, Italy, (3) ESO,...
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HD80606b
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Astronomers have found a planet with a galactic case of hot flashes. In just six hours, this planet four times the size of Jupiter heats up by more than 1,200 degrees, according to a study published in Thursday's issue of the journal Nature. "It's the first observation of changing weather"...
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Ara OB 1a Association
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Title: The Ara OB 1a Association Authors: Scott J. Wolk, Fernando Comeron, Tyler Bourke The Ara OB1a association is one of the closest sites where triggered star formation is visible for multiple generations of massive stars. At about 1.3 kpc distance, it contains complex environments including...
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