|
|
Low-mass lithium-rich AGB stars
(Preview)
Title: Low-mass lithium-rich AGB stars in the Galactic bulge: evidence for Cool Bottom Processing? Authors: Stefan Uttenthaler (1), Thomas Lebzelter (1), Sara Palmerini (2), Maurizio Busso (2), Bernhard Aringer (1), Michael T. Lederer (1) ((1) Institute for Astronomy, University of Vienna,...
|
Blobrana
|
0
|
|
|
|
|
|
Eta Chamaeleontis cluster
(Preview)
Title: Molecular Hydrogen emission from disks in the eta Chamaeleontis cluster Authors: Suzanne K. Ramsay Howat, Jane S. Greaves Disks in the 6 Myr old cluster eta Chamaeleontis were searched for emission from hot H2. Around the M3 star ECHAJ0843.3-7905 we detect circumstellar gas orbiting at ~2...
|
Blobrana
|
1
|
|
|
|
|
|
COS82
(Preview)
First Detection of Thorium in an Extragalactic Star Astronomers from the National Astronomical Observatory of Japan and Osaka Kyoiku University in Japan, have detected the element thorium in a red giant star called COS82, which lies in the Ursa Minor dwarf galaxy. Their discovery marks the first...
|
Blobrana
|
1
|
|
|
|
|
|
Metal clouds
(Preview)
Stars have Earth-like weather Studying clouds of metal could shed light on how elements form inside stars The skies of stars might experience weather like that on planets, researchers now find. The drifting clouds scientists have seen are wispy, "just like cirrus clouds on Earth" exce...
|
Blobrana
|
1
|
|
|
|
|
|
RU Lupi
(Preview)
Title: Periodic radial velocity variations in RU Lupi
Authors: H.C. Stempels, G.F. Gahm, P.P Petrov
Context. RU Lup is a Classical T Tauri star with unusually strong emission lines, which has been interpreted as manifestations of accretion. Recently, evidence ha...
|
Blobrana
|
1
|
|
|
|
|
|
Type II Cepheids
(Preview)
Title: The Chemical Compositions of the Type II Cepheids -- The BL Her and W Vir Variables Authors: Thomas Maas (1), Sunetra Giridhar (2), David L. Lambert (1) ((1) The W.J. McDonald Observatory (2) Indian Institute of Astrophysics) Abundance analyses from high-resolution optical spectra are pr...
|
Blobrana
|
2
|
|
|
|
|
|
HD 313926
(Preview)
Title: Discovery of the strongly eccentric, short-period binary nature of the B-type system HD 313926 by the MOST satellite Authors: Slavek Rucinski, Rainer Kuschnig, Jaymie M. Matthews, Wojtek Dimitrov, Theodor Pribulla, David B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Gordon A. H...
|
Blobrana
|
0
|
|
|
|
|
|
Intriguing Stars
(Preview)
The 10 Most Intriguing Stars of 2007 In Hollywood, the biggest stars are measured by their box office appeal. But in astronomy, how do you know what the phatest stars are? What makes a star so special it deserves our awe and appreciation? Some stars capture our imagination because they are the best can...
|
Blobrana
|
0
|
|
|
|
|
|
Ultra-compact binary
(Preview)
Title: The ultra-compact binary candidate KUV 23182+1007 is a bright quasar Authors: John Southworth (1), A. Schwope (2), B. T. Gaensicke (1), M Schreiber (3) ((1) University of Warwick, UK, (2) Astrophysikalisches Institut Potsdam, Germany, (3) Universidad de Valparaiso, Chile) KUV 23182+1...
|
Blobrana
|
0
|
|
|
|
|
|
The First Stellar Cluster
(Preview)
Title: The First Stellar Cluster Authors: Paul C. Clark, Simon C. O. Glover, Ralf S. Klessen We report results from numerical simulations of star formation in the early universe that focus on gas at very high densities and very low metallicities. We argue that the gas in the central regions of protog...
|
Blobrana
|
0
|
|
|
|
|
|
Protostellar objects
(Preview)
Title: Spitzer-IRAC GLIMPSE of high mass protostellar objects. I Infrared point sources and nebulae Authors: M. S. N. Kumar, J. M. C. Grave The GLIMPSE archive was used to obtain 3.6--8.0micron, point source photometry and images for 381 massive protostellar candidates lying in the Galactic mid...
|
Blobrana
|
0
|
|
|
|
|
|
Barnard 30
(Preview)
A new image from NASA's Spitzer Space Telescope shows infant stars "hatching" in the head of Orion, the famous hunter constellation visible from northern hemispheres during winter nights. Astronomers suspect that shockwaves from a 3-million-year-old explosion of a massive star ma...
|
Blobrana
|
0
|
|
|
|
|
|
Very Low Mass Objects
(Preview)
2MASS J012655.49-502238.8 and 2MASS J012702.83-502321.1 Astronomers have serendipitously discovered a record-breaking pair of low-mass objects with an extreme orbital separation. The petite objects, each of which has a mass less than 100 times that of Jupiter and could be either stars or bro...
|
Blobrana
|
1
|
|
|
|
|
|
The Red Square nebula
(Preview)
Who would have thought a ball of dust and gas could be so beautiful? The just-discovered nebula, dubbed "The Red Square", has amazed astronomers with its rare symmetrical appearance. They are excited by the possibility of a supernova. The University of Sydney team, led by Dr Peter Tuthi...
|
Blobrana
|
2
|
|
|
|
|
|
Massive Protocluster
(Preview)
Title: Evidence for a Massive Protocluster in S255N Authors: C.J. Cyganowski, C.L. Brogan, T.R. Hunter S255N is a luminous far-infrared source that contains many indications of active star formation but lacks a prominent near-infrared stellar cluster. We present mid-infrared through radio o...
|
Blobrana
|
0
|
|
|
