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Monthly Archives: February 2012
Atomic data user-producer community developments: the AstroAtom blog
Claudio Mendoza (IVIC/CeCalCULA, Venezuela), Efrain Gatuzz (IVIC, Venezuela), Valentina Luridiana (IAC, Spain), Manuel Bautista (WMSU, USA) Talk given at the VAMDC Annual Meeting, University of Vienna, Austria, 23 February 2012.
Posted in Atomic databases
Tagged AstroAtom, atomic data user-producer communities, scientific blog, VAMDC
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VAMDC portal demo
Nikolai Pishkunov (Uppsala University, Sweden) & Kevin Benson (UCL/MSSL, UK) Talk given at the VAMDC Annual Meeting, University of Vienna, Austria, 24 February 2012.
Angular momentum changing transitions in proton-Rydberg atom collisions
D. Vrinceanu (1) , R. Onofrio (2,3) and H. R. Sadeghpour (3) ((1) Texas Southern University, Houston, TX, USA; (2)Universitá di Padova, Padova, Italy; (3) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA) Collisions between electrically charged particles and neutral atoms are central for understanding the dynamics … Continue reading
Detection of the Second r-process Peak Element Tellurium in Metal-Poor Stars
Ian U. Roederer (3), James E. Lawler (4), John J. Cowan (5), Timothy C. Beers (6,7,8), Anna Frebel (9), Inese I. Ivans (10), Hendrik Schatz (7,8,11), Jennifer S. Sobeck (12), Christopher Sneden (13) ((3) Carnegie Observatories, CA, USA; (4) University … Continue reading
Posted in Atomic data applications
Tagged hubble, neutral tellurium, nucleosynthesis, star
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On the sodium overabundance of giants in open clusters: The case of the Hyades
Rodolfo Smiljanic (European Southern Observatory, Garching bei München, Germany) Sodium abundances have been determined in a large number of giants of open clusters but conflicting results, ranging from solar values to overabundances of up to five orders of magnitude, have … Continue reading
Posted in Atomic data applications
Tagged abundances, evolutionary model, Hyades, LTE, NLTE, red giant, sodium
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A Super-Damped Lyman-alpha QSO Absorber at z=2.2
Varsha P. Kulkarni (1), Joseph Meiring (2), Debopam Som (3), Celine Peroux (4), Donald G. York (5), Pushpa Khare (6), James T. Lauroesch (7) ((1) University of South Carolina, Columbia, USA; (2) University of Massachusetts, Amherst, USA; (3) University of … Continue reading
On the RL/CEL discrepancy
Grazyna Stasinska Grazyna Stasinska (LUTH, Observatoire de Paris, Meudon, France) The discrepancy between abundances derived from collisionally excited lines (CEL) and recombination lines (RL) in H II regions and planetary nebulae is still not fully understood. As I understand, the effective recombination rates … Continue reading
Introducing the AAS Laboratory Astrophysics Division
Paul Drake, Steve Federman, Wick Haxton, Farid Salama and Daniel Savin (LAD Steering Committee) You are invited to attend the inaugural gathering of the Laboratory Astrophysics Division (LAD) of the American Astronomical Society (AAS) during the 220th AAS meeting in Anchorage, Alaska, … Continue reading
Posted in Atomic data applications, Atomic data production
Tagged AAS, laboratory astrophysics
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