Monthly Archives: May 2014

The diagnostic potential of Fe lines applied to protostellar jets

Giannini, T. (1); Nisini, B. (1); Antoniucci, S. (1); Alcalá, J. M. (2); Bacciotti, F. (3); Bonito, R. (4,5); Podio, L. (6); Stelzer, B. (4); Whelan, E. T. (7) (1) INAF-Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monte Porzio Catone, Italy; (2) INAF-Osservatorio Astronomico di Capodimonte, via Moiariello 16, I-80131 … Continue reading

Posted in Atomic data applications | Tagged , , , | Leave a comment

Atomic data for S II – Toward Better Diagnostics of Chemical Evolution in High-redshift Galaxies

Romas Kisielius (1), Varsha P. Kulkarni (2), Gary J. Ferland (3), Pavel Bogdanovich (1), Matt L. Lykins (3) (1) Institute of Theoretical Physics and Astronomy, Vilnius University, A. Gostauto 12, LT-01108, Lithuania,  (2) Department of Physics and Astronomy, University of … Continue reading

Posted in Atomic data production | Tagged , | Leave a comment

Upgrading electron temperature and electron density diagnostic diagrams of forbidden line emission

Bastian Proxauf (1), Silvia Oettl (1), Stefan Kimeswenger (2,1) (1) Astro- and Particle Physics University Innsbruck, Austria, (2) Astronomia Universidad Catolica del Norte Antofagasta, Chile. Diagnostic diagrams of forbidden lines have been a useful tool for observers in astrophysics for … Continue reading

Posted in Atomic data applications | Tagged , , | Leave a comment

Energy levels, radiative rates and electron impact excitation rates for transitions in Si II

KM Aggarwal, FP Keenan Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, Northern Ireland, UK. Energies for the lowest 56 levels, belonging to the 3s^23p, 3s3p^2, 3p^3, 3s^23d, 3s3p3d, 3s^24l and 3s^25l configurations of … Continue reading

Posted in Atomic data production | Tagged , | Leave a comment

Energy levels, radiative rates and electron impact excitation rates for transitions in Al X

Aggarwal, Kanti M.; Keenan, Francis P. Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, Northern Ireland, UK. Energy levels, radiative rates and lifetimes are calculated among the lowest 98 levels of the n ≤ 4 configurations of Be-like … Continue reading

Posted in Atomic data production | Tagged , | Leave a comment

Testing the existence of non-Maxwellian electron distributions in H II regions after assessing atomic data accuracy

C. Mendoza(1,2), M. A. Bautista (1) (1) Department of Physics, Western Michigan University, Kalamazoo, MI 49008, USA, (2) Centro de Física, Instituto Venezolano de Investigaciones Científicas (IVIC), PO Box 20632, Caracas 1020A, Venezuela. The classic optical nebular diagnostics [N II], … Continue reading

Posted in Atomic data applications, Atomic data production | Tagged , , , , | Leave a comment

Physical properties of the interstellar medium using high-resolution Chandra spectra: O K-edge absorption

E. Gatuzz (1), J. García (2), C. Mendoza (1,3), T. R. Kallman (4), M. A. Bautista (3), T. W. Gorczyca (3) (1) Centro de Física, Instituto Venezolano de Investigaciones Científicas (IVIC), PO Box 20632, Caracas 1020A, Venezuela, (2) Harvard-Smithsonian Center … Continue reading

Posted in Atomic data applications, Atomic data production | Tagged , , , , , | Leave a comment

Stellar laboratories III. New Ba V, Ba VI, and Ba VII oscillator strengths and the barium abundance in the hot white dwarfs G191-B2B and RE0503-289

T. Rauch (1), K. Werner (1), P. Quinet (2,3), J. W. Kruk (4) (1) Institute for Astronomy and Astrophysics, Eberhard Karls University, Tuebingen, Germany, (2) Astrophysique et Spectroscopie, Universite de Mons – UMONS, Belgium, (3) IPNAS, Universite de Liege, Liege, … Continue reading

Posted in Atomic data applications, Atomic data production | Tagged , , , , | Leave a comment

Stellar laboratories II. New Zn IV and Zn V oscillator strengths and their validation in the hot white dwarfs G191-B2B and RE0503-289

T. Rauch(1), K. Werner(1), P. Quinet(2, 3), and J. W. Kruk(4) (1) Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, 72076 Tübingen, Germany, e-mail: rauch@astro.uni-tuebingen.de. (2) Astrophysique et Spectroscopie, Université de … Continue reading

Posted in Atomic data applications, Atomic data production | Tagged , , , , , | 2 Comments

The continuum emission spectrum of Hf 2-2 near the Balmer limit and the ORL versus CEL abundance and temperature discrepancy

Storey, P. J.; Sochi, Taha Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK. The continuum spectrum of the planetary nebula Hf 2-2 close to the Balmer discontinuity is modelled in the context of the long-standing problem of … Continue reading

Posted in Atomic data applications | Tagged , , , | Leave a comment