Tag Archives: hydrogen

Applying a one-dimensional PDR model to the Taurus molecular cloud and its atomic envelope

J. S. Heiner (1) , E. Vázquez-Semadeni (1) ((1)Centro de Radioastronomía y Astrofísica (CRyA), Universidad Nacional Autónoma de México, C.P. 58190 Morelia, Michoacán, Mexico) In this contribution, we test our previously published one-dimensional PDR model for deriving total hydrogen volume … Continue reading

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Understanding hydrogen recombination line observations with ALMA and EVLA

Thomas Peters (1,2,3), Steven N. Longmore (4) and Cornelis P. Dullemond (1) ((1) Zentrum für Astronomie der Universität Heidelberg, Institut für Theoretische Astrophysik, Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany; (2) Fellow of the Baden-Württemberg Stiftung; (3) Institut für Theoretische Physik, Universität … Continue reading

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How accurately can we measure the hydrogen 2S->1S transition rate from the cosmological data?

Viatcheslav Mukhanov (1,2) Jaiseung Kim (3,4) Pavel Naselsky (3,4) TizianaTrombetti (5,6) Carlo Burigana (6,7) ((1) Arnold-Sommerfeld-Center, Department f¨ur Physik, Ludwig-Maximilians-Universit¨at M¨unchen,Theresienstr. 37, D-80333, Munich, Germany; (2) LPT de l’Ecole Normale Superieure, Chaire Blaise Pascal, 24 rue Lhomond, 75231 Paris cedex, … Continue reading

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Investigation of the electromagnetically induced transparency in era of cosmological hydrogen recombination

D. Solovyev (1,2), V. K. Dubrovich (3,4) & G. Plunien (5) ((1) V. A. Fock Institute of Physics, St. Petersburg State University, Petrodvorets, Oulianovskaya 1, 198504, St. Petersburg, Russia; (2) Max-Planck-Institut f¨ur Physik Komplexer Systeme, D-01187, Germany (3) St. Petersburg … Continue reading

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QED model of the radiation escape from the matter

T. Zalialiutdinov (1), D. Solovyev (1) and L. Labzowsky (1,2) ((1) V. A. Fock Institute of Physics, St. Petersburg State University, Petrodvorets, Oulianovskaya 1, 198504, St. Petersburg, Russia; (2) Petersburg Nuclear Physics Institute, 188300, Gatchina, St. Petersburg, Russia) A simple … Continue reading

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QED theory of the multiphoton cascade transitions in atoms

L. Labzowsky (1,2), D. Solovyev (1) and T. Zalialiutdinov (1) ((1) V. A. Fock Institute of Physics, St. Petersburg State University, Petrodvorets, Oulianovskaya, St. Petersburg, Russia (2) Petersburg Nuclear Physics Institute, 188300, Gatchina, St. Petersburg, Russia) QED theory of multiphoton … Continue reading

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Collision rates and the determination of atmospheric parameters

Claudio Mendoza (IVIC/CeCalCULA) The difficulties to obtain accurate atomic data for astrophysical applications are well known, and perhaps reinforced in the many entries in this forum. But we have not come across discrepancies of six orders of magnitude in atomic data until the … Continue reading

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