Selected publications - Walter Nowotny

For a list extracted from ADS click here,
a similar one from Google Scholar is here.

Click below to retrieve an abstract, for a PostScript version and for a PDF version of the article.


Journal Articles:

"Abundance analysis for long-period variables. II. RGB and AGB stars in the globular cluster 47 Tucanae"
Lebzelter T., Nowotny W., Hinkle K.H., Höfner S., Aringer B., 2014, A&A, 567, A143

"Synthetic photometry for carbon-rich giants. IV. An extensive grid of dynamic atmosphere and wind models"
Eriksson K., Nowotny W., Höfner S., Aringer B., Wachter A., 2014, A&A, 566, A95

The Table summarising the modelling results (input parameters, wind properties, photometric properties) can be downloaded as PDF from here.

"Is there a metallicity ceiling to from carbon stars? - A novel technique reveals a scarcity of C stars in the inner M31 disk"
Boyer M.L., et al. (Nowotny W.), 2013, ApJ, 774, 83

"Exploring wind-driving dust species in cool luminous giants. II. Constraints from photometry of M-type AGB stars"
Bladh S., Höfner S., Nowotny W., Aringer B., Eriksson K., 2013, A&A, 553, A20

"Synthetic photometry for carbon-rich giants. III. Tracing the sequence of mass-losing galactic C-type Miras "
Nowotny W., Aringer B., Eriksson K., Höfner S., 2013, A&A, 552, A20

"Large-scale environments of binary AGB stars probed by Herschel. I. Morphology statistics and case studies of R Aquarii and W Aquilae"
Mayer A., et al. (Nowotny W.), 2013, A&A 549, A69

"Comparative modelling of the spectra of cool giants"
Lebzelter T., et al. (Nowotny W.), 2012, A&A 547, A108

"Detection of an asymmetry in the envelope of the carbon Mira R Fornacis using VLTI/MIDI"
Paladini C., et al. (Nowotny W.), 2012, A&A 544, L5

"X Herculis and TX Piscium: two cases of ISM interaction with stellar winds observed by Herschel"
Jorissen A., et al. (Nowotny W.), 2011, A&A 532, A135

"Long-period variables in NGC 147 and NGC 185"
Lorenz D., Lebzelter T., Nowotny W., Telting J., Kerschbaum F., Olofsson H., Schwarz H.E., 2011, A&A 532, A78

"Synthetic photometry for carbon-rich giants. II. The effects of pulsation and circumstellar dust"
Nowotny W., Aringer B., Höfner S., Lederer M.T., 2011, A&A 529, A129

"Observing and modelling the dynamic atmosphere of the low mass-loss C-star R Sculptoris at High Angular Resolution"
Sacuto S., Aringer B., Hron J., Nowotny W., Paladini C., Verhoelst T., Höfner S., 2011, A&A 525, A42

"Abundance analysis for long period variables: Velocity effects studied with O-rich dynamic model atmospheres"
Lebzelter T., Nowotny W., Höfner S., Lederer M.T., Hinkle K.H., Aringer B., 2010, A&A 517, A6

"Line formation in AGB atmospheres including velocity effects: Molecular line profile variations of long period variables"
Nowotny W., Höfner S., Aringer B., 2010, A&A 514, A35

"Synthetic photometry for carbon-rich giants: I. Hydrostatic dust-free models"
Aringer B., Girardi L., Nowotny W., Marigo P., Lederer M.T., 2009, A&A 503, 913

"Interferometric properties of pulsating C-rich AGB stars: Intensity profiles and uniform disc diameters of dynamic model atmospheres"
Paladini C., Aringer B., Hron J., Nowotny W., Sacuto S., Höfner S., 2009, A&A 501, 1073

"Atmospheric Dynamics in Carbon-rich Miras: II. Models meet observations"
Nowotny W., Lebzelter T., Hron J., Höfner S., 2005, A&A 437, 285

"Atmospheric Dynamics in Carbon-rich Miras: I. Model atmospheres and synthetic line profiles"
Nowotny W., Aringer B., Höfner S., Gautschy-Loidl R., Windsteig W., 2005, A&A 437, 273

"A census of AGB stars in Local Group galaxies: III. The dwarf spheroidal And II"
Kerschbaum F., Nowotny W., Olofsson H., Schwarz H.E.: 2004, A&A 427, 613

"A census of AGB stars in Local Group galaxies: II. NGC 185 and NGC 147"
Nowotny W., Kerschbaum F., Olofsson H., Schwarz H.E.: 2003, A&A 403, 93

"Synthetic radii and visibilities for pulsating Red Giants"
Hron J., Nowotny W., Gautschy R., Höfner S., 2003,
in: Proc. "JENAM 2002 - The VLTI challenges for the future", Porto, Portugal, ApSS 286, 213

"A census of AGB stars in Local Group galaxies: I. Photometry of a field in M31"
Nowotny W., Kerschbaum F., Schwarz H.E., Olofsson H.: 2001, A&A 367, 557


Conference contributions and other publications:

"Modelling the AGB dust evolution"
Nowotny W., Gail H.-P., Posch T., Aringer B., 2014,
in: Proc. of "Why Galaxies Care About AGB Stars III.", ed. F. Kerschbaum, T. Lebzelter, R. Wing, ASP Conf. Ser., ?, p.?
Poster as PDF

"A new library of synthetic spectra and photometry for evolved C stars"
Eriksson K., Nowotny W., Höfner S., Aringer B., 2014,
in: Proc. of "Why Galaxies Care About AGB Stars III.", ed. F. Kerschbaum, T. Lebzelter, R. Wing, ASP Conf. Ser., ?, p.?
Poster as PDF

"Data mining for reference objects to test model atmospheres of red giant stars"
Nowotny W., Aringer B., Eriksson K., Gail H.-P., Girardi L., Höfner S., Marigo P., Mayer A. 2012,
in: Abst. of "Science from the Next Generation Imaging and Spectroscopic Surveys",
Poster as PDF

"Modelling the photometric properties of red giant stars"
Nowotny W., Aringer B., Eriksson K., Girardi L., Höfner S., Marigo P. 2011,
in: Abst. of "Surveys & Simulations - The real and the virtual universe",
Poster as PDF

"Photometric modelling of mass-losing C-type Miras"
Nowotny W., Aringer B., Höfner S., Lederer M.T., 2011,
in: Proc. of "Why Galaxies Care About AGB Stars II.", ed. F. Kerschbaum, T. Lebzelter, R. Wing, ASP Conf. Ser., 445, p.95

"Synthetic spectra and photometry for C-type Miras with dusty outflows"
Nowotny W., Aringer B., Höfner S., 2008,
in: Abst. of "Cosmic Dust - Near & Far",
Poster as PDF or PS

"The atmospheres of AGB stars: opacities, radiative transfer and models"
Aringer B., Nowotny W., Höfner S., 2008,
in: Proc. of "Perspectives in Radiative Transfer and Interferometry", ed. S. Wolf, F. Allard, Ph. Stee, EAS Publ. Ser., Vol. 28, p.67

"A multi-method approach to the outer layers of AGB stars"
Nowotny W., Aringer B., Höfner S., Hron J., Kerschbaum F., 2007,
AN, 328, No.7, p.650
Poster as PDF

"Tracing AGB Mass Loss by (Synthetic) High-Resolution IR Spectroscopy"
Nowotny W., Aringer B., Höfner S., 2007,
in: Proc. of "Why Galaxies Care About AGB Stars", ed. F. Kerschbaum, H. Olofsson, R. Wing, ASP Conf. Ser., 378, p.325
Poster as PDF

"Towards abundance determination from dynamic atmospheres"
Lederer M., Lebzelter T., Aringer B.,Nowotny W., Hron J., Uttenthaler S., Höfner S., 2006,
in: Proc. of "The 8th Torino workshop on nucleosynthesis in AGB stars", ed. C. Abia, I. Dominguez, Mem. Soc. Astron. Ital., Vol.77/3, p.1008

"Modelling NIR molecular lines for Miras"
Nowotny W., Höfner S., Aringer B., Lebzelter T., Hron J, 2005,
in: Proc. of "Stellar pulsation and evolution", ed. A.R. Walker, G. Bono, Mem. Soc. Astron. Ital., Vol.77/1, p.180
Poster as PDF

"Dynamic Model Atmospheres of Cool Giants"
Höfner S., Gautschy-Loidl R., Aringer B., Nowotny W., Hron J., Freytag B., 2005,
in: Proc. of ESO Workshop "High-resolution IR spectroscopy in Astronomy", ed. H.U. Käufl, R. Siebenmorgen, A. Moorwood, ESO Astrophysics Symposia, Springer, p.269

"Synthetic Line Profiles for Pulsating Red Giants"
Nowotny W., Aringer B., Höfner S., Gautschy-Loidl R., Hron J, Windsteig W., 2005,
in: Proc. of ESO Workshop "High-resolution IR spectroscopy in Astronomy", ed. H.U. Käufl, R. Siebenmorgen, A. Moorwood, ESO Astrophysics Symposia, Springer, p.281
Poster as PS or PDF

"Technetium in AGB stars: spectral synthesis and observations"
Uttenthaler S., Aringer B., Höfner S., Hron J., Käufl H.U., Lebzelter T, Nowotny W., 2004,
in: Proc. of "The 7th Torino Workshop on Nucleosynthesis in AGB Stars", ed. R.J. Stancliffe, M.A. Lugaro and C.A. Tout, Mem. Soc. Astron. Ital., Vol 75, p.590

"Modelling pulsating red giants: intensity profiles and visibilities"
Hron J., Nowotny W., Gautschy-Loidl R., Höfner S., Galsterer W., 2004,
in: Proc. of SPIE, Vol. 5491, p.154

"A census of AGB stars in the Milky Way and M31 subgroups of dwarf-spheroidal galaxies"
Kerschbaum F., Heiling B., Nowotny W., Spindler Ch., Olofsson H., Schwarz H.E., 2004,
in: Proc. "Variable stars in the Local Group", ed. D.W.Kurtz, K.Pollard, ASP Conf. 310, p.153

"Abundances of C and O in Red Giant Stars"
Lebzelter T., Aringer B., Nowotny W., 2003,
in: Proc. of "CNO in the Universe", ed. Charbonnel C., Schaerer D., Meynet G., ASP Conf. Series 304, p.111

"Dynamical Atmospheres and Winds of AGB stars"
Höfner S., Sandin C., Aringer B., Andersen A.C., Jorgensen U.G., Gautschy-Loidl R., Nowotny W., Hron J., 2003,
in: Proc. of "Modelling of Stellar Atmospheres", ed. Piskunov N.E., Weiss W.W., Gray D.F., IAU Symposium 210, p.353

"Synthetic and observed ISO-SWS spectra of mass losing carbon stars"
Hron J., Gautschy R., Höfner S., Nowotny W., Jorgensen U.G., 2003,
in: Proc. of "Modelling of Stellar Atmospheres", ed. Piskunov N.E., Weiss W.W., Gray D.F., IAU Symposium 210, F8

"A zero velocity layer in the atmospheres of AGB stars?"
Lebzelter T., Nowotny W., Hron J., Hinkle K.H., 2003,
in: Proc. of "Modelling of Stellar Atmospheres", ed. Piskunov N.E., Weiss W.W., Gray D.F., IAU Symposium 210, F2

"Atmospheric kinematics in AGB stars: a confrontation between theory and observations"
Nowotny W., Aringer B., Gautschy R., Höfner S., Lebzelter T., Hron J., Windsteig W., 2003,
in: Proc. of "Modelling of Stellar Atmospheres", ed. Piskunov N.E., Weiss W.W., Gray D.F., IAU Symposium 210, F3

"Disentangling late-type stars of different chemistry in extragalactic systems"
Nowotny W., Kerschbaum F.: 2002,
in: Proc. "Österreichische Astronomentagung 2002", Graz, Austria, Hvar Obs. Bulletin 26, 63
(click here for an extended, coloured version)

"In.XS: project for a future spaceborne hard x-ray sky survey"
Marty P., Nowotny W., et al., 2002,
in: Proc. of "New Visions of the X-ray Universe", ESA WPP Conf. Series
Poster as JPG-File

"In.XS: project for a future spaceborne hard x-ray sky survey"
Marty P., Nowotny W., et al., 2002,
in: Proc. of SPIE, Vol. 4497, p.1

"The AGB populations of Local Group galaxies"
Nowotny W., Kerschbaum F., Olofsson H., Schwarz H.E., 2002,
in: Proc. "Observed HR diagrams and stellar evolution", ed. T. Lejeune, J. Fernandes, ASP Conf. 274, p.472
Poster as JPG-File (1.1MB)

"Observation Report on 2000PT27"
Nowotny W., Karlsson O., 2000, Minor Planet Circular Oct. 2000, 41337

"GRB 000830: optical observations"
Jensen B.L., Pedersen H., Hjorth J., Gorosabel J., Fynbo J.P.U., Nowotny W., 2000, GRB Circular Network, 788, 1


PhD thesis (Doktorarbeit):
"The Dynamic Atmospheres of Red Giant Stars. Spectral Synthesis in High Resolution"

full document as
(63MB) or (13MB)
link to ADS


0. Titlepage, Table of Contents, Abstract:   (5.5MB) or (0.5MB)

1. Introduction:   (54MB) or (11MB)
    1.1. Setting the stage - stellar evolution and the general properties of AGB stars
    1.2. Atmospheres and spectra of AGB stars
    1.3. Atmospheric kinematics of AGB stars and observed line profile variations
    1.4. Aims and structure of the thesis

2. AGB atmospheres from the numerical point of view:   (2MB) or (1MB)
    2.1. Dynamic model atmospheres
    2.2. Spectral synthesis

3. Synthetic line profiles:   (2.5MB) or (1.5MB)
    3.1. Modelling line profile variations - the history so far
    3.2. Reproducing the global velocity structure of Miras
    3.3. A closer look at CO dv=3 lines
    3.4. Gas velocities vs. measured RVs
    3.5. Steps towards realistic models
    3.6. Quasi-static, warm molecular envelopes and dynamic model atmospheres

4. Conclusions and future prospects + Bibliography + Abbreviations + Acknowledgements:   (0.5MB) or (0.1MB)



Diplomarbeit (Master thesis):
"Suche nach AGB-Sternen in Galaxien der Lokalen Gruppe"

Zusammenfassung + Inhaltsverzeichnis

Kapitel 1: Allgemeine Einführung
  1.1. Entwicklung von Sternen mit niedriger und mittlerer Masse (0.8-8Mo)
  1.2. Sterne am AGB
  1.3. Die Lokale Gruppe
  1.4. AGB-Sterne in Galaxien der Lokalen Gruppe

Kapitel 2: Technik, Methoden
  2.1. Crowded-field Photometry
  2.2. NIR-Photometrie mit DENIS
  2.3. Visuelle Photometrie mit Wing-Filtern

Kapitel 3: Ergebnisse
  3.1. DENIS
  3.2. Wing-Filter-Methode

Referenzen