Publications

• Refereed Publications
  View my publication list at ADS, sorted chronologically or by number of citation
• Conference Proceedings
• Conference Posters
• Talks at conferences and seminars

Refereed Publications

1. Young Globular Clusters in an old S0: Clues to the Formation History of NGC 4570
   Ralf Kotulla, Uta Fritze, Peter Anders
   MNRAS 387, 1149 (2008) - arXiv:0804.1257
2. New active galactic nuclei detected in ROSAT All Sky Survey galaxies
   II. The complete dateset
   W. Kollatschny, Ralf Kotulla, W. Pietsch, K. Bischoff
   A&A 484, 897 - 915 (2008) - arXiv:0804.1917
3. Rescuing the Initial Mass Function for Arp78
   Ralf Kotulla, Uta Fritze & John S. Gallagher III
   ApJ Letters 688, 65 (2008) - arXiv:0810.1748
4. Impact of sub-solar metallicities on photometric redshifts
   Ralf Kotulla & Uta Fritze
   MNRAS Letters 393, 55 (2009) - arXiv:0811.3217
5. GALEV evolutionary synthesis models - I. Code, input physics and web-interface
   Ralf Kotulla, Uta Fritze, Peter Weilbacher & Peter Anders
   MNRAS 396, 462 (2009) - arXiv:0903.0378
6. The role of E+A and post-starburst galaxies - I. Models and model results
   Marie A. Falkenberg, Ralf Kotulla & Uta Fritze
   MNRAS 397, 1940 (2009) - arXiv:0901.1665
7. The role of E+A and post-starburst galaxies - II. Spectral Energy Distributions and comparison with observations
   Marie A. Falkenberg, Ralf Kotulla & Uta Fritze
   MNRAS 397, 1954 (2009) - arXiv:0905.0909
8. The first generation of Virgo cluster dwarf elliptical galaxies?
   Thorsten Lisker, Joachim Janz, Gerhard Hensler, Suk Kim, Soo-Chang Rey, Chiara Mastroprieto, Oliver Hielscher, Simone Weinmann, Sanjaya Paudel, Ralf Kotulla
   ApJ Letters, 706, 124 (2009) - arXiv:0910.3209
9. PHAT: Photo-z Accuracy Testing
   Hendrik Hildebrandt, et al, incl. Ralf Kotulla
   A&A 523, 31 (2010) - ArXiv:1008.0658
10. Evidence for environmentally dependent cluster disruption in M83
    Nate Bastian, et al, incl. Ralf Kotulla
    MNRAS Letters 417, 6 (2011) - ArXiv:1106.2427
11. Galaxies to the redshift desert and beyond - I. Chemically consistent modeling
    Ralf Kotulla
    submitted to MNRAS
12. Galaxies to the redshift desert and beyond - II. Comparison to observations
    Ralf Kotulla
    submitted to MNRAS

Publications in preparation

13. Galaxies to the redshift desert and beyond
    III. Stellar mass functions and the evolution of star formation activity since z=4
    Ralf Kotulla
    in prep
14. Galaxies to the redshift desert and beyond
    IV. Mass assembly histories and the formation of the Hubble sequence
    Ralf Kotulla
    in prep

Astronomy Telegrams, research updates

1. Candidate near-infrared counterpart to the faint transient neutron star X-ray binary SAX J1806.5-2215
   Ramanpreet Kaur, Ralf Kotulla, N. Degenaar, R. Wijnands, David Kaplan
   The Astronomers Telegram, #3268
2. Confirmation of near-infrared counterpart of IGR J17407-2808/CXOU J174042.0-280724
   Ramanpreet Kaur, C. Heinke, Ralf Kotulla, Arthur Eigenbrot, Andrew Schechtman-Rook, David Kaplan
   The Astronomers Telegram, #3695
3. GRB 111103B : WIYN 3.5m NIR observations
   Ralf Kotulla, Atish Kamble, David Kaplan, Nial Tanvir
   The Gamma-Ray Coordinates Network Circular, #12531

Conference Proceedings

1. Detecting metal-rich intermediate-age Globular Clusters in NGC 4570 using K-band photometry
   Ralf Kotulla, Uta Fritze, Peter Anders
   in "Young Massive Star Clusters", eds. E. Perez, R. de Grijs, R. Gonzalez Delgado
   Ap&SS 324, 347 (2009) - arXiv:0801.2318
2. A new investigation of the luminosity-metallicity relation for star-forming dwarf galaxies
   Hagen T. Meyer, Ralf Kotulla, Polychronis Papderos, Yuri Izotov, Klaus J. Fricke
   to appear in "Star-forming Dwarf Galaxies: Ariadne’s Thread in the Cosmic Labyrinth", Crete, 2008,
   eds P. Papaderos, N. Bergvall, T. Marquart and G. Östlin
   ADS - astro-ph
3. GALEV evolutionary synthesis models on the web - current status and future plans
   Ralf Kotulla, Peter Anders, Peter Weilbacher & Uta Fritze
   in "Proceedings of IAU Symposium No. 262: Stellar Populations - Planning for the next decade"
   eds. G. Bruzual & S. Charlot
   IAU Proceedings 262, 366

Conference Posters

1. Granada 2007 & AG Meeting 2007
   Using globular clusters to derive the formation history of the Virgo Lenticular NGC 4570 - Preliminary Results
   Ralf Kotulla, Uta Fritze, Peter Anders & Richard de Grijs
2. JENAM 2008:
   Impact of sub-solar metallicities and evolutionary corrections on photometric redshifts (pdf)
   Ralf Kotulla & Uta Fritze
3. JENAM 2008:
   GALEV evolutionary synthesis models on the web (pdf)
   Ralf Kotulla, Uta Fritze, Peter Weilbacher & Peter Anders
4. JENAM 2008:
   Impact of stochastic attenuation on photometric redshifts
   Thorsten Tepper Garcia, Ralf Kotulla, Akio Inoue & Ikuru Iwata
5. JENAM 2008:
   Revisiting the luminosity-metallicity relation for star-forming dwarf galaxies
   Hagen Thilo Meyer, Ralf Kotulla, Polychronis Papaderos & Yuri Izotov
6. European Weak of Astronomy and Space Sciences (EWASS/NAM/JENAM) 2009:
   Photometric redshifts from chemically consistent templates (pdf)
   Ralf Kotulla
7. European Weak of Astronomy and Space Sciences (EWASS/NAM/JENAM) 2009:
   GALEV evolutionary synthesis models: The ideal tool to model high-redshift galaxies (pdf)
   Ralf Kotulla, Uta Fritze, Peter Weilbacher & Peter Anders
8. European Weak of Astronomy and Space Sciences (EWASS/NAM/JENAM) 2009:
   Modelling galaxy transformation scenarios at z~0.4 with GALEV (pdf)
   Ralf Kotulla, Marie-Aylin Falkenberg & Uta Fritze
9. European Weak of Astronomy and Space Sciences (EWASS/NAM/JENAM) 2009:
   Arp 78 and the Universality of the Stellar Initial Mass Functions (pdf)
   Ralf Kotulla, John S. Gallagher III & Uta Fritze
10. VIIth Marseille International Cosmology Conference (Marseille, France; 2009):
    Harvesting the desert: The Universe between redshift 1 and 3
    A unified approach to modelling galaxies not only in the redshift desert (pdf)
    Ralf Kotulla
11. IAU Symposium 284: The Spectral Energy Distributions of Galaxies (Preston, UK; September 2011):
    GALEV and photometric redshifts: Galaxy evolution across cosmic times (pdf)
    Ralf Kotulla
12. Surveys and Simulations: The Real and the Virtual Universe (Heidelberg; September 2011)
    2011 Annual Meeting of the Astronomische Gesellschaft:
    Splitner-Meeting: Does the Redshift-Zero Universe look as predicted by models?
    Galaxy clusters transforming dwarfs: Insights from stellar mass maps (pdf)
    Ralf Kotulla, Hagen T. Meyer
13. Surveys and Simulations: The Real and the Virtual Universe (Heidelberg; September 2011)
    2011 Annual Meeting of the Astronomische Gesellschaft:
    GALEV evolutionary synthesis models: Current status and future plans (pdf)
    Ralf Kotulla, Peter Anders

Talks at conferences and seminars