Böhringer, H.; Schuecker, P.; Guzzo, L.; Collins, C. A.; Voges, W.; Cruddace, R. G.; Ortiz-Gil, A.; Chincarini, G.; De Grandi, S.; Edge, A. C. et al.; MacGillivray, H. T.; Neumann, D. M.; Schindler, S.; Shaver, P.: The ROSAT-ESO Flux Limited X-ray (REFLEX) Galaxy cluster survey. V. The cluster catalogue. Astronomy & Astrophysics 425 (1), S. 367 - 383 (2004)

Briel, U. G.; Finoguenov, A.; Henry, J. P.: XMM-Newton EPIC observation of the galaxy cluster A 3667. Astronomy & Astrophysics 426 (1), S. 1 - 9 (2004)

Conka-Nurdan, T.; Nurdan, K.; Laihem, K.; Walenta, A.H.; Fiorini, C.; Freisleben, B.; Hornel, N...; Pavel, N. A.; Strüder, L.: Preliminary results on Compton electrons in silicon drift detector. IEEE Transactions on Nuclear Science 51 (5), S. 2526 - 2532 (2004)

Davies, R. I.; Tacconi, L. J.; Genzel, R.: The nuclear gas dynamics and star formation of Markarian 231. The Astrophysical Journal 613 (2), S. 781 - 793 (2004)

de Avillez, M. A.; Breitschwerdt, D.: Volume filling factors of the ISM phases in star forming galaxies. I. The role of the disk-halo interaction. Astronomy & Astrophysics 425 (3), S. 899 - 911 (2004)

Fink, M. A.; Endler, M.; Klinger, T.: New developments of self-emitting electrostatic probes for use in high temperature plasmas. Contributions to Plasma Physics 44 (7-8), S. 668 - 676 (2004)

Gallo, L. C.; Tanaka, Y.; Boller, T.; Fabian, A. C.; Vaughan, S.; Brandt, W. N.: Long-term spectral changes in the partial-covering candidate narrow-line Seyfert 1 galaxy 1H 0707-495. Monthly Notices of the Royal Astronomical Society 353 (4), S. 1064 - 1070 (2004)

Grupe, D.; Leighly, K. M.; Burwitz, V.; Predehl, P.; Mathur, S.: Chandra observations of the narrow-line Seyfert 1 galaxy RX J2217.9-5941. The Astronomical Journal 128 (4), S. 1524 - 1528 (2004)

Lutz, D.; Sturm, E.; Genzel, R.; Spoon, H. W. W.; Stacey, G. J.: Gas near active galactic nuclei: A search for the 4.7 µm CO band. Astronomy & Astrophysics 426 (1), S. L5 - L8 (2004)

Moultaka, J.; Eckart, A.; Viehmann, T.; Mouawad, N.; Straubmeier, C.; Ott, T.; Schödel, R.: Dust embedded sources at the Galactic Center. 2 to 4 µm imaging and spectroscopy in the central parsec. Astronomy & Astrophysics 425 (2), S. 529 - 542 (2004)

Pietsch, W.; Misanovic, Z.; Haberl, F.; Hatzidimitriou, D.; Ehle, M.; Trinchieri, G.: XMM-Newton survey of the Local Group galaxy M 33. Astronomy & Astrophysics 426 (1), S. 11 - 24 (2004)

Rubio, M.; Boulanger, F.; Rantakyro, F.; Contursi, A.: Millimeter dust emission from an SMC cold molecular cloud. Astronomy & Astrophysics 425 (1), S. L1 - L4 (2004)

Rypdal, K.; Ratynskaia, S.: Fluctuation threshold and profile resilience in weakly ionized plasma in a curved, unsheared magnetic field. Physics of Plasmas 11 (10), S. 4623 - 4633 (2004)

Scholz, R.-D.; Lehmann, I.; Matute, I.; Zinnecker, H.: The nearest cool white dwarf (d ~ 4 pc), the coolest M-type subdwarf (sdM9.5), and other high proper motion discoveries. Astronomy & Astrophysics 425 (2), S. 519 - 527 (2004)

Schuecker, P.; Finoguenov, A.; Miniati, F.; Böhringer, H.; Briel, U. G.: Probing turbulence in the Coma galaxy cluster. Astronomy & Astrophysics 426 (2), S. 387 - 397 (2004)

Shaw, S. E.; Chernyakova, M.; Rodriguez, J.; Walter, R.; Kretschmar, P.; Mereghetti, S.: INTEGRAL observations of the PSR B1259-63/SS2883 system after the 2004 periastron passage. Astronomy & Astrophysics 426 (2), S. L33 - L36 (2004)

Strong, A. W.; Moskalenko, I. V.; Reimer, O.: A new determination of the extragalactic diffuse gamma-ray background from EGRET data. The Astrophysical Journal 613 (2), S. 956 - 961 (2004)

Strong, A. W.; Moskalenko, I. V.; Reimer, O.: Diffuse galactic continuum gamma rays: a model compatible with EGRET data and cosmic-ray measurements. The Astrophysical Journal 613 (2), S. 962 - 976 (2004)

Szkody, P.; Henden, A.; Fraser, O.; Silvestri, N.; Bochanski, J.; Wolfe, M. A.; Agüeros, M.; Warner, B.; Woudt, P.; Tramposch, J. et al.; Homer, L.; Schmidt, G.; Knapp, G. R.; Anderson, S. F.; Covey, K.; Harris, H.; Hawley, S.; Schneider, D. P.; Voges, W.; Brinkmann, J.: Cataclysmic variables from the Sloan Digital Sky Survey. III. The third year. The Astronomical Journal 128 (4), S. 1882 - 1893 (2004)

Pokhotelov, O. A.; Sagdeev, R. Z.; Balikhin, M. A.; Treumann, R. A.: Mirror instability at finite ion-Larmor radius wavelengths. Journal of Geophysical Research 109, A09213 (2004)