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), pp. 11 - 24 (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), pp. 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), pp. 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), pp. 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), pp. 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), pp. 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), pp. 1882 - 1893 (2004)

Yuan, W.; Komossa, S.; Xu, D.; Osborne, J. P.; Watson, M. G.; McMahon, R. G.: Discovery of high-amplitude X-ray variability in the Seyfert-LINER transition galaxy NGC 7589. Monthly Notices of the Royal Astronomical Society 353 (3), pp. L29 - L33 (2004)

Bonnet, H.; Abuter, R.; Baker, A.; Bornemann, W.; Brown, A.; Castillo, R.; Conzelmann, R.; Damster, R.; Davies, R.; Delabre, B. et al.; Donaldson, R.; Dumas, C.; Eisenhauer, F.; Elswijk, E.; Fedrigo, E.; Finger, G.; Gemperlein, H.; Genzel, R.; Gilbert, A.; Gillet, G.; Goldbrunner, A.; Horrobin, M.; Richter, H.; Huber, S.; Hubin, N.; Iserlohe, C.; Kaufer, A.; Kissler-Patig, M.; Kragt, J.; Kroes, G.; Lehnert, M.; Lieb, W.; Liske, J.; Lizon, J.-L.; Lutz, D.; Modigliani, A.; Monnet, G.; Nesvadba, N.; Patig, J.; Pragt, J.; Reunanen, J.; Röhrle, C.; Rossi, S.; Schmutzer, R.; Schoenmaker, T.; Schreiber, J.; Stroebele, S.; Szeifert, T.; Tacconi, L.; Tecza, M.; Thatte, N.; Tordo, S.; van der Werf, P.; Weisz, H.: First light of SINFONI at the VLT. The ESO Messenger 117, pp. 17 - 24 (2004)

Castro Cerón, J. M.; Gorosabel, J.; Castro-Tirado, A. J.; Sokolov, V. V.; Afanasiev, V. L.; Fatkhullin, T. A.; Dodonov, S. N.; Komarova, V. N.; Cherepashchuk, A. M.; Postnov, K. A. et al.; Lisenfeld, U.; Greiner, J.; Klose, S.; Hjorth, J.; Fynbo, J. P. U.; Pedersen, H.; Rol, E.; Fliri, J.; Feldt, M.; Feulner, G.; Andersen, M. I.; Jensen, B. L.; Pérez Ramirez, M. D.; Vrba, F. J.; Henden, A. A.; Israelian, G.; Tanvir, N. R.: On the constraining observations of the dark GRB 001109 and the properties of a z = 0.398 radio selected starburst galaxy contained in its error box. Astronomy & Astrophysics 424 (3), pp. 833 - 839 (2004)

Haberl, F.; Motch, C.; Zavlin, V. E.; Reinsch, K.; Gänsicke, B. T.; Cropper, M.; Schwope, A. D.; Turolla, R.; Zane, S.: The isolated neutron star X-ray pulsars RX J0420.0-5022 and RX J0806.4-4123: New X-ray and optical observations. Astronomy & Astrophysics 424 (2), pp. 635 - 645 (2004)

Hopkins, P. F.; Strauss, M. A.; Hall, P. B.; Richards, G. T.; Cooper, A. S.; Schneider, D. P.; Vanden Berk, D. E.; Jester, S.; Brinkmann, J.; Szokoly, G. P.: Dust reddening in Sloan Digital Sky Survey quasars. The Astronomical Journal 128 (3), pp. 1112 - 1123 (2004)

Mineo, T.; Cusumano, G.; Massaro, E.; Becker, W.; Nicastro, L.: Spectral and timing properties of the X-ray emission from the millisecond pulsar PSR B1821-24. Astronomy & Astrophysics 423 (3), pp. 1045 - 1050 (2004)

Reimer, A.; Reimer, O.; Schlickeiser, R.; Iyudin, A.: The Coma cluster a γ-ray energies: Multifrequency constraints. Astronomy & Astrophysics 424 (3), pp. 773 - 778 (2004)

Finoguenov, A.; Henriksen, M. J.; Briel, U. G.; de Plaa, J.; Kaastra, J. S.: XMM-Newton study of A3562 and its immediate shapley environs. The Astrophysical Journal 611 (2), pp. 811 - 820 (2004)

Gehrels, N.; Chincarini, G.; Giommi, P.; Mason, K. O.; Nousek, J. A.; Wells, A. A.; White, N. E.; Barthelmy, S. D.; Burrows, D. N.; Cominsky, L. R. et al.; Hurley, K. C.; Marshall, F. E.; Mészáros, P.; Roming, P. W. A.; Angelini, L.; Barbier, L. M.; Belloni, T.; Campana, S.; Caraveo, P. A.; Chester, M. M.; Citterio, O.; Cline, T. L.; Cropper, M. S.; Cummings, J. R.; Dean, A. J.; Feigelson, E. D.; Fenimore, E. E.; Frail, D. A.; Fruchter, A. S.; Garmire, G. P.; Gendreau, K.; Ghisellini, G.; Greiner, J.; Hill, J. E.; Hunsberger, S. D.; Krimm, H. A.; Kulkarni, S. R.; Kumar, P.; Lebrun, F.; Lloyd-Ronning, N. M.; Markwardt, C. B.; Mattson, B. J.; Mushotzky, R. F.; Norris, J. P.; Orborne, J.; Paczynski, B.; Palmer, D. M.; Park, H.-S.; Parsons, A. M.; Paul, J.; Rees, M. J.; Reynolds, C. S.; Rhoads, J. E.; Sasseen, T. P.; Schaefer, B. E.; Short, A. T.; Smale, A. P.; Smith, I. A.; Stella, L.; Tagliaferri, G.; Takahashi, T.; Tashiro, M.; Townsley, L. K.; Tueller, J.; Turner, M. J. L.; Vietri, M.; Voges, W.; Ward, M. J.; Willingale, R.; Zerbi, F. M.; Zhang, W. W.: The Swift gamma-ray burst mission. The Astrophysical Journal 611 (2), pp. 1005 - 1020 (2004)

Fan, X.; Hennawi, J. F.; Richards, G. T.; Strauss, M. A.; Schneider, D. P.; Donley, J. L.; Young, J. E.; Annis, J.; Lampeitl, H.; Lupton, R. H. et al.; Gunn, J. E.; Knapp, G. R.; Brandt, W. N.; Anderson, S.; Bahcall, N. A.; Brinkmann, J.; Brunner, R. J.; Fukugita, M.; Szalay, A. S.; Szokoly, G. P.; York, D. G.: A survey of z > 5.7 quasars in the sloan digital sky survey. III. Discovery of five additional quasars. The Astronomical Journal 128 (2), pp. 515 - 522 (2004)

Gallo, L. C.; Boller, T.; Brandt, W. N.; Fabian, A. C.; Grupe, D.: An intense soft excess and evidence for light bending in the luminous narrow-line quasar PHL 1092. Monthly Notices of the Royal Astronomical Society 352 (3), pp. 744 - 752 (2004)

Kirsch, M. G. F.; Mukerjee, K.; Breitfellner, M. G.; Djavidnia, S.; Freyberg, M. J.; Kendziorra, E.; Smith, M. J. S.: Studies of orbital parameters and pulse profile of the accreting millisecond pulsar XTE J1807-294. Astronomy & Astrophysics 423 (2), pp. L9 - L12 (2004)

Popesso, P.; Böhringer, H.; Brinkmann, J.; Voges, W.; York, D. G.: RASS-SDSS Galaxy clusters survey. I. The catalog and the correlation of X-ray and optical properties. Astronomy & Astrophysics 423 (2), pp. 449 - 467 (2004)