Universität zu Köln

2022

Boyce, H., Haggard, D., Witzel, G., von Fellenberg, S., Willner, S. P., Becklin, E. E., Do, T., Eckart, A., Fazio, G. G., Gurwell, M. A., Hora, J. L., Markoff, S., Morris, M. R., Neilsen, J., Nowak, M., Smith, H. A. and Zhang, S. (2022). Multiwavelength Variability of Sagittarius A* in 2019 July. Astrophys. J., 931 (1). BRISTOL: IOP Publishing Ltd. ISSN 1538-4357

2021

Abuter, R., Amorim, A., Bauboeck, M., Baganoff, F., Berger, J. P., Boyce, H., Bonnet, H., Brandner, W., Clenet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Dallilar, Y., Drescher, A., Eckart, A., Eisenhauer, F., Fazio, G. G., Schreiber, N. M. Foerster, Foster, K., Gammie, C., Garcia, P., Gao, F., Gendron, E., Genzel, R., Ghisellini, G., Gillessen, S., Gurwell, M. A., Habibi, M., Haggard, D., Hailey, C., Harrison, F. A., Haubois, X., Heissel, G., Henning, T., Hippler, S., Hora, J. L., Horrobin, M., Jimenez-Rosales, A., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Lacour, S., Lapeyrere, V, Le Bouquin, J-B, Lena, P., Lowrance, P. J., Lutz, D., Markoff, S., Mori, K., Morris, M. R., Neilsen, J., Nowak, M., Ott, T., Paumard, T., Perraut, K., Perrin, G., Ponti, G., Pfuhl, O., Rabien, S., Rodriguez-Coira, G., Shangguan, J., Shimizu, T., Scheithauer, S., Smith, H. A., Stadler, J., Stern, D. K., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Vincent, F., von Fellenberg, S., Waisberg, I, Widmann, F., Wieprecht, E., Wiezorrek, E., Willner, S. P., Witzel, G., Woillez, J., Yazici, S., Young, A., Zhang, S. and Zins, G. (2021). Constraining particle acceleration in Sgr A(*) with simultaneous GRAVITY, Spitzer, NuSTAR, and Chandra observations. Astron. Astrophys., 654. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

Witzel, G., Martinez, G., Willner, S. P., Becklin, E. E., Boyce, H., Do, T., Eckart, A., Fazio, G. G., Ghez, A., Gurwell, M. A., Haggard, D., Herrero-Illana, R., Hora, J. L., Li, Z., Liu, J., Marchili, N., Morris, Mark R., Smith, Howard A., Subroweit, M. and Zensus, J. A. (2021). Rapid Variability of Sgr A* across the Electromagnetic Spectrum. Astrophys. J., 917 (2). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4357

2018

Britzen, S., Fendt, C., Witzel, G., Qian, S. -J., Pashchenko, I. N., Kurtanidze, O., Zajacek, M., Martinez, G., Karas, V., Aller, M., Aller, H., Eckart, A., Nilsson, K., Arevalo, P., Cuadra, J., Subroweit, M. and Witzel, A. (2018). OJ287: deciphering the 'Rosetta stone of blazars. Mon. Not. Roy. Astron. Soc., 478 (3). S. 3199 - 3220. OXFORD: OXFORD UNIV PRESS. ISSN 1365-2966

2017

Subroweit, M., Garcia-Marin, M., Eckart, A., Borkar, A., Valencia-S, M., Witzel, G., Shahzamanian, B. and Straubmeier, C. (2017). Submillimeter and radio variability of Sagittarius A* A statistical analysis. Astron. Astrophys., 601. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

2015

Shahzamanian, B., Eckart, A., Valencia-S, M., Witzel, G., Zamaninasab, M., Sabha, N., Garcia-Marin, M., Karas, V., Karssen, G. D., Borkar, A., Dovciak, M., Kunneriath, D., Bursa, M., Buchholz, R., Moultaka, J. and Straubmeier, C. (2015). Polarized light from Sagittarius A(star) in the near-infrared K-s-band. Astron. Astrophys., 576. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

Shahzamanian, B., Eckart, A., Valencia-S, M., Witzel, G., Zamaninasab, M., Sabha, N., Garcia-Marin, M., Karas, V., Karssen, G. D., Borkar, A., Dovciak, M., Kunneriath, D., Bursa, M., Buchholz, R., Moultaka, J. and Straubmeier, C. (2015). Polarized light from Sagittarius A(star) in the near-infrared K-s-band. Astron. Astrophys., 576. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

2012

Witzel, G., Eckart, A., Bremer, M., Zamaninasab, M., Shahzamanian, B., Valencia-S, M., Schoedel, R., Karas, V., Lenzen, R., Marchili, N., Sabha, N., Garcia-Marin, M., Buchholz, R. M., Kunneriath, D. and Straubmeier, C. (2012). SOURCE-INTRINSIC NEAR-INFRARED PROPERTIES OF SGR A*: TOTAL INTENSITY MEASUREMENTS. Astrophys. J. Suppl. Ser., 203 (2). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4365

2011

Buchholz, R. M., Witzel, G., Schoedel, R., Eckart, A., Bremer, M. and Muzic, K. (2011). Adaptive-optics assisted near-infrared polarization measurements of sources in the Galactic center. Astron. Astrophys., 534. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 0004-6361

Garcia-Marin, M., Eckart, A., Weiss, A., Witzel, G., Bremer, M., Zamaninasab, M., Morris, M. R., Schoedel, R., Kunneriath, D., Nishiyama, S. ORCID: 0000-0002-9440-7172, Baganoff, F., Dovciak, M., Sabha, N., Duschl, W. J., Moultaka, J., Karas, V., Najarro, F., Muzic, K., Straubmeier, C., Vogel, S. N., Krips, M. and Wiesemeyer, H. (2011). EXTENDED SUBMILLIMETER EMISSION OF THE GALACTIC CENTER AND NEAR-INFRARED/SUBMILLIMETER VARIABILITY OF ITS SUPERMASSIVE BLACK HOLE. Astrophys. J., 738 (2). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4357

2010

Muzic, K., Eckart, A., Schoedel, R., Buchholz, R., Zamaninasab, M. and Witzel, G. (2010). Comet-shaped sources at the Galactic center Evidence of a wind from the central 0.2 pc. Astron. Astrophys., 521. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 0004-6361