OJ287: Deciphering the “Rosetta stone of blazars★”
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, Arévalo, P, Cuadra, J, Subroweit, M, Witzel, A
Published in Monthly notices of the Royal Astronomical Society (26.04.2018)
Published in Monthly notices of the Royal Astronomical Society (26.04.2018)
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Journal Article
Variability Timescale and Spectral Index of Sgr A in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole
Witzel, G., Martinez, G., Hora, J., Willner, S. P., Morris, M. R., Gammie, C., Becklin, E. E., Ashby, M. L. N., Baganoff, F., Carey, S., Do, T., Fazio, G. G., Ghez, A., Glaccum, W. J., Haggard, D., Herrero-Illana, R., Ingalls, J., Narayan, R., Smith, H. A.
Published in The Astrophysical journal (10.08.2018)
Published in The Astrophysical journal (10.08.2018)
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Journal Article
Rapid Variability of Sgr A across the Electromagnetic Spectrum
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., Zensus, J. A.
Published in The Astrophysical journal (01.08.2021)
Published in The Astrophysical journal (01.08.2021)
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Journal Article
General relativistic MHD simulations of non-thermal flaring in Sagittarius A
Chatterjee, K, Markoff, S, Neilsen, J, Younsi, Z, Witzel, G, Tchekhovskoy, A, Yoon, D, Ingram, A, van der Klis, M, Boyce, H, Do, T, Haggard, D, Nowak, M A
Published in Monthly notices of the Royal Astronomical Society (01.11.2021)
Published in Monthly notices of the Royal Astronomical Society (01.11.2021)
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Journal Article
AN IMPROVED DISTANCE AND MASS ESTIMATE FOR SGR A FROM A MULTISTAR ORBIT ANALYSIS
Boehle, A., Ghez, A. M., Schödel, R., Meyer, L., Yelda, S., Albers, S., Martinez, G. D., Becklin, E. E., Do, T., Lu, J. R., Matthews, K., Morris, M. R., Sitarski, B., Witzel, G.
Published in The Astrophysical journal (10.10.2016)
Published in The Astrophysical journal (10.10.2016)
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Journal Article
Testing General Relativity with Stellar Orbits around the Supermassive Black Hole in Our Galactic Center
Hees, A, Do, T, Ghez, A M, Martinez, G D, Naoz, S, Becklin, E E, Boehle, A, Chappell, S, Chu, D, Dehghanfar, A, Kosmo, K, Lu, J R, Matthews, K, Morris, M R, Sakai, S, Schödel, R, Witzel, G
Published in Physical review letters (26.05.2017)
Published in Physical review letters (26.05.2017)
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Journal Article
Simultaneous X-Ray and Infrared Observations of Sagittarius A's Variability
Boyce, H., Haggard, D., Witzel, G., Willner, S. P., Neilsen, J., Hora, J. L., Markoff, S., Ponti, G., Baganoff, F., Becklin, E. E., Fazio, G. G., Lowrance, P., Morris, M. R., Smith, H. A.
Published in The Astrophysical journal (01.02.2019)
Published in The Astrophysical journal (01.02.2019)
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Journal Article
SOURCE-INTRINSIC NEAR-INFRARED PROPERTIES OF SGR A: TOTAL INTENSITY MEASUREMENTS
Witzel, G, Eckart, A, Bremer, M, ZAMANINASAB, M, Shahzamanian, B, Valencia-S, M, SCHODEL, R, Karas, V, Lenzen, R, Marchili, N, Sabha, N, Garcia-Marin, M, Buchholz, R M, KUNNERIATH, D, STRAUBMEIER, C
Published in The Astrophysical journal. Supplement series (01.12.2012)
Published in The Astrophysical journal. Supplement series (01.12.2012)
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Journal Article
Multiwavelength Light Curves of Two Remarkable Sagittarius A Flares
Fazio, G. G., Hora, J. L., Witzel, G., Willner, S. P., Ashby, M. L. N., Baganoff, F., Becklin, E., Carey, S., Haggard, D., Gammie, C., Ghez, A., Gurwell, M. A., Ingalls, J., Marrone, D., Morris, M. R., Smith, H. A.
Published in The Astrophysical journal (01.09.2018)
Published in The Astrophysical journal (01.09.2018)
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Journal Article
KECK OBSERVATIONS OF THE GALACTIC CENTER SOURCE G2: GAS CLOUD OR STAR?
Phifer, K, DO, T, Meyer, L, Ghez, A M, Witzel, G, YELDA, S, Boehle, A, Lu, J R, Morris, M R, Becklin, E E, Matthews, K
Published in Astrophysical journal. Letters (10.08.2013)
Published in Astrophysical journal. Letters (10.08.2013)
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Journal Article
DETECTION OF GALACTIC CENTER SOURCE G2 AT 3.8 μm DURING PERIAPSE PASSAGE
Witzel, G, Ghez, A M, Morris, M R, Sitarski, B N, Boehle, A, Naoz, S, Campbell, R, Becklin, E E, Canalizo, G, Chappell, S
Published in Astrophysical journal. Letters (20.11.2014)
Published in Astrophysical journal. Letters (20.11.2014)
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Journal Article
The Post-periapsis Evolution of Galactic Center Source G1: The Second Case of a Resolved Tidal Interaction with a Supermassive Black Hole
Witzel, G., Sitarski, B. N., Ghez, A. M., Morris, M. R., Hees, A., Do, T., Lu, J. R., Naoz, S., Boehle, A., Martinez, G., Chappell, S., Schödel, R., Meyer, L., Yelda, S., Becklin, E. E., Matthews, K.
Published in The Astrophysical journal (20.09.2017)
Published in The Astrophysical journal (20.09.2017)
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Journal Article
THE X-RAY FLUX DISTRIBUTION OF SAGITTARIUS A AS SEEN BY CHANDRA
Neilsen, J, Markoff, S, Nowak, M A, Dexter, J, Witzel, G, Barriere, N, Li, Y, Baganoff, F K, Degenaar, N, Fragile, P C, Gammie, C, Goldwurm, A, Grosso, N, Haggard, D
Published in The Astrophysical journal (01.02.2015)
Published in The Astrophysical journal (01.02.2015)
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Journal Article
Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors: with Applications from Black Holes to Planets
O'Neil, K. Kosmo, Martinez, G. D., Hees, A., Ghez, A. M., Do, T., Witzel, G., Konopacky, Q., Becklin, E. E., Chu, D. S., Lu, J. R., Matthews, K., Sakai, S.
Published in The Astronomical journal (01.07.2019)
Published in The Astronomical journal (01.07.2019)
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Journal Article
Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic center
Eckart, A., Mužić, K., Yazici, S., Sabha, N., Shahzamanian, B., Witzel, G., Moser, L., Garcia-Marin, M., Valencia-S., M., Jalali, B., Bremer, M., Straubmeier, C., Rauch, C., Buchholz, R., Kunneriath, D., Moultaka, J.
Published in Astronomy and astrophysics (Berlin) (01.03.2013)
Published in Astronomy and astrophysics (Berlin) (01.03.2013)
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Journal Article
Multiwavelength Variability of Sagittarius A in 2019 July
Boyce, H., Haggard, D., Witzel, G., Fellenberg, S. von, 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., Zhang, S.
Published in The Astrophysical journal (01.05.2022)
Published in The Astrophysical journal (01.05.2022)
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Journal Article
Consistency of the Infrared Variability of SGR A over 22 yr
Chen, Zhuo, Gallego-Cano, E., Do, T., Witzel, G., Ghez, A. M., Schödel, R., Sitarski, B. N., Becklin, E. E., Lu, J., Morris, M. R., Dehghanfar, A., Gautam, A. K., Hees, A., Hosek, M. W., Jia, S., Mangian, A. C., Matthews, K.
Published in Astrophysical journal. Letters (10.09.2019)
Published in Astrophysical journal. Letters (10.09.2019)
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Journal Article
Flaremodel: An open-source Python package for one-zone numerical modelling of synchrotron sources
Dallilar, Y., von Fellenberg, S., Bauboeck, M., de Zeeuw, P. T., Drescher, A., Eisenhauer, F., Genzel, R., Gillessen, S., Habibi, M., Ott, T., Ponti, G., Stadler, J., Straub, O., Widmann, F., Witzel, G., Young, A.
Published in Astronomy and astrophysics (Berlin) (01.02.2022)
Published in Astronomy and astrophysics (Berlin) (01.02.2022)
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