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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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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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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Dissecting X-ray—Emitting Gas Around the Center of Our Galaxy
Wang, Q. D., Nowak, M. A., Markoff, S. B., Baganoff, F. K., Nayakshin, S., Yuan, F., Cuadra, J., Davis, J., Dexter, J., Fabian, A. C., Grosso, N., Haggard, D., Houck, J., Ji, L., Li, Z., Neilsen, J., Porquet, D., Ripple, F., Shcherbakov, R. V.
Published in Science (American Association for the Advancement of Science) (30.08.2013)
Published in Science (American Association for the Advancement of Science) (30.08.2013)
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X-ray spectral components of the blazar and binary black hole candidate OJ 287 (2005–2020)
Komossa, S, Grupe, D, Parker, M L, Gómez, J L, Valtonen, M J, Nowak, M A, Jorstad, S G, Haggard, D, Chandra, S, Ciprini, S, Dey, L, Gopakumar, A, Hada, K, Markoff, S, Neilsen, J
Published in Monthly notices of the Royal Astronomical Society (01.07.2021)
Published in Monthly notices of the Royal Astronomical Society (01.07.2021)
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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
A powerful flare from Sgr A confirms the synchrotron nature of the X-ray emission
Ponti, G., George, E., Scaringi, S., Zhang, S., Jin, C., Dexter, J., Terrier, R., Clavel, M., Degenaar, N., Eisenhauer, F., Genzel, R., Gillessen, S., Goldwurm, A., Habibi, M., Haggard, D., Hailey, C., Harrison, F., Merloni, A., Mori, K., Nandra, K., Ott, T., Pfuhl, O., Plewa, P. M., Waisberg, I.
Published in Monthly notices of the Royal Astronomical Society (01.06.2017)
Published in Monthly notices of the Royal Astronomical Society (01.06.2017)
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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
A CHANDRA /HETGS CENSUS OF X-RAY VARIABILITY FROM Sgr A DURING 2012
Neilsen, J, Nowak, M A, Gammie, C, Dexter, J, Markoff, S, Haggard, D, Nayakshin, S, Wang, Q D, Grosso, N, Porquet, D
Published in The Astrophysical journal (01.09.2013)
Published in The Astrophysical journal (01.09.2013)
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Fifteen years of XMM–Newton and Chandra monitoring of Sgr A★: evidence for a recent increase in the bright flaring rate
Ponti, G., De Marco, B., Morris, M. R., Merloni, A., Muñoz-Darias, T., Clavel, M., Haggard, D., Zhang, S., Nandra, K., Gillessen, S., Mori, K., Neilsen, J., Rea, N., Degenaar, N., Terrier, R., Goldwurm, A.
Published in Monthly notices of the Royal Astronomical Society (01.12.2015)
Published in Monthly notices of the Royal Astronomical Society (01.12.2015)
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A Swift study of long-term changes in the X-ray flaring properties of Sagittarius A
Andrés, A, van den Eijnden, J, Degenaar, N, Evans, P A, Chatterjee, K, Reynolds, M, Miller, J M, Kennea, J, Wijnands, R, Markoff, S, Altamirano, D, Heinke, C O, Bahramian, A, Ponti, G, Haggard, D
Published in Monthly notices of the Royal Astronomical Society (01.02.2022)
Published in Monthly notices of the Royal Astronomical Society (01.02.2022)
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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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The X-Ray Outburst of the Galactic Center Magnetar over Six Years of Chandra Observations
Rea, N., Coti Zelati, F., Viganò, D., Papitto, A., Baganoff, F., Borghese, A., Campana, S., Esposito, P., Haggard, D., Israel, G. L., Mereghetti, S., Mignani, R. P., Perna, R., Pons, J. A., Ponti, G., Stella, L., Torres, D. F., Turolla, R., Zane, S.
Published in The Astrophysical journal (01.05.2020)
Published in The Astrophysical journal (01.05.2020)
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Extended radio emission in the galaxy cluster MS 0735.6+7421 detected with the Karl G. Jansky Very Large Array
Bégin, T, Hlavacek-Larrondo, J, Rhea, C L, Gendron-Marsolais, M, McNamara, B, van Weeren, R J, Richard-Laferrière, A, Guité, L, Prasow-Émond, M, Haggard, D
Published in Monthly notices of the Royal Astronomical Society (01.02.2023)
Published in Monthly notices of the Royal Astronomical Society (01.02.2023)
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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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Stellar SEDs from 0.3 to 2.5 μm: Tracing the Stellar Locus and Searching for Color Outliers in the SDSS and 2MASS
Covey, K. R, Ivezić, Ž, Schlegel, D, Finkbeiner, D, Padmanabhan, N, Lupton, R. H, Agüeros, M. A, Bochanski, J. J, Hawley, S. L, West, A. A, Seth, A, Kimball, A, Gogarten, S. M, Claire, M, Haggard, D, Kaib, N, Schneider, D. P, Sesar, B
Published in The Astronomical journal (01.12.2007)
Published in The Astronomical journal (01.12.2007)
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The Chandra Dust-scattering Halo of Galactic Center Transient Swift J174540.7-290015
Corrales, L. R., Mon, B., Haggard, D., Baganoff, F. K., Garmire, G., Degenaar, N., Reynolds, M.
Published in The Astrophysical journal (20.04.2017)
Published in The Astrophysical journal (20.04.2017)
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THE PECULIAR GALACTIC CENTER NEUTRON STAR X-RAY BINARY XMM J174457-2850.3
Degenaar, N, Wijnands, R, Reynolds, M T, Miller, J M, Altamirano, D, Kennea, J, Gehrels, N, Haggard, D, Ponti, G
Published in The Astrophysical journal (10.09.2014)
Published in The Astrophysical journal (10.09.2014)
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On the Fe K absorption – accretion state connection in the Galactic Centre neutron star X-ray binary AX J1745.6-2901
Ponti, G., Bianchi, S., Muñoz-Darias, T., De Marco, B., Dwelly, T., Fender, R. P., Nandra, K., Rea, N., Mori, K., Haggard, D., Heinke, C. O., Degenaar, N., Aramaki, T., Clavel, M., Goldwurm, A., Hailey, C. J., Israel, G. L., Morris, M. R., Rushton, A., Terrier, R.
Published in Monthly notices of the Royal Astronomical Society (11.01.2015)
Published in Monthly notices of the Royal Astronomical Society (11.01.2015)
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